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Title: Recovery and regeneration of spent MHD seed material by the formate process

Abstract

The specification discloses a spent seed recovery and regeneration process for an MHM power plant employing an alkali metal salt seed material such as potassium salt wherein the spent potassium seed in the form of potassium sulfate is collected from the flue gas and reacted with calcium hydroxide and carbon monoxide in an aqueous solution to cause the formation of calcium sulfate and potassium formate. The pH of the solution is adjusted to supress formation of formic acid and to promote precipitation of any dissolved calcium salts. The solution containing potassium formate is then employed to provide the potassium salt in the form of potassium formate or, optionally, by heating the potassium formate under oxidizing conditions to convert the potassium formate to potassium carbonate.

Inventors:
 [1];  [2];  [2];  [3];  [4];  [3]
  1. Tullahoma, TN
  2. Manchester, TN
  3. Seattle, WA
  4. Redmond, WA
Issue Date:
Research Org.:
Univ. of Tennessee, Knoxville, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
868030
Patent Number(s):
5057294
Assignee:
University of Tennessee Research Corporation (Knoxville, TN)
DOE Contract Number:  
AC22-87PC79671
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
recovery; regeneration; spent; mhd; seed; material; formate; process; specification; discloses; mhm; power; plant; employing; alkali; metal; salt; potassium; form; sulfate; collected; flue; gas; reacted; calcium; hydroxide; carbon; monoxide; aqueous; solution; formation; ph; adjusted; supress; formic; acid; promote; precipitation; dissolved; salts; containing; employed; provide; optionally; heating; oxidizing; conditions; convert; carbonate; potassium seed; potassium carbonate; oxidizing conditions; calcium salts; potassium sulfate; regeneration process; solution containing; carbon monoxide; alkali metal; aqueous solution; metal salt; power plant; flue gas; seed material; specification discloses; calcium hydroxide; calcium sulfate; formic acid; potassium salt; generation process; /423/

Citation Formats

Sheth, Atul C, Holt, Jeffrey K, Rasnake, Darryll G, Solomon, Robert L, Wilson, Gregory L, and Herrigel, Howard R. Recovery and regeneration of spent MHD seed material by the formate process. United States: N. p., 1991. Web.
Sheth, Atul C, Holt, Jeffrey K, Rasnake, Darryll G, Solomon, Robert L, Wilson, Gregory L, & Herrigel, Howard R. Recovery and regeneration of spent MHD seed material by the formate process. United States.
Sheth, Atul C, Holt, Jeffrey K, Rasnake, Darryll G, Solomon, Robert L, Wilson, Gregory L, and Herrigel, Howard R. Tue . "Recovery and regeneration of spent MHD seed material by the formate process". United States. https://www.osti.gov/servlets/purl/868030.
@article{osti_868030,
title = {Recovery and regeneration of spent MHD seed material by the formate process},
author = {Sheth, Atul C and Holt, Jeffrey K and Rasnake, Darryll G and Solomon, Robert L and Wilson, Gregory L and Herrigel, Howard R},
abstractNote = {The specification discloses a spent seed recovery and regeneration process for an MHM power plant employing an alkali metal salt seed material such as potassium salt wherein the spent potassium seed in the form of potassium sulfate is collected from the flue gas and reacted with calcium hydroxide and carbon monoxide in an aqueous solution to cause the formation of calcium sulfate and potassium formate. The pH of the solution is adjusted to supress formation of formic acid and to promote precipitation of any dissolved calcium salts. The solution containing potassium formate is then employed to provide the potassium salt in the form of potassium formate or, optionally, by heating the potassium formate under oxidizing conditions to convert the potassium formate to potassium carbonate.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1991},
month = {1}
}

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