Flow rate: 𝑄[!!
" ]; cross section: 𝐴[m#]; void fraction: 𝜖(fluid volume/column volume);
superficial velocity: 𝑢 = $% *
!" +; interstitial velocity: 𝑉 = &
' ; phase ratio: 𝜈 = ()''
Fluid phase concentration of the solute : 𝑐[mol/m*];adsorbed phase concentration: 𝑛[mol/m*]
Phase equilibrium, adsorption isotherm: 𝑛 = 𝑓(𝑐) = +,1+-,: Langmuiradsorption isotherm
Assumptions: isothermal; flux is due only to convection (no diffusion); equilibrium between fluid and solid; solute dissolved in a solvent, which is inert; superficial velocity is constant.
𝐹(𝑐) = 𝑢𝑐𝑀(𝑐) = 𝜖𝑐 + (1 − 𝜖)𝑛
9𝜖 + (1 − 𝜖)𝑓.(𝑐):𝑐/ + 𝑢𝑐0 = 0𝑐 = 𝑐(𝑡, 𝑧)
𝑚𝑜𝑙𝑚#
𝑚#
𝑔𝑔𝑚* =
𝑚𝑜𝑙𝑚*
𝑐1. 𝑐+𝑐
𝑛
𝜎(𝑐) =9𝜖 + (1 − 𝜖)𝑓.(𝑐):
𝑢 =1 + 𝜈𝑓.(𝑐)
𝑉 .𝜎.(𝑐) =𝜈𝑓′′(𝑐)𝑉 < 0
𝑓(𝑐) =𝐻𝑐
1 + 𝐾𝑐.𝑓.(𝑐) =
𝐻(1 + 𝐾𝑐)#
. 𝑓..(𝑐) < 0. 𝜆(𝑐) =1
σ(𝑐)=𝑑𝑧𝑑𝑡
𝑧 = 0𝑧 = 𝐿
DESORPTION (𝑐1 = 0), simple wave
𝑧 = 0𝑧 = 𝐿
ADSORPTION (𝑐1 = 0)
𝑧 = 0𝑧 = 𝐿
Mean of the slopes (through integration)1.Red line splits triangle in two equal parts2.
Conservation law in finite form9𝑀(𝑡 + Δ𝑡) − 𝑀(𝑡):Δ𝑧 = 9𝐹(𝑧) − 𝐹(𝑧 + Δ𝑧):Δ𝑡
N9𝜖𝑐(𝑡 + Δ𝑡) + (1 − 𝜖)𝑛(𝑡 + Δ𝑡): − 9𝜖𝑐(𝑡) + (1 − 𝜖)𝑛(𝑡):O Δ𝑧 = 9𝑢𝑐(𝑧) − 𝑢𝑐(𝑧 + Δ𝑧):Δ𝑡 = 𝑢Δ𝑡(𝑐+ − 𝑐1)= 9(𝜖𝑐+ + (1 − 𝜖)𝑛+) − (𝜖𝑐1 + (1 − 𝜖)𝑛1):Δ𝑧
Δ𝑡Δ𝑧
= 𝜎P(𝑐1, 𝑐+) =1 + 𝜈Δ𝑛Δ𝑐
𝑉=1𝑉Q1 + 𝜈
[𝑓][𝑐]R 𝜎(𝑐) =
1𝑉(1 + 𝜈
𝑑𝑓𝑑𝑐)
[𝑓][𝑐]
=1
𝑐+ − 𝑐1Q
𝐻𝑐+1 + 𝐾𝑐+
−𝐻𝑐1
(1 + 𝐾𝑐1)R =
𝐻(1 + 𝐾𝑐+)(1 + 𝐾𝑐1)
𝑑𝑓𝑑𝑐
=𝐻
(1 + 𝐾𝑐)#
1. Langmuir isotherm, anti-Langmuir, BET 28-29, 322. Chromatographic cycle 29-303. Pair of equations (32-38)4. Sedimentation 38-39 5. Constant pattern/shock layer 30-32 (19.05)
Residue Curve Maps applied to batch distillation (26.05)
𝑐
𝑛
𝑓(𝑐) =𝐻𝑐
1 − 𝐾𝑐
𝑓(𝑐) = 𝑎𝑐 + 𝑏𝑐#
Adsorption: simple wave Desorption: shock
Adsorption:
𝑓1 − 𝑓2𝑐1 − 𝑐2
= 𝑓′(𝑐2)
BET isotherm
𝑡+ = 𝜎(𝑐+)𝐿.𝑡1 = 𝜎(𝑐1)𝐿𝑡(𝑐) = 𝜎(𝑐)𝐿. 𝑐(𝑡). 𝑡+ ≤ 𝑡 ≤ 𝑡1𝑉𝑡𝐿= 1 + 𝜈
𝐻(1 + 𝐾𝑐)2
. (1 + 𝐾𝑐)2 =𝜈𝐻
𝑉𝑡𝐿 − 1
𝑡3: pulse
𝑡2 =𝐿𝑉Q1 +
𝜈𝐻1 + 𝐾𝑐+
R
Breakthroughtimedependson𝑐4556 = 𝑐+
𝑡7 = 𝑡3 +𝐿𝑉(1 + 𝜈𝐻)
Regenerationtimedoesnotdependon𝑐4556
𝑡3: pulse
𝑡7 = 𝑡3 +𝐿𝑉(1 + 𝜈𝐻)
Regenerationtimedoesnotdependon𝑐4556
𝑡8 =function(𝑐8)
𝑢𝐴𝑐9𝑡3 = 𝑢𝐴h 𝑐(𝑡)𝑑𝑡 =:
7
𝑢𝐴𝐿𝜈𝑉
h 𝑐𝑓..(𝑐)𝑑𝑐 =⬚
7
,"
=𝑢𝐴𝐿𝜈𝑉
[𝑐𝑓. − 𝑓],"7 =
𝑢𝐴𝐿𝜈𝑉
9𝑓(𝑐8) − 𝑐8𝑓.(𝑐8):Singleimplicitequationin𝑐8
𝑡(𝑐) = 𝜎(𝑐)𝐿
𝑑𝑡 = 𝐿𝑑𝜎 =𝐿𝑑𝜎𝑑𝑐 𝑑𝑐 =
𝐿𝑉 𝜈𝑓
..(𝑐)𝑑𝑐
𝐾𝑐8 =𝛽
1 − 𝛽. 𝛽 = √
𝑐9𝑡3𝑉𝐾𝐿𝜈𝐻
Equilibrium chromatography (isothermal adsorption)Tuesday, 5 May 2020 13:01
Flow rate: 𝑄[!!
" ]; cross section: 𝐴[m#]; void fraction: 𝜖(fluid volume/column volume);
superficial velocity: 𝑢 = $% *
!" +; interstitial velocity: 𝑉 = &
' ; phase ratio: 𝜈 = ()''
Fluid phase concentration of the solute : 𝑐[mol/m*];adsorbed phase concentration: 𝑛[mol/m*]
Phase equilibrium, adsorption isotherm: 𝑛 = 𝑓(𝑐) = +,1+-,: Langmuiradsorption isotherm
Assumptions: isothermal; flux is due only to convection (no diffusion); equilibrium between fluid and solid; solute dissolved in a solvent, which is inert; superficial velocity is constant.
𝐹(𝑐) = 𝑢𝑐𝑀(𝑐) = 𝜖𝑐 + (1 − 𝜖)𝑛
9𝜖 + (1 − 𝜖)𝑓.(𝑐):𝑐/ + 𝑢𝑐0 = 0𝑐 = 𝑐(𝑡, 𝑧)
𝑚𝑜𝑙𝑚#
𝑚#
𝑔𝑔𝑚* =
𝑚𝑜𝑙𝑚*
𝑐1. 𝑐+𝑐
𝑛
𝜎(𝑐) =9𝜖 + (1 − 𝜖)𝑓.(𝑐):
𝑢 =1 + 𝜈𝑓.(𝑐)
𝑉 .𝜎.(𝑐) =𝜈𝑓′′(𝑐)𝑉 < 0
𝑓(𝑐) =𝐻𝑐
1 + 𝐾𝑐.𝑓.(𝑐) =
𝐻(1 + 𝐾𝑐)#
. 𝑓..(𝑐) < 0. 𝜆(𝑐) =1
σ(𝑐)=𝑑𝑧𝑑𝑡
𝑧 = 0𝑧 = 𝐿
DESORPTION (𝑐1 = 0), simple wave
𝑧 = 0𝑧 = 𝐿
ADSORPTION (𝑐1 = 0)
𝑧 = 0𝑧 = 𝐿
Mean of the slopes (through integration)1.Red line splits triangle in two equal parts2.
Conservation law in finite form9𝑀(𝑡 + Δ𝑡) − 𝑀(𝑡):Δ𝑧 = 9𝐹(𝑧) − 𝐹(𝑧 + Δ𝑧):Δ𝑡
N9𝜖𝑐(𝑡 + Δ𝑡) + (1 − 𝜖)𝑛(𝑡 + Δ𝑡): − 9𝜖𝑐(𝑡) + (1 − 𝜖)𝑛(𝑡):O Δ𝑧 = 9𝑢𝑐(𝑧) − 𝑢𝑐(𝑧 + Δ𝑧):Δ𝑡 = 𝑢Δ𝑡(𝑐+ − 𝑐1)= 9(𝜖𝑐+ + (1 − 𝜖)𝑛+) − (𝜖𝑐1 + (1 − 𝜖)𝑛1):Δ𝑧
Δ𝑡Δ𝑧
= 𝜎P(𝑐1, 𝑐+) =1 + 𝜈Δ𝑛Δ𝑐
𝑉=1𝑉Q1 + 𝜈
[𝑓][𝑐]R 𝜎(𝑐) =
1𝑉(1 + 𝜈
𝑑𝑓𝑑𝑐)
[𝑓][𝑐]
=1
𝑐+ − 𝑐1Q
𝐻𝑐+1 + 𝐾𝑐+
−𝐻𝑐1
(1 + 𝐾𝑐1)R =
𝐻(1 + 𝐾𝑐+)(1 + 𝐾𝑐1)
𝑑𝑓𝑑𝑐
=𝐻
(1 + 𝐾𝑐)#
1. Langmuir isotherm, anti-Langmuir, BET 28-29, 322. Chromatographic cycle 29-303. Pair of equations (32-38)4. Sedimentation 38-39 5. Constant pattern/shock layer 30-32 (19.05)
Residue Curve Maps applied to batch distillation (26.05)
𝑐
𝑛
𝑓(𝑐) =𝐻𝑐
1 − 𝐾𝑐
𝑓(𝑐) = 𝑎𝑐 + 𝑏𝑐#
Adsorption: simple wave Desorption: shock
Adsorption:
𝑓1 − 𝑓2𝑐1 − 𝑐2
= 𝑓′(𝑐2)
BET isotherm
𝑡+ = 𝜎(𝑐+)𝐿.𝑡1 = 𝜎(𝑐1)𝐿𝑡(𝑐) = 𝜎(𝑐)𝐿. 𝑐(𝑡). 𝑡+ ≤ 𝑡 ≤ 𝑡1𝑉𝑡𝐿= 1 + 𝜈
𝐻(1 + 𝐾𝑐)2
. (1 + 𝐾𝑐)2 =𝜈𝐻
𝑉𝑡𝐿 − 1
𝑡3: pulse
𝑡2 =𝐿𝑉Q1 +
𝜈𝐻1 + 𝐾𝑐+
R
Breakthroughtimedependson𝑐4556 = 𝑐+
𝑡7 = 𝑡3 +𝐿𝑉(1 + 𝜈𝐻)
Regenerationtimedoesnotdependon𝑐4556
𝑡3: pulse
𝑡7 = 𝑡3 +𝐿𝑉(1 + 𝜈𝐻)
Regenerationtimedoesnotdependon𝑐4556
𝑡8 =function(𝑐8)
𝑢𝐴𝑐9𝑡3 = 𝑢𝐴h 𝑐(𝑡)𝑑𝑡 =:
7
𝑢𝐴𝐿𝜈𝑉
h 𝑐𝑓..(𝑐)𝑑𝑐 =⬚
7
,"
=𝑢𝐴𝐿𝜈𝑉
[𝑐𝑓. − 𝑓],"7 =
𝑢𝐴𝐿𝜈𝑉
9𝑓(𝑐8) − 𝑐8𝑓.(𝑐8):Singleimplicitequationin𝑐8
𝑡(𝑐) = 𝜎(𝑐)𝐿
𝑑𝑡 = 𝐿𝑑𝜎 =𝐿𝑑𝜎𝑑𝑐 𝑑𝑐 =
𝐿𝑉 𝜈𝑓
..(𝑐)𝑑𝑐
𝐾𝑐8 =𝛽
1 − 𝛽. 𝛽 = √
𝑐9𝑡3𝑉𝐾𝐿𝜈𝐻
Equilibrium chromatography (isothermal adsorption)Tuesday, 5 May 2020 13:01
Flow rate: 𝑄[!!
