The effect of sulfur poisoning of dimethyl disulfide on the catalytic incineration over a Pt/Al2O2 catalyst

H. Chu, W. T. Lee

研究成果: Article同行評審

30 引文 斯高帕斯(Scopus)

摘要

Catalytic incineration was one of the cost-effective technologies to solve the troublesome VOCs. However, some sulfur containing VOCs, such as dimethyl disulfide, may deactivate the Pt catalyst that was commonly used in the catalytic incineration process. This article provides information on the poisoning effect of dimethyl disulfide. The catalytic incineration of dimethyl disulfide and ethanol, typically emitted from the petrochemical industry, over a Pt/Al2O3 fixed bed catalytic reactor were studied. The effects of operating parameters including inlet temperature, space velocity, VOCs concentration, O2 concentration and catalyst size were characterized. Catalytic incineration on a mixture of dimethyl disulfide and ethanol was also tested. The results show that the conversions of C2H5OH and (CH3)S2 increase as the inlet temperature increases and the space velocity decreases. The higher the C2H5OH concentration is, the higher its conversion is. However, the reverse is true for the case of (CH3)2S2. The O2 concentration has no effects on the conversion of C2H5OH but has a positive effect on the conversion of (CH3)2S2. (CH3)2S2 has a poisoning effect on the Pt/Al2O3 catalyst, especially at a lower temperature. The conversion of C2H5OH is significantly suppressed by the existence of (CH3)2S2 at a temperature lower than 300°C.

原文English
頁(從 - 到)217-224
頁數8
期刊Science of the Total Environment
209
發行號2-3
DOIs
出版狀態Published - 1998 1月 19

All Science Journal Classification (ASJC) codes

  • 環境工程
  • 環境化學
  • 廢物管理和處置
  • 污染

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