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Flue gas desulfurization/The Kellogg-Weir scrubbing system

Journal Article · · Chem. Eng. Prog.; (United States)
OSTI ID:5323453
The Kellogg-Weir Scrubbing System is a modified calcium-based (lime or limestone) system) system that absorbs more efficiently and features much less potential for scaling than do unmodified systems. The improved absorption efficiency permits the use of a low contact time absorber, such as a spray tower, which has the added advantage of minimizing gas pressure drop. This scrubber, for which Pullman Kellogg has obtained an exclusive license to offer commercially, was developed and patented by A. Weir. It comprises a horizontal, cross-flow spray chamber that can be operated at high gas velocities (> 20 ft/sec) and still provide good mass transfer characteristics. The modification in Kellogg's sulfur dioxide scrubbing process is the use of soluble sulfates, preferably magnesium sulfate (about 3-27% by wt), to improve lime-limestone sulfur dioxide scrubbing. The air quality control system that is being built by Kellogg for Pennsylvania Power Co. is described in some detail, including the particulate removal, sulfur dioxide absorption, and supporting facilities.
Research Organization:
Pullman Kellogg
OSTI ID:
5323453
Journal Information:
Chem. Eng. Prog.; (United States), Journal Name: Chem. Eng. Prog.; (United States) Vol. 74:2; ISSN CEPRA
Country of Publication:
United States
Language:
English