SO2 Removal with Coal Scrubbing. Final Report, August 1, 1999-July 31, 2001.

[摘要] This project is based on an effective removal of sulfur dioxide from flue gas with coal as the scrubbing medium instead of lime, which is used in the conventional FGD processes. A laboratory study proves that coal scrubbing is an innovative technology that can be implemented into a commercial process in place of the conventional lime scrubbing flue gas desulfurization process. SO(sub 2) was removed from a gas stream using an apparatus, which consisted of a 1-liter stirred reactor immersed in a thermostated oil bath. The reactor contained 60 g of 35-65 mesh coal in 600 ml of water. The apparatus also had 2 bubblers connected to the outlet of the reactor, each containing 1500 ml of 1 molar NaOH solution. The flow rate of the gas was 30 ml/sec, temperature was varied from 21 C to 73 C. Oxygen concentration ranged from 3 to 20% while SO(sub 2) concentration, from 500 to 2000 ppm. SO(sub 2) recovery was determined by analyzing SO(sub 2) concentration in the liquid samples taken from the bubblers.

[发布机构] Technical Information Center Oak Ridge Tennessee

[学科分类] 工程和技术（综合）

[关键词] Desulfurization;Flue gas;Air pollution control;Gas scrubbing;Sulfur dioxide