Condensatin By Direct Heat Exchange Patents (Class 208/368)
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Publication number: 20150031922Abstract: The present invention describes a process and catalysts for the conversion of a light hydrocarbon and carbon dioxide input stream into high quality syngas with the subsequent conversion of the syngas into fuels or chemicals. In one aspect, the present invention provides an efficient, solid solution catalyst for the production of a carbon containing gas from carbon dioxide and light hydrocarbons. The catalyst comprises a single transition metal, and the transition metal is nickel.Type: ApplicationFiled: July 16, 2014Publication date: January 29, 2015Inventors: Robert Schuetzle, Dennis Schuetzle
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Patent number: 7993435Abstract: A process for cracking hydrocarbon feedstock containing resid comprising: heating the feedstock, mixing the heated feedstock with a fluid and/or a primary dilution steam stream to form a mixture, flashing the mixture to form a vapor phase and a liquid phase which collect as bottoms and removing the liquid phase, separating and cracking the vapor phase, and cooling the product effluent, wherein the bottoms are maintained under conditions to effect at least partial visbreaking. The visbroken bottoms may be steam stripped to recover the visbroken molecules while avoiding entrainment of the bottoms liquid. An apparatus for carrying out the process is also provided.Type: GrantFiled: September 15, 2006Date of Patent: August 9, 2011Assignee: ExxonMobil Chemical Patents Inc.Inventors: Richard C. Stell, George J. Balinsky, James N. McCoy, Paul F. Keusenkothen
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Patent number: 7670573Abstract: A process for decoking of a process that cracks hydrocarbon feedstock containing resid and coke precursors, wherein steam is added to the feedstock to form a mixture which is thereafter separated into a vapor phase and a liquid phase by flashing in a flash/separation vessel, separating and cracking the vapor phase, and recovering cracked product. Coking of internal surfaces in and proximally downstream of the vessel is controlled by interrupting the feed flow, purging the vessel with steam, introducing an air/steam mixture to at least partially combust the coke, and resuming the feed flow when sufficient coke has been removed. An apparatus for carrying out the process is also provided.Type: GrantFiled: October 16, 2006Date of Patent: March 2, 2010Assignee: ExxonMobil Chemical Patents Inc.Inventors: Richard C. Stell, Arthur R. Di Nicolantonio, James M. Frye, Subramanian Annamalai, Nicholas G. Vidonic
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Patent number: 7641870Abstract: Hydrocarbon feedstock containing resid is cracked by a process comprising: (a) heating the hydrocarbon feedstock; (b) mixing the heated hydrocarbon feedstock with steam and optionally water to form a mixture stream; (c) introducing the mixture stream to a flash/separation apparatus to form i) a vapor phase at its dew point which partially cracks and loses/or heat causing a temperature decrease and partial condensation of the vapor phase in the absence of added heat to provide coke precursors existing as uncoalesced condensate, and ii) a liquid phase; (d) removing the vapor phase as overhead and the liquid phase as bottoms from the flash/separation apparatus; (e) treating the overhead by contacting with a hydrocarbon-containing nucleating liquid substantially free of resid and comprising components boiling at a temperature of at least about 260° C. (500° F.Type: GrantFiled: January 25, 2008Date of Patent: January 5, 2010Assignee: ExxonMobil Chemical Patents Inc.Inventors: Richard C. Stell, Nicholas G. Vidonic
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Publication number: 20090194461Abstract: The present invention relates to a method for treating a natural gas feed stream, containing >10 mole % CO2, the method at least comprising the steps of separating the feed stream (10) in a first (2) or a second (3) gas/liquid separator, removing from the top of the second gas/liquid separator (3) a gaseous stream (60), partially condensing it by heat exchanging against a cold stream (120) and feeding it (70) into a third gas/liquid separator (4) thereby obtaining a liquid stream (80) and a gaseous stream (90) and feeding the liquid stream (80) having a temperature above the freezing point of CO2 at the prevailing conditions, into the second gas/liquid separator (3) removing from the bottom of the second gas/liquid separator (3) a liquid stream (100, 100a).Type: ApplicationFiled: May 30, 2007Publication date: August 6, 2009Inventors: Eduard Coenraad Bras, Jill Hui Chiun Chieng, Akash Damodar Wani
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Patent number: 7511180Abstract: A process is provided for stabilizing a petroleum liquid feed stream which contains a more volatile hydrocarbon portion, a less volatile hydrocarbon portion and water. The more volatile hydrocarbon portion of the petroleum liquid feed stream is reacted with the water in a fluidized bed heat exchanger to form a solid hydrate and a petroleum liquid product which contains the remaining less volatile hydrocarbon portion of the petroleum liquid feed stream. The petroleum liquid product is separated from the solid hydrate to recover the resulting petroleum liquid product which is substantially less volatile and more stable than the petroleum liquid feed stream and more suitable for storage or transport, particularly at low pressures.Type: GrantFiled: November 19, 2003Date of Patent: March 31, 2009Assignee: Marathon Oil CompanyInventor: John J. Waycuilis
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Patent number: 6280578Abstract: Essence of the invention is a: a liquid, whose saturated vapour pressure is not less than the pressure at the top of a rectification column, is delivered into the nozzle of a liquid-gas jet apparatus as a motive liquid; the pressure maintained in a separator represents from 1.1 to 160 times the pressure of a vapor phase at the inlet of the liquid-gas jet apparatus; condensation of easy-condensable components of the vapor phase in the motive liquid and forming of a liquid-vapor mixture take place after mixing of the vapor phase with the motive liquid; the liquid-vapor mixture is separated in the separator into a compressed gaseous component and a liquid medium. The introduced method results in an increase in efficiency of a pumping-ejector system for the distillation of a liquid product.Type: GrantFiled: December 21, 1998Date of Patent: August 28, 2001Inventor: Serguei A. Popov
