直接空气捕集二氧化碳技术研究进展
Progress on direct air capture of carbon dioxide
廖昌建 1张可伟 2王晶 1曾翔宇 1金平 1刘志禹1
作者信息
- 1. 中石化(大连)石油化工研究院有限公司,辽宁大连 116045
- 2. 中国石油化工股份有限公司,北京 100728
- 折叠
摘要
直接空气捕集(DAC)二氧化碳技术作为负碳排放技术的一种,可助力实现"双碳"目标,是一项极具发展前景的碳捕集技术.本文简述了 DAC的发展历史与现有DAC项目的运行及发展情况,介绍了碱性氢氧化物溶液、胺溶液、氨基酸盐溶液/BIGs与碱度浓度变化四种液体DAC技术,以及固体碱(土)金属、固态胺、金属有机框架MOFs材料及变湿吸附等固体DAC技术.对各种DAC技术的工艺流程及相关设备进行了综述,详述了各种DAC技术的原理、二氧化碳捕集方法及吸附/吸收剂再生方式,重点分析了每种DAC技术在吸附/吸收剂性能、再生温度、再生能耗及循环稳定性等方面的优缺点.指出需进一步研发低成本、高吸附/吸收性能且循环稳定性好的DAC吸附/吸收剂,优化或开发吸附/吸收剂再生工艺,同时开发适用于DAC技术的过程强化技术,为DAC的后续规模化与商业化应用奠定基础.
Abstract
Direct air capture(DAC)of carbon dioxide technology is a kind of negative carbon technology.As one of the important technologies to help achieving the carbon peaking and carbon neutrality goals,DAC technology has great development prospects.The development history of DAC and the operation and development of existing DAC projects were briefly described,and some liquid DAC technologies and solid DAC technologies were introduced.The liquid DAC technologies included aqueous hydroxide sorbents,aqueous basic solutions,aqueous amino acids/BIGs and alkalinity concentration swing technologies.The solid DAC technologies included solid alkali carbonates,solid-supported amine materials,MOFs materials,moisture swing technology and so on.The technological process and related equipment of various DAC technology were summarized.The principle of various DAC technologies,carbon dioxide capture methods and adsorbent/absorbent regeneration methods were described in detail.The advantages and disadvantages of each DAC technology in terms of adsorbent/absorbent performance,regeneration temperature,regeneration energy consumption and cycle stability were analyzed.It was pointed out that it was necessary to further develop DAC adsorbents/absorbents with low cost,high adsorption/absorption performance and good cycle stability,optimize and develop adsorbent/absorbent regeneration process,and develop process strengthening technology suitable for DAC technology,so as to lay a foundation for the subsequent large-scale and commercial application of DAC.
关键词
二氧化碳/直接空气捕集/吸附/吸收法/解吸Key words
carbon dioxide/direct air capture/adsorption/absorption/desorption引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据