" ]; cross section: 𝐴[m#]; void fraction: 𝜖(fluid volume/column volume);
superficial velocity: 𝑢 = $% *
!" +; interstitial velocity: 𝑉 = &
' ; phase ratio: 𝜈 = ()''
Fluid phase concentration of the solute : 𝑐[mol/m*];adsorbed phase concentration: 𝑛[mol/m*]
Phase equilibrium, adsorption isotherm: 𝑛 = 𝑓(𝑐) = +,1+-,: Langmuiradsorption isotherm
Assumptions: isothermal; flux is due only to convection (no diffusion); equilibrium between fluid and solid; solute dissolved in a solvent, which is inert; superficial velocity is constant.
𝐹(𝑐) = 𝑢𝑐𝑀(𝑐) = 𝜖𝑐 + (1 − 𝜖)𝑛
9𝜖 + (1 − 𝜖)𝑓.(𝑐):𝑐/ + 𝑢𝑐0 = 0𝑐 = 𝑐(𝑡, 𝑧)
𝑚𝑜𝑙𝑚#
𝑚#
𝑔𝑔𝑚* =
𝑚𝑜𝑙𝑚*
𝑐1. 𝑐+𝑐
𝑛
𝜎(𝑐) =9𝜖 + (1 − 𝜖)𝑓.(𝑐):
𝑢 =1 + 𝜈𝑓.(𝑐)
𝑉 .𝜎.(𝑐) =𝜈𝑓′′(𝑐)𝑉 < 0
𝑓(𝑐) =𝐻𝑐
1 + 𝐾𝑐.𝑓.(𝑐) =
𝐻(1 + 𝐾𝑐)#
. 𝑓..(𝑐) < 0. 𝜆(𝑐) =1
σ(𝑐)=𝑑𝑧𝑑𝑡
𝑧 = 0𝑧 = 𝐿
DESORPTION (𝑐1 = 0), simple wave
𝑧 = 0𝑧 = 𝐿
ADSORPTION (𝑐1 = 0)
𝑧 = 0𝑧 = 𝐿
Mean of the slopes (through integration)1.Red line splits triangle in two equal parts2.
Conservation law in finite form9𝑀(𝑡 + Δ𝑡) − 𝑀(𝑡):Δ𝑧 = 9𝐹(𝑧) − 𝐹(𝑧 + Δ𝑧):Δ𝑡
N9𝜖𝑐(𝑡 + Δ𝑡) + (1 − 𝜖)𝑛(𝑡 + Δ𝑡): − 9𝜖𝑐(𝑡) + (1 − 𝜖)𝑛(𝑡):O Δ𝑧 = 9𝑢𝑐(𝑧) − 𝑢𝑐(𝑧 + Δ𝑧):Δ𝑡 = 𝑢Δ𝑡(𝑐+ − 𝑐1)= 9(𝜖𝑐+ + (1 − 𝜖)𝑛+) − (𝜖𝑐1 + (1 − 𝜖)𝑛1):Δ𝑧
Δ𝑡Δ𝑧
= 𝜎P(𝑐1, 𝑐+) =1 + 𝜈Δ𝑛Δ𝑐
𝑉=1𝑉Q1 + 𝜈
[𝑓][𝑐]R 𝜎(𝑐) =
1𝑉(1 + 𝜈
𝑑𝑓𝑑𝑐)
[𝑓][𝑐]
=1
𝑐+ − 𝑐1Q
𝐻𝑐+1 + 𝐾𝑐+
−𝐻𝑐1
(1 + 𝐾𝑐1)R =
𝐻(1 + 𝐾𝑐+)(1 + 𝐾𝑐1)
𝑑𝑓𝑑𝑐
=𝐻
(1 + 𝐾𝑐)#
1. Langmuir isotherm, anti-Langmuir, BET 28-29, 322. Chromatographic cycle 29-303. Pair of equations (32-38)4. Sedimentation 38-39 5. Constant pattern/shock layer 30-32 (19.05)
Residue Curve Maps applied to batch distillation (26.05)
𝑐
𝑛
𝑓(𝑐) =𝐻𝑐
1 − 𝐾𝑐
𝑓(𝑐) = 𝑎𝑐 + 𝑏𝑐#
Adsorption: simple wave Desorption: shock
Adsorption:
𝑓1 − 𝑓2𝑐1 − 𝑐2
= 𝑓′(𝑐2)
BET isotherm
𝑡+ = 𝜎(𝑐+)𝐿.𝑡1 = 𝜎(𝑐1)𝐿𝑡(𝑐) = 𝜎(𝑐)𝐿. 𝑐(𝑡). 𝑡+ ≤ 𝑡 ≤ 𝑡1𝑉𝑡𝐿= 1 + 𝜈
𝐻(1 + 𝐾𝑐)2
. (1 + 𝐾𝑐)2 =𝜈𝐻
𝑉𝑡𝐿 − 1
𝑡3: pulse
𝑡2 =𝐿𝑉Q1 +
𝜈𝐻1 + 𝐾𝑐+
R
Breakthroughtimedependson𝑐4556 = 𝑐+
𝑡7 = 𝑡3 +𝐿𝑉(1 + 𝜈𝐻)
Regenerationtimedoesnotdependon𝑐4556
𝑡3: pulse
𝑡7 = 𝑡3 +𝐿𝑉(1 + 𝜈𝐻)
Regenerationtimedoesnotdependon𝑐4556
𝑡8 =function(𝑐8)
𝑢𝐴𝑐9𝑡3 = 𝑢𝐴h 𝑐(𝑡)𝑑𝑡 =:
7
𝑢𝐴𝐿𝜈𝑉
h 𝑐𝑓..(𝑐)𝑑𝑐 =⬚
7
,"
=𝑢𝐴𝐿𝜈𝑉
[𝑐𝑓. − 𝑓],"7 =
𝑢𝐴𝐿𝜈𝑉
9𝑓(𝑐8) − 𝑐8𝑓.(𝑐8):Singleimplicitequationin𝑐8
𝑡(𝑐) = 𝜎(𝑐)𝐿
𝑑𝑡 = 𝐿𝑑𝜎 =𝐿𝑑𝜎𝑑𝑐 𝑑𝑐 =
𝐿𝑉 𝜈𝑓
..(𝑐)𝑑𝑐
𝐾𝑐8 =𝛽
1 − 𝛽. 𝛽 = √
𝑐9𝑡3𝑉𝐾𝐿𝜈𝐻
Equilibrium chromatography (isothermal adsorption)Tuesday, 5 May 2020 13:01
Flow rate: 𝑄[!!
" ]; cross section: 𝐴[m#]; void fraction: 𝜖(fluid volume/column volume);
superficial velocity: 𝑢 = $% *
!" +; interstitial velocity: 𝑉 = &
' ; phase ratio: 𝜈 = ()''
Fluid phase concentration of the solute : 𝑐[mol/m*];adsorbed phase concentration: 𝑛[mol/m*]
Phase equilibrium, adsorption isotherm: 𝑛 = 𝑓(𝑐) = +,1+-,: Langmuiradsorption isotherm
Assumptions: isothermal; flux is due only to convection (no diffusion); equilibrium between fluid and solid; solute dissolved in a solvent, which is inert; superficial velocity is constant.
𝐹(𝑐) = 𝑢𝑐𝑀(𝑐) = 𝜖𝑐 + (1 − 𝜖)𝑛
9𝜖 + (1 − 𝜖)𝑓.(𝑐):𝑐/ + 𝑢𝑐0 = 0𝑐 = 𝑐(𝑡, 𝑧)
𝑚𝑜𝑙𝑚#
𝑚#
𝑔𝑔𝑚* =
𝑚𝑜𝑙𝑚*
𝑐1. 𝑐+𝑐
𝑛
𝜎(𝑐) =9𝜖 + (1 − 𝜖)𝑓.(𝑐):
𝑢 =1 + 𝜈𝑓.(𝑐)
𝑉 .𝜎.(𝑐) =𝜈𝑓′′(𝑐)𝑉 < 0
𝑓(𝑐) =𝐻𝑐
1 + 𝐾𝑐.𝑓.(𝑐) =
𝐻(1 + 𝐾𝑐)#
. 𝑓..(𝑐) < 0. 𝜆(𝑐) =1
σ(𝑐)=𝑑𝑧𝑑𝑡
𝑧 = 0𝑧 = 𝐿
DESORPTION (𝑐1 = 0), simple wave
𝑧 = 0𝑧 = 𝐿
ADSORPTION (𝑐1 = 0)
𝑧 = 0𝑧 = 𝐿
Mean of the slopes (through integration)1.Red line splits triangle in two equal parts2.
Conservation law in finite form9𝑀(𝑡 + Δ𝑡) − 𝑀(𝑡):Δ𝑧 = 9𝐹(𝑧) − 𝐹(𝑧 + Δ𝑧):Δ𝑡
N9𝜖𝑐(𝑡 + Δ𝑡) + (1 − 𝜖)𝑛(𝑡 + Δ𝑡): − 9𝜖𝑐(𝑡) + (1 − 𝜖)𝑛(𝑡):O Δ𝑧 = 9𝑢𝑐(𝑧) − 𝑢𝑐(𝑧 + Δ𝑧):Δ𝑡 = 𝑢Δ𝑡(𝑐+ − 𝑐1)= 9(𝜖𝑐+ + (1 − 𝜖)𝑛+) − (𝜖𝑐1 + (1 − 𝜖)𝑛1):Δ𝑧
Δ𝑡Δ𝑧
= 𝜎P(𝑐1, 𝑐+) =1 + 𝜈Δ𝑛Δ𝑐
𝑉=1𝑉Q1 + 𝜈
[𝑓][𝑐]R 𝜎(𝑐) =
1𝑉(1 + 𝜈
𝑑𝑓𝑑𝑐)
[𝑓][𝑐]
=1
𝑐+ − 𝑐1Q
𝐻𝑐+1 + 𝐾𝑐+
−𝐻𝑐1
(1 + 𝐾𝑐1)R =
𝐻(1 + 𝐾𝑐+)(1 + 𝐾𝑐1)
𝑑𝑓𝑑𝑐
=𝐻
(1 + 𝐾𝑐)#
1. Langmuir isotherm, anti-Langmuir, BET 28-29, 322. Chromatographic cycle 29-303. Pair of equations (32-38)4. Sedimentation 38-39 5. Constant pattern/shock layer 30-32 (19.05)
Residue Curve Maps applied to batch distillation (26.05)
𝑐
𝑛
𝑓(𝑐) =𝐻𝑐
1 − 𝐾𝑐
𝑓(𝑐) = 𝑎𝑐 + 𝑏𝑐#
Adsorption: simple wave Desorption: shock
Adsorption:
𝑓1 − 𝑓2𝑐1 − 𝑐2
= 𝑓′(𝑐2)
BET isotherm
𝑡+ = 𝜎(𝑐+)𝐿.𝑡1 = 𝜎(𝑐1)𝐿𝑡(𝑐) = 𝜎(𝑐)𝐿. 𝑐(𝑡). 𝑡+ ≤ 𝑡 ≤ 𝑡1𝑉𝑡𝐿= 1 + 𝜈
𝐻(1 + 𝐾𝑐)2
. (1 + 𝐾𝑐)2 =𝜈𝐻
𝑉𝑡𝐿 − 1
𝑡3: pulse
𝑡2 =𝐿𝑉Q1 +
𝜈𝐻1 + 𝐾𝑐+
R
Breakthroughtimedependson𝑐4556 = 𝑐+
𝑡7 = 𝑡3 +𝐿𝑉(1 + 𝜈𝐻)
Regenerationtimedoesnotdependon𝑐4556
𝑡3: pulse
𝑡7 = 𝑡3 +𝐿𝑉(1 + 𝜈𝐻)
Regenerationtimedoesnotdependon𝑐4556
𝑡8 =function(𝑐8)
𝑢𝐴𝑐9𝑡3 = 𝑢𝐴h 𝑐(𝑡)𝑑𝑡 =:
7
𝑢𝐴𝐿𝜈𝑉
h 𝑐𝑓..(𝑐)𝑑𝑐 =⬚
7
,"
=𝑢𝐴𝐿𝜈𝑉
[𝑐𝑓. − 𝑓],"7 =
𝑢𝐴𝐿𝜈𝑉
9𝑓(𝑐8) − 𝑐8𝑓.(𝑐8):Singleimplicitequationin𝑐8
𝑡(𝑐) = 𝜎(𝑐)𝐿
𝑑𝑡 = 𝐿𝑑𝜎 =𝐿𝑑𝜎𝑑𝑐 𝑑𝑐 =
𝐿𝑉 𝜈𝑓
..(𝑐)𝑑𝑐
𝐾𝑐8 =𝛽
1 − 𝛽. 𝛽 = √
𝑐9𝑡3𝑉𝐾𝐿𝜈𝐻
Equilibrium chromatography (isothermal adsorption)Tuesday, 5 May 2020 13:01
Flow rate: 𝑄[!!
