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Class 208/365 - With heat recovery by indirect heat exchange


Subclass of Class 208 - Mineral oils: processes and products
Definition: Processes wherein the distilland is heated by indirect contact
No. of patents: 29
Last issue date: 02/24/2009


NumberTitleIssue Date
7494584Energy efficient method for exothermic reactions
An energy efficient process scheme for a highly exothermic reaction-distillation system in which the reactor is external to the distillation column and the feed to the reactor is a mixture of at least one liquid product stream from the distillation column with or wi...
02/24/2009
7320745Energy efficient method for exothermic reactions
An energy efficient process scheme for a highly exothermic reaction-distillation system in which the reactor is external to the distillation column and the feed to the reactor is a mixture of at least one liquid product stream from the distillation column with or wi...
01/22/2008
7172686Method of increasing distillates yield in crude oil distillation
Methods of separating components of a mixture, such as crude oil, are disclosed which increase the yield of individual components while decreasing the yield of residue. In one method, a heated mixture is fed to a column, a vapor stream is withdrawn from the column a...
02/06/2007
6841064Process for the gentle flash distillation of residual oils
Residual oil from the processing of crude oil, natural bitumen or oil sand is mixed in a mixer with granular, hot coke as heat carrier (heat carrier coke) in a weight ratio of 1:3 to 1:30, where on the granules of the heat carrier coke there is first of all formed a...
01/11/2005
6554995Method of separating petroleum-containing material into fractions, extraction system, and extraction fluid therefor
A method of separating a petroleum-containing material into at least two fractions, an extraction system, and an extraction fluid therefor are provided. Petroleum-containing material as well as a solvent mixture comprising 50%-99% by volume sub-critical c...
04/29/2003
6413415Method for high-temperature short-time distillation of residual oils
High temperature flash distillation, for treating residual oils originating from crude oil refining, natural bitumen and/or tar sands, comprises feeding the oil to a mixer with granular hot coke, which serves as a thermal transfer medium. In mixing, 60-90...
07/02/2002
5456823Process for dehydration and/or desalination and for simultaneous fractionation of a petroleum deposit effluent
A process for the dehydration and/or desalination and simultaneous fractionation of a petroleum deposit effluent containing oil, associated gas and water which can be saline, which process comprises: (a) at least one step for separating the liquid and gaseous ...
10/10/1995
5389242Process for the fractionation of oil and gas on a petroleum deposit effluent
A description is given of a process for the fractionation of oil and gas on a petroleum deposit effluent, including: (a) a stage wherein the liquid and gaseous phases are separated at the gas evacuation pressure P1, producing a gaseous fraction G1, on the one ...
02/14/1995
5306419Used lubricating oil reclaiming
A used lubricating oil comprising lube oil additives, including zinc dithiophosphate is subjected to reclaiming. Zinc dithiophosphate is thermally decomposed at a temperature of 400° F. (204° C.) to 1000° F. (538° C.) for a residence time of 10 to 120...
04/26/1994
5180474Method of separation of aromates by extractive distillation
A method of separation of aromates from hydrocarbon mixtures by extractive distillation with a selective solvent, includes introducing a hydrocarbon mixture into the extractive distillation column, distillating out non-aromate components of the introduced...
01/19/1993
5110447Process and apparatus for partial upgrading of a heavy oil feedstock
The invention involves visbreaking heavy oil under mild conditions in a vertical vessel containing a vertical elongate ring spaced inwardly from the vessel wall to form an outer open-ended annular chamber and an inner open-ended soak chamber. Heavy oil at...
05/05/1992
5105041Effluent separation method for aromatic hydrocarbon alkylation process
A process for the production of alkylaromatic hydrocarbons uses a working fluid to reduce the costs of separating an unreacted aromatic feed substrate from aromatic hydrocarbon products. Unreacted aromatic substrate is combined with a light hydrocarbon, s...
04/14/1992
5039396Hydrotreater feed/effluent heat exchange
A heat integrated hydrotreating process has been invented. The feedstock is a cracked hydrocarbon stock which is mixed with hydrogen to suppress coking before heating in a multiple tube furnace to reactor inlet temperature. A minor portion of the feedstoc...
08/13/1991
4925535Process for the production of an aromate concentrate suitable for use as blending component for gasification fuel
The process for production of an aromate concentrate for use as a blending component for gasification fuel includes subjecting another feed hydrocarbon mixture to an extractive distillation using N-substituted morpholines as selective solvent in a extract...
