神府煤Ni-Mo-S/Al<sub>2</sub>O<sub>3</sub>催化液化动力学研究

周艳; 水恒福; 雷智平; 任世彪; 王知彩; 潘春秀

神府煤Ni-Mo-S/Al₂O₃催化液化动力学研究

安徽工业大学化学与化工学院煤洁净转化与综合利用安徽省重点实验室, 安徽马鞍山 243002

基金项目: 国家重点基础研究发展规划（973计划，2011CB201302）；国家自然科学基金（U1261208，21176001，51174254，21306001）；科技部中日国际合作项目（2013DFG60060）。

详细信息

通讯作者:
水恒福，Tel/Fax：0555-2311367，E-mail：shhf@ahut.edu.cn。

中图分类号: TQ529
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- 文章访问数: 653
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- 被引次数: 0
出版历程
- 收稿日期: 2014-04-04
- 修回日期: 2014-05-23
- 刊出日期: 2014-07-30

A kinetic study on the liquefaction of Shenfu coal catalyzed by Ni-Mo-S/Al₂O₃

School of Chemistry & Chemical Engineering, Anhui Key Laboratory of Coal Clean Conversion & Utilization, Anhui University of Technology, Ma'anshan 243002, China

摘要

摘要: 对煤液化产物进行溶剂的分级处理，采用集总的方法得到Ni-Mo-S/Al₂O₃催化神府煤液化动力学模型。该模型包括了煤、前沥青烯、沥青烯和油气之间的相互转化，考虑了连串反应、平行反应和逆向转化以及结焦反应的影响，可以较好地模拟Ni-Mo-S/Al₂O₃催化神府煤液化过程。基于建立的Ni-Mo-S/Al₂O₃催化神府煤的动力学模型，求得神府煤催化液化的表观活化能为125~244 kJ/mol。通过对计算得到的模型参数分析表明，在高温阶段存在明显的油气向沥青烯以及沥青烯向前沥青烯的逆向转化。当温度高于420℃时，出现前沥青烯和沥青烯结焦反应现象。
- 神府煤 /
- 催化液化 /
- 动力学模型 /
- Ni-Mo-S/Al₂O₃催化剂
Abstract: A kinetic model for Shenfu (SF) coal liquefaction catalyzed by Ni-Mo-S/Al₂O₃ was built by using lumped kinetic method, where the liquefaction products were fractioned by solvents. The model has considered the mutual transformations among coal, preasphaltene (PA), asphaltene (AS) and oil in the process, in which a series of consecutive, parallel, regressive and coking reactions were integrated. The results showed that the process of SF coal liquefaction catalyzed by Ni-Mo-S/Al₂O₃ can be well simulated by the model; based on this kinetic model, the activation energy of SF coal liquefaction is 125~244 kJ/mol. There exist obviously regressive reactions of oil and gas to AS and AS to PA at high liquefaction temperature. Moreover, the coking reactions of AS and PA to coke may take place when the liquefaction temperature exceeds 420℃.
- Shenfu coal /
- catalytic liquefaction /
- kinetic model /
- Ni-Mo-S/Al₂O₃ catalyst

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