煤基大宗化学品市场及产业发展趋势

doi:10.16085/j.issn.1000-6613.2020-0841

摘要/Abstract

摘要：

针对国内大宗化学品的供需平衡、煤基技术现状及发展趋势进行了系统性的研究与分析。文章指出，从产量与需求数据可以看出，合成氨、尿素以及甲醛已严重过剩，亟需开拓下游产业链，增加消费需求；煤制甲醇（CTM）、甲醇制烯烃（MTO）技术的快速发展使得国内甲醇、乙烯、丙烯的对外依存度有所降低，但乙烯、丙烯产出比需及时调整优化；近年来煤制天然气、对二甲苯和乙二醇技术为国内研究热点，特别是煤基乙二醇技术的成功产业化，使得乙二醇的对外依存度由75.0%降至54.4%，但煤制聚酯级乙二醇质量仍需进一步提高；作为油气资源相对紧缺的国家，国内对天然气和对二甲苯长期依赖进口，积极开展煤制天然气和煤制对二甲苯技术的研究对我国能源及化工产业发展具有重要的战略意义。文章提出了我国新型煤化工技术应着重开展合成氨、甲醛大宗化学品下游产业链开发，解决煤制乙二醇产品质量差的问题，突破甲醇-甲苯芳构化产业化的发展思路。

关键词: 碳氢化合物, 天然气, 合成气, 甲烷, 氧化

Abstract:

In this study, the markets and technology development trends of coal-based bulk chemicals have been systematically analyzed. It is urgent to develop the downstream applications to increase the demand of the coal-based chemicals because the capacity of ammonia, urea, and formaldehyde is serious surplus in China. The import dependence of methanol, ethylene, and propylene has shown a downward trend with the coal to methanol (CTM) and methanol to olefin/propylene (MTO/MTP) technologies development. However, the production ratio between ethylene and propylene needs to be further optimized. In recent, the development of coal-based natural gas, para-xylene and ethylene glycol technologies were the research hotspot. Respectively, the coal-based ethylene glycol industrialization reduced the input dependence from 75.0% to 54.4%, while the quality of the ethylene glycol polyester grade still needed to be improved. Due to the shortage of oil and gas resources, natural gas and para-xylene have been dependent on imports for years in China. Therefore, it is of great strategic significance to the energy and chemical industry via developing the technologies of coal-based natural gas and coal-based para-xylene. The thought of coal chemical technology development has been proposed, which focuses on the extension of the downstream industrial chain of ammonia and formaldehyde bulk chemicals, solution of the poor quality of coal to ethylene glycol products, and breakthrough of the relevant research on the industrialization of methanol-toluene aromatization.

Key words: hydrocarbons, natural gas, syngas, methane, oxidation

中图分类号:

TQ530.2

陈嵩嵩, 张国帅, 霍锋, 张军平. 煤基大宗化学品市场及产业发展趋势[J]. 化工进展, 2020, 39(12): 5009-5020.

Songsong CHEN, Guoshuai ZHANG, Feng HUO, Junping ZHANG. Market and technology development trends of coal-based bulk chemicals[J]. Chemical Industry and Engineering Progress, 2020, 39(12): 5009-5020.

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