A study of the co2-o2 coal gasification process

Akram M. Alfantazi; C. A. Pickles

doi:10.1080/09603409.1992.11689398

A study of the co₂-o₂ coal gasification process

Akram M. Alfantazi, C. A. Pickles

Chemical and Petroleum Engineering

Queen’s University

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

In this work, a fixed-bed gasifier was used to study the effects of some important parameters on both the temperature and the chemical composition of the off-gas produced in a CO₂-O₂ coal gasification process. Also, the effect of these parameters on the gasification temperature was determined. The parameters tested included input-gas composition, coal rank, coal size and coal-bed depth. In addition, the reactivity of a sub-bituminous coal was investigated under different gasification temperatures. Gas chromatography was employed to analyse the chemical composition of the gases. The results indicated that the off-gas temperature increased with coal rank and decreased with both the CO₂-O₂ ratio and the coal-bed depth. Generally, the amount of H₂ and CO in the off-gas decreased with both the coal rank and the CO₂-O₂ ratio and increased with coal-bed depth. Coal size did not have a significant effect on the gasification process.

Original language	British English
Pages (from-to)	51-59
Number of pages	9
Journal	Materials at High Temperatures
Volume	10
Issue number	1
DOIs	https://doi.org/10.1080/09603409.1992.11689398
State	Published - Feb 1992

Keywords

Boudouard reaction
Carbon dioxide
Coal
Coal gasification
Fixed bed
Gas chromatography
Oxygen

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10.1080/09603409.1992.11689398

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title = "A study of the co2-o2 coal gasification process",

abstract = "In this work, a fixed-bed gasifier was used to study the effects of some important parameters on both the temperature and the chemical composition of the off-gas produced in a CO2-O2 coal gasification process. Also, the effect of these parameters on the gasification temperature was determined. The parameters tested included input-gas composition, coal rank, coal size and coal-bed depth. In addition, the reactivity of a sub-bituminous coal was investigated under different gasification temperatures. Gas chromatography was employed to analyse the chemical composition of the gases. The results indicated that the off-gas temperature increased with coal rank and decreased with both the CO2-O2 ratio and the coal-bed depth. Generally, the amount of H2 and CO in the off-gas decreased with both the coal rank and the CO2-O2 ratio and increased with coal-bed depth. Coal size did not have a significant effect on the gasification process.",

keywords = "Boudouard reaction, Carbon dioxide, Coal, Coal gasification, Fixed bed, Gas chromatography, Oxygen",

author = "Alfantazi, {Akram M.} and Pickles, {C. A.}",

note = "Funding Information: The authors thank the Centre for Chemical Process Metallurgy, the Ontario University Research Incentive Fund and CANMET. D. Smith assisted with the chemical analysis. Financial support to one of the authors (A.A) was provided by the Atomic Energy Commission of Libya and NSERC.",

year = "1992",

month = feb,

doi = "10.1080/09603409.1992.11689398",

language = "British English",

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pages = "51--59",

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AU - Pickles, C. A.

N1 - Funding Information: The authors thank the Centre for Chemical Process Metallurgy, the Ontario University Research Incentive Fund and CANMET. D. Smith assisted with the chemical analysis. Financial support to one of the authors (A.A) was provided by the Atomic Energy Commission of Libya and NSERC.

PY - 1992/2

Y1 - 1992/2

N2 - In this work, a fixed-bed gasifier was used to study the effects of some important parameters on both the temperature and the chemical composition of the off-gas produced in a CO2-O2 coal gasification process. Also, the effect of these parameters on the gasification temperature was determined. The parameters tested included input-gas composition, coal rank, coal size and coal-bed depth. In addition, the reactivity of a sub-bituminous coal was investigated under different gasification temperatures. Gas chromatography was employed to analyse the chemical composition of the gases. The results indicated that the off-gas temperature increased with coal rank and decreased with both the CO2-O2 ratio and the coal-bed depth. Generally, the amount of H2 and CO in the off-gas decreased with both the coal rank and the CO2-O2 ratio and increased with coal-bed depth. Coal size did not have a significant effect on the gasification process.

AB - In this work, a fixed-bed gasifier was used to study the effects of some important parameters on both the temperature and the chemical composition of the off-gas produced in a CO2-O2 coal gasification process. Also, the effect of these parameters on the gasification temperature was determined. The parameters tested included input-gas composition, coal rank, coal size and coal-bed depth. In addition, the reactivity of a sub-bituminous coal was investigated under different gasification temperatures. Gas chromatography was employed to analyse the chemical composition of the gases. The results indicated that the off-gas temperature increased with coal rank and decreased with both the CO2-O2 ratio and the coal-bed depth. Generally, the amount of H2 and CO in the off-gas decreased with both the coal rank and the CO2-O2 ratio and increased with coal-bed depth. Coal size did not have a significant effect on the gasification process.

KW - Boudouard reaction

KW - Carbon dioxide

KW - Coal

KW - Coal gasification

KW - Fixed bed

KW - Gas chromatography

KW - Oxygen

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JO - Materials at High Temperatures

JF - Materials at High Temperatures

IS - 1

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A study of the co₂-o₂ coal gasification process

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Keywords

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