Methanation of carbon dioxide by using membrane reactor integrated with water vapor permselective membrane and its analysis

Ohya, Haruhiko; Fun, Jun; H, Kawamura; Itoh, Koutarou; Ohashi, Hirofumi; Aihara, Masahiko; Tanisho, Shigeharu; Negishi, Youichi

doi:10.1016/s0376-7388(97)00055-0

Cited by 60 publications

(30 citation statements)

References 17 publications

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“…Ohya et al developed a membrane reactor integrated with water vapor permselective membrane. This reactor can be used for the Sabatier reaction for methanation of carbon dioxide with hydrogen [115]. Brooks et al has designed a microchannel reactor for Sabatier process for CO 2 reduction by H 2 , producing H 2 O and CH 4 .…”

Section: Hydrogen Fueling Enginementioning

confidence: 99%

A review on production, storage of hydrogen and its utilization as an energy resource

Dutta

2014

Journal of Industrial and Engineering Chemistry

661

188

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Section: Hydrogen Fueling Enginementioning

confidence: 99%

A review on production, storage of hydrogen and its utilization as an energy resource

Dutta

2014

Journal of Industrial and Engineering Chemistry

661

188

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“…A membrane fixed bed reactor was investigated by Ohya et al . They reported an 18 % higher conversion with the membrane application compared to that of a typical fixed bed.…”

Section: Introductionmentioning

confidence: 99%

Model‐based Optimal Sabatier Reactor Design for Power‐to‐Gas Applications

2017

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The existing infrastructure for natural gas storage and transport made the Sabatier process an attractive step within the power‐to‐gas process chain for intermittent renewable energy storage. A model‐based optimal design for the methanation of carbon dioxide with hydrogen to methane under process‐wide constraints is presented. After inclusion of the downstream units into the analysis, the product methane fulfils the specifications for the natural gas grid. The optimization goal was to maximize the space–time yield by applying the systematic flux‐oriented elementary process function methodology. The optimum temperature and concentration profiles along the reaction coordinate were first determined, after which they were approximated using two reaction configurations: 1) a hydrophilic membrane reactor and 2) a cascade of polytropic reactors with interstage condensation. The results show that an optimized cascade of three polytropic fixed bed reactors (e.g., optimum temperature profile) and two intermediate condensation steps is the best technical approximation for maximizing the space–time yield.

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“…Both reaction steps (4,5) generate water, i.e., these steps are affected by the water partial pressure, which is high at high conversion. It is well known that actively removing water increases the overall conversion yield, which is exploited in sorption enhanced catalysis [39] and membrane reactors [40]. There are indications that the distribution of main and side products (CO [39] and soot production [41]) is influenced by the water partial pressure beyond [23] what is expected from thermodynamics [19].…”

Section: Reaction Mechanism Of Co 2 Methanationmentioning

confidence: 99%

Volatile Hydrogen Intermediates of CO2 Methanation by Inelastic Neutron Scattering

et al. 2020

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Despite vast research efforts, the detection of volatile intermediates of catalytic reactions remains a challenge: in addition to the compatibility of the technique to the harsh reaction conditions, a molecular understanding is hampered by the difficulty of extracting meaningful information from operando techniques applied on complex materials. Diffusive reflectance infrared Fourier transform spectroscopy (DRIFTS) is a powerful method, but it is restricted by optical selection rules particularly affecting the detection of hydrogen. This gap can be filled by inelastic neutron scattering (INS). However, INS cannot be used on hydrogenated systems at temperatures higher than 20 K. We demonstrate how its use as a post-mortem method gives insights into the crucial intermediates during CO2 methanation on Ni/alumina-silica catalysts. We detect a variety of H–, O–, and C-based intermediates. A striking outcome is that hydrogen and oxygen are concurrently chemisorbed on the catalysts, a result that needs the combined effort of DRIFTS and INS.

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Methanation of carbon dioxide by using membrane reactor integrated with water vapor permselective membrane and its analysis

Cited by 60 publications

References 17 publications

A review on production, storage of hydrogen and its utilization as an energy resource

A review on production, storage of hydrogen and its utilization as an energy resource

Model‐based Optimal Sabatier Reactor Design for Power‐to‐Gas Applications

Volatile Hydrogen Intermediates of CO2 Methanation by Inelastic Neutron Scattering

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