Process for purifying exhaust gases, especially from vacuum pyrolysis installations
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United States of America Patent
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Oct 17, 1995
Grant Date -
N/A
app pub date -
Jun 6, 1994
filing date -
Mar 13, 1992
priority date (Note) -
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Abstract
A process for purifying exhaust gases, especially from vacuum pyrolysis installations by means of the extraction of the exhaust gases and their combustion with a supply of air. Immediately after their formation, the exhaust gases are subjected to complete combustion with a controlled air supply and an under pressure of 0.5 to 0.95 bar (500 to 50 mbar absolute) generated by a vacuum pump, whereupon the gaseous reaction products are cooled to 10.degree. to 25.degree. C. to prevent damage to the vacuum pump and then the cooled gaseous reaction products are extracted by the vacuum pump.
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