首页|Thermodynamic system analysis of calcium carbide based on incomplete combustion oxygen-thermal method

Thermodynamic system analysis of calcium carbide based on incomplete combustion oxygen-thermal method

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Research of calcium carbide production is of great importance to the utilizationof coal. In order to improve productivity and reduce energy consumption.The thermal system in an oxygen thermal process (OTM) calciumcarbide furnace was analyzed. This work established a thermodynamicmodel to analyze the effects of material temperature, ash yield, fixed carboncontent and heat loss on calcium carbide purity and total coke consumption.The results showed that the total coke consumption for the synthesis of 1 kgof calcium carbide decreased, the purity of calcium carbide increased, andthe effect of heat loss decreased as the temperature of the material enteringthe reaction area increased. And the effect of coke temperature was muchmore important than the CaO temperature. Ash yield in the coke should notexceed 20%, otherwise, the purity of calcium carbide produced can’t satisfythe industrial requirement (acetylene productivity is 260 L/kg). In addition,the temperature of the material must be between 1151 ~ 1862℃ to meet therequirements of high energy utilization.

Heat transferThermodynamicsmodeloxygen thermal methodcalcium carbidepreheating temperature

Weihua Liu、Bo Wei、Tao Yang、Jianjiang Wang、Maierhaba Abudoureheman、Jinrong Ma、Jianfei Ma、Feng Wang、Xian Li

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State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, School of Chemical Engineering,Xinjiang University, Urumqi, China,Key Laboratory of Coal Clean Conversion & Chemical Engineering Process, Xinjiang Uygur Autonomous Region, School of Chemical Engineering, Xinjiang University, Urumqi, China

Xinye Research Institute, Xinjiang Xinye Energy and Chemical Co. Ltd, Wujiaqu, China

State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan, China

2024

10.1080/15567036.2023.2277360

Energy sources, Part A. Recovery, utilization, and environmental effects

Energy sources, Part A. Recovery, utilization, and environmental effects

ISSN：1556-7036
年,卷(期)：2024.46(1)
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