" ]; cross section: 𝐴[m#]; void fraction: 𝜖(fluid volume/column volume);
superficial velocity: 𝑢 = $% *
!" +; interstitial velocity: 𝑉 = &
' ; phase ratio: 𝜈 = ()''
Fluid phase concentration of the solute : 𝑐[mol/m*];adsorbed phase concentration: 𝑛[mol/m*]
Phase equilibrium, adsorption isotherm: 𝑛 = 𝑓(𝑐) = +,1+-,: Langmuiradsorption isotherm
Assumptions: isothermal; flux is due only to convection (no diffusion); equilibrium between fluid and solid; solute dissolved in a solvent, which is inert; superficial velocity is constant.
𝐹(𝑐) = 𝑢𝑐𝑀(𝑐) = 𝜖𝑐 + (1 − 𝜖)𝑛
9𝜖 + (1 − 𝜖)𝑓.(𝑐):𝑐/ + 𝑢𝑐0 = 0𝑐 = 𝑐(𝑡, 𝑧)
𝑚𝑜𝑙𝑚#
𝑚#
𝑔𝑔𝑚* =
𝑚𝑜𝑙𝑚*
𝑐1. 𝑐+𝑐
𝑛
𝜎(𝑐) =9𝜖 + (1 − 𝜖)𝑓.(𝑐):
𝑢 =1 + 𝜈𝑓.(𝑐)
𝑉 .𝜎.(𝑐) =𝜈𝑓′′(𝑐)𝑉 < 0
𝑓(𝑐) =𝐻𝑐
1 + 𝐾𝑐.𝑓.(𝑐) =
𝐻(1 + 𝐾𝑐)#
. 𝑓..(𝑐) < 0. 𝜆(𝑐) =1
σ(𝑐)=𝑑𝑧𝑑𝑡
𝑧 = 0𝑧 = 𝐿
DESORPTION (𝑐1 = 0), simple wave
𝑧 = 0𝑧 = 𝐿
ADSORPTION (𝑐1 = 0)
𝑧 = 0𝑧 = 𝐿
Mean of the slopes (through integration)1.Red line splits triangle in two equal parts2.
Conservation law in finite form9𝑀(𝑡 + Δ𝑡) − 𝑀(𝑡):Δ𝑧 = 9𝐹(𝑧) − 𝐹(𝑧 + Δ𝑧):Δ𝑡
N9𝜖𝑐(𝑡 + Δ𝑡) + (1 − 𝜖)𝑛(𝑡 + Δ𝑡): − 9𝜖𝑐(𝑡) + (1 − 𝜖)𝑛(𝑡):O Δ𝑧 = 9𝑢𝑐(𝑧) − 𝑢𝑐(𝑧 + Δ𝑧):Δ𝑡 = 𝑢Δ𝑡(𝑐+ − 𝑐1)= 9(𝜖𝑐+ + (1 − 𝜖)𝑛+) − (𝜖𝑐1 + (1 − 𝜖)𝑛1):Δ𝑧
Δ𝑡Δ𝑧
= 𝜎P(𝑐1, 𝑐+) =1 + 𝜈Δ𝑛Δ𝑐
𝑉=1𝑉Q1 + 𝜈
[𝑓][𝑐]R 𝜎(𝑐) =
1𝑉(1 + 𝜈
𝑑𝑓𝑑𝑐)
[𝑓][𝑐]
=1
𝑐+ − 𝑐1Q
𝐻𝑐+1 + 𝐾𝑐+
−𝐻𝑐1
(1 + 𝐾𝑐1)R =
𝐻(1 + 𝐾𝑐+)(1 + 𝐾𝑐1)
𝑑𝑓𝑑𝑐
=𝐻
(1 + 𝐾𝑐)#
1. Langmuir isotherm, anti-Langmuir, BET 28-29, 322. Chromatographic cycle 29-303. Pair of equations (32-38)4. Sedimentation 38-39 5. Constant pattern/shock layer 30-32 (19.05)
Residue Curve Maps applied to batch distillation (26.05)
𝑐
𝑛
𝑓(𝑐) =𝐻𝑐
1 − 𝐾𝑐
𝑓(𝑐) = 𝑎𝑐 + 𝑏𝑐#
Adsorption: simple wave Desorption: shock
Adsorption:
𝑓1 − 𝑓2𝑐1 − 𝑐2
= 𝑓′(𝑐2)
BET isotherm
𝑡+ = 𝜎(𝑐+)𝐿.𝑡1 = 𝜎(𝑐1)𝐿𝑡(𝑐) = 𝜎(𝑐)𝐿. 𝑐(𝑡). 𝑡+ ≤ 𝑡 ≤ 𝑡1𝑉𝑡𝐿= 1 + 𝜈
𝐻(1 + 𝐾𝑐)2
. (1 + 𝐾𝑐)2 =𝜈𝐻
𝑉𝑡𝐿 − 1
𝑡3: pulse
𝑡2 =𝐿𝑉Q1 +
𝜈𝐻1 + 𝐾𝑐+
R
Breakthroughtimedependson𝑐4556 = 𝑐+
𝑡7 = 𝑡3 +𝐿𝑉(1 + 𝜈𝐻)
Regenerationtimedoesnotdependon𝑐4556
𝑡3: pulse
𝑡7 = 𝑡3 +𝐿𝑉(1 + 𝜈𝐻)
Regenerationtimedoesnotdependon𝑐4556
𝑡8 =function(𝑐8)
𝑢𝐴𝑐9𝑡3 = 𝑢𝐴h 𝑐(𝑡)𝑑𝑡 =:
7
𝑢𝐴𝐿𝜈𝑉
h 𝑐𝑓..(𝑐)𝑑𝑐 =⬚
7
,"
=𝑢𝐴𝐿𝜈𝑉
[𝑐𝑓. − 𝑓],"7 =
𝑢𝐴𝐿𝜈𝑉
9𝑓(𝑐8) − 𝑐8𝑓.(𝑐8):Singleimplicitequationin𝑐8
𝑡(𝑐) = 𝜎(𝑐)𝐿
𝑑𝑡 = 𝐿𝑑𝜎 =𝐿𝑑𝜎𝑑𝑐 𝑑𝑐 =
𝐿𝑉 𝜈𝑓
..(𝑐)𝑑𝑐
𝐾𝑐8 =𝛽
1 − 𝛽. 𝛽 = √
𝑐9𝑡3𝑉𝐾𝐿𝜈𝐻
Equilibrium chromatography (isothermal adsorption)Tuesday, 5 May 2020 13:01
Flow rate: 𝑄[!!
" ]; cross section: 𝐴[m#]; void fraction: 𝜖(fluid volume/column volume);
superficial velocity: 𝑢 = $% *
!" +; interstitial velocity: 𝑉 = &
' ; phase ratio: 𝜈 = ()''
Fluid phase concentration of the solute : 𝑐[mol/m*];adsorbed phase concentration: 𝑛[mol/m*]
Phase equilibrium, adsorption isotherm: 𝑛 = 𝑓(𝑐) = +,1+-,: Langmuiradsorption isotherm
Assumptions: isothermal; flux is due only to convection (no diffusion); equilibrium between fluid and solid; solute dissolved in a solvent, which is inert; superficial velocity is constant.
𝐹(𝑐) = 𝑢𝑐𝑀(𝑐) = 𝜖𝑐 + (1 − 𝜖)𝑛
9𝜖 + (1 − 𝜖)𝑓.(𝑐):𝑐/ + 𝑢𝑐0 = 0𝑐 = 𝑐(𝑡, 𝑧)
𝑚𝑜𝑙𝑚#
𝑚#
𝑔𝑔𝑚* =
𝑚𝑜𝑙𝑚*
𝑐1. 𝑐+𝑐
𝑛
𝜎(𝑐) =9𝜖 + (1 − 𝜖)𝑓.(𝑐):
𝑢 =1 + 𝜈𝑓.(𝑐)
𝑉 .𝜎.(𝑐) =𝜈𝑓′′(𝑐)𝑉 < 0
𝑓(𝑐) =𝐻𝑐
1 + 𝐾𝑐.𝑓.(𝑐) =
𝐻(1 + 𝐾𝑐)#
. 𝑓..(𝑐) < 0. 𝜆(𝑐) =1
σ(𝑐)=𝑑𝑧𝑑𝑡
𝑧 = 0𝑧 = 𝐿
DESORPTION (𝑐1 = 0), simple wave
𝑧 = 0𝑧 = 𝐿
ADSORPTION (𝑐1 = 0)
𝑧 = 0𝑧 = 𝐿
Mean of the slopes (through integration)1.Red line splits triangle in two equal parts2.
Conservation law in finite form9𝑀(𝑡 + Δ𝑡) − 𝑀(𝑡):Δ𝑧 = 9𝐹(𝑧) − 𝐹(𝑧 + Δ𝑧):Δ𝑡
N9𝜖𝑐(𝑡 + Δ𝑡) + (1 − 𝜖)𝑛(𝑡 + Δ𝑡): − 9𝜖𝑐(𝑡) + (1 − 𝜖)𝑛(𝑡):O Δ𝑧 = 9𝑢𝑐(𝑧) − 𝑢𝑐(𝑧 + Δ𝑧):Δ𝑡 = 𝑢Δ𝑡(𝑐+ − 𝑐1)= 9(𝜖𝑐+ + (1 − 𝜖)𝑛+) − (𝜖𝑐1 + (1 − 𝜖)𝑛1):Δ𝑧
Δ𝑡Δ𝑧
= 𝜎P(𝑐1, 𝑐+) =1 + 𝜈Δ𝑛Δ𝑐
𝑉=1𝑉Q1 + 𝜈
[𝑓][𝑐]R 𝜎(𝑐) =
1𝑉(1 + 𝜈
𝑑𝑓𝑑𝑐)
[𝑓][𝑐]
=1
𝑐+ − 𝑐1Q
𝐻𝑐+1 + 𝐾𝑐+
−𝐻𝑐1
(1 + 𝐾𝑐1)R =
𝐻(1 + 𝐾𝑐+)(1 + 𝐾𝑐1)
𝑑𝑓𝑑𝑐
=𝐻
(1 + 𝐾𝑐)#
1. Langmuir isotherm, anti-Langmuir, BET 28-29, 322. Chromatographic cycle 29-303. Pair of equations (32-38)4. Sedimentation 38-39 5. Constant pattern/shock layer 30-32 (19.05)
Residue Curve Maps applied to batch distillation (26.05)
𝑐
𝑛
𝑓(𝑐) =𝐻𝑐
1 − 𝐾𝑐
𝑓(𝑐) = 𝑎𝑐 + 𝑏𝑐#
Adsorption: simple wave Desorption: shock
Adsorption:
𝑓1 − 𝑓2𝑐1 − 𝑐2
= 𝑓′(𝑐2)
BET isotherm
𝑡+ = 𝜎(𝑐+)𝐿.𝑡1 = 𝜎(𝑐1)𝐿𝑡(𝑐) = 𝜎(𝑐)𝐿. 𝑐(𝑡). 𝑡+ ≤ 𝑡 ≤ 𝑡1𝑉𝑡𝐿= 1 + 𝜈
𝐻(1 + 𝐾𝑐)2
. (1 + 𝐾𝑐)2 =𝜈𝐻
𝑉𝑡𝐿 − 1
𝑡3: pulse
𝑡2 =𝐿𝑉Q1 +
𝜈𝐻1 + 𝐾𝑐+
R
Breakthroughtimedependson𝑐4556 = 𝑐+
𝑡7 = 𝑡3 +𝐿𝑉(1 + 𝜈𝐻)
Regenerationtimedoesnotdependon𝑐4556
𝑡3: pulse
𝑡7 = 𝑡3 +𝐿𝑉(1 + 𝜈𝐻)
Regenerationtimedoesnotdependon𝑐4556
𝑡8 =function(𝑐8)
𝑢𝐴𝑐9𝑡3 = 𝑢𝐴h 𝑐(𝑡)𝑑𝑡 =:
7
𝑢𝐴𝐿𝜈𝑉
h 𝑐𝑓..(𝑐)𝑑𝑐 =⬚
7
,"
=𝑢𝐴𝐿𝜈𝑉
[𝑐𝑓. − 𝑓],"7 =
𝑢𝐴𝐿𝜈𝑉
9𝑓(𝑐8) − 𝑐8𝑓.(𝑐8):Singleimplicitequationin𝑐8
𝑡(𝑐) = 𝜎(𝑐)𝐿
𝑑𝑡 = 𝐿𝑑𝜎 =𝐿𝑑𝜎𝑑𝑐 𝑑𝑐 =
𝐿𝑉 𝜈𝑓
..(𝑐)𝑑𝑐
𝐾𝑐8 =𝛽
1 − 𝛽. 𝛽 = √
𝑐9𝑡3𝑉𝐾𝐿𝜈𝐻
Equilibrium chromatography (isothermal adsorption)Tuesday, 5 May 2020 13:01
Flow rate: 𝑄[!!
