洁净煤技术

2020, v.26;No.125(01) 110-120

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煤间接液化合成油技术研究现状及展望
Research status and prospect of coal indirect liquefaction synthetic oil technology

王学云;胡发亭;王光耀;
WANG Xueyun;HU Fating;WANG Guangyao;Coal Chemistry Branch of China Coal Research Institute;State Key Laboratory of Coal Mining and Clean Utilization;National Energy Technology and Equipment Laboratory of Coal Utilization and Emission Control;

摘要(Abstract):

发展煤炭间接液化技术是缓解我国油品短缺和促进煤炭清洁利用的有效途径。笔者综述了早期经典的费托合成机理如碳化物机理、CO插入机理、中间体缩聚机理,以及近期提出的C2活性物种机理、稀烃再吸附的碳化物理论、网络反应机理等,并指出各机理的合理性和局限性;论述了费托合成反应动力学模型如CO消耗速率动力学模型和详细动力学模型的特点和研究进展。CO消耗动力学模型不考虑碳链增长过程,可很好地预测CO转化率。详细动力学模型含有反应物消耗速率和产物分布信息,其可靠性依据费托合成反应机理。综述了工业上常用的铁基催化剂和钴基催化剂的特点以及在相变、催化机理等方面的研究进展,讨论了新型费托合成催化剂如复合型催化剂、多元金属催化剂和新型载体催化剂的研发进展;介绍了国内外煤间接液化工艺的发展历程,分析了工业化应用中存在的问题和改进方向,重点论述了我国山西煤化所和兖矿集团开发的煤间接液化工艺的特点和工艺流程。最后对未来费托合成反应机理、反应动力学、催化剂及煤间接液化工艺的研究重点和发展方向进行了展望。
The development of indirect coal liquefaction technology is an effective way to alleviate the shortage of oil and promote the clean utilization of coal. In this paper,the early classical F-T synthesis reaction mechanisms,such as carbide mechanism,CO insertion mechanism,intermediate polycondensation mechanism,and recent proposed C2 active species mechanism,carbide theory of resorption of dilute hydrocarbons,network reaction mechanism and so on were introduced. The rationality and limitation of these reaction mechanisms were pointed out. The characteristics and research progress of F-T synthetic reaction kinetic model such as CO consumption rate kinetic model and detailed kinetic model were discussed. The kinetics model of CO consumption can predict the conversion of CO well without considering the growth process of carbon chain. The detailed dynamic model contains the reactant consumption rate and product distribution information,but its reliability is based on the F-T synthesis reaction mechanism. The characteristics of iron-based catalysts and cobalt-based catalysts in industry as well as the research progress in phase transition and catalytic mechanism were reviewed. The research and development progress of new catalysts such as composite catalysts,multi-metal catalysts and new support catalysts were discussed. In this paper,the development course of coal indirect liquefaction process at home and abroad was introduced. The problems and improvement measures in industrial application were analyzed. The characteristics and technological process of indirect coal liquefaction developed by Shanxi Coal Chemical Institute and Yankuang Mining Group in China were emphatically discussed. The research focus and development direction of F-t synthesis reaction mechanism,reaction kinetics,catalyst and coal indirect liquefaction process in the future were discussed and prospected.

关键词(KeyWords): 煤间接液化;费托合成;反应机理;反应动力学;催化剂
indirect coal liquefaction;Fischer-Tropsch synthesis;reaction mechanism;reaction kinetics;catalyst

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基金项目(Foundation): 国家重点研发计划资助项目(2016YFB0600303)

作者(Author): 王学云;胡发亭;王光耀;
WANG Xueyun;HU Fating;WANG Guangyao;Coal Chemistry Branch of China Coal Research Institute;State Key Laboratory of Coal Mining and Clean Utilization;National Energy Technology and Equipment Laboratory of Coal Utilization and Emission Control;

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