Method of manufacturing a gas suitable for the production of energy
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United States of America Patent
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Jun 26, 1990
Grant Date -
N/A
app pub date -
Dec 4, 1987
filing date -
Dec 4, 1986
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention relates to a method of manufacturing a gas suitable for the production of energy, out of coal. The coal is gasified in counterflow with air-blast in a gasifier, and the gas generated is then mixed with a gas containing oxygen, in a ratio such that the quotient CO.sub.2 /CO in the resultant gas does not exceed 0.1, in order to crack tar substances occurring in the gas. The gas is thereafter introduced into a dolomite or lime shaft for removal of sulphur compounds, any remaining tar substances and to gasify any accompanying coal particles not yet gasified.
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