Class 208/364 - Plural stages of vaporization

Subclass of Class 208 - Mineral oils: processes and products
Definition: Processes wherein the vaporization is carried out in a plurality
No. of patents: 28
Last issue date: 02/27/2007

Number	Title	Issue Date
7182028	System and method for the pyrolization of waste A system for the pyrolization of waste has a combustion chamber with a fuel inlet and a hot gas outlet, a pyrolization chamber separated from the combustion chamber, and a conveyor means positioned within the pyrolization chamber for moving waste from the waste inle...	02/27/2007
7172686	Method 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 In one method, a heated mixture is fed to a column, a vapor stream is withdrawn from the column a...	02/06/2007
6413378	Apparatus for separation and purification of saturated hydrocarbon and method for separation and purification An extractive distillation tower 4 supplied with a feedstock containing butadiene and a solvent and for distilling the feedstock to separate and purify the butadiene. The tower 4 includes sensors 32, 34 for detecting concentrations of specific impurities ...	07/02/2002
5837130	Catalytic distillation refining A process for hydrotreating petroleum fractions early in the refining process by employing catalyst prepared as components of distillation structures or as contained beds of catalyst in atmospheric distillation columns and or side draw columns. For exampl...	11/17/1998
5456823	Process 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
5453177	Integrated distillate recovery process An integrated three-column process for recovering hydrocarbon distillate products from a hydroprocessing or hydrocracking reactor effluent stream and a hydrocarbon distillate product recovery train are disclosed. According to the present recovery process,...	09/26/1995
5435436	Thermomechanically integrated distillation of close-boiling light hydrocarbons A thermomechanically integrated distillation column and method for the separation of ethylene from ethane and other close-boiling light hydrocarbons. The column has a plurality of sections operated at successively lower pressures from a high pressure subc...	07/25/1995
5389242	Process 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
5292429	Process for recovery and treatment of a diverse waste stream A process for removing and recovering specific constituents from a waste stream at higher temperatures than the boiling point of the specific waste within a compound of chemicals and inert materials forming ninety-five (95%) percent of the waste stream in...	03/08/1994
5167773	Distillation tower and sidestream stripper therefor A distillation tower (1) has a plurality of liquid sidestream lines (5, 6, 7) and a multi-stage sidestream stripper (13) which includes a respective stripping section (14, 15, 16) for each sidestream line housed in a common, upright, cylindrical shell (28...	12/01/1992
5105041	Effluent 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
5031754	Method of working up an overhead product of an extractive distillation of a hydrocarbon mixture and apparatus for same A hydrocarbon material of the starting product is separated in an extractive distillation column in which an N-substituted morpholine whose substituents do not have more than seven carbon atoms is used as a selective solvent. The overhead product comes do...	07/16/1991
4885424	Effluent 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
4885063	Method and apparatus for olefin recovery A process and apparatus are disclosed for recovering olefins, particularly C3, C4, and C5 olefins, from gaseous mixture thereof with lower-boiling components. The olefin-containing gas mixtures is compressed and cooled to ...	12/05/1989
4673488	Hydrocarbon-conversion process with fractionator overhead vapor recycle An improved method for processing the effluent of a hydrocarbon conversion zone. The invention is particularly useful in a catalytic reforming reaction, wherein practice of the invention results in an increased recovery of butane and propane. The effluent...	06/16/1987
4623447	Breaking middle phase emulsions Middle phase emulsions are broken by subjecting the emulsion to a first atmospheric distillation step to remove water, followed by a second vacuum distillation step to recover oil. The residue contains the surfactant. The atmospheric distillation is gener...	11/18/1986
4612111	Control of a crude oil preheat furnace The temperature of a crude oil provided from a crude oil preheat furnace to a crude tower is substantially minimized by controlling such temperature so as to maintain a desired minimum overflash flow in the crude tower. Also, the temperature of each of th...	09/16/1986
4464189	Fractional distillation of C₂ /C₃ Hydrocarbons at optimum pressures A method of recovering by distillation the separate components of a hydrocarbon gas mixture comprising ethylene, ethane, propylene and propane which comprises separating the ethylene and ethane as an overhead from a propylene and propane bottom in a first...	08/07/1984
4430102	Fractional distillation of C₂ /C₃ hydrocarbons at optimum pressures A method of recovering by distillation the separate components of a hydrocarbon gas mixture comprising ethylene, ethane, propylene and propane which comprises separating the ethylene as an overhead from an ethane, propylene and propane bottom in a first d...	02/07/1984
4300998	Pre-heat vaporization system A process and system for vaporizing heavy oil prior to thermal cracking in a TRC system having low residence time on the order of 0.05 to 2 seconds, and at a temperature between 1300° and 2500° F....	11/17/1981
4293402	Hydrocarbon 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
4282832	Process for vaporizing a liquid hydrocarbon fuel The object of the invention is to provide a process for vaporizing liquid hydrocarbon fuels efficiently and without the formation of carbon residue on the apparatus used. The process includes simultaneously passing the liquid fuel and an inert hot gas dow...	08/11/1981
4264432	Pre-heat vaporization system A process and system for vaporizing heavy oil prior to thermal cracking to olefins, by flashing with steam in first mixer, superheating the vapor, and flashing in second mixer the liquid from first mixer....	04/28/1981
4174273	Separating exchangers A method for heating crude oil to be processed in a petrochemical installation, comprises successive heat exchangers disposed in series, each heat exchanger using pressurized steam as the heating fluid. Each exchanger has a lower exchange chamber, a liqui...	11/13/1979
4124486	Conversion of asphaltene-containing charge stocks and product separation process A mixture of a hydrocarbon-selective solvent -- e.g. isobutane -- and deasphalted oil is separated in a two-stage hot-separator system at progressively higher temperatures and substantially the same pressure. Resulting vaporous phases are subjected to a c...	11/07/1978
4123349	Separation of solids containing residues from liquid fractions of a coal hydrogenation process using an expansion engine and a pressure release means A process for the separation of solids containing residues from a liquid fraction containing higher boiling fractions produced in a coal hydrogenation process at elevated temperatures and pressures. The separation process involves two expansion steps, one...	10/31/1978
4116821	Method 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
4116816	Parallel hydrodesulfurization of naphtha and distillate streams with passage of distillate overhead as reflux to the naphtha distillation zone In a hydrodesulfurization process having separate naphtha and distillate hydrodesulfurization zones, volatile fractions of the distillate hydrodesulfurization effluent are recycled to the naphtha feed stream before it combines with the hydrogen stream and...	09/26/1978

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Class 208/364 - Plural stages of vaporization