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ELCOMETOOURJOHUBBLEs PRESENT

HAIRLINDA ARINI AGUSTIN

KARINA FRANSISKA

Click to Sta Click to EXIT

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HERMODYNAMIC ASPECT PRODUCE H

STEAM REFORMING OF NATURE GA

INTRODUCTION

MATERIALS

RESULTS ANDDISCUSSION

CONCLUTION

METHODS

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INTRODUCTION

Nowdays many hydrogen gas applied invarious chemical industry (amonia hydrochloric ac

n the production processes of liquid coal, hydrogen is needed fo

Hydrogen production requires heat energy andource of usable energy is heat energy that comes from nuclear

This study will discuss the thermodynamic aspects of an operaeeds to be considered in the process of hydrogen production us

PP (Nuclear Power Plant)Steam Reforming

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PP (Nuclear Power Plant)

BACK

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team Reforming

BACK

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drogen production by steam reforming of natural gas is the resbetween natural gas (methane) and steam at high tempe

tural gas is a gaseous fossil fuel which is primarily consisting ofwhich is a short-chain and light hydrocarbon molecu

Natural gas also contains heavier hydrocarbon moleculesmethane (C2H6), propane (C3H8) and butane (C4H1

MATERIALS

atural gas

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atural gas

BACK

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METHODS

steps of the steam reforming process consists of pretreatment he process of reforming into synthesis gas (syngas), furthermor

which is rich of hydrogen and hydrogen gas purifica

action takes place at a temperature 300-400oC and the pressur

Reforming process carried out in a primary reformwhich is filled with nickel oxide (NiO) catalyst.

The inlet temperature to primary reformer is 530-65and outlet temperature is 770-811oC, pressure 35-45 k

REACTIONTABLE

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secondary reformer is needed to complete the reaction in the pcorporating oxygen reacted with hydrogen gas to produce heat

Inlet temperature of secondary reformer is 520-560

and outlet temperature is 920-1050oC, the pressure is 35

Reaction conditions for the production of hydrogen fmethane is determined by the thermodynamics of steam from methane to CO and H2 and shift reaction to form CO

REACTIONTABLE

REACTION

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REACTION

H2 + RHS H2S + RH

ZnO + H2S ZnS + H2O

CH4 + H2O CO + 3H2

CO + H2O

CO2 + H2

H2(g) + O2(g) H2O(g)

BACK

TABLE

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TABLE

BACK

RESULTS AND

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RESULTS ANDDISCUSSION

his time, the process of hydrogen production by steam reforminas a raw material is the most widely used is about 48% of wor

his hydrogen production process occurs heat transfer in radiatio

Equilibrium of the reaction depends on the reactiotemperature, pressure and steam to carbon ratio

main product of the formation of carbon in the steam reforming

This type of whisker growth on the top of the nickel cry

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Carbon formation is also dependent on the kinetics oreaction of hydrocarbons absorbed with oxygen and f

issociation of hydrocarbons into carbon atoms, which is soluble

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Utilization of heat energy from NPP for the productiohydrogen is one of the development of NPP heat reco

ased on study of the thermodynamic aspects of formation procedrocarbons absorbed or carbon. hydrogen production by the ste

natural gas, hydrogen production reaction is endothean increase in temperature will increase the reaction con

he temperature rise is limited by the strength of the material an

Viewed from equilibrium reaction, reforming reaction will beoperated at low pressure, but will result in increased loadcompressor in the refining and transportation of hydrogen

so that the optimum pressure is 35-40 kg/cm2.

CONCLUTION

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Steam to carbon ratio of 2.5 and temperature of 92will produce the maximum methane conversion

Phase in terms of the reaction, catalyst type and the hmedium suitable type of reactor used for the production of

steam reforming is in coupling with the HTGR NPP is a fixed b

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Katrya tifaniWhy kinetic reaction influence the

carbon formationmirdA PRISMATHE PURPOSE OF THE JOURNALSUCI AYUCAN EXPPLAIN PROCES IN THESTEAM PROCES..