HYDROMETHANATION OF A CARBONACEOUS FEEDSTOCK
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United States of America Patent
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Issued Date -
Feb 21, 2013
app pub date -
Aug 15, 2012
filing date -
Aug 17, 2011
priority date (Note) -
Abandoned
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Abstract
The present invention relates to processes for hydromethanating a carbonaceous feedstock to a methane product stream and electrical power, in which heat energy from the hot methane-enriched synthesis gas is used to generate a dry saturated steam stream, the dry saturated steam stream is converted into a superheated steam stream via pressure drop for feeding into the hydromethanation reactor to satisfy the steam demand of the hydromethanation reaction, and heat generated from a downstream gas methanation processing is recovered to produce a superheated process steam stream which is used to generate the electric power.
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