Analysis of design variables for watergasshift reactors. This project is in response to a requirement for a system that combines water gas shift technology with separation technology for coal derived synthesis gas. A sulfur and halidetolerant water gas shift catalyst and a sulfurtolerant dense metallic. Water gas shift reaction kinetics and reactor modeling for. The justification of such a system would be improved efficiency for the overall hydrogen production. For more than 90 years after its first industrial application, many issues in respect of the catalyst, process configuration, reactor design, reaction. Hydrogenselective membranes for highpressure hydrogen separation. In my humble opinion, first you must read a book higman gasification for.
This project will develop hydrogenselective membranes for an innovative watergasshift reactor that improves gas separation. In this configuration, the syngas stream, composed by co, co 2, and h 2 and fed to the methanol synthesis reactor, is produced by means of a reversewatergasshift by which a co 2 stream is partially converted in carbon monoxide. An innovative process scheme to produce methanol from carbon dioxide is here presented and assessed via simulation. 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. Process intensification with integrated watergasshift. A 1d dynamic model of a sour water gas shift reactor. This presentation does not contain any proprietary, confidential, or otherwise restricted information. Water gas shift reaction an overview sciencedirect topics. The watergas shift reaction plays a key role in hydrogen production. Nitrogen gas was used as an inert diluent to make up the total pressure to 1 atm.
The book explains the development of catalysts for water gas shift wgs reaction at different temperatures and steamco ratios, and also discussing the effect of different dopants on the wgs activity of iron oxide and the promotion and inhibition roles of the dopants on the wgs activity of iron oxide are explained. Catalysts for fuel cell application would need to operate at low temperatures. It is important to ensure that the equipment specified will be capable of achieving the desired yields and selectivity. Gasliquidsolid reactor design february 1, 1979 edition. Hi,i need to design a water gas shift reactor as part of my design project. In this study, a water gas shift membrane reactor containing both a co2selective polymeric membrane and a commercial cuznoal2o3 catalyst was developed for hydrogen processing for fuel cells, especially for the protonexchange membrane fuel cells pemfcs. Jan 23, 2008 water gas shift reactor posted in student. Analysis of design variables for watergasshift reactors by. Co ratio to be 2, and i have researched that in order to produce methanol, only one single adiabatic high temperature water gas. Pdf the progress in water gas shift and steam reforming. Its purpose is to produce hydrogen and to reduce the level of co for final cleanup by preferential oxidation.
Continue to synthesize and characterize improved membranes for the reactor. Design of water gas shift converter posted in student. In the carbon based hydrogen production, water gas shift reaction is the intermediate step used for hydrogen enrichment and co reduction in the synthesis gas. Modeling and simulation of watergas shift reactors. Experimental and modeling work ii abstract the main goal of this work was to perform the experimental study of a watergas shift wgs reaction and produced hydrogen separation unit using a pd membrane. Watergas shift wgs operation of precombustion co2 capture. How to determine the optimum ld ratio for a water gas shift reactor. This configuration offers a lot of design flexibility because the material that. The watergas shift reaction shift conversion is necessary because the gaseous product from a gasifier generally contains large amounts of carbon monoxide and hydrogen, plus lesser amounts of other gases. Biological watergas shift conversion of carbon monoxide to hydrogen milestone completion report wade a. In a batch reactor, the reagents are added together and allowed to react for a given amount of time. Copper based medium temperature water gas shift catalyst is ideal for use in fuel cell and other distributed hydrogen production applications.
Development of novel watergasshift membrane reactor. The recent concerns about clean energy and hydrogen production have led to a renewed interest in the water gas shift reaction over the past few years. The wgs reactor constitutes the element of greater volume of the processor motivating its optimization. This shift steam is taken from an intermediate extraction point in the steam turbine. Search the worlds most comprehensive index of fulltext books. Biological watergas shift conversion of carbon monoxide to. Madeira, for giving me the greatest opportunity to participate in this field of research, for his. Carbon monoxide and hydrogen if they are present in the mole ratio of 1. Modeling and simulation of water gas shift reactor. Amos national renewable energy laboratory 1617 cole boulevard golden, colorado 8040393 nrel is a u.
