Study on Pyrolysis and Environmental Protection of Corn Stalk in Thermal Expansion Cracking Agent

International Conference on Manufacturing Technology, Materials and Chemical Engineering

机械制造;材料科学;化学工业

Liu, Xiaobo^1 ; Liu, Jiping^1 ; Li, Shukui^1 ; Yang, Weiwei^1 ; Du, Junyi^1

School of Materials Science and Engineering, Beijing Institute of Technology, Beijing

100081, China^1

关键词: Calcium peroxides;    Coal gangues;    Combustion pro-cess;    Corn stalk;    Elemental sulfur;    High-temperature combustion;    Pyrolysis process;    Transformation mechanisms;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/392/4/042010/pdf
DOI  :  10.1088/1757-899X/392/4/042010

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The thermal expansion cracking agent is a new type of cracking stone, which is made of straw, coal gangue, carbon black, calcium peroxide and so on. After mixing, it is made by crushing, kneading, granulation and drying. Among them, the environmental protection of straw in the application of thermal expansion cracking agent cannot be ignored. This article discusses the pyrolysis process of straw in the thermal expansion rip cracking agent and the migration and transformation mechanism of pollutant elemental sulfur. The results show that Al2O3 can be used as the main component of coal gangue in the combustion process of thermal expansion cracking agent. Al2O3 can prevent sulfur in the straw from decomposition and discharge into the air with high-temperature combustion of thermal expansion cracking agent, thus ensuring the use of thermal expansion cracking agent is environmentally friendly.