| Title: | Evaluation of the absorption performance of new compound absorbents for toluene under extremely high load |
| Author(s): | Zhu Z; Yu M; Wu Z; Yan Y; Li S; |
| Address: | "School of Ecology and Environment, Zhengzhou University, No. 100 Science Avenue, Zhengzhou, 450001, China. School of Environmental Engineering, Henan University of Technology, Zhengzhou, 450001, China. School of Ecology and Environment, Zhengzhou University, No. 100 Science Avenue, Zhengzhou, 450001, China. lsy76@163.com" |
| Journal Title: | Environ Sci Pollut Res Int |
| DOI: | 10.1007/s11356-021-14281-y |
| ISSN/ISBN: | 1614-7499 (Electronic) 0944-1344 (Linking) |
| Abstract: | "Absorption is an effective way to control volatile organic compound (VOC) industrial air pollution, and the key variable in this process is the selection of suitable liquid absorbents to absorb as many organic pollutants as possible. The objective of this study was to prepare a series of high-efficiency absorbents with different proportions of vegetal oil, mineral oil, and waste engine oil, which can be used for toluene absorption. The absorption efficiency (AE), saturated absorption (SA), and effective absorption time (EAT) of various absorbents were systematically analyzed. The results showed that when the inlet concentration of toluene was 8000 mg/m(3) and the inlet flow was 1 L/min, the SA capability of vegetal oil, mineral oil, and waste engine oil was 7.15, 12.43, and 18.16 mg/g, respectively. With the 4000 mg/m(3) inlet concentration, the SA of the absorber which was made in the ratio of 2:3:1 was increased to 50.93 mg/g. According to the thermodynamic equilibrium and absorption results, it is proved that the influence of the composition of the absorbent on absorption is greater than viscosity. It is also to be noted that the AE of the composite absorbent can still reach more than 80% after three times of heating and air purification" |
| Keywords: | *Air Pollution Thermodynamics Toluene *Volatile Organic Compounds Absorption Absorption efficiency Compound absorbent Effective absorption time Regeneration Saturated absorption; |
| Notes: | "MedlineZhu, Zhongyang Yu, Mengqi Wu, Zhenjun Yan, Yuxi Li, Shunyi eng No.122102310366/Science and Technology Department of Henan Province/ No.19A610002 & 19A150010/Key Scientific Research Project of Colleges and Universities in Henan Province/ Germany 2021/05/19 Environ Sci Pollut Res Int. 2021 Oct; 28(37):52106-52123. doi: 10.1007/s11356-021-14281-y. Epub 2021 May 17" |
