Kinetics of steam and CO<sub>2</sub> gasification with high ash fusion temperature coal char under elevated pressure

An, Haiquan; Yu, Jiang; Jiang, Yanchi; Fan, Jie; Zhang, Zhongxiao

doi:10.1080/15567036.2016.1261207

Cited by 6 publications

(2 citation statements)

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“…Thermogravimetric analysis (TGA) helps in estimating the gasification reactivity and evaluating if the reactants are suitable for gasification technology 9,10 . Some studies on DCLR gasification reactivity have been published.…”

Section: Introductionmentioning

confidence: 99%

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Kinetic study of CO ₂ gasification on coal char and extraction residue char from direct coal liquefaction

Liu

Fang

et al. 2020

Int J Energy Res

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Summary Extraction residue (ER) is, in this study, considered as an insoluble portion derived from a novel extraction process with direct coal liquefaction residue, which is the byproduct from 1000 kton/y direct coal liquefaction and oil production process in Ordos, China. ER mostly consists of unreacted coal and minerals, spent catalyst, and solvent. It is considered as a hazardous waste in China. Gasification is a promising way to employ ER, as the carbon resource contained in it could be adequately utilized, so strongly reducing the environmental impact of this material. In this paper, a kinetic study is carried out concerning CO2 gasification (in thermobalance) of ER char, coal char, and their blends. The results show that, at temperatures ranging from 1123 to 1323 K, the reactivity of ER char is much larger than that of coal char, and the reactivity of ER/coal char blends increases when the ER fraction increases, consistently resulting in between the reactivities shown by ER char and coal char alone. The partial pressure of CO2 promotes the reactivity of all samples. BET surface area resulted three times larger for ER char vs coal char, while pore surface area and pore volume were four times larger. Moreover, the relevant parameters of the random pore model for CO2 gasification of ER char, coal char, and their blend #2 (with 20% ER) were obtained; the activation energy resulted 210.6, 240.5, and 232.8 kJ/mol, and the reaction order 0.30, 0.45, and 0.40, respectively.

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Section: Introductionmentioning

confidence: 99%

“…8 Thermogravimetric analysis (TGA) helps in estimating the gasification reactivity and evaluating if the reactants are suitable for gasification technology. 9,10 Some studies on DCLR gasification reactivity have been published. Liu et al 11 conducted co-gasification of DCLR and petroleum coke in carbon dioxide by thermogravimetric analysis.…”

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Kinetic study of CO ₂ gasification on coal char and extraction residue char from direct coal liquefaction

Liu

Fang

et al. 2020

Int J Energy Res

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Experimental Study of the Flat-Flame Pulverized Coal Gasification Technology

Liu

Fang

et al. 2021

Clean Coal and Sustainable Energy

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CO2 char gasification: A systematic review from 2014 to 2020

Roncancio

Gore

2021

Energy Conversion and Management: X

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Kinetics of steam and CO₂ gasification with high ash fusion temperature coal char under elevated pressure

Cited by 6 publications

References 20 publications

Kinetic study of CO ₂ gasification on coal char and extraction residue char from direct coal liquefaction

Kinetic study of CO ₂ gasification on coal char and extraction residue char from direct coal liquefaction

Experimental Study of the Flat-Flame Pulverized Coal Gasification Technology

CO2 char gasification: A systematic review from 2014 to 2020

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Kinetics of steam and CO2 gasification with high ash fusion temperature coal char under elevated pressure

Cited by 6 publications

References 20 publications

Kinetic study of CO 2 gasification on coal char and extraction residue char from direct coal liquefaction

Kinetic study of CO 2 gasification on coal char and extraction residue char from direct coal liquefaction

Experimental Study of the Flat-Flame Pulverized Coal Gasification Technology

CO2 char gasification: A systematic review from 2014 to 2020

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Product

Resources

About

Kinetics of steam and CO₂ gasification with high ash fusion temperature coal char under elevated pressure

Kinetic study of CO ₂ gasification on coal char and extraction residue char from direct coal liquefaction

Kinetic study of CO ₂ gasification on coal char and extraction residue char from direct coal liquefaction