A sulfur-resistant CuS-modified active coke for mercury removal from municipal solid waste incineration flue gas
| Autor: | Naiqiang Yan, Zhou Yongxian, Wei Liu, Yinfeng Hua, Bin Peng, Deng Mei, Zan Qu |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Flue gas
Sorbent Health Toxicology and Mutagenesis chemistry.chemical_element Incineration 010501 environmental sciences Solid Waste 01 natural sciences chemistry.chemical_compound Adsorption Sulfur Dioxide Environmental Chemistry Coke Sulfur dioxide 0105 earth and related environmental sciences Air Pollutants Mercury Compounds Temperature Sorption Mercury General Medicine Pollution Sulfur Mercury (element) chemistry Environmental chemistry Gases Oxidation-Reduction Copper |
| Zdroj: | Environmental Science and Pollution Research. 26:24831-24839 |
| ISSN: | 1614-7499 0944-1344 |
| Popis: | Adsorption is a typical method for air pollutant removal from flue gas. A CuS-modified active coke (CuS/AC) sorbent was developed to improve the elemental mercury removal efficiency from municipal solid waste incineration (MSWI) flue gas. The influences of the loading amount of CuS, reaction temperature, and flue gas components including O2, SO2, H2O, and HCl on Hg0 removal efficiency were investigated, respectively. The results showed that the mercury adsorption capacity of CuS/AC(20%) sorbent was about 7.17 mg/g with 50% breakthrough threshold, which is much higher than that of virgin active coke. The analysis of XPS indicated that HgS was the main species of mercury on spent CuS/AC, which implied that adsorption and oxidation were both included in Hg0 removal. S22− played a vital role in the oxidation of physically adsorbed Hg0. Meanwhile, the common components of MSWI flue gas exhibited no significant inhibition effect on Hg0 removal by CuS/AC sorbent. CuS/AC sorbent is a promising sorbent for the mercury removal from MSWI flue gas. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink