Progress and prospect of research on catalytic gasification of coal

doi:10.16085/j.issn.1000-6613.2015.10.021

Abstract

Abstract: Coal catalytic gasification is valued highly because it can reduce the operation difficulties and convert coal to target products. The effect, merits, demerits and mechanism of alkali, alkaline earth and transition metals during the coal catalytic gasification, are reviewed. Influence factors on catalytic gasification, such as coal rank, minerals, gasification conditions, addition mode and amount of catalyst, are analyzed. The current industrialization process, including the process of synthetic natural gas and hydrogen production, are illustrated. The difficulty of current research is to balance the efficiency and the economy of catalysts. The research focus of coal gasification would be developing economical and recyclable catalysts.

Key words: coal combustion, catalyst, gasification, influence factor, industralization

摘要： 煤催化气化由于可以大幅度降低操作条件,实现定向转化,目前正受到国内外重视。本文综述了碱金属、碱土金属、过渡金属催化剂与复合催化剂在煤催化气化过程中的活性、优缺点、反应机理等。对影响煤催化气化的各类因素如煤阶、矿物质、催化剂添加方式、添加量、气化条件等进行了分析。介绍了当前催化气化工业化进程以及合成天然气甲烷和催化气化制氢两种工艺。当前研究的难点是兼顾催化剂的效率与经济性,煤催化气化未来将以开发高活性、易回收且廉价的催化剂为研究方向。

关键词: 煤燃烧, 催化剂, 气化, 影响因素, 工业化

CLC Number:

TQ546

FANG Mengxiang, LI Wenbang, CEN Jianmeng, WANG Qinhui, LUO Zhongyang. Progress and prospect of research on catalytic gasification of coal[J]. Chemical Industry and Engineering Progree, 2015, 34(10): 3656-3664.

方梦祥, 厉文榜, 岑建孟, 王勤辉, 骆仲泱. 煤催化气化技术的研究现状与展望[J]. 化工进展, 2015, 34(10): 3656-3664.

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