The membrane reactor model is implemented as an aspen plus user model aspen plus, version 11. The water gas shift reaction was discovered by italian physicist felice fontana in 1780. Simulation of synthesis gas production from steam oxygen. The best source of documentation for most aspen unit operations is to use the online help by selecting the f1 key while in a unit operation setup. Pdf process development for hydrogen production via watergas. Its purpose is to produce hydrogen and to reduce the level of co for final cleanup by preferential oxidation.
Simulation of synthesis gas production from steam oxygen gasification of colombian coal using aspen plus jorge e. Homework 4 problem 1 aspen plus watergasshift homework 4. The pressure in these pipes varies depending on where in the pipe it is. Homework 4 problem 1 aspen plus watergasshift homework. Aspen hydrotreater aspen hysys hydrocracker is used to simulate hydroprocessing units that consist of reactor beds and associated recycle gas quench streams.
The wgs reactor currently represents the largest volume of any catalyst in a fuel processor due to the slow. The wgs reactor constitutes the element of greater volume of the processor motivating its optimization. Aspen plus simulation of biomass gasification with known reaction kinetic m. Introduction the worlds progression towards the hydrogen economy is facilitating the production of hydrogen from various resources. It is found that the conversion of c4h10 reaches a maximum of about 72%. Simulation of rxylene oxidation into phthalic anhydride. The watergas shift process studied in this work was accomplished by developing an aspen plus aspen, 2012 model of the process as shown in figure 1. I guess everyone starts on shift coverage for the first 6 months to a year. Chemical reaction engineering part a methanol synthesis reactor model richard k. Aspen plus was used to simulate the mass and energy balance of the plant. Aug 21, 2014 demonstrates the use of reactor models through an example problem on the production of ethyl acetate in aspen plus.
Aug 21, 2014 provides an overview of the various types of reactor simulator blocks found in aspen plus. It is based on a rigorous, multiplelump reaction system using over 150 components. Process intensification with integrated watergasshift. Co shift reactor is an equilibrium reactor which models water gas shift reaction, completing the gasification process. Reactors model description purpose use for rstoic stoichiometric reactor models stoichiometric reactor. If you dont design it with this dummy stream, you are correct in that you will. The developed model is based on gibbs free energy minimization applying the restricted equilibrium method. Made by faculty at lafayette college and produced by the university of colorado boulder, department of. Reaction kinetics for methane steam reforming msr and water gas shift wgs. How to model water gas shift reactor in aspen plus. Kinetic modeling of low temperature watergas shift. Halvorsen1 1department of process, energy and environmental technology, telemark university college, norway, 1marianne. I have some doubts with simulating water gas shift reaction for ammonia production using aspen plus. Water gas shift in applications where scrubbed syngas hydrogencarbon monoxide h2co ratio must be increasedadjusted to meet downstream process requirements, the syngas is passed through a multistage, fixedbed reactor containing shift catalysts to convert co and water into additional h2 and carbon dioxide co2 according to the following reaction known as the watergas shift wgs reaction.
Reactors jordan university of science and technology. Water gas shift in applications where scrubbed syngas hydrogencarbon monoxide h2co ratio must be increasedadjusted to meet downstream process requirements, the syngas is passed through a multistage, fixedbed reactor containing shift catalysts to convert co and water into additional h2 and carbon dioxide co2 according to the following reaction known as the water gas shift wgs reaction. The water gas shift technology reduces co concentration in the reformate stream to 0. Process simulation to obtain a synthesis gas with high concentration of hydrogen 31 the addition of steam in the second reactor serves to the dual purpose of maintaining the reactor temperature and either to ensure that the excess of methane from the natural gas stream is consumed. Watergas shift process for hydrogen production effects. Aspen rplug reactor model is used with reactor type adiabatic reactor and reaction model isomer. Process development for hydrogen production via watergas shift reaction using aspen hysys. Aspen plus model of water gas shift process for hydrogen production. Nov 08, 2007 this work analyzes the water gas shift reactor design as component of the co cleanup system of the ethanol processor for h 2 production applied to pem fuel cells. Date palm waste gasification in downdraft gasifier and. In the carbon based hydrogen production, water gas shift reaction wgsr is the intermediate step used for.