" ]; cross section: 𝐴[m#]; void fraction: 𝜖(fluid volume/column volume);
superficial velocity: 𝑢 = $% *
!" +; interstitial velocity: 𝑉 = &
' ; phase ratio: 𝜈 = ()''
Fluid phase concentration of the solute : 𝑐[mol/m*];adsorbed phase concentration: 𝑛[mol/m*]
Phase equilibrium, adsorption isotherm: 𝑛 = 𝑓(𝑐) = +,1+-,: Langmuiradsorption isotherm
Assumptions: isothermal; flux is due only to convection (no diffusion); equilibrium between fluid and solid; solute dissolved in a solvent, which is inert; superficial velocity is constant.
𝐹(𝑐) = 𝑢𝑐𝑀(𝑐) = 𝜖𝑐 + (1 − 𝜖)𝑛
9𝜖 + (1 − 𝜖)𝑓.(𝑐):𝑐/ + 𝑢𝑐0 = 0𝑐 = 𝑐(𝑡, 𝑧)
𝑚𝑜𝑙𝑚#
𝑚#
𝑔𝑔𝑚* =
𝑚𝑜𝑙𝑚*
𝑐1. 𝑐+𝑐
𝑛
𝜎(𝑐) =9𝜖 + (1 − 𝜖)𝑓.(𝑐):
𝑢 =1 + 𝜈𝑓.(𝑐)
𝑉 .𝜎.(𝑐) =𝜈𝑓′′(𝑐)𝑉 < 0
𝑓(𝑐) =𝐻𝑐
1 + 𝐾𝑐.𝑓.(𝑐) =
𝐻(1 + 𝐾𝑐)#
. 𝑓..(𝑐) < 0. 𝜆(𝑐) =1
σ(𝑐)=𝑑𝑧𝑑𝑡
𝑧 = 0𝑧 = 𝐿
DESORPTION (𝑐1 = 0), simple wave
𝑧 = 0𝑧 = 𝐿
ADSORPTION (𝑐1 = 0)
𝑧 = 0𝑧 = 𝐿
Mean of the slopes (through integration)1.Red line splits triangle in two equal parts2.
Conservation law in finite form9𝑀(𝑡 + Δ𝑡) − 𝑀(𝑡):Δ𝑧 = 9𝐹(𝑧) − 𝐹(𝑧 + Δ𝑧):Δ𝑡
N9𝜖𝑐(𝑡 + Δ𝑡) + (1 − 𝜖)𝑛(𝑡 + Δ𝑡): − 9𝜖𝑐(𝑡) + (1 − 𝜖)𝑛(𝑡):O Δ𝑧 = 9𝑢𝑐(𝑧) − 𝑢𝑐(𝑧 + Δ𝑧):Δ𝑡 = 𝑢Δ𝑡(𝑐+ − 𝑐1)= 9(𝜖𝑐+ + (1 − 𝜖)𝑛+) − (𝜖𝑐1 + (1 − 𝜖)𝑛1):Δ𝑧
Δ𝑡Δ𝑧
= 𝜎P(𝑐1, 𝑐+) =1 + 𝜈Δ𝑛Δ𝑐
𝑉=1𝑉Q1 + 𝜈
[𝑓][𝑐]R 𝜎(𝑐) =
1𝑉(1 + 𝜈
𝑑𝑓𝑑𝑐)
[𝑓][𝑐]
=1
𝑐+ − 𝑐1Q
𝐻𝑐+1 + 𝐾𝑐+
−𝐻𝑐1
(1 + 𝐾𝑐1)R =
𝐻(1 + 𝐾𝑐+)(1 + 𝐾𝑐1)
𝑑𝑓𝑑𝑐
=𝐻
(1 + 𝐾𝑐)#
1. Langmuir isotherm, anti-Langmuir, BET 28-29, 322. Chromatographic cycle 29-303. Pair of equations (32-38)4. Sedimentation 38-39 5. Constant pattern/shock layer 30-32 (19.05)
Residue Curve Maps applied to batch distillation (26.05)
𝑐
𝑛
𝑓(𝑐) =𝐻𝑐
1 − 𝐾𝑐
𝑓(𝑐) = 𝑎𝑐 + 𝑏𝑐#
Adsorption: simple wave Desorption: shock
Adsorption:
𝑓1 − 𝑓2𝑐1 − 𝑐2
= 𝑓′(𝑐2)
BET isotherm
𝑡+ = 𝜎(𝑐+)𝐿.𝑡1 = 𝜎(𝑐1)𝐿𝑡(𝑐) = 𝜎(𝑐)𝐿. 𝑐(𝑡). 𝑡+ ≤ 𝑡 ≤ 𝑡1𝑉𝑡𝐿= 1 + 𝜈
𝐻(1 + 𝐾𝑐)2
. (1 + 𝐾𝑐)2 =𝜈𝐻
𝑉𝑡𝐿 − 1
𝑡3: pulse
𝑡2 =𝐿𝑉Q1 +
𝜈𝐻1 + 𝐾𝑐+
R
Breakthroughtimedependson𝑐4556 = 𝑐+
𝑡7 = 𝑡3 +𝐿𝑉(1 + 𝜈𝐻)
Regenerationtimedoesnotdependon𝑐4556
𝑡3: pulse
𝑡7 = 𝑡3 +𝐿𝑉(1 + 𝜈𝐻)
Regenerationtimedoesnotdependon𝑐4556
𝑡8 =function(𝑐8)
𝑢𝐴𝑐9𝑡3 = 𝑢𝐴h 𝑐(𝑡)𝑑𝑡 =:
7
𝑢𝐴𝐿𝜈𝑉
h 𝑐𝑓..(𝑐)𝑑𝑐 =⬚
7
,"
=𝑢𝐴𝐿𝜈𝑉
[𝑐𝑓. − 𝑓],"7 =
𝑢𝐴𝐿𝜈𝑉
9𝑓(𝑐8) − 𝑐8𝑓.(𝑐8):Singleimplicitequationin𝑐8
𝑡(𝑐) = 𝜎(𝑐)𝐿
𝑑𝑡 = 𝐿𝑑𝜎 =𝐿𝑑𝜎𝑑𝑐 𝑑𝑐 =
𝐿𝑉 𝜈𝑓
..(𝑐)𝑑𝑐
𝐾𝑐8 =𝛽
1 − 𝛽. 𝛽 = √
𝑐9𝑡3𝑉𝐾𝐿𝜈𝐻
Equilibrium chromatography (isothermal adsorption)Tuesday, 5 May 2020 13:01
Flow rate: 𝑄[!!
" ]; cross section: 𝐴[m#]; void fraction: 𝜖(fluid volume/column volume);
superficial velocity: 𝑢 = $% *
!" +; interstitial velocity: 𝑉 = &
' ; phase ratio: 𝜈 = ()''
Fluid phase concentration of the solute : 𝑐[mol/m*];adsorbed phase concentration: 𝑛[mol/m*]
Phase equilibrium, adsorption isotherm: 𝑛 = 𝑓(𝑐) = +,1+-,: Langmuiradsorption isotherm
Assumptions: isothermal; flux is due only to convection (no diffusion); equilibrium between fluid and solid; solute dissolved in a solvent, which is inert; superficial velocity is constant.
𝐹(𝑐) = 𝑢𝑐𝑀(𝑐) = 𝜖𝑐 + (1 − 𝜖)𝑛
9𝜖 + (1 − 𝜖)𝑓.(𝑐):𝑐/ + 𝑢𝑐0 = 0𝑐 = 𝑐(𝑡, 𝑧)
𝑚𝑜𝑙𝑚#
𝑚#
𝑔𝑔𝑚* =
𝑚𝑜𝑙𝑚*
𝑐1. 𝑐+𝑐
𝑛
𝜎(𝑐) =9𝜖 + (1 − 𝜖)𝑓.(𝑐):
𝑢 =1 + 𝜈𝑓.(𝑐)
𝑉 .𝜎.(𝑐) =𝜈𝑓′′(𝑐)𝑉 < 0
𝑓(𝑐) =𝐻𝑐
1 + 𝐾𝑐.𝑓.(𝑐) =
𝐻(1 + 𝐾𝑐)#
. 𝑓..(𝑐) < 0. 𝜆(𝑐) =1
σ(𝑐)=𝑑𝑧𝑑𝑡
𝑧 = 0𝑧 = 𝐿
DESORPTION (𝑐1 = 0), simple wave
𝑧 = 0𝑧 = 𝐿
ADSORPTION (𝑐1 = 0)
𝑧 = 0𝑧 = 𝐿
Mean of the slopes (through integration)1.Red line splits triangle in two equal parts2.
Conservation law in finite form9𝑀(𝑡 + Δ𝑡) − 𝑀(𝑡):Δ𝑧 = 9𝐹(𝑧) − 𝐹(𝑧 + Δ𝑧):Δ𝑡
N9𝜖𝑐(𝑡 + Δ𝑡) + (1 − 𝜖)𝑛(𝑡 + Δ𝑡): − 9𝜖𝑐(𝑡) + (1 − 𝜖)𝑛(𝑡):O Δ𝑧 = 9𝑢𝑐(𝑧) − 𝑢𝑐(𝑧 + Δ𝑧):Δ𝑡 = 𝑢Δ𝑡(𝑐+ − 𝑐1)= 9(𝜖𝑐+ + (1 − 𝜖)𝑛+) − (𝜖𝑐1 + (1 − 𝜖)𝑛1):Δ𝑧
Δ𝑡Δ𝑧
= 𝜎P(𝑐1, 𝑐+) =1 + 𝜈Δ𝑛Δ𝑐
𝑉=1𝑉Q1 + 𝜈
[𝑓][𝑐]R 𝜎(𝑐) =
1𝑉(1 + 𝜈
𝑑𝑓𝑑𝑐)
[𝑓][𝑐]
=1
𝑐+ − 𝑐1Q
𝐻𝑐+1 + 𝐾𝑐+
−𝐻𝑐1
(1 + 𝐾𝑐1)R =
𝐻(1 + 𝐾𝑐+)(1 + 𝐾𝑐1)
𝑑𝑓𝑑𝑐
=𝐻
(1 + 𝐾𝑐)#
1. Langmuir isotherm, anti-Langmuir, BET 28-29, 322. Chromatographic cycle 29-303. Pair of equations (32-38)4. Sedimentation 38-39 5. Constant pattern/shock layer 30-32 (19.05)
Residue Curve Maps applied to batch distillation (26.05)
𝑐
𝑛
𝑓(𝑐) =𝐻𝑐
1 − 𝐾𝑐
𝑓(𝑐) = 𝑎𝑐 + 𝑏𝑐#
Adsorption: simple wave Desorption: shock
Adsorption:
𝑓1 − 𝑓2𝑐1 − 𝑐2
= 𝑓′(𝑐2)
BET isotherm
𝑡+ = 𝜎(𝑐+)𝐿.𝑡1 = 𝜎(𝑐1)𝐿𝑡(𝑐) = 𝜎(𝑐)𝐿. 𝑐(𝑡). 𝑡+ ≤ 𝑡 ≤ 𝑡1𝑉𝑡𝐿= 1 + 𝜈
𝐻(1 + 𝐾𝑐)2
. (1 + 𝐾𝑐)2 =𝜈𝐻
𝑉𝑡𝐿 − 1
𝑡3: pulse
𝑡2 =𝐿𝑉Q1 +
𝜈𝐻1 + 𝐾𝑐+
R
Breakthroughtimedependson𝑐4556 = 𝑐+
𝑡7 = 𝑡3 +𝐿𝑉(1 + 𝜈𝐻)
Regenerationtimedoesnotdependon𝑐4556
𝑡3: pulse
𝑡7 = 𝑡3 +𝐿𝑉(1 + 𝜈𝐻)
Regenerationtimedoesnotdependon𝑐4556
𝑡8 =function(𝑐8)
𝑢𝐴𝑐9𝑡3 = 𝑢𝐴h 𝑐(𝑡)𝑑𝑡 =:
7
𝑢𝐴𝐿𝜈𝑉
h 𝑐𝑓..(𝑐)𝑑𝑐 =⬚
7
,"
=𝑢𝐴𝐿𝜈𝑉
[𝑐𝑓. − 𝑓],"7 =
𝑢𝐴𝐿𝜈𝑉
9𝑓(𝑐8) − 𝑐8𝑓.(𝑐8):Singleimplicitequationin𝑐8
𝑡(𝑐) = 𝜎(𝑐)𝐿
𝑑𝑡 = 𝐿𝑑𝜎 =𝐿𝑑𝜎𝑑𝑐 𝑑𝑐 =
𝐿𝑉 𝜈𝑓
..(𝑐)𝑑𝑐
𝐾𝑐8 =𝛽
1 − 𝛽. 𝛽 = √
𝑐9𝑡3𝑉𝐾𝐿𝜈𝐻
Equilibrium chromatography (isothermal adsorption)Tuesday, 5 May 2020 13:01
Flow rate: 𝑄[!!
