Fossil hydrogen with reduced CO2 emission: Modeling thermocatalytic decomposition of methane in a fluidized bed of carbon particles

    Authors

    N. Muradov; Z. Chen;F. Smith

    Comments

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    Abbreviated Journal Title

    Int. J. Hydrog. Energy

    Keywords

    hydrogen; methane decomposition; modeling; fluidized bed reactor; TURBULENT FLUIDIZATION; ACTIVATED CARBONS; DECARBONIZATION; TRANSITION; PYROLYSIS; FUEL; Chemistry, Physical; Electrochemistry; Energy & Fuels

    Abstract

    Thermocatalytic decomposition (TCD) of methane is an environmentally attractive approach to the production of hydrogen with reduced CO2 emissions. The perspectives of large-scale hydrogen production via TCD of natural gas (NG) are discussed in this paper. The process involves a fluidized bed reactor-regenerator system with carbon catalyst particles circulating between the apparatuses in a fluidized state. Modeling and scaling-up of a fluidized bed reactor (FBR) for TCD of NG is presented in this paper. In particular, two mathematical models, one for the bubbling fluidized bed and the other for the turbulent fluidized bed, were developed and implemented into a computer code to predict the FBR performance. These models capture most of the chemistry and physics occurring within the FBR. Model predictions compared favorably with the experimental data on methane decomposition over carbon catalyst particles. (c) 2005 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.

    Journal Title

    International Journal of Hydrogen Energy

    Volume

    30

    Issue/Number

    10

    Publication Date

    1-1-2005

    Document Type

    Article

    Language

    English

    First Page

    1149

    Last Page

    1158

    WOS Identifier

    WOS:000230349800013

    ISSN

    0360-3199

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