A CO_(2)-controllable phase change absorbent solvent used to waste recycling of dining lampblack  

作　　者：Wenjian Yue Xiaojiang Li Junhao Jing Li Tong Na Wang Hongsheng Lu Zhiyu Huang 

机构地区：[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

出　　处：《Chinese Journal of Chemical Engineering》2023年第9期110-117,共8页中国化学工程学报（英文版）

基　　金：supported by the Chengdu Science and Technology Project of the Chengdu Bureau of Science and Technology(2021-YF05-00194-SN);the Foundation of Department of Science and Technology of Sichuan Province(2022NSFSC0203)。

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 CO_(2)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 CO_(2)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 CO_(2)-controlled phase transformation of PCASs itself to achieve the absorption circulation of treating dining lampblack by using PCASs.

关 键 词：Dining lampblack CO_(2)-switchable Phase change Absorption Waste recycling Solvents 

分 类 号：O64[理学—物理化学]