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Exergy Analysis of Oxidative Steam Reforming of Methanol for Hydrogen Producton: Modeling Study

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Published/Copyright: July 9, 2013
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International Journal of Chemical Reactor Engineering
From the journal International Journal of Chemical Reactor Engineering Volume 11 Issue 1

Abstract

Hydrogen production by oxidative steam reforming of methanol in a fixed bed catalytic reactor was modeled and simulated. The addition of O2 to feed reduced the temperature in the reformer. 99.86% conversion was obtained at 550 K and S/C molar ratio of unity in steam reforming while it is at 540 K in oxidative steam reforming. Although H2 and CO yields were decreased in oxidative steam reforming in comparison to steam reforming, the reductoin H2 yield was note significant whereas reduction in CO was appreciably high. The thermal and exergy efficiencies were favored by reforming temperature and S/C molar ratios. However, variation in S/C molar ratio showed negligibly small effect on efficiencies. The reforming temperature had a notable influence on the efficiencies. The exergy destruction was found to be lower at higher temperature and S/C molar ratio. Thus, oxidative steam reforming of methanol at 540 K and S/C molar ratio of unity utilizes sufficient amount of input energy in the form of useful work and thermodynamic irreversibilities in the reactor are quantitatively small.

Keywords: reforming; modeling; exergy efficiency; thermal efficiency; exergy destruction; hydrogen efficiency

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Published Online: 2013-07-09

©2013 by Walter de Gruyter Berlin / Boston

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https://doi.org/10.1515/ijcre-2012-0073
Keywords for this article
reforming; modeling; exergy efficiency; thermal efficiency; exergy destruction; hydrogen efficiency

Articles in the same Issue

  1. Masthead
  2. Masthead
  4. Efficient Synthesis of 1-Acetylpyrene Using [Bmim]Cl–FeCl3 Ionic Liquid as Dual Catalyst and Solvent
  5. Ethanol Steam Reforming for Hydrogen Production in Microchannel Reactors: Experimental Design and Optimization
  6. Modeling NOx Adsorption onto Fe/ZSM-5 Catalysts in a Fixed Bed Reactor
  7. Multistep Optimization and Residue Disposal Study for Electrochemical Treatment of Textile Wastewater Using Aluminum Electrode
  8. Effect of Vibrating Sparger on Mass Transfer, Gas Holdup, and Bubble Size in a Bubble Column Reactor
  9. Production of Silicon from SiH4 in a Fluidized Bed, Operation and Results
  10. Reforming of Glycerol into Bio-Crude: A Parametric Study
  11. Hydrodynamic and Mass Transfer Characteristics in a Large-Scale Slurry Bubble Column Reactor for Gas Mixtures in Actual Fischer–Tropsch Cuts
  12. Optimization of l-Asparaginase Production by Isolated Aspergillus niger C4 from Sesame (black) Oil Cake under SSF using Box–Behnken Design in Column Bioreactor
  13. Simplified Kinetic Model for Thermal Combustion of Lean Methane–Air Mixtures in a Wide Range of Temperatures
  14. Identification and Optimization of Recombinant E. coli Fed-Batch Fermentation Producing γ-Interferon Protein
  15. A Comparison of Monomeric Phenols Produced from Lignin by Fast Pyrolysis and Hydrothermal Conversions
  16. Design and Optimization of a Fixed Bed Reactor for Direct Dimethyl Ether Production from Syngas Using Differential Evolution Algorithm
  17. Conversion Enhancement of Fixed-Bed Reactors Using Two-Dimensional Hollow Cylindrical Catalyst Pellet
  18. Bubble Columns with Internals: A Review
  19. A Historic Review on R&D of China’s FCC Riser Termination Device Technologies
  20. Recent Advances of Spout-Fluid Bed: A Review of Fundamentals and Applications
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  22. A Novel Kinetics Study on H2O2 Decomposition inthe Propylene Epoxidation System in a Fixed-Bed Reactor
  23. Implementation of Homotopy Perturbation Method to Solve a Population Balance Model in Fluidized Bed
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  25. Application of Honey-Bee Mating Optimization to Naphtha Reforming Reactor
  26. Modeling and Simulation of a Fischer–Tropsch Slurry Bubble Column Reactor Using Different Kinetic Rate Expressions for Iron and Cobalt Catalysts
  27. Solids Suspension Study in a Side-Entering Stirred Tank Through CFD Modeling
  28. Triphase Catalysis Using Silica Gel as Support
  29. Enhanced Trichloroethylene CatalyticOxidation on Modified Lanthanum Manganite ano-Perovskites
  30. A Novel Reactor for Microwave Hydrothermal Scale-up Nanopowder Synthesis
  31. Production of Amino and Organic Acids from Protein Using Sub-Critical Water Technology
  32. Purification of Crude Glycerine Obtained from Transesterification of Cottonseed Oil
  33. Predicting the Liquid Film Thickness and Droplet–Gas Flow in Effervescent Atomization: Influence of Operating Conditions and Fluid Viscosity
  34. Zinc-Modified MCM-22 as Potential Solid acid Catalyst for Friedel–Crafts Alkylation Reaction
  35. Dynamic Characteristics and Speed Control Strategy of Cellulose Hydrolysis Reactor at High Solids Loading
  36. Kinetic Study of Light Mercaptans in the Presence of Merox Catalyst and Caustic Soda
  37. Applications of Feed-Forward Neural Network to Study Irregular-Shape Particle Effects on Hydrodynamics Behavior in a Liquid–Solid Circulating Fluidized Bed Riser
  38. Experimental Investigation on the Translational and Rotational Motion of Biomass Particle in a Spout-Fluid Bed
  39. Industrial Methanol from Syngas: Kinetic Study and Process Simulation
  40. Study of Co-pyrolysis Characteristics of Lignite and Rice Husk in a TGA and a Fixed-Bed Reactor
  41. Exergy Analysis of Oxidative Steam Reforming of Methanol for Hydrogen Producton: Modeling Study
  42. Lead (II) Pollution Enhances the Binding of Transgenic Toxin in Brown and Red Soils: Equilibrium and Kinetics
  43. Influence of a Second Liquid Phase upon Carbon Dioxide Chemical Absorption
  44. Brackish Water Desalination by Electrodialysis: CaCO3 Scaling Monitoring During Batch Recirculation Operation
  45. The Effect of TiO2 Contained within a Titanium Silicalite (TS-1) Catalyst and on the Selective Oxidation of Ammonia
  46. Understanding Pt–Rh Synergy in a Three-Way Catalytic Converter
  47. Mathematical Modelling of Microwave Pyrolysis
  48. Photocatalytic Purification of Wastewater Polluted by Odorant Sulfur Compounds Using Titanium Oxide in a Continuous Photoreactor
  49. Adsorption Kinetics of Oxytetracycline onto Activated Carbon in a Closed-Loop Fixed Bed Reactor
  50. Catalytic Wet Peroxide Oxidation of Chlorophenol Over a Ce0.86Cu0.14–xO2 Catalyst
  51. Chemical Reaction Effect upon Gas–Liquid Interfacial Area in a Bubble Column Reactor
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