The book explains the development of catalysts for water gas shift. In adiabatic operation mode, for achieving a co composition of 0. Design of watergas shift reactors journal article osti. In the mid1980s, doe turned to a smaller modular design a modular htgr with an annular core and steel rpv, and a conceptual design was completed in 1987. Pdf modeling and simulation of water gas shift reactor. Discover the best natural gas energy in best sellers. Catalysts free fulltext recent advances in structured catalysts. Pilot water gas shift membrane device for hydrogen from coal tom barton western research institute 511. Conduct the prototype membrane reactor demonstration for a fuel cell. Copper based medium temperature water gas shift catalyst. Any steam extracted for the shift is not expanded in the turbine to produce power, therefore the water gas shift step is typically viewed as a burden on the steam cycle. Therefore, reducing the size of the water gas shift reactor is an important issue.
Subsequent chapters are devoted to reactor sizing and modelling in some simple situations, and more detailed coverage of the design and operation of the principal reactor types. Research developments and applications outlines the importance of hydrogen as a future fuel, along with the various hydrogen production methods. Design of water gas shift converter student cheresources. By douglas falleiros barbosa lima, fernando ademar zanella, marcelo kaminski lenzi and papa matar ndiaye. Department of energy laboratory operated by midwest research institute battelle contract no. Methanol production from co2 via reversewatergasshift. The reverse water gas shift reaction rwgs reaction was discovered in the 19th century as a method of producing water from carbon dioxide and hydrogen, with carbon monoxide as a side product.
Steadystate simulation of a sour water gas shift reactor. Find the top 100 most popular items in amazon books best sellers. Design of experiments on the kinetics of the watergas shift. From the analysis of variance of these sixteen runs it can be shown that the temkin mechanism for the water gas shift reaction cannot represent the data within the experimental accuracy. Novel water gas shift catalysts commercial water gas shift wgs lts catalysts. The wgs reactor currently represents the largest volume of any catalyst in a fuel processor due to the slow. Find, read and cite all the research you need on researchgate. Evaluation of alternate water gas shift configurations for.
Introduction a watergasshift wgs reactor for the conversion of carbon monoxide co and water to. Shah, february 1, 1979, mcgrawhill education edition, hardcover in english. Zeolite membrane reactor for hightemperature watergas shift. Hydrogen production in a large scale watergas shift pdbased. However, its application as an alternative energy source is limited due to several constraints such as lack of technical. Help us write another book on this subject and reach those readers. 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. I am assigned to design a water gas shift reactor to shift the h2. Kinetic study of high temperature water gas shift reaction. An increase of the reactor temperature is thermodynamically unfavorable for the watergasshift reaction. Draft preapplication safety evaluation report for the modular hightemperature gas cooled reactor nureg38 was written in early 1989.
Winston ho department of chemical and biomolecular engineering. Co2selective water gas shift membrane reactor for fuel cell. Packed bed membrane reactor for the watergas shift reaction. Scheme of the reactor thermodynamic modeling of water gas shift reaction in supercritical water. Thermodynamic model formulation the thermodynamic model proposed in this work is based on gibbs free energy minimization which implies that the system has reached an equilibrium state. Kinetic, experimental, modeling, and simulation studies of a catalytic high temperature 673. Reactor design is a vital step in the overall design of a process. The watergas shift reaction wgsr describes the reaction of carbon monoxide and water. The lts shift reactor operates at a range of 200250 c. In most hydrocarbon processors, the water gas shift reactor is the biggest and heaviest component because the reaction is relatively slow compared to the other reactions and is inhibited at higher temperatures by thermodynamics. New catalyst for the h 2 production by water gas shift reaction processes tesi di dottorato di ricerca in chimica industriale settore chim04 presentata da dr. How do you design a high temperature water gas shift reactor.
The book explains the development of catalysts for water gas shift wgs reaction at. Pilot water gas shiftmembrane device for hydrogen from coal. Packed bed membrane reactor for the water gas shift reaction. Please suggest me some of books to read about model organism. This requires development of more active lowtemperature catalysts and advanced reactor concepts to overcome limitations related to low co conversions in the range 250350 c. The watergas shift wgs reaction is an equilibriumlimited reaction at higher temperatures, usually kinetically limited below 250 c. 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. Catalyst development for watergas shift gek gasifier. I am trying to design a packed bed reactor for a low temperature shift reaction. Complete the proofofconcept demonstration using the lab membrane reactor. Modeling and simulation of water gas sh ift reactor.
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