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加压快速热解液相炭化焦的物理性质及CO2气化活性
引用本文:吴诗勇,吴幼青,顾菁,张晓,高晋生.加压快速热解液相炭化焦的物理性质及CO2气化活性[J].医学教育探索,2009(3):368-372.
作者姓名:吴诗勇  吴幼青  顾菁  张晓  高晋生
作者单位:华东理工大学能源化工系;华东理工大学能源化工系;华东理工大学能源化工系;华东理工大学能源化工系;华东理工大学能源化工系
基金项目:国家重点基础研究发展规划(973计划,2004CB217704);华东理工大学优秀青年教师科研专项基金项目(YB0157108)
摘    要:以一种液相炭化焦(石油焦)为原料,在快速升温和热解压力为常压至3 MPa下制备了热解焦,主要考察了热解停留时间和热解压力对其失重、BET表面积和CO2气化活性的影响。结果表明:在加压快速热解条件下,随热解停留时间增加,液相炭化焦的失重率增加,BET表面积呈下降趋势,气化活性略微减小;随热解压力增加,液相炭化焦的失重率增加,BET表面积先增加后下降,气化活性略微变化,甚至基本不变;常压条件下液相炭化焦的气化活性明显高于加压条件下的气化活性。

关 键 词:液相炭化焦    快速升温    加压热解    BET表面积    气化活性
收稿时间:2008/3/15 0:00:00

Physical Properties and CO2 Gasification Activity of Liquid Phase Carbonization Cokes at Pressurized Pyrolysis with Rapid Heating
Abstract:Pyrolysis chars were prepared at rapid heating and pyrolysis pressure from atmospheric pressure to 3 MPa using a liquid phase carbonization coke (petroleum coke) as raw materials.The effects of thermal history and pyrolysis pressure on the weight loss, BET surface area and CO2 gasification activity of petroleum coke were investigated. The following results were obtained at the rapid heating and pressurized pyrolysis: with the increase of the thermal history, the weight loss of liquid phase carbonization coke increased, its BET surface area presented a descendent trend, and its gasification activity decreased slightly; with the increase of the pyrolysis pressure, the weight loss of liquid phase carbonization coke increased, its BET surface area initially increased and then decreased, and its gasification activity was changed slightly and even unchanged. Besides, the gasification activity of liquid phase carbonization coke at the pyrolysis of atmospheric pressure was distinctly higher than that at the pressurized activity.
Keywords:liquid phase carbonization coke  rapid heating  pressurized pyrolysis  BET surface area  gasification activity
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