Co-Gasification of Oil Sand Coke with Coal
Gasification of oil sand delayed coke with subbituminous and lignite coals was performed in an atmospheric entrained flow gasifier using steam and oxygen as gasifying agents.The underlying objective of this work was to assess the effects of the operating variables (i.e.temperature,oxygen and steam concentrations) and coal/coke blending ratio on gasification performance in a high-temperature in order to find the possible synergies in cogasification of the fuels.Experiments were conducted at 1400°C,using steam and oxygen to carbon weight ratios of (0.361.08) and (0.07-0.2),respectively in N2 carrier gas.The coke to coal weight ratios of 1/3,1/2,and 2/3 were used for the blending tests.Particle size of 53-90 micron with d50=75 micron were used.In terms of char reactivity,blending did not show any significant positive effect.Slight deviations from linear additive line are in the order of experiment error.Gasification efficiency was also following a linear additive trend once more pointing out the lack of synergy in entrained flow gasification systems.The results however,showed that higher coke content clearly favored the H2 production.
gasification coal oil sand coke fluid coke entrained flow gasifier response surface methodology
Farshid Vejahati Rajender Gupta
Department of Chemical & Materials Engineering,University of Alberta,7-042 ECERF Bid.,Edmonton,Alberta,Canada T6G 2V4
国际会议
The 7th International Symposium on Coal Combustion(第七届国际煤燃烧学术会议)
哈尔滨
英文
608-612
2011-07-19（万方平台首次上网日期，不代表论文的发表时间）