A Normal Distribution Model for Reaction Kinetic of Shenfu char gasified by CO2
CO2-gasification behaviors of Shenfu char from China were investigated by Thermogravimetric Analysis (TGA) within the temperature range of 1173-1323 K, and the pressure from 0.1 MPa to 3 MPa. Effects of the temperature and pressure on the CO2 gasification of Shenfu char and the relationship between the gasification rate and reaction time were analyzed. Results show that the reaction rate submitted normal distribution with reaction time. A normal distribution model was proposed to fit the kinetics data. Compared with the random pore model, results show that the normal distribution model can be used to describe the gasification rate changing with reaction time at different temperature and pressure. rm ,r0 calculated by normal distribution model are ruled by Arrenius law. In the investigated range, temperature at 1173-1323 K,pressure at 0.1-3 MPa, activation energy of Shenfu char-CO2 gasification is 150-185 kJ/mol, which is in accordance with reported data.
gasification kinetics random pore model normal distribution model
Shenqi Xu Zhijie Zhou Xia Liu Guangsuo Yu Zunhong Yu
Key Lab of Coal Gasification, Ministry of Education, East China University of Science & Technology ECUST,Shanghai 200237, China
国际会议
The 12th Asian Pacific Confederation of Chemical Engineering Congress(第十二届亚太化工联盟大会暨化工展览会)
大连
英文
2008-08-04（万方平台首次上网日期，不代表论文的发表时间）