Effect of heat treatment on structure and gasification reactivity of petroleum coke

详细信息    查看全文

• 作者：Chao Li ; Xin Liu ; Zhijie Zhou ; Zhenghua Dai…
• 关键词：Petroleum coke ; Heat treatment ; Gasification reactivity ; Graphitization
• 刊名：International Journal of Coal Science & Technology
• 出版年：2016
• 出版时间：March 2016
• 年：2016
• 卷：3
• 期：1
• 页码：53-61
• 全文大小：1,205 KB
• 刊物类别：Fossil Fuels (incl. Carbon Capture); Geotechnical Engineering & Applied Earth Sciences; Mineralogy;
• 刊物主题：Fossil Fuels (incl. Carbon Capture); Geotechnical Engineering & Applied Earth Sciences; Mineralogy;
• 出版者：China Coal Society
• ISSN：2198-7823

文摘

Petroleum coke was thermally treated on a fixed bed reactor in a temperature range of 1173–1673 K. The changes of the elemental composition and crystalline structure of petroleum coke, with heat treatments as well as the gasification reactivity of the heat-treated petroleum cokes were investigated. The results showed that the petroleum coke was carbonized and graphitized to a higher degree with increasing heating temperature, while the gasification reactivity decreased. The treatment at temperatures of 1173 and 1473 K significantly enlarged the specific surface area and the pore volume of petroleum coke. Both the specific surface area and the pore volume decreased at 1673 K. An empirical normal distribution function model (NDFM) was found to fit the gasification rates of petroleum coke well. The correlation coefficient of petroleum coke by normal distribution function model at different heat treatment temperatures is between 0.93 and 0.95.