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Title: Process for carbonaceous material conversion and recovery of alkali metal catalyst constituents held by ion exchange sites in conversion residue

Abstract

In a coal gasification operation or similar conversion process carried out in the presence of an alkali metal-containing catalyst wherein solid particles containing alkali metal residues are produced, alkali metal constituents are recovered for the particles by contacting or washing them with an aqueous solution containing calcium or magnesium ions in an alkali metal recovery zone at a low temperature, preferably below about 249.degree. F. During the washing or leaching process, the calcium or magnesium ions displace alkali metal ions held by ion exchange sites in the particles thereby liberating the ions and producing an aqueous effluent containing alkali metal constituents. The aqueous effluent from the alkali metal recovery zone is then recycled to the conversion process where the alkali metal constituents serve as at least a portion of the alkali metal constituents which comprise the alkali metal-containing catalyst.

Inventors:
 [1]
  1. (Seabrook, TX)
Issue Date:
OSTI Identifier:
863532
Patent Number(s):
4193772
Assignee:
Exxon Research & Engineering Co. (Florham Park, NJ) OSTI
DOE Contract Number:  
E(49-18)-2369
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
process; carbonaceous; material; conversion; recovery; alkali; metal; catalyst; constituents; held; exchange; sites; residue; coal; gasification; operation; similar; carried; presence; metal-containing; solid; particles; containing; residues; produced; recovered; contacting; washing; aqueous; solution; calcium; magnesium; zone; temperature; preferably; below; 249; degree; leaching; displace; liberating; producing; effluent; recycled; serve; portion; comprise; metal recovery; gasification operation; process carried; containing alkali; similar conversion; conversion process; particles containing; alkali metal-containing; metal constituents; solid particles; solution containing; alkali metal; aqueous solution; carbonaceous material; coal gasification; metal catalyst; coal gas; metal residues; metal-containing catalyst; solid particle; metal constituent; exchange sites; constituents serve; catalyst constituents; particles contain; material conversion; /48/208/423/502/

Citation Formats

Sharp, David W. Process for carbonaceous material conversion and recovery of alkali metal catalyst constituents held by ion exchange sites in conversion residue. United States: N. p., 1980. Web.
Sharp, David W. Process for carbonaceous material conversion and recovery of alkali metal catalyst constituents held by ion exchange sites in conversion residue. United States.
Sharp, David W. Tue . "Process for carbonaceous material conversion and recovery of alkali metal catalyst constituents held by ion exchange sites in conversion residue". United States. https://www.osti.gov/servlets/purl/863532.
@article{osti_863532,
title = {Process for carbonaceous material conversion and recovery of alkali metal catalyst constituents held by ion exchange sites in conversion residue},
author = {Sharp, David W.},
abstractNote = {In a coal gasification operation or similar conversion process carried out in the presence of an alkali metal-containing catalyst wherein solid particles containing alkali metal residues are produced, alkali metal constituents are recovered for the particles by contacting or washing them with an aqueous solution containing calcium or magnesium ions in an alkali metal recovery zone at a low temperature, preferably below about 249.degree. F. During the washing or leaching process, the calcium or magnesium ions displace alkali metal ions held by ion exchange sites in the particles thereby liberating the ions and producing an aqueous effluent containing alkali metal constituents. The aqueous effluent from the alkali metal recovery zone is then recycled to the conversion process where the alkali metal constituents serve as at least a portion of the alkali metal constituents which comprise the alkali metal-containing catalyst.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1980},
month = {1}
}

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