文献类型：期刊文献

英文题名：Effect of Microwave Treatment on Structural Changes and Gasification Reactivity of Petroleum Coke

作者：Liu, Xin[1];Zhou, Zhi-jie[1];Zhang, Bao-shen[1];Chen, Lu[1];Wang, Fu-chen[1]

机构：[1]E China Univ Sci & Technol, Key Lab Coal Gasificat, Minist Educ, Shanghai 200237, Peoples R China

年份：2011

卷号：50

期号：15

起止页码：9063

外文期刊名：INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH

收录：;EI(收录号：20113114198454);WOS:【SCI-EXPANDED(收录号:WOS:000293196700029)】；

基金：The research is supported by the National Key State Basic Research Development Program of China (973 Program, 2010 CB 227000), the Program for Changjiang Scholars and Innovative Research Team in University (PCSIRT-IRT 0620), and the Shanghai Outstanding Academic Leaders Subsidy Scheme (08 XD 1401300). X.L. would like also to thank Fu Wang for conducting experiments.

语种：英文

外文关键词：Light absorption - Atmospheric pressure - Irradiation - Petroleum coke - Crystalline materials - Gasification - Heat treatment - Thermogravimetric analysis - Atmospheric temperature - Microwave irradiation

摘要：The gasification reactivity of petroleum coke, which was treated by microwave at different times, powers, and temperatures, was investigated by using thermogravimetric analysis (TGA) at 1473 K at atmospheric pressure. The results showed that the gasification rate of petroleum coke increased with the increase of conversion and then decreased after reaching its maximum; the conversion corresponding to the maximal gasification rate is about x = 0.1. The gasification rate of petroleum coke increased with the increase of microwave irradiation time and irradiation power, but as the irradiation temperature increased, the gasification rate of petroleum coke first increased and then decreased. Petroleum coke before and after microwave treatment was analyzed by X-ray diffraction (XRD), infrared absorption spectroscopy (IR), and the accelerated surface area and porosimetry system (ASAP). The results showed that the crystalline structure of petroleum coke becomes amorphous and the BET surface area and pore volume become larger with increase of microwave irradiation time and irradiation power. As the irradiation temperature increased, the crystalline ordering degree of petroleum coke became weakened and then strengthened and the BET surface area and pore volume increased and then decreased, which agrees with the change in the petroleum coke gasification reaction rate. Results show that microwave treatment is an effective way to change the structure of petroleum coke and promote its gasification reactivity.