THERMAL SCIENCE

International Scientific Journal

Authors of this Paper

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Qigen Deng

,

Jingping Yin

,

Tao Zhang

,

Hao Wang

GAS-PRODUCING CHARACTERISTICS OF COALS CONTAINING HYDROGEN SULFIDE BY THE THERMOCHEMICAL SULFATE REDUCTION

ABSTRACT
It is generally considered that the thermochemical sulfate reduction is one of the main origins of high content of hydrogen sulfide (H2S). Thermochemical sulfate reduction simulation experiments at different temperatures ranging from 200°C to 600°C were carried out to study the output of gaseous products, which include CO2, CH4, H2S, and heavy hydrocarbon (C2-6). Thermochemical sulfate reduction can promote the formation of CH4 and H2S, and can preferentially consume heavy hydrocarbons. The CH4 is difficult to participate in the reaction of formation H2S. The concentrations of CO2 and hydrogen are closely related to the evolution characteristics of H2S. The intermediate sulfur-containing products from thermochemical reaction and thermal cracking of coals can promote the progress of thermochemical sulfate reduction and possible formation of H2S.
KEYWORDS
coal, thermochemical sulfate reduction, simulation experiment, H2S, gas products, evolution characteristic
PAPER SUBMITTED: 2019-04-24
PAPER REVISED: 2019-09-21
PAPER ACCEPTED: 2019-09-21
PUBLISHED ONLINE: 2020-06-21
DOI REFERENCE: https://doi.org/10.2298/TSCI2004475D
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2020, VOLUME 24, ISSUE Issue 4, PAGES [2475 - 2483]
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Gas-producing characteristics of coals containing hydrogen sulfide by the thermochemical sulfate reduction

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