STUDY ON CALORIFIC VALUE OF SEMI-COKE AND DESULFURIZATION EFFECT DURING PYROLYSIS OF BITUMINOUS COAL

被引：0

作者：

Chen Jihao ^{[1
,2
]}

Li Yue ^{[1
,2
]}

Chen Xinjuan ^{[1
,2
]}

Zhang Lei ^{[3
]}

Yang Dongfeng ^{[1
,2
]}

机构：

[1] Shaanxi Coal Geol Lab Co Ltd, Xian 710054, Peoples R China

[2] Minist Nat Resources, Key Lab Coal Resources Explorat & Comprehens Util, Xian 710021, Peoples R China

[3] Xian Univ Technol, Xian 710048, Peoples R China

来源：

FRESENIUS ENVIRONMENTAL BULLETIN | 2021年 / 30卷 / 05期

基金：

中国国家自然科学基金;

关键词：

Semi-coke; desulfurization; calorific value; pyrolysis;

D O I：

暂无

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Taking bituminous coal with medium sulfur content as experimental coal sample, the effect of desulfurization, calorific value and volatile matter were studied. Pyrolysis of coal samples was conducted in a high temperature furnace with different pyrolysis time, different temperature and different mass. The effects of pyrolysis conditions on desulfurization efficiency, semicoke volatilization and calorific value were investigated. The results showed that:(1) Pyrolysis had the effect of desulfurization, which was affected by pyrolysis temperature, pyrolysis time and pyrolysis quality; (2) The desulfurization efficiency of coal pyrolysis reached 29.91% in 16 min, the desulfurization efficiency was good, and the calorific value of semicoke was 22.99kJ/g; (3) In the temperature range of 450 degrees C to 650 degrees C, the desulfurization efficiency had little change, at this time, semicoke had the effect of sulfur fixation; (4) The maximum specific surface area of semicoke was 102.78m(2)/g at 650 degrees C and the reduction of C-S and S-O functional groups in the FTIR spectrum of semicoke result in desulfurization during pyrolysis.

引用

页码：4756 / 4762

页数：7

共 14 条

[1]

Cai C.C., 2018, COAL PREPARATION TEC, P56

[2] Sulfur and Chlorine Gas Species Formation during Coal Pyrolysis in Nitrogen and Carbon Dioxide Atmosphere [J].