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Abstract

The case for producing transport fuels from coal via direct coal liquefaction is based upon the relative abundance of coal compared with crude oil and natural gas. Coal liquefaction offers a strategic approach to securing of a long term supply of liquid fuels which is unlikely to be affected by political events in other regions of the world.

Two-stage direct liquefaction processes are now generally accepted as being the most efficient. The first stage involves coal dissolution in a recycled solvent, the second stage being the hydrocracking of the resultant coal extract solution. Undissolved coal and mineral matter are removed either before or after the hydrocracking step. The efficiency gains over older single stage, processes arise from the ability to optimize coal dissolution and extract hydrocracking separately. All processes benefit if the recycle solvent is a good hydrogen donor. .

Additional information

Authors: BCC, British Coal Corporation, Cheltenham (GB)
Bibliographic Reference: EUR 18247 EN, (1999) 176pp.
Availability: Available from OOPEC Sales agents
ISBN: ISBN 92-828-5444-2
Record Number: 199911015 / Last updated on: 1999-07-23
Category: PUBLICATION
Original language: en
Available languages: en
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