山西地区1/3焦煤显微组分的热解特性研究

Study on pyrolysis characteristics of 1/3 coking coal macerals in Shanxi

范文生 ¹党帅 ¹韩新杰 ¹田国亮 ¹侯瑞芳¹

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作者信息

1. 山西焦煤集团有限责任公司,太原 030024;山西焦煤集团有限责任公司炼焦煤清洁利用实验室,太原 030024
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摘要

利用密度梯度离心法对山西3种1/3焦煤显微组分进行分离富集,同时研究其各显微组分热解特征.结果表明:随着热解温度的升高,显微组分在350～600℃均出现明显的失重现象.热重(TG)和微商热重(DTG)曲线表明,惰质组与镜质组相比,有较高的剧烈热解开始温度、最大热解速率峰温和最大热解速率,原煤的热解参数介于镜质组与惰质组之间.热解过程中镜质组的质量损失最大,其次是原煤,惰质组的质量损失最小.

Abstract

The density gradient centrifugation method is used to separate and enrich three types of 1/3 coking coal macerals from Shanxi,and the pyrolysis characteristics of each macerals are studied.The results show that:with the increase of pyrolysis temperature,the maceral shows obvious weight loss at 350～600℃.The thermogravimetry(TG)and derivative thermogravimetry(DTG)curves indicate that the inertinite has intense pyrolysis starting temperature,maximum pyrolysis rate peak,and maximum pyrolysis rate compared to the vitrinite,the pyrolysis parameters of raw coal are between vitrinite and inertinite.The mass loss of vitrinite is the largest during pyrolysis,followed by raw coal,and the mass loss of inertinite is the least.

关键词

1/3焦煤/显微组分/热重/失重率

Key words

1/3 coking coal/Maceral/Thermogravimetric/Weight loss ratio

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基金项目

山西省科技重大专项(20181102020)

出版年

2024

燃料与化工

中冶焦耐工程技术有限公司

燃料与化工

影响因子：0.284

ISSN：1001-3709

参考文献量8

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