Abstract: The present invention provides a process for utilizing one stream from a gas separation unit in an evaporation cooler to provide cool water which is used to cool the feed gas mixture by direct or indirect contact prior to entering the gas separation unit.
Type:
Grant
Filed:
March 18, 1993
Date of Patent:
April 26, 1994
Assignee:
Permea, Inc.
Inventors:
Steven R. Auvil, Rodney J. Allam, Paul A. Webley, Philip J. Young
Abstract: A vapor recovery system for a fuel filling installation in which the recovered air-vapor mixture is pumped to the submerged end of a discharge pipe. The discharge pipe is connected to a closed tube which extends along the bottom of an underground fuel tank. The closed tube has a porosity that generates very small bubbles from the air-vapor mixture that flows through the fuel within the tank. A vent pipe for the underground tank separates air from the air-vapor mixture through decreasing density separation by means of a large cross-section for the vent pipe and by providing baffles in the pipe interior.
Type:
Grant
Filed:
May 22, 1992
Date of Patent:
April 5, 1994
Assignee:
Nuovopignone-Industrie Meccaniche e Fonderia SpA
Abstract: A method and an apparatus for concentrating/purifying a chlorine gas are disclosed in which a pressure swing adsorption method for alternately repeating an adsorbing operation and a desorbing operation employing one or more adsorption towers packed with an adsorbent for adsorbing the chlorine gas are used to obtain a high-purity concentrated/purified chlorine gas and an exhaust gas containing virtually no chlorine gas is obtained from the chlorine gas containing impurities by terminating the adsorption operation when the rate of temperature rise near the outlet end of an adsorption tower due to adsorption of chlorine therein rises above a predetermined amount.
Abstract: An integrated process for treating a vent gas stream containing halogenated organic compounds to produce a clean vent gas with vacuum swing adsorption of the halogenated organic compounds and the recycle of a gaseous stream from the halogenated organic compound recovery section. A liquid sponge oil containing halogenated organic compounds is contacted and admixed with the evacuated effluent from the adsorption zone to prevent the accumulation of normally gaseous hydrocarbonaceous compounds.
Type:
Grant
Filed:
December 10, 1992
Date of Patent:
November 9, 1993
Assignee:
UOP
Inventors:
Robert S. Brasier, Steven P. Lankton, Richard T. Maurer, Kirit M. Patel