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Title: Iron catalyzed coal liquefaction process

Abstract

A process is described for the solvent refining of coal into a gas product, a liquid product and a normally solid dissolved product. Particulate coal and a unique co-catalyst system are suspended in a coal solvent and processed in a coal liquefaction reactor, preferably an ebullated bed reactor. The co-catalyst system comprises a combination of a stoichiometric excess of iron oxide and pyrite which reduce predominantly to active iron sulfide catalysts in the reaction zone. This catalyst system results in increased catalytic activity with attendant improved coal conversion and enhanced oil product distribution as well as reduced sulfide effluent. Iron oxide is used in a stoichiometric excess of that required to react with sulfur indigenous to the feed coal and that produced during reduction of the pyrite catalyst to iron sulfide.

Inventors:
 [1];  [2]
  1. (Macungie, PA)
  2. (Bethlehem, PA)
Issue Date:
Research Org.:
AIR PRODUCTS & CHEMICALS INC
OSTI Identifier:
864752
Patent Number(s):
4411766
Assignee:
Air Products and Chemicals, Inc. (Allentown, PA) OSTI
DOE Contract Number:  
AC22-79ET14806
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
iron; catalyzed; coal; liquefaction; process; described; solvent; refining; gas; product; liquid; normally; solid; dissolved; particulate; unique; co-catalyst; suspended; processed; reactor; preferably; ebullated; bed; comprises; combination; stoichiometric; excess; oxide; pyrite; reduce; predominantly; active; sulfide; catalysts; reaction; zone; catalyst; results; increased; catalytic; activity; attendant; improved; conversion; enhanced; oil; distribution; reduced; effluent; required; react; sulfur; indigenous; feed; produced; reduction; coal conversion; solid dissolved; solvent refining; iron sulfide; catalytic activity; bed reactor; liquefaction process; coal liquefaction; reaction zone; iron oxide; enhanced oil; liquid product; particulate coal; feed coal; liquefaction reactor; normally solid; sulfide catalysts; stoichiometric excess; oil product; improved coal; gas product; coal solvent; ebullated bed; sulfide catalyst; /208/

Citation Formats

Garg, Diwakar, and Givens, Edwin N. Iron catalyzed coal liquefaction process. United States: N. p., 1983. Web.
Garg, Diwakar, & Givens, Edwin N. Iron catalyzed coal liquefaction process. United States.
Garg, Diwakar, and Givens, Edwin N. Sat . "Iron catalyzed coal liquefaction process". United States. https://www.osti.gov/servlets/purl/864752.
@article{osti_864752,
title = {Iron catalyzed coal liquefaction process},
author = {Garg, Diwakar and Givens, Edwin N.},
abstractNote = {A process is described for the solvent refining of coal into a gas product, a liquid product and a normally solid dissolved product. Particulate coal and a unique co-catalyst system are suspended in a coal solvent and processed in a coal liquefaction reactor, preferably an ebullated bed reactor. The co-catalyst system comprises a combination of a stoichiometric excess of iron oxide and pyrite which reduce predominantly to active iron sulfide catalysts in the reaction zone. This catalyst system results in increased catalytic activity with attendant improved coal conversion and enhanced oil product distribution as well as reduced sulfide effluent. Iron oxide is used in a stoichiometric excess of that required to react with sulfur indigenous to the feed coal and that produced during reduction of the pyrite catalyst to iron sulfide.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1983},
month = {1}
}

Patent:

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