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Citrate Process for Flue Gas Desulfurization.


PB87119392

Publication Date 1986
Personal Author Nissen, W. I.; Crocker, L.; Oden, L. L.
Page Count 76
Abstract As part of its program to provide technology for reducing undesirable environmental impacts of mineral processing operations, the Bureau of Mines developed the citrate process for desulfurizing industrial stack gases that contain from 0.1 to 2 vol pct SO2. In this regenerable flue gas desulfurization process, SO2 is absorbed from cleaned and cooled industrial flue gas with a citric acid-sodium citrate solution. The absorbed SO2 is subsequently reacted with H2S to precipitate marketable elemental sulfur and regenerate the solution for recycle. The bulletin describes the citrate process and gives results of the laboratory, pilot plant, and demonstration plant studies, as well as corrosion investigations.
Keywords
  • Flue gases
  • Desulfurization
  • Air pollution control
  • Sulfur dioxide
  • Citric acid
  • Corrosion
  • Citrate process
  • Sodium citrates
Source Agency
  • Bureau of Mines
NTIS Subject Category
  • 68A - Air Pollution & Control
  • 99B - Industrial Chemistry & Chemical Process Engineering
  • 71G - Corrosion & Corrosion Inhibition
Corporate Authors Bureau of Mines, Salt Lake City, UT. Salt Lake City Research Center.
Document Type Technical Report
Title Note Bulletin.
NTIS Issue Number 198705
Citrate Process for Flue Gas Desulfurization.
Citrate Process for Flue Gas Desulfurization.
PB87119392

  • Flue gases
  • Desulfurization
  • Air pollution control
  • Sulfur dioxide
  • Citric acid
  • Corrosion
  • Citrate process
  • Sodium citrates
  • Bureau of Mines
  • 68A - Air Pollution & Control
  • 99B - Industrial Chemistry & Chemical Process Engineering
  • 71G - Corrosion & Corrosion Inhibition
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