Which route to coal liquefaction

Journal Article · Sun Nov 01 04:00:00 EST 1981 · Hydrocarbon Process.; (United States)

OSTI ID:5490150

Nene, R G

Two main methods for producing liquid fuels from coal are currently undergoing intensive evaluation. One, direct liquefaction (e.g., SRC-II, Exxon Donor Solvent (EDS), and H-Coal) produces liquid fuels directly from coal; the other, indirect liquefaction (e.g., Lurgi gasifier followed by Fischer-Tropsch, and Shell-Koppers gasifier followed by methanol synthesis and Mobil's MTG process) first gasifies coal and then converts the gaseous material into liquid products. This paper compares both routes basing its assessment on yields, thermal efficiencies, elemental balances, investment, complexity, and state of development. It is shown that direct liquefaction is more efficient and produces more product per investment dollar. Higher efficiency for direct liquefaction is verified bY stoichiometric and thermodynamic analysis. All approaches require about the same capital investment per unit of feed. Indirect liquefaction can be either more or less complex than direct liquefaction, depending upon the process. Direct liquefaction is least developed. 8 refs.

• Research Organization: Gulf Res and Dev Co, Pittsburgh, PA
• OSTI ID: 5490150
• Journal Information: Hydrocarbon Process.; (United States), Journal Name: Hydrocarbon Process.; (United States) Vol. 60:11; ISSN HYPRA
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
ALCOHOLS
CHEMICAL REACTIONS
COAL GASIFICATION
COAL LIQUEFACTION
COMPARATIVE EVALUATIONS
ECONOMICS
EFFICIENCY
EXXON LIQUEFACTION PROCESS
FISCHER-TROPSCH SYNTHESIS
GASIFICATION
H-COAL PROCESS
HYDROXY COMPOUNDS
INVESTMENT
LIQUEFACTION
LURGI PROCESS
METHANOL
MOBIL M-GASOLINE PROCESS
ORGANIC COMPOUNDS
SHELL-KOPPERS GASIFICATION PROCESS
SRC-II PROCESS
SYNTHESIS
THERMAL EFFICIENCY
THERMOCHEMICAL PROCESSES
THERMODYNAMICS
YIELDS