SCI和EI收录∣中国化工学会会刊

Chinese Journal of Chemical Engineering ›› 2023, Vol. 61 ›› Issue (9): 110-117.DOI: 10.1016/j.cjche.2023.03.022

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A CO2-controllable phase change absorbent solvent used to waste recycling of dining lampblack

Wenjian Yue1, Xiaojiang Li1,4, Junhao Jing1, Li Tong1, Na Wang1, Hongsheng Lu1,2,3, Zhiyu Huang1,2,3   

  1. 1. College of Chemistry and Chemical Engineering Southwest Petroleum University, Chengdu 610500, China;
    2. Engineering Research Center of Oilfield Chemistry, Ministry of Education, Chengdu 610500, China;
    3. Oil and Gas Field Applied Chemistry Key Laboratory of Sichuan Province, Chengdu 610500, China;
    4. Chongqing University of Science and Technology, Chongqing 401331, China
  • Received:2022-12-18 Revised:2023-03-07 Online:2023-12-14 Published:2023-09-28
  • Contact: Xiaojiang Li,E-mail:xiaojang.li@qq.com;Hongsheng Lu,E-mail:hshlu@swpu.edu.cn
  • Supported by:
    This work was supported by the Chengdu Science and Technology Project of the Chengdu Bureau of Science and Technology (2021-YF05-00194-SN) and the Foundation of Department of Science and Technology of Sichuan Province (2022NSFSC0203).

A CO2-controllable phase change absorbent solvent used to waste recycling of dining lampblack

Wenjian Yue1, Xiaojiang Li1,4, Junhao Jing1, Li Tong1, Na Wang1, Hongsheng Lu1,2,3, Zhiyu Huang1,2,3   

  1. 1. College of Chemistry and Chemical Engineering Southwest Petroleum University, Chengdu 610500, China;
    2. Engineering Research Center of Oilfield Chemistry, Ministry of Education, Chengdu 610500, China;
    3. Oil and Gas Field Applied Chemistry Key Laboratory of Sichuan Province, Chengdu 610500, China;
    4. Chongqing University of Science and Technology, Chongqing 401331, China
  • 通讯作者: Xiaojiang Li,E-mail:xiaojang.li@qq.com;Hongsheng Lu,E-mail:hshlu@swpu.edu.cn
  • 基金资助:
    This work was supported by the Chengdu Science and Technology Project of the Chengdu Bureau of Science and Technology (2021-YF05-00194-SN) and the Foundation of Department of Science and Technology of Sichuan Province (2022NSFSC0203).

Abstract: Dining lampblack as a source of atmospheric pollution, urban residents had to spend a lot of economic costs all year round to solve its impact. However, traditional treatment methods often carry the risk of secondary pollution. The use of phase change absorption solvent (PCAS) controlled by CO2 can effectively absorb the oily components in dining lampblack, and smoothly avoid the generation of secondary pollutants and squandering of resources. The reversibility of PCASs under CO2 control was explained by pH changes and macroscopic visualizations. The absorption effects of favorable absorbents and PCASs on dining lampblack were compared and analyzed. The fatty acid (FA) in the oil absorption mixture was desorbed by interacting with D230. The results of GC/MS analysis on the oil components separated by desorption showed that the desorption of PCASs was effective for these refractory oil components. FAs can be enriched and applied to the subsequent dining lampblack treatment link to realize the waste recycling. In addition, the absorption and desorption of oily components by PCASs were combined with the CO2-controlled phase transformation of PCASs itself to achieve the absorption circulation of treating dining lampblack by using PCASs.

Key words: Dining lampblack, CO2-switchable, Phase change, Absorption, Waste recycling, Solvents

摘要: Dining lampblack as a source of atmospheric pollution, urban residents had to spend a lot of economic costs all year round to solve its impact. However, traditional treatment methods often carry the risk of secondary pollution. The use of phase change absorption solvent (PCAS) controlled by CO2 can effectively absorb the oily components in dining lampblack, and smoothly avoid the generation of secondary pollutants and squandering of resources. The reversibility of PCASs under CO2 control was explained by pH changes and macroscopic visualizations. The absorption effects of favorable absorbents and PCASs on dining lampblack were compared and analyzed. The fatty acid (FA) in the oil absorption mixture was desorbed by interacting with D230. The results of GC/MS analysis on the oil components separated by desorption showed that the desorption of PCASs was effective for these refractory oil components. FAs can be enriched and applied to the subsequent dining lampblack treatment link to realize the waste recycling. In addition, the absorption and desorption of oily components by PCASs were combined with the CO2-controlled phase transformation of PCASs itself to achieve the absorption circulation of treating dining lampblack by using PCASs.

关键词: Dining lampblack, CO2-switchable, Phase change, Absorption, Waste recycling, Solvents