" ]; cross section: 𝐴[m#]; void fraction: 𝜖(fluid volume/column volume);
superficial velocity: 𝑢 = $% *
!" +; interstitial velocity: 𝑉 = &
' ; phase ratio: 𝜈 = ()''
Fluid phase concentration of the solute : 𝑐[mol/m*];adsorbed phase concentration: 𝑛[mol/m*]
Phase equilibrium, adsorption isotherm: 𝑛 = 𝑓(𝑐) = +,1+-,: Langmuiradsorption isotherm
Assumptions: isothermal; flux is due only to convection (no diffusion); equilibrium between fluid and solid; solute dissolved in a solvent, which is inert; superficial velocity is constant.
𝐹(𝑐) = 𝑢𝑐𝑀(𝑐) = 𝜖𝑐 + (1 − 𝜖)𝑛
9𝜖 + (1 − 𝜖)𝑓.(𝑐):𝑐/ + 𝑢𝑐0 = 0𝑐 = 𝑐(𝑡, 𝑧)
𝑚𝑜𝑙𝑚#
𝑚#
𝑔𝑔𝑚* =
𝑚𝑜𝑙𝑚*
𝑐1. 𝑐+𝑐
𝑛
𝜎(𝑐) =9𝜖 + (1 − 𝜖)𝑓.(𝑐):
𝑢 =1 + 𝜈𝑓.(𝑐)
𝑉 .𝜎.(𝑐) =𝜈𝑓′′(𝑐)𝑉 < 0
𝑓(𝑐) =𝐻𝑐
1 + 𝐾𝑐.𝑓.(𝑐) =
𝐻(1 + 𝐾𝑐)#
. 𝑓..(𝑐) < 0. 𝜆(𝑐) =1
σ(𝑐)=𝑑𝑧𝑑𝑡
𝑧 = 0𝑧 = 𝐿
DESORPTION (𝑐1 = 0), simple wave
𝑧 = 0𝑧 = 𝐿
ADSORPTION (𝑐1 = 0)
𝑧 = 0𝑧 = 𝐿
Mean of the slopes (through integration)1.Red line splits triangle in two equal parts2.
Conservation law in finite form9𝑀(𝑡 + Δ𝑡) − 𝑀(𝑡):Δ𝑧 = 9𝐹(𝑧) − 𝐹(𝑧 + Δ𝑧):Δ𝑡
N9𝜖𝑐(𝑡 + Δ𝑡) + (1 − 𝜖)𝑛(𝑡 + Δ𝑡): − 9𝜖𝑐(𝑡) + (1 − 𝜖)𝑛(𝑡):O Δ𝑧 = 9𝑢𝑐(𝑧) − 𝑢𝑐(𝑧 + Δ𝑧):Δ𝑡 = 𝑢Δ𝑡(𝑐+ − 𝑐1)= 9(𝜖𝑐+ + (1 − 𝜖)𝑛+) − (𝜖𝑐1 + (1 − 𝜖)𝑛1):Δ𝑧
Δ𝑡Δ𝑧
= 𝜎P(𝑐1, 𝑐+) =1 + 𝜈Δ𝑛Δ𝑐
𝑉=1𝑉Q1 + 𝜈
[𝑓][𝑐]R 𝜎(𝑐) =
1𝑉(1 + 𝜈
𝑑𝑓𝑑𝑐)
[𝑓][𝑐]
=1
𝑐+ − 𝑐1Q
𝐻𝑐+1 + 𝐾𝑐+
−𝐻𝑐1
(1 + 𝐾𝑐1)R =
𝐻(1 + 𝐾𝑐+)(1 + 𝐾𝑐1)
𝑑𝑓𝑑𝑐
=𝐻
(1 + 𝐾𝑐)#
1. Langmuir isotherm, anti-Langmuir, BET 28-29, 322. Chromatographic cycle 29-303. Pair of equations (32-38)4. Sedimentation 38-39 5. Constant pattern/shock layer 30-32 (19.05)
Residue Curve Maps applied to batch distillation (26.05)
𝑐
𝑛
𝑓(𝑐) =𝐻𝑐
1 − 𝐾𝑐
𝑓(𝑐) = 𝑎𝑐 + 𝑏𝑐#
Adsorption: simple wave Desorption: shock
Adsorption:
𝑓1 − 𝑓2𝑐1 − 𝑐2
= 𝑓′(𝑐2)
BET isotherm
𝑡+ = 𝜎(𝑐+)𝐿.𝑡1 = 𝜎(𝑐1)𝐿𝑡(𝑐) = 𝜎(𝑐)𝐿. 𝑐(𝑡). 𝑡+ ≤ 𝑡 ≤ 𝑡1𝑉𝑡𝐿= 1 + 𝜈
𝐻(1 + 𝐾𝑐)2
. (1 + 𝐾𝑐)2 =𝜈𝐻
𝑉𝑡𝐿 − 1
𝑡3: pulse
𝑡2 =𝐿𝑉Q1 +
𝜈𝐻1 + 𝐾𝑐+
R
Breakthroughtimedependson𝑐4556 = 𝑐+
𝑡7 = 𝑡3 +𝐿𝑉(1 + 𝜈𝐻)
Regenerationtimedoesnotdependon𝑐4556
𝑡3: pulse
𝑡7 = 𝑡3 +𝐿𝑉(1 + 𝜈𝐻)
Regenerationtimedoesnotdependon𝑐4556
𝑡8 =function(𝑐8)
𝑢𝐴𝑐9𝑡3 = 𝑢𝐴h 𝑐(𝑡)𝑑𝑡 =:
7
𝑢𝐴𝐿𝜈𝑉
h 𝑐𝑓..(𝑐)𝑑𝑐 =⬚
7
,"
=𝑢𝐴𝐿𝜈𝑉
[𝑐𝑓. − 𝑓],"7 =
𝑢𝐴𝐿𝜈𝑉
9𝑓(𝑐8) − 𝑐8𝑓.(𝑐8):Singleimplicitequationin𝑐8
𝑡(𝑐) = 𝜎(𝑐)𝐿
𝑑𝑡 = 𝐿𝑑𝜎 =𝐿𝑑𝜎𝑑𝑐 𝑑𝑐 =
𝐿𝑉 𝜈𝑓
..(𝑐)𝑑𝑐
𝐾𝑐8 =𝛽
1 − 𝛽. 𝛽 = √
𝑐9𝑡3𝑉𝐾𝐿𝜈𝐻
Equilibrium chromatography (isothermal adsorption)Tuesday, 5 May 2020 13:01
Flow rate: 𝑄[!!
" ]; cross section: 𝐴[m#]; void fraction: 𝜖(fluid volume/column volume);
superficial velocity: 𝑢 = $% *
!" +; interstitial velocity: 𝑉 = &
' ; phase ratio: 𝜈 = ()''
Fluid phase concentration of the solute : 𝑐[mol/m*];adsorbed phase concentration: 𝑛[mol/m*]
Phase equilibrium, adsorption isotherm: 𝑛 = 𝑓(𝑐) = +,1+-,: Langmuiradsorption isotherm
Assumptions: isothermal; flux is due only to convection (no diffusion); equilibrium between fluid and solid; solute dissolved in a solvent, which is inert; superficial velocity is constant.
𝐹(𝑐) = 𝑢𝑐𝑀(𝑐) = 𝜖𝑐 + (1 − 𝜖)𝑛
9𝜖 + (1 − 𝜖)𝑓.(𝑐):𝑐/ + 𝑢𝑐0 = 0𝑐 = 𝑐(𝑡, 𝑧)
𝑚𝑜𝑙𝑚#
𝑚#
𝑔𝑔𝑚* =
𝑚𝑜𝑙𝑚*
𝑐1. 𝑐+𝑐
𝑛
𝜎(𝑐) =9𝜖 + (1 − 𝜖)𝑓.(𝑐):
𝑢 =1 + 𝜈𝑓.(𝑐)
𝑉 .𝜎.(𝑐) =𝜈𝑓′′(𝑐)𝑉 < 0
𝑓(𝑐) =𝐻𝑐
1 + 𝐾𝑐.𝑓.(𝑐) =
𝐻(1 + 𝐾𝑐)#
. 𝑓..(𝑐) < 0. 𝜆(𝑐) =1
σ(𝑐)=𝑑𝑧𝑑𝑡
𝑧 = 0𝑧 = 𝐿
DESORPTION (𝑐1 = 0), simple wave
𝑧 = 0𝑧 = 𝐿
ADSORPTION (𝑐1 = 0)
𝑧 = 0𝑧 = 𝐿
Mean of the slopes (through integration)1.Red line splits triangle in two equal parts2.
Conservation law in finite form9𝑀(𝑡 + Δ𝑡) − 𝑀(𝑡):Δ𝑧 = 9𝐹(𝑧) − 𝐹(𝑧 + Δ𝑧):Δ𝑡
N9𝜖𝑐(𝑡 + Δ𝑡) + (1 − 𝜖)𝑛(𝑡 + Δ𝑡): − 9𝜖𝑐(𝑡) + (1 − 𝜖)𝑛(𝑡):O Δ𝑧 = 9𝑢𝑐(𝑧) − 𝑢𝑐(𝑧 + Δ𝑧):Δ𝑡 = 𝑢Δ𝑡(𝑐+ − 𝑐1)= 9(𝜖𝑐+ + (1 − 𝜖)𝑛+) − (𝜖𝑐1 + (1 − 𝜖)𝑛1):Δ𝑧
Δ𝑡Δ𝑧
= 𝜎P(𝑐1, 𝑐+) =1 + 𝜈Δ𝑛Δ𝑐
𝑉=1𝑉Q1 + 𝜈
[𝑓][𝑐]R 𝜎(𝑐) =
1𝑉(1 + 𝜈
𝑑𝑓𝑑𝑐)
[𝑓][𝑐]
=1
𝑐+ − 𝑐1Q
𝐻𝑐+1 + 𝐾𝑐+
−𝐻𝑐1
(1 + 𝐾𝑐1)R =
𝐻(1 + 𝐾𝑐+)(1 + 𝐾𝑐1)
𝑑𝑓𝑑𝑐
=𝐻
(1 + 𝐾𝑐)#
1. Langmuir isotherm, anti-Langmuir, BET 28-29, 322. Chromatographic cycle 29-303. Pair of equations (32-38)4. Sedimentation 38-39 5. Constant pattern/shock layer 30-32 (19.05)
Residue Curve Maps applied to batch distillation (26.05)
𝑐
𝑛
𝑓(𝑐) =𝐻𝑐
1 − 𝐾𝑐
𝑓(𝑐) = 𝑎𝑐 + 𝑏𝑐#
Adsorption: simple wave Desorption: shock
Adsorption:
𝑓1 − 𝑓2𝑐1 − 𝑐2
= 𝑓′(𝑐2)
BET isotherm
𝑡+ = 𝜎(𝑐+)𝐿.𝑡1 = 𝜎(𝑐1)𝐿𝑡(𝑐) = 𝜎(𝑐)𝐿. 𝑐(𝑡). 𝑡+ ≤ 𝑡 ≤ 𝑡1𝑉𝑡𝐿= 1 + 𝜈
𝐻(1 + 𝐾𝑐)2
. (1 + 𝐾𝑐)2 =𝜈𝐻
𝑉𝑡𝐿 − 1
𝑡3: pulse
𝑡2 =𝐿𝑉Q1 +
𝜈𝐻1 + 𝐾𝑐+
R
Breakthroughtimedependson𝑐4556 = 𝑐+
𝑡7 = 𝑡3 +𝐿𝑉(1 + 𝜈𝐻)
Regenerationtimedoesnotdependon𝑐4556
𝑡3: pulse
𝑡7 = 𝑡3 +𝐿𝑉(1 + 𝜈𝐻)
Regenerationtimedoesnotdependon𝑐4556
𝑡8 =function(𝑐8)
𝑢𝐴𝑐9𝑡3 = 𝑢𝐴h 𝑐(𝑡)𝑑𝑡 =:
7
𝑢𝐴𝐿𝜈𝑉
h 𝑐𝑓..(𝑐)𝑑𝑐 =⬚
7
,"
=𝑢𝐴𝐿𝜈𝑉
[𝑐𝑓. − 𝑓],"7 =
𝑢𝐴𝐿𝜈𝑉
9𝑓(𝑐8) − 𝑐8𝑓.(𝑐8):Singleimplicitequationin𝑐8
𝑡(𝑐) = 𝜎(𝑐)𝐿
𝑑𝑡 = 𝐿𝑑𝜎 =𝐿𝑑𝜎𝑑𝑐 𝑑𝑐 =
𝐿𝑉 𝜈𝑓
..(𝑐)𝑑𝑐
𝐾𝑐8 =𝛽
1 − 𝛽. 𝛽 = √
𝑐9𝑡3𝑉𝐾𝐿𝜈𝐻
Equilibrium chromatography (isothermal adsorption)Tuesday, 5 May 2020 13:01
Flow rate: 𝑄[!!