Then once that is all done, you can link the two with a recycle operator at least in hysys, i assume those exist in the same way in aspen plus, and that will help you converge, on a solution. Aspen simulation of water gas shift student cheresources. Background natural gas, which is primarily methane, is distributed in underground pipes. Copy the water gas shift reaction now or enter it from scratch as a conversion reactor. There are 7 builtin reactor models, rstoic, ryield, requil, rgibbs, rplug, rcstr and rbatch, in aspen plus. Watergas shift modeling of coal gasification in an entrained. Biomass gas andnucleartoliquids simulation files these are aspen plus files associated with the article by james scott and thomas a. Water gas shift for hydrogen production using aspen plus umarul imran amran a, arshad ahmad b, mohamad rizza othman,a a department of chemical engineering, universiti malaysia pahang, lebuhraya. Process development for hydrogen production via watergas shift.
An industrial case, petrochemicals, vivek patel, intechopen, doi. Process development for hydrogen production via watergas. The results obtained from the simulation of the developed aspen plus model of the watergas shift process using 50 kmolhr of each of the reactants carbon monoxide and steam, and using reaction temperature and pressure of 800. The watergas shift reaction wgsr describes the reaction of carbon monoxide and water vapor to form carbon dioxide and hydrogen. Methanol reactor a look at methanol reactors from an example in kyle. This work analyzes the watergasshift reactor design as component of the co cleanup system of the ethanol processor for h 2 production applied to pem fuel cells. Process simulation of hydrogen rich gas production from producer. Adams ii entitled biomass gas andnucleartoliquids bgntl processes part i. We wrote a matlab program to simulate a methanol synthesis reactor. The reaction of the process was modelled as an equilibrium type, the equilibrium constant of which was estimated. Index termsgasification, thermodynamic modeling, supercritical water, watergas shift reaction i. It models water gas, bourdard, and mathenation reactions using gibbs free energy minimization method at equilibrium. The reaction occurring in the reactor, which was an equilibrium type, is written as. The forward reaction is exothermic with a reaction enthalpy of 41 kj mol1.
Aspen requires input of reactor dimensions in lieu of reactor volume. Rigorous multitubular catalytic reactor modelling and exportation into the process flowsheet j. Aspen plus model of watergas shift process for hydrogen production. Adams ii entitled biomassgasandnucleartoliquids bgntl processes part i.
This problem is based on felder and rousseaus elementary principles of chemical processes 1 example 4. Hello everybody, i just got stucked with an exercise, i have to simulate in aspen a fixedbed reactor, where the solid is in this case formed by iron pellets and the gaseous phase is pure hydrogen and carbon monoxide. Model development and simulation published in the canadian journal of chemical engineering in press, 2018. The membrane reactor model is implemented as an aspen plus. Aspen plus 2006 in this session you will learn how to create a tubular reactor model in aspen plus with a kinetic reaction rate. Made by faculty at lafayette college and produced by the university of. Gonzalezrivera 1, rocio sierraramirez 1 and gerardo gordillo 2 1 chemical engineering department, university of. Pcis water gas shift and prox technologies developed under nsf, navy and internal programs have demonstrated highly selective conversion of co in an extremely small package. The aspen plus gibbs reactor, rgibbs, is used for volatile combustion, in conformity with the assumption that volatile reactions follow the gibbs equilibrium. The ultimate and proximate analysis data used in the first simulation step were obtained from literature 6 and are presented in table 1. Forward and reverse watergas shift kinetics catalytic effect of reactor materials, membrane materials need for heterogeneous catalysis.
Hydrogenselective membranes for highpressure hydrogen separation. Kinetic based simulation of methane steam reforming and water. Push the add set button and fill the set out as shown. Name it wgsconv and give it a conversion of 100% as well for now. Modeling and simulation of water gas shift reactor.
Optimization modeling and simulation of the autothermal reactor in the methanol production process was. There are number of materials capable of catalyzing the watergas shift reaction, which are divided in two main classes that is the ironbased catalysts and the copperbased catalysts. This project will develop hydrogenselective membranes for an innovative watergasshift reactor that improves gas separation. An industrial case douglas falleiros barbosa lima 1, fernando ademar zanella 1, marcelo kaminski lenzi 2 and papa matar ndiaye 2 1refinaria presidente getulio vargas repar petrobras 2universidade federal do parana ufpr brazil 1. Rstoich should be used in cases where the stoichiometry is known but the reaction kinetics is either unknown or negligible. Simulation of sugarcane bagasse gasification using aspen plus. Within the project a water gas shift membrane reactor model has been made for the process simulation package aspen plus.