05/15/1990
4885424Effluent separation method for aromatic hydrocarbon alkylation process
A process for the production of alkylaromatic hydrocarbons uses a light hydrocarbon recycle to reduce the costs of separating an unreacted aromatic feed substrate from aromatic hydrocarbon products. Unreacted aromatic substrate is combined with a light hy...
12/05/1989
4830711Installation for separating a solvent from a mixture of solvent and hydrocarbons
A method of and system for recovering a solvent from a mixture of solvent and hydrocarbons, the system comprising at least two evaporation flasks successively fed with a charge consisting of said mixture to be separated, at least one steam generator perfo...
05/16/1989
4661242Diluent distillation process and apparatus
An improvement in a process for the treatment of heavy oil in which a hydrocarbon diluent is subjected to distillation prior to its addition to a heavy oil production stream, to remove at least some of the light components in the diluent that would otherw...
04/28/1987
4471619Fractionation process with power generation by depressurizing the overhead vapor stream
A process is disclosed in which the overhead vapor stream of a fractionation column is utilized as the working fluid which is depressurized to drive a turbine. The turbine may be used to generate electricity which is then used within the fractionation pro...
09/18/1984
4457829Temperature control method for series-connected reactors
A method for controlling the temperature and composition of a vapor feedstream into a second reactor connected in series flow arrangement with a first reactor. The effluent stream from the first reactor containing vapor and liquid fractions is first coole...
07/03/1984
4428201Power generation with fractionator overhead vapor stream
A method is disclosed for recovering useful energy from the overhead stream of a fractionation column. A high efficiency for the overall process is achieved by first removing heat from the overhead stream by vaporizing an expansion turbine working fluid s...
01/31/1984
4428203Power generation using fractionation column reboiler systems
A process is disclosed for generating steam or electrical power from surplus heat transferred to the total bottoms liquid of a fractionation column. Preferably the reboiler of the column is supplied with more fuel than required in the operation of the col...
01/31/1984
4293402Hydrocarbon heating
Hydrocarbons are preheated, particularly for a hydrodesulfurization process by first heating the hydrocarbon stream to produce a vapor and a liquid stream, thereafter superheating at least some of the vapor phase and mixing the superheated vapor phase wit...
10/06/1981
4260476Separation of aromatic hydrocarbons from petroleum fractions
An improvement to a continuous solvent extraction-steam-distillation process for the recovery of aromatic hydrocarbons in the range of C6 -C16 from a feed stream containing such aromatics and aliphatic hydrocarbons in the range of C
04/07/1981
4246073Process of distillation of a multicomponent hydrocarbon mixture
A process for distilling multicomponent hydrocarbon mixtures in which the relative volatility between the dominant component in the lightest product and the dominant component in the heaviest component is between 1.10 and 7. The hydrocarbon mixture is fed...
01/20/1981
4189616Maximum utilization of energy in isoparaffin recycle in alkylation
In a fractionation system wherein a stream of heat-containing fluid is taken from a zone effecting at least a partial control of at least one operating condition in said zone by withdrawing said fluid at a rate responsive to and correlated with a change i...
02/19/1980
4116821Method and apparatus for processing a petroleum production stream
A method and apparatus for processing a petroleum production stream at a remote location, e.g., offshore platform, to produce a liquid product stream having a stabilized vapor pressure, and a gas product stream having a stabilized, low dew point temperatu...
09/26/1978
4082653Crude oil distillation process
Heated hydrocarbon crude oil is passed into a first flash zone wherein it is separated into a first flash vapor and a first flash liquid. First flash vapor is water washed to remove soluble contaminants, and the resulting wash water and the first flash li...
04/04/1978
4033857Fluidized catalytic cracking process with improved light cycle gas oil stripping
The present application discloses a fluidized catalytic cracking process wherein light cycle gas oil is stripped of heavy naphtha components employing reboiled light cycle gas oil as stripping vapor. Heavy naphtha vapors stripped from the light cycle gas ...
07/05/1977
3968030Method and an installation for improving the energy balance of installations for processing chemical process streams and especially petroleum refineries
In a chemical processing plant such as a petroleum refinery, provision is made for steam boilers and heating furnaces in which the energy consumed by the boilers for generating steam exceeds the energy consumed by the heating furnaces. The steam is produc...
07/06/1976
 
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