Coal gasification
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United States of America Patent
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Jun 29, 1982
Grant Date -
N/A
app pub date -
Apr 29, 1980
filing date -
Aug 31, 1978
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Method for generating methane or synthesis gas from carbon-containing materials, e.g. coal, by reacting part of the carbon with hydrogen in a hydrogenating gasifier to produce a methane containing gas, and reacting the residual carbon with steam in a steam gasifier to produce a raw gas containing synthesis gas. Features are: (a) The steam gasifier is heated with the raw gas leaving the hydrogenating gasifier. (b) The hydrogen gas entering the hydrogenating gasifier is heated with the raw gas leaving the steam gasifier. (c) The output stage of the steam gasifier is heated electrically. (d) The entire nuclear heat is given off to a steam loop. In addition a methane cracking furnace may be provided with the following features: (a) The methane cracking furnace is heated electrically in the upper temperature range. (b) The raw gas leaving the methane cracking furnace serves for heating the entering methane.
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