" ]; cross section: 𝐴[m#]; void fraction: 𝜖(fluid volume/column volume);
superficial velocity: 𝑢 = $% *
!" +; interstitial velocity: 𝑉 = &
' ; phase ratio: 𝜈 = ()''
Fluid phase concentration of the solute : 𝑐[mol/m*];adsorbed phase concentration: 𝑛[mol/m*]
Phase equilibrium, adsorption isotherm: 𝑛 = 𝑓(𝑐) = +,1+-,: Langmuiradsorption isotherm
Assumptions: isothermal; flux is due only to convection (no diffusion); equilibrium between fluid and solid; solute dissolved in a solvent, which is inert; superficial velocity is constant.
𝐹(𝑐) = 𝑢𝑐𝑀(𝑐) = 𝜖𝑐 + (1 − 𝜖)𝑛
9𝜖 + (1 − 𝜖)𝑓.(𝑐):𝑐/ + 𝑢𝑐0 = 0𝑐 = 𝑐(𝑡, 𝑧)
𝑚𝑜𝑙𝑚#
𝑚#
𝑔𝑔𝑚* =
𝑚𝑜𝑙𝑚*
𝑐1. 𝑐+𝑐
𝑛
𝜎(𝑐) =9𝜖 + (1 − 𝜖)𝑓.(𝑐):
𝑢 =1 + 𝜈𝑓.(𝑐)
𝑉 .𝜎.(𝑐) =𝜈𝑓′′(𝑐)𝑉 < 0
𝑓(𝑐) =𝐻𝑐
1 + 𝐾𝑐.𝑓.(𝑐) =
𝐻(1 + 𝐾𝑐)#
. 𝑓..(𝑐) < 0. 𝜆(𝑐) =1
σ(𝑐)=𝑑𝑧𝑑𝑡
𝑧 = 0𝑧 = 𝐿
DESORPTION (𝑐1 = 0), simple wave
𝑧 = 0𝑧 = 𝐿
ADSORPTION (𝑐1 = 0)
𝑧 = 0𝑧 = 𝐿
Mean of the slopes (through integration)1.Red line splits triangle in two equal parts2.
Conservation law in finite form9𝑀(𝑡 + Δ𝑡) − 𝑀(𝑡):Δ𝑧 = 9𝐹(𝑧) − 𝐹(𝑧 + Δ𝑧):Δ𝑡
N9𝜖𝑐(𝑡 + Δ𝑡) + (1 − 𝜖)𝑛(𝑡 + Δ𝑡): − 9𝜖𝑐(𝑡) + (1 − 𝜖)𝑛(𝑡):O Δ𝑧 = 9𝑢𝑐(𝑧) − 𝑢𝑐(𝑧 + Δ𝑧):Δ𝑡 = 𝑢Δ𝑡(𝑐+ − 𝑐1)= 9(𝜖𝑐+ + (1 − 𝜖)𝑛+) − (𝜖𝑐1 + (1 − 𝜖)𝑛1):Δ𝑧
Δ𝑡Δ𝑧
= 𝜎P(𝑐1, 𝑐+) =1 + 𝜈Δ𝑛Δ𝑐
𝑉=1𝑉Q1 + 𝜈
[𝑓][𝑐]R 𝜎(𝑐) =
1𝑉(1 + 𝜈
𝑑𝑓𝑑𝑐)
[𝑓][𝑐]
=1
𝑐+ − 𝑐1Q
𝐻𝑐+1 + 𝐾𝑐+
−𝐻𝑐1
(1 + 𝐾𝑐1)R =
𝐻(1 + 𝐾𝑐+)(1 + 𝐾𝑐1)
𝑑𝑓𝑑𝑐
=𝐻
(1 + 𝐾𝑐)#
1. Langmuir isotherm, anti-Langmuir, BET 28-29, 322. Chromatographic cycle 29-303. Pair of equations (32-38)4. Sedimentation 38-39 5. Constant pattern/shock layer 30-32 (19.05)
Residue Curve Maps applied to batch distillation (26.05)
𝑐
𝑛
𝑓(𝑐) =𝐻𝑐
1 − 𝐾𝑐
𝑓(𝑐) = 𝑎𝑐 + 𝑏𝑐#
Adsorption: simple wave Desorption: shock
Adsorption:
𝑓1 − 𝑓2𝑐1 − 𝑐2
= 𝑓′(𝑐2)
BET isotherm
𝑡+ = 𝜎(𝑐+)𝐿.𝑡1 = 𝜎(𝑐1)𝐿𝑡(𝑐) = 𝜎(𝑐)𝐿. 𝑐(𝑡). 𝑡+ ≤ 𝑡 ≤ 𝑡1𝑉𝑡𝐿= 1 + 𝜈
𝐻(1 + 𝐾𝑐)2
. (1 + 𝐾𝑐)2 =𝜈𝐻
𝑉𝑡𝐿 − 1
𝑡3: pulse
𝑡2 =𝐿𝑉Q1 +
𝜈𝐻1 + 𝐾𝑐+
R
Breakthroughtimedependson𝑐4556 = 𝑐+
𝑡7 = 𝑡3 +𝐿𝑉(1 + 𝜈𝐻)
Regenerationtimedoesnotdependon𝑐4556
𝑡3: pulse
𝑡7 = 𝑡3 +𝐿𝑉(1 + 𝜈𝐻)
Regenerationtimedoesnotdependon𝑐4556
𝑡8 =function(𝑐8)
𝑢𝐴𝑐9𝑡3 = 𝑢𝐴h 𝑐(𝑡)𝑑𝑡 =:
7
𝑢𝐴𝐿𝜈𝑉
h 𝑐𝑓..(𝑐)𝑑𝑐 =⬚
7
,"
=𝑢𝐴𝐿𝜈𝑉
[𝑐𝑓. − 𝑓],"7 =
𝑢𝐴𝐿𝜈𝑉
9𝑓(𝑐8) − 𝑐8𝑓.(𝑐8):Singleimplicitequationin𝑐8
𝑡(𝑐) = 𝜎(𝑐)𝐿
𝑑𝑡 = 𝐿𝑑𝜎 =𝐿𝑑𝜎𝑑𝑐 𝑑𝑐 =
𝐿𝑉 𝜈𝑓
..(𝑐)𝑑𝑐
𝐾𝑐8 =𝛽
1 − 𝛽. 𝛽 = √
𝑐9𝑡3𝑉𝐾𝐿𝜈𝐻
Equilibrium chromatography (isothermal adsorption)Tuesday, 5 May 2020 13:01
Flow rate: 𝑄[!!
" ]; cross section: 𝐴[m#]; void fraction: 𝜖(fluid volume/column volume);
superficial velocity: 𝑢 = $% *
!" +; interstitial velocity: 𝑉 = &
' ; phase ratio: 𝜈 = ()''
Fluid phase concentration of the solute : 𝑐[mol/m*];adsorbed phase concentration: 𝑛[mol/m*]
Phase equilibrium, adsorption isotherm: 𝑛 = 𝑓(𝑐) = +,1+-,: Langmuiradsorption isotherm
Assumptions: isothermal; flux is due only to convection (no diffusion); equilibrium between fluid and solid; solute dissolved in a solvent, which is inert; superficial velocity is constant.
𝐹(𝑐) = 𝑢𝑐𝑀(𝑐) = 𝜖𝑐 + (1 − 𝜖)𝑛
9𝜖 + (1 − 𝜖)𝑓.(𝑐):𝑐/ + 𝑢𝑐0 = 0𝑐 = 𝑐(𝑡, 𝑧)
𝑚𝑜𝑙𝑚#
𝑚#
𝑔𝑔𝑚* =
𝑚𝑜𝑙𝑚*
𝑐1. 𝑐+𝑐
𝑛
𝜎(𝑐) =9𝜖 + (1 − 𝜖)𝑓.(𝑐):
𝑢 =1 + 𝜈𝑓.(𝑐)
𝑉 .𝜎.(𝑐) =𝜈𝑓′′(𝑐)𝑉 < 0
𝑓(𝑐) =𝐻𝑐
1 + 𝐾𝑐.𝑓.(𝑐) =
𝐻(1 + 𝐾𝑐)#
. 𝑓..(𝑐) < 0. 𝜆(𝑐) =1
σ(𝑐)=𝑑𝑧𝑑𝑡
𝑧 = 0𝑧 = 𝐿
DESORPTION (𝑐1 = 0), simple wave
𝑧 = 0𝑧 = 𝐿
ADSORPTION (𝑐1 = 0)
𝑧 = 0𝑧 = 𝐿
Mean of the slopes (through integration)1.Red line splits triangle in two equal parts2.
Conservation law in finite form9𝑀(𝑡 + Δ𝑡) − 𝑀(𝑡):Δ𝑧 = 9𝐹(𝑧) − 𝐹(𝑧 + Δ𝑧):Δ𝑡
N9𝜖𝑐(𝑡 + Δ𝑡) + (1 − 𝜖)𝑛(𝑡 + Δ𝑡): − 9𝜖𝑐(𝑡) + (1 − 𝜖)𝑛(𝑡):O Δ𝑧 = 9𝑢𝑐(𝑧) − 𝑢𝑐(𝑧 + Δ𝑧):Δ𝑡 = 𝑢Δ𝑡(𝑐+ − 𝑐1)= 9(𝜖𝑐+ + (1 − 𝜖)𝑛+) − (𝜖𝑐1 + (1 − 𝜖)𝑛1):Δ𝑧
Δ𝑡Δ𝑧
= 𝜎P(𝑐1, 𝑐+) =1 + 𝜈Δ𝑛Δ𝑐
𝑉=1𝑉Q1 + 𝜈
[𝑓][𝑐]R 𝜎(𝑐) =
1𝑉(1 + 𝜈
𝑑𝑓𝑑𝑐)
[𝑓][𝑐]
=1
𝑐+ − 𝑐1Q
𝐻𝑐+1 + 𝐾𝑐+
−𝐻𝑐1
(1 + 𝐾𝑐1)R =
𝐻(1 + 𝐾𝑐+)(1 + 𝐾𝑐1)
𝑑𝑓𝑑𝑐
=𝐻
(1 + 𝐾𝑐)#
1. Langmuir isotherm, anti-Langmuir, BET 28-29, 322. Chromatographic cycle 29-303. Pair of equations (32-38)4. Sedimentation 38-39 5. Constant pattern/shock layer 30-32 (19.05)
Residue Curve Maps applied to batch distillation (26.05)
𝑐
𝑛
𝑓(𝑐) =𝐻𝑐
1 − 𝐾𝑐
𝑓(𝑐) = 𝑎𝑐 + 𝑏𝑐#
Adsorption: simple wave Desorption: shock
Adsorption:
𝑓1 − 𝑓2𝑐1 − 𝑐2
= 𝑓′(𝑐2)
BET isotherm
𝑡+ = 𝜎(𝑐+)𝐿.𝑡1 = 𝜎(𝑐1)𝐿𝑡(𝑐) = 𝜎(𝑐)𝐿. 𝑐(𝑡). 𝑡+ ≤ 𝑡 ≤ 𝑡1𝑉𝑡𝐿= 1 + 𝜈
𝐻(1 + 𝐾𝑐)2
. (1 + 𝐾𝑐)2 =𝜈𝐻
𝑉𝑡𝐿 − 1
𝑡3: pulse
𝑡2 =𝐿𝑉Q1 +
𝜈𝐻1 + 𝐾𝑐+
R
Breakthroughtimedependson𝑐4556 = 𝑐+
𝑡7 = 𝑡3 +𝐿𝑉(1 + 𝜈𝐻)
Regenerationtimedoesnotdependon𝑐4556
𝑡3: pulse
𝑡7 = 𝑡3 +𝐿𝑉(1 + 𝜈𝐻)
Regenerationtimedoesnotdependon𝑐4556
𝑡8 =function(𝑐8)
𝑢𝐴𝑐9𝑡3 = 𝑢𝐴h 𝑐(𝑡)𝑑𝑡 =:
7
𝑢𝐴𝐿𝜈𝑉
h 𝑐𝑓..(𝑐)𝑑𝑐 =⬚
7
,"
=𝑢𝐴𝐿𝜈𝑉
[𝑐𝑓. − 𝑓],"7 =
𝑢𝐴𝐿𝜈𝑉
9𝑓(𝑐8) − 𝑐8𝑓.(𝑐8):Singleimplicitequationin𝑐8
𝑡(𝑐) = 𝜎(𝑐)𝐿
𝑑𝑡 = 𝐿𝑑𝜎 =𝐿𝑑𝜎𝑑𝑐 𝑑𝑐 =
𝐿𝑉 𝜈𝑓
..(𝑐)𝑑𝑐
𝐾𝑐8 =𝛽
1 − 𝛽. 𝛽 = √
𝑐9𝑡3𝑉𝐾𝐿𝜈𝐻
Equilibrium chromatography (isothermal adsorption)Tuesday, 5 May 2020 13:01
Flow rate: 𝑄[!!
