Method of removing sulfur dioxide from a flue gas stream

Details Method of removing sulfur dioxide from a flue gas stream Method of removing sulfur dioxide from a flue gas stream

B - Operations, Transporting

01

D

B01D 53/50 (2006.01)

Patent

CA 2618202

A method of removing SO2 from a flue gas stream including SO2 includes providing a source of trona and injecting the trona into the flue gas stream. The temperature of the flue gas is between about 600~ F and about 900~ F. The trona is maintained in contact with the flue gas for a time sufficient to react a portion of the trona with a portion of the SO2 to reduce the concentration of the SO2 in the flue gas stream.

L~invention concerne un procédé d~élimination de SO2 dans un flux de gaz de combustion renfermant du SO2, comprenant l~utilisation d~une source de trona, et l'injection du trona dans ledit flux de gaz de combustion. La température des gaz de combustion est comprise entre environ 600 °F et environ 900 °F. Le trona est maintenu au contact des gaz de combustion pendant une durée suffisante pour qu~une partie du trona réagisse avec une partie du SO2, de manière à réduire la concentration en SO2 dans le flux de gaz de combustion.

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