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The Chinese Journal of Process Engineering ›› 2023, Vol. 23 ›› Issue (3): 350-358.DOI: 10.12034/j.issn.1009-606X.222289

• Process Reengineering for the Goals of Carbon Peaking and Carbon Neutrality • Previous Articles     Next Articles

Low-carbon and high-efficiency ammonia synthesis process from blast furnace gas/converter gas

Fujian LIU1,2,  Yong ZHENG1,2,  Yanning CAO1,2,  Lilong JIANG1,2*   

  1. 1. National Engineering Research Center of Chemical Fertilizer Catalyst (NERC-CFC), Fuzhou University, Fuzhou, Fujian 350002, China 2. Qingyuan Innovation Laboratory, Quanzhou, Fujian 362801, China
  • Received:2022-08-14 Revised:2022-11-30 Online:2023-03-28 Published:2023-03-28
  • Supported by:
    National Natural Science Foundation of China;National Natural Science Foundation of China;Fujian Industry-University Cooperation Project;Major Program of Qingyuan Innovation Laboratory

高炉煤气/转炉煤气低碳高效合成氨工艺流程

刘福建1,2， 郑勇1,2， 曹彦宁1,2， 江莉龙1,2*
  

  1. 1. 福州大学化肥催化剂国家工程研究中心，福建 福州 350002 2. 福建省清源创新实验室，福建 泉州 362801
  • 通讯作者: 江莉龙 jll@fzu.edu.cn
  • 作者简介:刘福建，博士，教授，工业催化专业，E-mail: fjliu@fzu.edu.cn；通讯联系人，江莉龙，博士，教授，工业催化专业，E-mail: jll@fzu.edu.cn
  • 基金资助:
    国家自然科学基金;国家自然科学基金;福建省产学合作项目;福建省清源创新实验室

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Abstract: As a major steel producer, the annual output of steel in China has reached 1.03 billion tons, ranking the highest amount over the world. Blast furnace gas/converter gas is the by-products of the blast furnace ironmaking industry, and its annual output is as high as ~1.8 trillion m3. Therefore, the realizing the clean and efficient utilization of blast furnace gas/converter gas is a major demand for the sustainable development. At present, the integrated utilization of blast furnace gas and converter gas by iron and steel companies mainly includes: one part is directly used as fuel for boilers, hot blast stoves, heating furnaces, etc.; The other part is to use the residual pressure of blast furnace gas to generate electricity, and then use the blast furnace gas as fuel for boilers, hot blast furnaces, and heating furnaces. With the continuous improvement of energy structure and environmental protection requirements in China, the integrated utilization of blast furnace gas/converter gas, purification and proportioning according to the raw material process requirements of industrial synthetic ammonia to produce green hydrogen, which is used as the raw feedstocks for synthetic ammonia. It can not only meet the demand of regional economic development for green synthetic ammonia production, but also realize the reorganization of blast furnace gas/converter gas resources. As a result, the new technique promotes the green development of the regional economy, which meets the current national requirements for energy saving and emission reduction for ammonia synthesis and the steel industry. Based on this, this review systematically analyzes and forecasts the low-carbon and high-efficiency ammonia synthesis process from blast furnace gas/converter gas and demonstrates the advantages of the developed technique.

Key words: synthetic ammonia process flow, blast furnace gas, converter gas, low-carbon and high-efficiency

摘要： 作为钢铁生产大国，我国的钢铁年产量已超过10.3亿吨，位居世界第一位。高炉煤气/转炉煤气是以煤炭为原料的高炉炼铁行业的副产品，其年产量高达1.8万亿立方米，实现对高炉煤气/转炉煤气的清洁高效再利用是国家的重大需求。目前，钢铁企业实现高炉煤气及转炉煤气的综合利用主要包括：一种是直接给锅炉、热风炉和加热炉等作为燃料使用；另一种是利用高炉煤气的余压发电，再将发电用后的高炉煤气作为燃料供锅炉、热风炉和加热炉等使用。随着我国能源结构及环保要求的不断完善，综合利用高炉煤气/转炉煤气并按照工业合成氨的原料工艺要求进行净化、配比后制取绿氢，并作为原料用于合成氨，不仅能够满足区域经济发展对绿色合成氨产能的需求，还能够实现高炉煤气/转炉煤气资源重整，促进区域经济绿色发展，符合当前国家对合成氨及钢铁行业提出的节能减排的要求。基于此，本综述对高炉煤气/转炉煤气低碳高效合成氨工艺流程及其优势进行系统分析与展望。

关键词: 合成氨工艺流程, 高炉煤气, 转炉煤气, 低碳高效