" ]; cross section: 𝐴[m#]; void fraction: 𝜖(fluid volume/column volume);
superficial velocity: 𝑢 = $% *
!" +; interstitial velocity: 𝑉 = &
' ; phase ratio: 𝜈 = ()''
Fluid phase concentration of the solute : 𝑐[mol/m*];adsorbed phase concentration: 𝑛[mol/m*]
Phase equilibrium, adsorption isotherm: 𝑛 = 𝑓(𝑐) = +,1+-,: Langmuiradsorption isotherm
Assumptions: isothermal; flux is due only to convection (no diffusion); equilibrium between fluid and solid; solute dissolved in a solvent, which is inert; superficial velocity is constant.
𝐹(𝑐) = 𝑢𝑐𝑀(𝑐) = 𝜖𝑐 + (1 − 𝜖)𝑛
9𝜖 + (1 − 𝜖)𝑓.(𝑐):𝑐/ + 𝑢𝑐0 = 0𝑐 = 𝑐(𝑡, 𝑧)
𝑚𝑜𝑙𝑚#
𝑚#
𝑔𝑔𝑚* =
𝑚𝑜𝑙𝑚*
𝑐1. 𝑐+𝑐
𝑛
𝜎(𝑐) =9𝜖 + (1 − 𝜖)𝑓.(𝑐):
𝑢 =1 + 𝜈𝑓.(𝑐)
𝑉 .𝜎.(𝑐) =𝜈𝑓′′(𝑐)𝑉 < 0
𝑓(𝑐) =𝐻𝑐
1 + 𝐾𝑐.𝑓.(𝑐) =
𝐻(1 + 𝐾𝑐)#
. 𝑓..(𝑐) < 0. 𝜆(𝑐) =1
σ(𝑐)=𝑑𝑧𝑑𝑡
𝑧 = 0𝑧 = 𝐿
DESORPTION (𝑐1 = 0), simple wave
𝑧 = 0𝑧 = 𝐿
ADSORPTION (𝑐1 = 0)
𝑧 = 0𝑧 = 𝐿
Mean of the slopes (through integration)1.Red line splits triangle in two equal parts2.
Conservation law in finite form9𝑀(𝑡 + Δ𝑡) − 𝑀(𝑡):Δ𝑧 = 9𝐹(𝑧) − 𝐹(𝑧 + Δ𝑧):Δ𝑡
N9𝜖𝑐(𝑡 + Δ𝑡) + (1 − 𝜖)𝑛(𝑡 + Δ𝑡): − 9𝜖𝑐(𝑡) + (1 − 𝜖)𝑛(𝑡):O Δ𝑧 = 9𝑢𝑐(𝑧) − 𝑢𝑐(𝑧 + Δ𝑧):Δ𝑡 = 𝑢Δ𝑡(𝑐+ − 𝑐1)= 9(𝜖𝑐+ + (1 − 𝜖)𝑛+) − (𝜖𝑐1 + (1 − 𝜖)𝑛1):Δ𝑧
Δ𝑡Δ𝑧
= 𝜎P(𝑐1, 𝑐+) =1 + 𝜈Δ𝑛Δ𝑐
𝑉=1𝑉Q1 + 𝜈
[𝑓][𝑐]R 𝜎(𝑐) =
1𝑉(1 + 𝜈
𝑑𝑓𝑑𝑐)
[𝑓][𝑐]
=1
𝑐+ − 𝑐1Q
𝐻𝑐+1 + 𝐾𝑐+
−𝐻𝑐1
(1 + 𝐾𝑐1)R =
𝐻(1 + 𝐾𝑐+)(1 + 𝐾𝑐1)
𝑑𝑓𝑑𝑐
=𝐻
(1 + 𝐾𝑐)#
1. Langmuir isotherm, anti-Langmuir, BET 28-29, 322. Chromatographic cycle 29-303. Pair of equations (32-38)4. Sedimentation 38-39 5. Constant pattern/shock layer 30-32 (19.05)
Residue Curve Maps applied to batch distillation (26.05)
𝑐
𝑛
𝑓(𝑐) =𝐻𝑐
1 − 𝐾𝑐
𝑓(𝑐) = 𝑎𝑐 + 𝑏𝑐#
Adsorption: simple wave Desorption: shock
Adsorption:
𝑓1 − 𝑓2𝑐1 − 𝑐2
= 𝑓′(𝑐2)
BET isotherm
𝑡+ = 𝜎(𝑐+)𝐿.𝑡1 = 𝜎(𝑐1)𝐿𝑡(𝑐) = 𝜎(𝑐)𝐿. 𝑐(𝑡). 𝑡+ ≤ 𝑡 ≤ 𝑡1𝑉𝑡𝐿= 1 + 𝜈
𝐻(1 + 𝐾𝑐)2
. (1 + 𝐾𝑐)2 =𝜈𝐻
𝑉𝑡𝐿 − 1
𝑡3: pulse
𝑡2 =𝐿𝑉Q1 +
𝜈𝐻1 + 𝐾𝑐+
R
Breakthroughtimedependson𝑐4556 = 𝑐+
𝑡7 = 𝑡3 +𝐿𝑉(1 + 𝜈𝐻)
Regenerationtimedoesnotdependon𝑐4556
𝑡3: pulse
𝑡7 = 𝑡3 +𝐿𝑉(1 + 𝜈𝐻)
Regenerationtimedoesnotdependon𝑐4556
𝑡8 =function(𝑐8)
𝑢𝐴𝑐9𝑡3 = 𝑢𝐴h 𝑐(𝑡)𝑑𝑡 =:
7
𝑢𝐴𝐿𝜈𝑉
h 𝑐𝑓..(𝑐)𝑑𝑐 =⬚
7
,"
=𝑢𝐴𝐿𝜈𝑉
[𝑐𝑓. − 𝑓],"7 =
𝑢𝐴𝐿𝜈𝑉
9𝑓(𝑐8) − 𝑐8𝑓.(𝑐8):Singleimplicitequationin𝑐8
𝑡(𝑐) = 𝜎(𝑐)𝐿
𝑑𝑡 = 𝐿𝑑𝜎 =𝐿𝑑𝜎𝑑𝑐 𝑑𝑐 =
𝐿𝑉 𝜈𝑓
..(𝑐)𝑑𝑐
𝐾𝑐8 =𝛽
1 − 𝛽. 𝛽 = √
𝑐9𝑡3𝑉𝐾𝐿𝜈𝐻
Equilibrium chromatography (isothermal adsorption)Tuesday, 5 May 2020 13:01
Flow rate: 𝑄[!!
" ]; cross section: 𝐴[m#]; void fraction: 𝜖(fluid volume/column volume);
superficial velocity: 𝑢 = $% *
!" +; interstitial velocity: 𝑉 = &
' ; phase ratio: 𝜈 = ()''
Fluid phase concentration of the solute : 𝑐[mol/m*];adsorbed phase concentration: 𝑛[mol/m*]
Phase equilibrium, adsorption isotherm: 𝑛 = 𝑓(𝑐) = +,1+-,: Langmuiradsorption isotherm
Assumptions: isothermal; flux is due only to convection (no diffusion); equilibrium between fluid and solid; solute dissolved in a solvent, which is inert; superficial velocity is constant.
𝐹(𝑐) = 𝑢𝑐𝑀(𝑐) = 𝜖𝑐 + (1 − 𝜖)𝑛
9𝜖 + (1 − 𝜖)𝑓.(𝑐):𝑐/ + 𝑢𝑐0 = 0𝑐 = 𝑐(𝑡, 𝑧)
𝑚𝑜𝑙𝑚#
𝑚#
𝑔𝑔𝑚* =
𝑚𝑜𝑙𝑚*
𝑐1. 𝑐+𝑐
𝑛
𝜎(𝑐) =9𝜖 + (1 − 𝜖)𝑓.(𝑐):
𝑢 =1 + 𝜈𝑓.(𝑐)
𝑉 .𝜎.(𝑐) =𝜈𝑓′′(𝑐)𝑉 < 0
𝑓(𝑐) =𝐻𝑐
1 + 𝐾𝑐.𝑓.(𝑐) =
𝐻(1 + 𝐾𝑐)#
. 𝑓..(𝑐) < 0. 𝜆(𝑐) =1
σ(𝑐)=𝑑𝑧𝑑𝑡
𝑧 = 0𝑧 = 𝐿
DESORPTION (𝑐1 = 0), simple wave
𝑧 = 0𝑧 = 𝐿
ADSORPTION (𝑐1 = 0)
𝑧 = 0𝑧 = 𝐿
Mean of the slopes (through integration)1.Red line splits triangle in two equal parts2.
Conservation law in finite form9𝑀(𝑡 + Δ𝑡) − 𝑀(𝑡):Δ𝑧 = 9𝐹(𝑧) − 𝐹(𝑧 + Δ𝑧):Δ𝑡
N9𝜖𝑐(𝑡 + Δ𝑡) + (1 − 𝜖)𝑛(𝑡 + Δ𝑡): − 9𝜖𝑐(𝑡) + (1 − 𝜖)𝑛(𝑡):O Δ𝑧 = 9𝑢𝑐(𝑧) − 𝑢𝑐(𝑧 + Δ𝑧):Δ𝑡 = 𝑢Δ𝑡(𝑐+ − 𝑐1)= 9(𝜖𝑐+ + (1 − 𝜖)𝑛+) − (𝜖𝑐1 + (1 − 𝜖)𝑛1):Δ𝑧
Δ𝑡Δ𝑧
= 𝜎P(𝑐1, 𝑐+) =1 + 𝜈Δ𝑛Δ𝑐
𝑉=1𝑉Q1 + 𝜈
[𝑓][𝑐]R 𝜎(𝑐) =
1𝑉(1 + 𝜈
𝑑𝑓𝑑𝑐)
[𝑓][𝑐]
=1
𝑐+ − 𝑐1Q
𝐻𝑐+1 + 𝐾𝑐+
−𝐻𝑐1
(1 + 𝐾𝑐1)R =
𝐻(1 + 𝐾𝑐+)(1 + 𝐾𝑐1)
𝑑𝑓𝑑𝑐
=𝐻
(1 + 𝐾𝑐)#
1. Langmuir isotherm, anti-Langmuir, BET 28-29, 322. Chromatographic cycle 29-303. Pair of equations (32-38)4. Sedimentation 38-39 5. Constant pattern/shock layer 30-32 (19.05)
Residue Curve Maps applied to batch distillation (26.05)
𝑐
𝑛
𝑓(𝑐) =𝐻𝑐
1 − 𝐾𝑐
𝑓(𝑐) = 𝑎𝑐 + 𝑏𝑐#
Adsorption: simple wave Desorption: shock
Adsorption:
𝑓1 − 𝑓2𝑐1 − 𝑐2
= 𝑓′(𝑐2)
BET isotherm
𝑡+ = 𝜎(𝑐+)𝐿.𝑡1 = 𝜎(𝑐1)𝐿𝑡(𝑐) = 𝜎(𝑐)𝐿. 𝑐(𝑡). 𝑡+ ≤ 𝑡 ≤ 𝑡1𝑉𝑡𝐿= 1 + 𝜈
𝐻(1 + 𝐾𝑐)2
. (1 + 𝐾𝑐)2 =𝜈𝐻
𝑉𝑡𝐿 − 1
𝑡3: pulse
𝑡2 =𝐿𝑉Q1 +
𝜈𝐻1 + 𝐾𝑐+
R
Breakthroughtimedependson𝑐4556 = 𝑐+
𝑡7 = 𝑡3 +𝐿𝑉(1 + 𝜈𝐻)
Regenerationtimedoesnotdependon𝑐4556
𝑡3: pulse
𝑡7 = 𝑡3 +𝐿𝑉(1 + 𝜈𝐻)
Regenerationtimedoesnotdependon𝑐4556
𝑡8 =function(𝑐8)
𝑢𝐴𝑐9𝑡3 = 𝑢𝐴h 𝑐(𝑡)𝑑𝑡 =:
7
𝑢𝐴𝐿𝜈𝑉
h 𝑐𝑓..(𝑐)𝑑𝑐 =⬚
7
,"
=𝑢𝐴𝐿𝜈𝑉
[𝑐𝑓. − 𝑓],"7 =
𝑢𝐴𝐿𝜈𝑉
9𝑓(𝑐8) − 𝑐8𝑓.(𝑐8):Singleimplicitequationin𝑐8
𝑡(𝑐) = 𝜎(𝑐)𝐿
𝑑𝑡 = 𝐿𝑑𝜎 =𝐿𝑑𝜎𝑑𝑐 𝑑𝑐 =
𝐿𝑉 𝜈𝑓
..(𝑐)𝑑𝑐
𝐾𝑐8 =𝛽
1 − 𝛽. 𝛽 = √
𝑐9𝑡3𝑉𝐾𝐿𝜈𝐻
Equilibrium chromatography (isothermal adsorption)Tuesday, 5 May 2020 13:01
Flow rate: 𝑄[!!
