Process for cooling raw gas obtained from partial oxidation of carbon-containing material
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United States of America Patent
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Jun 26, 1990
Grant Date -
N/A
app pub date -
Jul 21, 1988
filing date -
Jul 28, 1987
priority date (Note) -
Expired
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Abstract
The process for cooling raw gas obtained from partial oxidation of carbon-containing material by way of the fluidized-bed method, the fixed-bed method or the entrained-bed method at temperatures above 700.degree. C. and pressures ranging from 1 to 120 bar, the carbon-containing material being coal, peat or any other carbon-containing solid, while the oxidizing agent is oxygen, air, water and/or another oxygen-containing matter, to provide a solution to the problem of avoiding fouling and corrosion downstream heat exchangers. This aim is achieved in that raw gas is cooled direct to temperatures ranging from 100.degree.-500.degree. C. in a downstream fluidized-bed cooler using solid additives such as sand.
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