Lan X.-Z.,Xi'an University of Architecture and Technology |
Luo W.-J.,Xi'an University of Architecture and Technology |
Luo W.-J.,Shaanxi Coal and Chemical Industry Group Shaanxi Coke Chemical Co. |
Song Y.-H.,Xi'an University of Architecture and Technology |
And 2 more authors.
Huaxue Gongcheng/Chemical Engineering (China) | Year: 2015
By means of gas chromatography and trace sulfur analyzer, the gaseous composition and sulfur release properties of oil shale catalytic pyrolysis on different catalysts were investigated in aluminum retort reactor. The results indicate that catalytic pyrolysis reduces the yield of gaseous products, and the effects of different catalysts on the gaseous products were different. Nickel trioxide and cobalt naphthenate increase the release of hydrogen, but reduce the release of methane; molecular sieve 13X advances the release of hydrocarbons, and yet nickel trioxide and activated clay reduce hydrocarbons release. All catalysts enhance the release of CO2, while have little effect on the release of CO. Compared with the conventional pyrolysis, the catalytic pyrolysis promotes sulfur release in oil shale carbonization gas, of which bentonite and molybdenum disulfide play a greater role, and the total sulfur releases 4.58 times and 3.95 times higher than that of conventional pyrolysis; activated clay and cobalt naphthenate are increased by 64.01% and 32.95%. ©, 2015, Editorial Office of Chemical Engineering (China). All right reserved.