Clear Liquor Scrubbing with Anhydrite Production

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Description

The objective of this project to develop an advanced flue gas desulfurization (FGD) process that has decreased capital and operating costs, higher SO{sub 2} removal efficiency, and better by-product solids quality than existing, commercially available technology. A clear liquor process (which uses a scrubbing liquid with no solids) will be used to accomplish this objective rather than a slurry liquor process (which contains solids). This clear liquor scrubbing (CLS) project is focused on three research areas: (1) Development of a clear liquor scrubbing process that uses a clear solution to remove SO{sub 2} from flue gas and can be operated ... continued below

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12 pages

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Hargrove, O. W.; Carey, T. R.; Lowell, P. S.; Meserole, F. B.; Rhudy, R. G. & Feeley, Thomas J. July 1, 1997.

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Description

The objective of this project to develop an advanced flue gas desulfurization (FGD) process that has decreased capital and operating costs, higher SO{sub 2} removal efficiency, and better by-product solids quality than existing, commercially available technology. A clear liquor process (which uses a scrubbing liquid with no solids) will be used to accomplish this objective rather than a slurry liquor process (which contains solids). This clear liquor scrubbing (CLS) project is focused on three research areas: (1) Development of a clear liquor scrubbing process that uses a clear solution to remove SO{sub 2} from flue gas and can be operated under inhibited-oxidation conditions; (2) Development of an anhydrite process that converts precipitated calcium sulfite to anhydrous calcium sulfate (anhydrite); and (3) Development of an alkali/humidification process to remove HCl from flue gas upstream of the FGD system. The anhydrite process also can be retrofit into existing FGD systems to produce a valuable by-product as an alternative to gypsum. This fits well into another of FETC's PRDA objectives of developing an advanced byproduct recovery subsystem capable of transforming SO{sub 2} into a useable byproduct or high-volume valuable commodities of interest. This paper describes the proposed processes, outlines the test approach, and preliminary Phase I test results.

Physical Description

12 pages

Notes

OSTI as DE00016965

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  • Advanced Coal-Based Power and Environmental Systems, Conference location not supplied, Conference dates not supplied; Other Information: Supercedes report DE00016965; Supercedes report DE98051626; PBD: 1 Jul 1997

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  • Other: DE98051626
  • Report No.: DOE/PC/95253--98/C0929
  • Report No.: CONF-970772--
  • Grant Number: AC22-95PC95253
  • Office of Scientific & Technical Information Report Number: 16965
  • Archival Resource Key: ark:/67531/metadc618498

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • July 1, 1997

Added to The UNT Digital Library

  • June 16, 2015, 7:43 a.m.

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  • March 10, 2016, 10:45 p.m.

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Hargrove, O. W.; Carey, T. R.; Lowell, P. S.; Meserole, F. B.; Rhudy, R. G. & Feeley, Thomas J. Clear Liquor Scrubbing with Anhydrite Production, article, July 1, 1997; United States. (digital.library.unt.edu/ark:/67531/metadc618498/: accessed November 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.