Preparation, characterization and application of a catalytic NaA membrane for CH4/CO2 reforming to syngas

B. S. Liu; L. Z. Gao; C. T. Au

doi:10.1016/S0926-860X(02)00264-8

Preparation, characterization and application of a catalytic NaA membrane for CH₄/CO₂ reforming to syngas

B. S. Liu, L. Z. Gao, C. T. Au

Department of Chemistry

Research output: Contribution to journal › Journal article › peer-review

53 Citations (Scopus)

Abstract

The NaA and La₂NiO₄/NaA composite membranes were prepared by means of in situ hydrothermal synthesis. The structure, morphology, separation performance, as well as chemical state and surface composition of a La₂NiO₄/NaA composite membrane were investigated by means of techniques, such as XRD, SEM-EDX, GC, TPD, XPS, and XAES. When the membrane was applied in a membrane reactor for CH₄/CO₂ reforming, CH₄ and CO₂ conversions, and CO and H₂ selectivities were significantly higher than the values observed over a traditional fixed-bed reactor. We studied the effects of the flow rate of sweeping N₂, gas hour space velocity (GHSV), and reaction temperature on the conversions of CH₄ and CO₂. The carbon deposited on the surface of membrane was studied by means of the TPO-MS technique.

Original language	English
Pages (from-to)	193-206
Number of pages	14
Journal	Applied Catalysis A: General
Volume	235
Issue number	1-2
DOIs	https://doi.org/10.1016/S0926-860X(02)00264-8
Publication status	Published - 30 Aug 2002

Scopus Subject Areas

Catalysis
Process Chemistry and Technology

User-Defined Keywords

CH/CO reforming
LaNiO/NaA composite membrane
Membrane reactor
NaA synthesis

Access to Document

10.1016/S0926-860X(02)00264-8

Cite this

@article{1a037a0089924c939c3c4b61871a56c0,

title = "Preparation, characterization and application of a catalytic NaA membrane for CH4/CO2 reforming to syngas",

abstract = "The NaA and La2NiO4/NaA composite membranes were prepared by means of in situ hydrothermal synthesis. The structure, morphology, separation performance, as well as chemical state and surface composition of a La2NiO4/NaA composite membrane were investigated by means of techniques, such as XRD, SEM-EDX, GC, TPD, XPS, and XAES. When the membrane was applied in a membrane reactor for CH4/CO2 reforming, CH4 and CO2 conversions, and CO and H2 selectivities were significantly higher than the values observed over a traditional fixed-bed reactor. We studied the effects of the flow rate of sweeping N2, gas hour space velocity (GHSV), and reaction temperature on the conversions of CH4 and CO2. The carbon deposited on the surface of membrane was studied by means of the TPO-MS technique.",

keywords = "CH/CO reforming, LaNiO/NaA composite membrane, Membrane reactor, NaA synthesis",

author = "Liu, {B. S.} and Gao, {L. Z.} and Au, {C. T.}",

note = "Funding Information: This work was supported by the Research Grants Council of the Hong Kong Special Administration Region, China (Project no. HKBU 2053/98 P).",

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AU - Liu, B. S.

AU - Gao, L. Z.

AU - Au, C. T.

N1 - Funding Information: This work was supported by the Research Grants Council of the Hong Kong Special Administration Region, China (Project no. HKBU 2053/98 P).

PY - 2002/8/30

Y1 - 2002/8/30

N2 - The NaA and La2NiO4/NaA composite membranes were prepared by means of in situ hydrothermal synthesis. The structure, morphology, separation performance, as well as chemical state and surface composition of a La2NiO4/NaA composite membrane were investigated by means of techniques, such as XRD, SEM-EDX, GC, TPD, XPS, and XAES. When the membrane was applied in a membrane reactor for CH4/CO2 reforming, CH4 and CO2 conversions, and CO and H2 selectivities were significantly higher than the values observed over a traditional fixed-bed reactor. We studied the effects of the flow rate of sweeping N2, gas hour space velocity (GHSV), and reaction temperature on the conversions of CH4 and CO2. The carbon deposited on the surface of membrane was studied by means of the TPO-MS technique.

AB - The NaA and La2NiO4/NaA composite membranes were prepared by means of in situ hydrothermal synthesis. The structure, morphology, separation performance, as well as chemical state and surface composition of a La2NiO4/NaA composite membrane were investigated by means of techniques, such as XRD, SEM-EDX, GC, TPD, XPS, and XAES. When the membrane was applied in a membrane reactor for CH4/CO2 reforming, CH4 and CO2 conversions, and CO and H2 selectivities were significantly higher than the values observed over a traditional fixed-bed reactor. We studied the effects of the flow rate of sweeping N2, gas hour space velocity (GHSV), and reaction temperature on the conversions of CH4 and CO2. The carbon deposited on the surface of membrane was studied by means of the TPO-MS technique.

KW - CH/CO reforming

KW - LaNiO/NaA composite membrane

KW - Membrane reactor

KW - NaA synthesis

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