Method of cooling and optionally cleaning a hot gas, especially of a gas generated upon combustion or gasification of carbon-containing fuels
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United States of America Patent
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-
Mar 14, 1995
Grant Date -
N/A
app pub date -
Sep 9, 1993
filing date -
Sep 11, 1992
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In a method of cooling and scrubbing a hot gas a hot gas is supplied with a removal pipe into a scrubber. The hot gas is introduced into at least one liquid bath of the scrubber. The hot gas is forcibly dispersed to form small bubbles over at least a portion of a flow path of the hot gas through the liquid bath. The exterior of the removal pipe is cooled with liquid to be introduced into the liquid bath by guiding the liquid along the exterior of the removal pipe countercurrent to the flow of the hot gas in the removal pipe. The device for performing the method has at least one liquid bath. A removal pipe for removing hot gas from the combustion chamber and guiding it to the liquid bath is provided. At least one flow divider with a plurality of openings is arranged in the flow path of the hot gas. A gas removal device is positioned above the liquid bath for removing the cooled gas exiting from the liquid bath. A first cooling mantle surrounds at a distance the removal pipe and extends over a predetermined length of the removal pipe such that between the removal pipe and the first cooling mantle a first annular space is formed through which fresh liquid is introduced into the liquid bath.
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