Method for Detection of Trace Metal and Metalloid Contaminants in Coal-Generated Fuel Gas Using Gas Chromatography/Ion Trap Mass Spectrometry
详细信息 查看全文
- 作者：Erik C. Rupp ; Evan J. Granite ; Dennis C. Stanko
- 刊名：Analytical Chemistry
- 出版年：2010
- 出版时间：July 15, 2010
- 年：2010
- 卷：82
- 期：14
- 页码：6315-6317
- 全文大小：76K
- 年卷期：v.82,no.14(July 15, 2010)
- ISSN：1520-6882
文摘
There exists an increasing need to develop a reliable method to detect trace contaminants in fuel gas derived from coal gasification. While Hg is subject to current and future regulations, As, Se, and P emissions may eventually be regulated. Sorbents are the most promising technology for the removal of contaminants from coal-derived fuel gas, and it will be important to develop a rapid analytical detection method to ensure complete removal and determine the ideal time for sorbent replacement/regeneration in order to reduce costs. This technical note explores the use of a commercial gas chromatography/ion trap mass spectrometry system for the detection of four gaseous trace contaminants in a simulated fuel gas. Quantitative, repeatable detection with limits at ppbv to ppmv levels were obtained for arsine (AsH3), phosphine (PH3), and hydrogen selenide (H2Se), while qualitative detection was observed for mercury. Decreased accuracy and response caused by the primary components of fuel gas were observed.