化工进展 ›› 2022, Vol. 41 ›› Issue (3): 1399-1408.DOI: 10.16085/j.issn.1000-6613.2021-2314

• 减污降碳协同化工节能减排技术 • 上一篇    下一篇

碳中和目标下的煤化工变革与发展

相宏伟1,2(), 杨勇1,2, 李永旺1,2   

  1. 1.中国科学院山西煤炭化学研究所煤转化国家重点实验室,山西 太原 030001
    2.中科合成油技术股份有限公司国家能源煤基液体燃料研究中心,北京 101407
  • 收稿日期:2021-11-11 修回日期:2021-12-06 出版日期:2022-03-23 发布日期:2022-03-28
  • 通讯作者: 相宏伟
  • 作者简介:相宏伟(1964—),男,博士,研究员,研究方向为煤制油催化剂及其反应工程。E-mail:hwxiang@sxicc.ac.cn
  • 基金资助:
    中国科学院先导专项项目(XDA21020100)

Transformation and development of coal chemical industry under the goal of carbon neutralization

XIANG Hongwei1,2(), YANG Yong1,2, LI Yongwang1,2   

  1. 1.State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, Shanxi, China
    2.National Energy Center for Coal to Liquids, Synfuels China Co. , Ltd. , Beijing 101407, China
  • Received:2021-11-11 Revised:2021-12-06 Online:2022-03-23 Published:2022-03-28
  • Contact: XIANG Hongwei

摘要:

碳中和目标的达成将对我国煤化工产业的发展产生深刻的影响。本文分析了煤炭消费与煤化工的CO2排放情况及煤化工在国家经济中的作用,指出碳减排技术与煤化工工艺耦合是实现煤化工碳减排与可持续发展的关键,现实地选择优化产业结构与提高能量利用效率的措施可明显但有限地降低CO2排放量,认为要实现煤化工亿吨级规模的碳减排必须采用绿电绿氢、碳捕获与封存/碳捕获利用与封存(CCS/CCUS和CO2)资源化利用技术。文中评述了近年来绿电绿氢、CCS/CCUS和CO2资源化利用技术应用的主要进展,指出2030年碳达峰前这些碳减排技术将处于关键的示范考验期,能否成熟可靠将决定之后的煤化工发展走向,同时预测氢冶金与绿氨合成示范技术的推广应用将可能导致煤化工产业格局的重大变化。最后基于空气直接捕集CO2技术与光电催化CO2转化或模拟光合反应的研究进展,设想了未来可能呈现的零碳化工体系。

关键词: 煤化工, 碳排放, 绿氢, 碳捕获与封存/碳捕获利用与封存技术, 二氧化碳资源化利用

Abstract:

The implementation of carbon neutralization target will have a profound impact on the development of coal chemical industry and technology in China. This paper analyzes the overall CO2 emission of coal consumption and coal chemical industry and the role of coal chemical industry in the national economy, proposes that the coupling of carbon emission reduction technology and coal chemical process is the key to realize the carbon emission reduction and sustainable development of coal chemical industry and realistically choosing measures to optimize industrial structure and improve energy efficiency can significantly but limited reduce CO2 emission. In order to achieve CO2 emission reduction in 100 million ton scale, these technologies of green electricity and green hydrogen, CCS/CCUS and CO2 resource utilization must be adopted. The paper reviews the main progress on the technologies of green electricity and green hydrogen, CCS/CCUS and CO2 resource utilization in recent years, and points out that in the 10 years before the carbon peak in 2030, these carbon emission reduction technologies will be in the key demonstration test period. Whether they are mature and reliable will determine the development trend of coal chemical industry after the carbon peak. It is predicted that the demonstration application of hydrogen metallurgy and green ammonia synthesis will possibly lead to significant changes in the structure of coal chemical industry. Finally, the paper prospects and outlines the possible zero carbon chemical industry system based on the research progress of air direct capture CO2 technology and photo/electro-catalytic CO2 conversion or simulated photosynthetic reaction via CO2 and water.

Key words: coal chemical industry, carbon emission, green hydrogen, CCS/CCUS technology, CO2 resource utilization

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