Madeira, for giving me the greatest opportunity to participate in this field of research, for his. Development of an aspen plus model of a chemicallooping. Demonstrates the use of reactor models through an example problem on the production of ethyl acetate in aspen plus. In addition, a batch model is available for batch reactors. Watergas shift process for hydrogen production effects of. This is a 1dimensional, plug flow model that assumes there are no radial gradients in the catalyst bed. Water gas shift reverse water gas shift fischertropsch synthesis abstract a simulation model of biomass gasi. Gasifierb and co shift reactor collectively simulates the gasification zone of the gasifier. Analysis of design variables for watergasshift reactors by. Rplug, rcstr and rbatch are rigorous models for plug flow, cstr and batch reactors, respectively.
Aspen plus modelling of airsteam gasification of biomass. The aim of this project is to develop the water gas shift membrane reactor technology to proof of concept. It was not until much later that the industrial value of this reaction was realized. Equilibrium reactor functions with aspen rice university. Simulation of r xylene oxidation into phthalic anhydride.
Provides an overview of the various types of reactor simulator blocks found in aspen plus. Development of an aspen plus model of a chemicallooping reformer reactor daniel christoph fernandes lohse department of energy and environment division of energy technology chalmers university of technology se412 96 goteborg sweden abstract synthetic natural gas sng from biomass gasification is viewed as a promising. Aspen plus simulation of biomass gasification with known. Aspen simulation of water gas shift posted in student. Catalysts for fuel cell application would need to operate at low temperatures. Pdf kinetic based simulation of methane steam reforming. Watergasshiftreaction supported ionic liquid phase silp. Modeling and simulation of watergas shift reactors. The water gas shift wgs reaction is an equilibrium reaction between water and carbon monoxide on the one side and carbon dioxide and hydrogen on the other. Close the reaction windows and return to the basis manager. Steam gasification of biomass with subsequent syngas. Hydrogen flux and selectivity through membrane durability of membrane in extreme environments labscale approach address scientific issues using mainly thick i. Biomassgasandnucleartoliquids simulation files these are aspen plus files associated with the article by james scott and thomas a. The water gas shift process studied in this work was accomplished by developing an aspen plus aspen, 2012 model of the process as shown in figure 1.
With the high demand for clean fuel and the critical role of the water gas shift reaction in hydrogen fuel cells, the development of water gas shift catalysts for the application in fuel cell technology is an area of current research interest. Water gas shift for hydrogen production using aspen plus. Simulation in aspen of a fixedbed reactor posted in chemical process simulation. Water gas shift membrane reactor model in aspen plus. Hydrogen flux and selectivity through membrane durability of membrane in extreme environments labscale approach. Reactor modeling in aspen plus there are seven blocks for reaction modeling in aspen that can perform calculations based on the stoichiometry, yield, equilibrium, and gibbs minimization, plus the kinetics models for cstr and pfr. Aspen plus 2006 in this session you will learn how to create a stoichiometric reactor model in aspen plus 2006. Two examples will be shown in this section of the notes and compared with results from matlab and results reported in thermodynamics texts. Madeira, for giving me the greatest opportunity to participate in. Kinetic modeling of low temperature watergas shift reaction. Simulation of coal gasification process using aspen plus. In this aspen plus run we will specify an irreversible reaction and will ignore the reverse reaction. Carbon will partly constitute the gas phase, which takes part in.
I want to model a water gas shift reactor which will be after a reformer using rgibbs reactor in aspen plus. Kinetic based simulation of methane steam reforming and water gas shift for hydrogen production using aspen plus march 2017 chemical engineering transactions 56. This was achieved by picking the pieces of process equipment of the plant from the appropriate section of the aspen hysys environment and connecting them together through appropriate streams. Douglas falleiros barbosa lima, fernando ademar zanella, marcelo kaminski lenzi and papa matar ndiaye march 28th 2012. This reduction in carbon dioxide reduces its partial pressure in the gas mixture and consequently water gas shift reaction eq. The development of a process for the production of hydrogen through watergas shift reaction has been developed and simulated in this work using aspen hysys. Simulation in aspen of a fixedbed reactor chemical process.