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FUEL RICH SULFUR CAPTURE IN A COMBUSTION ENVIRONMENT
Citation:
Lindgren, E., D. Pershing, D A. Kirchgessner*, AND D. Drehmel*. FUEL RICH SULFUR CAPTURE IN A COMBUSTION ENVIRONMENT. ENVIRONMENTAL SCIENCE & TECHNOLOGY 26(7):1427-1433, (1992).
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Information.
Description:
A refractory-lined, natural gas furnace was used to study fuel rich sulfur capture reactions of calcium sorbents under typical combustion conditions. The fuel rich sulfur species H2S and COS were monitored in a near-continuous fashion using a gas chromatograph equipped with a flame photometric detector and an automatic sampling system which sampled every 30s. Below the fuel rich zone, 25% excess air was added and the ultimate fuel lean capture was simultaneously measured using a continuous SO2 monitor. Under fuel rich conditions high levels of sulfur capture were obtained, and calcium utilization increased with sulfur concentration. The ultimate lean capture was found to be weakly dependent on sulfur concentration and independent of the sulfur capture level obtained in the fuel rich zone. Thus, for the sorbents used in this study, the high captures realized in the rich zone were lost in the lean zone.
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