| 工业废液吸收低浓度CO2：可行性及应用 |
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| 引用本文： | 许文娇,成怀刚,程芳琴.工业废液吸收低浓度CO2：可行性及应用[J].化工学报,2021,72(12):6049-6061. |
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| 作者姓名： | 许文娇 成怀刚 程芳琴 |
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| 作者单位： | 山西大学资源与环境工程研究所，CO2减排与资源化利用教育部工程研究中心，山西 太原 030006 |
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| 基金项目： | 国家自然科学基金项目(U20A20149);山西省三晋英才计划项目(2018030140) |
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| 摘 要： | 化工燃料在提供能源过程中产生的低浓度CO2废气可以被工业废液吸收。结合当前研究现状，介绍了用工业废液吸收低浓度CO2废气的研究进展，并开展了可行性分析；归纳了CO2废气与工业废液的反应原理，将其大致分为中和反应、复分解反应、微生物转化等反应类型，并讨论了其吸收动力学；总结了工业废液吸收低浓度CO2废气的工艺装置与流程。在废液吸收废气的处理模式中，CO2的吸收对降低碱液的pH、脱除废液中有害物质效果良好，同时还可以副产微纳米碳酸钙、生物柴油等高附加值产品，实现废弃资源的深度循环利用。此外，分析了工业废液吸收CO2废气的生命周期评价，通过对能耗、碳排放和成本评估，进一步讨论了工业废液吸收CO2废气对环境的影响及经济可行性。结合CO2减排的前景，从工业应用的角度探讨了工业废液用作低浓度CO2吸收剂面临的挑战，并对其未来产业化发展进行了展望。
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| 关 键 词： | 二氧化碳 吸收 反应 废物处理 废水 |
| 收稿时间： | 2021-08-02 |
Absorption of low-concentration CO2 by industrial effluents: feasibility and application |
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| Wenjiao XU,Huaigang CHENG,Fangqin CHENG.Absorption of low-concentration CO2 by industrial effluents: feasibility and application[J].Journal of Chemical Industry and Engineering(China),2021,72(12):6049-6061. |
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| Authors: | Wenjiao XU Huaigang CHENG Fangqin CHENG |
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| Affiliation: | Institute of Resources and Environmental Engineering, Engineering Research Center of CO2 Emission Reduction and Resource Utilization-Ministry of Education of the People’s Republic of China, Shanxi University, Taiyuan 030006, Shanxi, China |
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| Abstract: | The low-concentration CO2 waste gas produced by the combustion of chemical fuels can be absorbed by industrial waste water. Based on the current research status, this review reports the research progress of CO2 waste gas uptake with industrial waste water, the feasibility is analyzed. The reaction principle of waste gas with CO2 and industrial effluents is summarized, which can be roughly divided into three reaction types: neutralization reaction, metathesis reaction, and microbial degradation. Its absorption kinetics is discussed. The equipment and process of industrial waste water absorbing low-concentration CO2 waste gas are summarized. In this treatment mode, the adsorption of CO2 has a good effect on reducing the pH of lye and removing harmful substances from the waste water. Meanwhile, it can also obtain products with recycling value, such as micro/nano calcium carbonate and biodiesel, which can be applied to industrial production to realize the deep recycling of waste resources. In addition, the life cycle assessment of CO2 waste gas absorbed by industrial waste water are analyzed, and further the environmental impact and economic feasibility are analyzed by evaluating energy consumption, carbon emission and cost under specific process conditions. Combining the prospect of CO2 emission reduction, this review discusses the challenges of using industrial waste water as a low-concentration CO2 absorbent from the perspective of industrial application, and prospects for its future industrialization development. |
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| Keywords: | carbon dioxide absorption reaction waste treatment waste water |
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