Date post: | 20-Dec-2015 |
Category: |
Documents |
View: | 216 times |
Download: | 1 times |
Team 16: The ChemiesTeam 16: The Chemies It’s not easy being greenIt’s not easy being green
Dave JankeDave Janke Mike HallMike Hall
Briley LambertBriley Lambert Laura HamiltonLaura Hamilton
OutlineOutline
Project OverviewProject Overview Process Flow DiagramProcess Flow Diagram Design DecisionsDesign Decisions ObstaclesObstacles Obstacles OvercomeObstacles Overcome Current StatusCurrent Status QuestionsQuestions
Project OverviewProject Overview
Design a pilot plant to produce poly(Design a pilot plant to produce poly(--hydroxybutyrate), a biodegradable hydroxybutyrate), a biodegradable polymer.polymer.
O
N
OO
NAl
+
Co(CO)4 -
O O
NZn
N
O Pr
+CO
Carbonylation beta-butyrolactoneepoxide Ring Opening Polymerization
O
O n
Poly(Beta-hydroxybutyrate)"PHB"
Process Flow DiagramProcess Flow Diagram
-butyrolactone
Condenser
Reboiler
Distillation Column
-BL
CO purge and recycle
Propylene Oxide (liq)Catalyst 1
PO recycle
Extruder
PHBpellets
Agitated Bubble Tank
Static Mixer
Membrane Separator
Carbon Monoxide (g)
Catalyst 2
Catalyst 1recycle
Design DecisionsDesign Decisions
Agitated bubble tank reactorAgitated bubble tank reactor Good mass transferGood mass transfer Long residence time possibleLong residence time possible Preliminary size – 210 litersPreliminary size – 210 liters Impeller and mixing equipment Impeller and mixing equipment
Picture from Chemineer, Inc.
Design DecisionsDesign Decisions
Membrane separatorMembrane separator Remove first catalystRemove first catalyst
Static MixerStatic Mixer CostCost Heat TransferHeat Transfer
Picture from Chemineer, Inc.
ObstaclesObstacles
Reactor sizingReactor sizing Gas hold-upGas hold-up MixingMixing SpargerSparger
Polymerization reactionPolymerization reaction Heat exchangeHeat exchange Residence timeResidence time
Obstacles OvercomeObstacles Overcome
Reaction KineticsReaction Kinetics Properties of Properties of ββ-butyrolactone-butyrolactone HYSYSHYSYS
Enthalpy of reactionEnthalpy of reaction DistillationDistillation
Current StatusCurrent Status
Request for mixing/gas dispersion bookRequest for mixing/gas dispersion book Reactor design estimatesReactor design estimates Distillation design in HYSYSDistillation design in HYSYS Commercially available equipmentCommercially available equipment
ExtruderExtruder Mixing EquipmentMixing Equipment Membrane SeparatorMembrane Separator