| 低能耗化学吸收碳捕集技术展望 |
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| 引用本文： | 唐思扬,李星宇,鲁厚芳,钟山,梁斌. 低能耗化学吸收碳捕集技术展望[J]. 化工进展, 2022, 41(3): 1102-1106. DOI: 10.16085/j.issn.1000-6613.2021-2234 |
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| 作者姓名： | 唐思扬 李星宇 鲁厚芳 钟山 梁斌 |
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| 作者单位： | 1.四川大学化学工程学院，四川 成都 610065;2.四川大学新能源与低碳技术研究院，四川 成都 610207 |
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| 基金项目： | 国家自然科学基金（21878190）；;国家重点研发计划（2018YFB0605700）； |
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| 摘 要： | 低能耗的CO2捕集技术对“碳减排”有重要意义。化学吸收法是工业常用的CO2捕集方法，过程能耗高、成本高，限制了大规模的工业应用。近年来，随着新型吸收剂的开发和吸收解吸装置的设计，过程能耗有所降低，在我国已有多套碳捕集示范装置。然而进一步降低捕集能耗，节约捕集成本是实现“碳中和”的不变追求。本文基于溶剂化学吸收CO2研究，提出以下化学吸收法的研究方向：开发广泛的相变吸收理论，构建吸收体系数据库，建立定量预测模型，以实现吸收体系的分子设计；强化气液传质，设计液相传热部件和气液分离空间，研发高效吸收解吸设备，以提升碳捕集效率；耦合化学吸收和矿化，实现原位CO2吸收固定，提升过程经济性。通过化学吸收技术的系统研发，以期促进低能耗的碳捕集，助力祖国实现“碳中和”。
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| 关 键 词： | 二氧化碳 化学吸收 过程强化 矿化 低能耗 |
| 收稿时间： | 2021-10-30 |
Perspective on low-energy chemical absorption for CO2 capture |
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| TANG Siyang,LI Xingyu,LU Houfang,ZHONG Shan,LIANG Bin. Perspective on low-energy chemical absorption for CO2 capture[J]. Chemical Industry and Engineering Progress, 2022, 41(3): 1102-1106. DOI: 10.16085/j.issn.1000-6613.2021-2234 |
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| Authors: | TANG Siyang LI Xingyu LU Houfang ZHONG Shan LIANG Bin |
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| Affiliation: | 1.School of Chemical Engineering, Sichuan University, Chengdu 610065, Sichuan, China
2.Institute of New Energy and Low-Carbon Technology, Sichuan University, Chengdu 610207, Sichuan, China |
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| Abstract: | CO2 capture with a low energy consumption is of application significance for reducing CO2 emission. Chemical absorption, commercialized for decades, has been regarded as an effective method for CO2 capture. However, a high energy consumption and a high cost limit the large-scale industrial applications. Some new absorbents and specific devices are developed. With the reduce of energy consumption of chemical absorption, several demonstration projects have been established in China recently. And reducing the capture energy consumption and lowering the capture cost are the constant pursuits for achieving “carbon neutrality”. The following suggestions of chemical absorption are proposed on the basis of the previous researches: developing a broadly applicable absorption theory for phase-change absorption system, building an database of the absorption systems, and establishing some quantitative models are proposed for effectively developing new solvents for CO2 absorption; strengthening the gas-liquid mass transfer and designing heat transfer components with high performance are proposed for improving carbon capture efficiency; coupling chemical absorption and mineralization are proposed to achieve in-situ CO2 absorption and fixation, which may increase the economy of the process. All those accumulated researches are expected to promote carbon capture and to achieve “carbon neutrality”. |
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| Keywords: | carbon dioxide chemical absorption process reinforcement mineralization low energy consumption |
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