" ]; cross section: 𝐴[m#]; void fraction: 𝜖(fluid volume/column volume);
superficial velocity: 𝑢 = $% *
!" +; interstitial velocity: 𝑉 = &
' ; phase ratio: 𝜈 = ()''
Fluid phase concentration of the solute : 𝑐[mol/m*];adsorbed phase concentration: 𝑛[mol/m*]
Phase equilibrium, adsorption isotherm: 𝑛 = 𝑓(𝑐) = +,1+-,: Langmuiradsorption isotherm
Assumptions: isothermal; flux is due only to convection (no diffusion); equilibrium between fluid and solid; solute dissolved in a solvent, which is inert; superficial velocity is constant.
𝐹(𝑐) = 𝑢𝑐𝑀(𝑐) = 𝜖𝑐 + (1 − 𝜖)𝑛
9𝜖 + (1 − 𝜖)𝑓.(𝑐):𝑐/ + 𝑢𝑐0 = 0𝑐 = 𝑐(𝑡, 𝑧)
𝑚𝑜𝑙𝑚#
𝑚#
𝑔𝑔𝑚* =
𝑚𝑜𝑙𝑚*
𝑐1. 𝑐+𝑐
𝑛
𝜎(𝑐) =9𝜖 + (1 − 𝜖)𝑓.(𝑐):
𝑢 =1 + 𝜈𝑓.(𝑐)
𝑉 .𝜎.(𝑐) =𝜈𝑓′′(𝑐)𝑉 < 0
𝑓(𝑐) =𝐻𝑐
1 + 𝐾𝑐.𝑓.(𝑐) =
𝐻(1 + 𝐾𝑐)#
. 𝑓..(𝑐) < 0. 𝜆(𝑐) =1
σ(𝑐)=𝑑𝑧𝑑𝑡
𝑧 = 0𝑧 = 𝐿
DESORPTION (𝑐1 = 0), simple wave
𝑧 = 0𝑧 = 𝐿
ADSORPTION (𝑐1 = 0)
𝑧 = 0𝑧 = 𝐿
Mean of the slopes (through integration)1.Red line splits triangle in two equal parts2.
Conservation law in finite form9𝑀(𝑡 + Δ𝑡) − 𝑀(𝑡):Δ𝑧 = 9𝐹(𝑧) − 𝐹(𝑧 + Δ𝑧):Δ𝑡
N9𝜖𝑐(𝑡 + Δ𝑡) + (1 − 𝜖)𝑛(𝑡 + Δ𝑡): − 9𝜖𝑐(𝑡) + (1 − 𝜖)𝑛(𝑡):O Δ𝑧 = 9𝑢𝑐(𝑧) − 𝑢𝑐(𝑧 + Δ𝑧):Δ𝑡 = 𝑢Δ𝑡(𝑐+ − 𝑐1)= 9(𝜖𝑐+ + (1 − 𝜖)𝑛+) − (𝜖𝑐1 + (1 − 𝜖)𝑛1):Δ𝑧
Δ𝑡Δ𝑧
= 𝜎P(𝑐1, 𝑐+) =1 + 𝜈Δ𝑛Δ𝑐
𝑉=1𝑉Q1 + 𝜈
[𝑓][𝑐]R 𝜎(𝑐) =
1𝑉(1 + 𝜈
𝑑𝑓𝑑𝑐)
[𝑓][𝑐]
=1
𝑐+ − 𝑐1Q
𝐻𝑐+1 + 𝐾𝑐+
−𝐻𝑐1
(1 + 𝐾𝑐1)R =
𝐻(1 + 𝐾𝑐+)(1 + 𝐾𝑐1)
𝑑𝑓𝑑𝑐
=𝐻
(1 + 𝐾𝑐)#
1. Langmuir isotherm, anti-Langmuir, BET 28-29, 322. Chromatographic cycle 29-303. Pair of equations (32-38)4. Sedimentation 38-39 5. Constant pattern/shock layer 30-32 (19.05)
Residue Curve Maps applied to batch distillation (26.05)
𝑐
𝑛
𝑓(𝑐) =𝐻𝑐
1 − 𝐾𝑐
𝑓(𝑐) = 𝑎𝑐 + 𝑏𝑐#
Adsorption: simple wave Desorption: shock
Adsorption:
𝑓1 − 𝑓2𝑐1 − 𝑐2
= 𝑓′(𝑐2)
BET isotherm
𝑡+ = 𝜎(𝑐+)𝐿.𝑡1 = 𝜎(𝑐1)𝐿𝑡(𝑐) = 𝜎(𝑐)𝐿. 𝑐(𝑡). 𝑡+ ≤ 𝑡 ≤ 𝑡1𝑉𝑡𝐿= 1 + 𝜈
𝐻(1 + 𝐾𝑐)2
. (1 + 𝐾𝑐)2 =𝜈𝐻
𝑉𝑡𝐿 − 1
𝑡3: pulse
𝑡2 =𝐿𝑉Q1 +
𝜈𝐻1 + 𝐾𝑐+
R
Breakthroughtimedependson𝑐4556 = 𝑐+
𝑡7 = 𝑡3 +𝐿𝑉(1 + 𝜈𝐻)
Regenerationtimedoesnotdependon𝑐4556
𝑡3: pulse
𝑡7 = 𝑡3 +𝐿𝑉(1 + 𝜈𝐻)
Regenerationtimedoesnotdependon𝑐4556
𝑡8 =function(𝑐8)
𝑢𝐴𝑐9𝑡3 = 𝑢𝐴h 𝑐(𝑡)𝑑𝑡 =:
7
𝑢𝐴𝐿𝜈𝑉
h 𝑐𝑓..(𝑐)𝑑𝑐 =⬚
7
,"
=𝑢𝐴𝐿𝜈𝑉
[𝑐𝑓. − 𝑓],"7 =
𝑢𝐴𝐿𝜈𝑉
9𝑓(𝑐8) − 𝑐8𝑓.(𝑐8):Singleimplicitequationin𝑐8
𝑡(𝑐) = 𝜎(𝑐)𝐿
𝑑𝑡 = 𝐿𝑑𝜎 =𝐿𝑑𝜎𝑑𝑐 𝑑𝑐 =
𝐿𝑉 𝜈𝑓
..(𝑐)𝑑𝑐
𝐾𝑐8 =𝛽
1 − 𝛽. 𝛽 = √
𝑐9𝑡3𝑉𝐾𝐿𝜈𝐻
Equilibrium chromatography (isothermal adsorption)Tuesday, 5 May 2020 13:01
Flow rate: 𝑄[!!
" ]; cross section: 𝐴[m#]; void fraction: 𝜖(fluid volume/column volume);
superficial velocity: 𝑢 = $% *
!" +; interstitial velocity: 𝑉 = &
' ; phase ratio: 𝜈 = ()''
Fluid phase concentration of the solute : 𝑐[mol/m*];adsorbed phase concentration: 𝑛[mol/m*]
Phase equilibrium, adsorption isotherm: 𝑛 = 𝑓(𝑐) = +,1+-,: Langmuiradsorption isotherm
Assumptions: isothermal; flux is due only to convection (no diffusion); equilibrium between fluid and solid; solute dissolved in a solvent, which is inert; superficial velocity is constant.
𝐹(𝑐) = 𝑢𝑐𝑀(𝑐) = 𝜖𝑐 + (1 − 𝜖)𝑛
9𝜖 + (1 − 𝜖)𝑓.(𝑐):𝑐/ + 𝑢𝑐0 = 0𝑐 = 𝑐(𝑡, 𝑧)
𝑚𝑜𝑙𝑚#
𝑚#
𝑔𝑔𝑚* =
𝑚𝑜𝑙𝑚*
𝑐1. 𝑐+𝑐
𝑛
𝜎(𝑐) =9𝜖 + (1 − 𝜖)𝑓.(𝑐):
𝑢 =1 + 𝜈𝑓.(𝑐)
𝑉 .𝜎.(𝑐) =𝜈𝑓′′(𝑐)𝑉 < 0
𝑓(𝑐) =𝐻𝑐
1 + 𝐾𝑐.𝑓.(𝑐) =
𝐻(1 + 𝐾𝑐)#
. 𝑓..(𝑐) < 0. 𝜆(𝑐) =1
σ(𝑐)=𝑑𝑧𝑑𝑡
𝑧 = 0𝑧 = 𝐿
DESORPTION (𝑐1 = 0), simple wave
𝑧 = 0𝑧 = 𝐿
ADSORPTION (𝑐1 = 0)
𝑧 = 0𝑧 = 𝐿
Mean of the slopes (through integration)1.Red line splits triangle in two equal parts2.
Conservation law in finite form9𝑀(𝑡 + Δ𝑡) − 𝑀(𝑡):Δ𝑧 = 9𝐹(𝑧) − 𝐹(𝑧 + Δ𝑧):Δ𝑡
N9𝜖𝑐(𝑡 + Δ𝑡) + (1 − 𝜖)𝑛(𝑡 + Δ𝑡): − 9𝜖𝑐(𝑡) + (1 − 𝜖)𝑛(𝑡):O Δ𝑧 = 9𝑢𝑐(𝑧) − 𝑢𝑐(𝑧 + Δ𝑧):Δ𝑡 = 𝑢Δ𝑡(𝑐+ − 𝑐1)= 9(𝜖𝑐+ + (1 − 𝜖)𝑛+) − (𝜖𝑐1 + (1 − 𝜖)𝑛1):Δ𝑧
Δ𝑡Δ𝑧
= 𝜎P(𝑐1, 𝑐+) =1 + 𝜈Δ𝑛Δ𝑐
𝑉=1𝑉Q1 + 𝜈
[𝑓][𝑐]R 𝜎(𝑐) =
1𝑉(1 + 𝜈
𝑑𝑓𝑑𝑐)
[𝑓][𝑐]
=1
𝑐+ − 𝑐1Q
𝐻𝑐+1 + 𝐾𝑐+
−𝐻𝑐1
(1 + 𝐾𝑐1)R =
𝐻(1 + 𝐾𝑐+)(1 + 𝐾𝑐1)
𝑑𝑓𝑑𝑐
=𝐻
(1 + 𝐾𝑐)#
1. Langmuir isotherm, anti-Langmuir, BET 28-29, 322. Chromatographic cycle 29-303. Pair of equations (32-38)4. Sedimentation 38-39 5. Constant pattern/shock layer 30-32 (19.05)
Residue Curve Maps applied to batch distillation (26.05)
𝑐
𝑛
𝑓(𝑐) =𝐻𝑐
1 − 𝐾𝑐
𝑓(𝑐) = 𝑎𝑐 + 𝑏𝑐#
Adsorption: simple wave Desorption: shock
Adsorption:
𝑓1 − 𝑓2𝑐1 − 𝑐2
= 𝑓′(𝑐2)
BET isotherm
𝑡+ = 𝜎(𝑐+)𝐿.𝑡1 = 𝜎(𝑐1)𝐿𝑡(𝑐) = 𝜎(𝑐)𝐿. 𝑐(𝑡). 𝑡+ ≤ 𝑡 ≤ 𝑡1𝑉𝑡𝐿= 1 + 𝜈
𝐻(1 + 𝐾𝑐)2
. (1 + 𝐾𝑐)2 =𝜈𝐻
𝑉𝑡𝐿 − 1
𝑡3: pulse
𝑡2 =𝐿𝑉Q1 +
𝜈𝐻1 + 𝐾𝑐+
R
Breakthroughtimedependson𝑐4556 = 𝑐+
𝑡7 = 𝑡3 +𝐿𝑉(1 + 𝜈𝐻)
Regenerationtimedoesnotdependon𝑐4556
𝑡3: pulse
𝑡7 = 𝑡3 +𝐿𝑉(1 + 𝜈𝐻)
Regenerationtimedoesnotdependon𝑐4556
𝑡8 =function(𝑐8)
𝑢𝐴𝑐9𝑡3 = 𝑢𝐴h 𝑐(𝑡)𝑑𝑡 =:
7
𝑢𝐴𝐿𝜈𝑉
h 𝑐𝑓..(𝑐)𝑑𝑐 =⬚
7
,"
=𝑢𝐴𝐿𝜈𝑉
[𝑐𝑓. − 𝑓],"7 =
𝑢𝐴𝐿𝜈𝑉
9𝑓(𝑐8) − 𝑐8𝑓.(𝑐8):Singleimplicitequationin𝑐8
𝑡(𝑐) = 𝜎(𝑐)𝐿
𝑑𝑡 = 𝐿𝑑𝜎 =𝐿𝑑𝜎𝑑𝑐 𝑑𝑐 =
𝐿𝑉 𝜈𝑓
..(𝑐)𝑑𝑐
𝐾𝑐8 =𝛽
1 − 𝛽. 𝛽 = √
𝑐9𝑡3𝑉𝐾𝐿𝜈𝐻
Equilibrium chromatography (isothermal adsorption)Tuesday, 5 May 2020 13:01