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Patent number: 6083380Abstract: A method to condense or coalesce matter is carried out by providing a suitable, narrow passageway for throughput of matter in a vapor state, and passing the matter in a vapor state through said passageway, under conditions such that the matter is coalesced into a more ordered state. Also, a matter coalescing apparatus has a hollow housing in communication with at least one of--(A) a plurality of suitably narrow hollow passageways and (B) a suitably narrow, elongately hollow, matter-coalescing passageway--for throughput of matter to include as a vapor therein. Consequently, highly efficient yields of coalesced matter, to include liquid coalesced from vapor, even under only mild vacuum or at about ambient atmospheric pressure can be obtained. This is especially so with respect to oils, where yields as high as 95 percent or greater can be provided hereby. The invention can be practiced under such outstanding yield efficiencies without a general need for significant external cooling.Type: GrantFiled: April 20, 1995Date of Patent: July 4, 2000Assignee: Tannas Co.Inventors: Theodore W. Selby, Andrew J. Stephenson
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Patent number: 5736031Abstract: A process for separating vaporous mixtures of hydrocarbons, water and emulsifier derived from the remediation of wellbore fluid, such as a mud containing solid particulate material in which the vaporous mixture is quenched with a hydrocarbon stream which is at a temperature above the boiling point of water and below the boiling point of the hydrocarbons in the vaporous stream. Most of the hydrocarbons in the vaporous stream and substantially all of the emulsifier are condensed into the hydrocarbon quench to form an oil stream. The water is recovered from the hydrocarbon quench as a vaporous stream and quenched with water. The quenched water and any residual heavier hydrocarbons are separated by phase separation.Type: GrantFiled: September 26, 1996Date of Patent: April 7, 1998Assignee: Onsite Technology, L.L.C.Inventors: James O. Nye, Robin M. Pate
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Patent number: 5415764Abstract: A process for further processing a residue remaining after vacuum distillation in a crude oil refinery, which entails subjecting the residue remaining after vacuum distillation to flash distillation, thereby producing a distillate and a residue.Type: GrantFiled: November 16, 1993Date of Patent: May 16, 1995Assignee: Buss AGInventor: Rolf Van der Piepen
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Patent number: 5368700Abstract: A system and method for reducing hydrocarbons in wastewater includes an oil separator and a stripper tower. The tower has a housing that includes a stripper section and a condensation section. The stripper section includes a plurality of trays and steam inlet under the trays. The condensation section includes a plurality of trays and a pan tray having provisions to allow vapors to rise from the stripper section. The method includes having the oil separator remove the soluble oil from the wastewater stream which passes through the stripper section and has steam remove the hydrocarbons. The resulting vapors then contact cold process fluid which results in a heated process fluid stream. A portion of this heated process fluid stream is then mixed with crude so that hydrocarbons can be assimilated into the crude.Type: GrantFiled: December 21, 1992Date of Patent: November 29, 1994Assignee: Atlantic Richfield CompanyInventor: David E. Bachmann
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Patent number: 5306419Abstract: 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.degree. F. (204.degree. C.) to 1000.degree. F. (538.degree. C.) for a residence time of 10 to 120 minutes. The resulting oil is subjected to vacuum distillation. A zinc-free (i.e. ash free by ASTM D-482) distillate oil is useful as marine diesel fuel. About 5 to 25 vol % is recovered as a metal containing bottoms product, useful as asphalt extender. The process is carried out in the absence of chemical demetallizing.Type: GrantFiled: August 5, 1993Date of Patent: April 26, 1994Assignee: Texaco Inc.Inventors: Charles W. Harrison, Arthur G. Gorneau, Robert M. Steinberg, Bruce R. Bond
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Patent number: 4661242Abstract: 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 otherwise vaporize in the treatment process. A distillation unit for use in the process is also disclosed.Type: GrantFiled: June 12, 1985Date of Patent: April 28, 1987Assignee: Delta Projects Inc.Inventors: Jeffery E. Scott, David W. McDougall, Robert E. Heigold
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Patent number: 4484984Abstract: A process for the distillation and condensation of a multi-component liquid is described, the process being characterized by the utilization of a portion of the condensate in achieving increased separation of components of no-condensed vapor. In a principal embodiment, the overhead from a distillation column is cooled, condensing a portion thereof, and the condensed portion is accumulated in an accumulation zone. A first liquid stream is removed from the accumulation zone for reflux, while a second liquid stream is cooled, and then contacts, in a separate zone, the uncondensed portion of the overhead. The contacting absorbs and condenses components of the vapor, and the second liquid and absorbed components are collected in the accumulation zone.Type: GrantFiled: May 23, 1983Date of Patent: November 27, 1984Assignee: Shell Oil CompanyInventor: Robert P. Bannon
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Patent number: 4484985Abstract: A process for distilling and condensing a multi-component liquid is described, the process being characterized by the use of a portion of the uncondensed vapor in achieving more efficient heat utilization. In a principal embodiment, the multi-component liquid is distilled to produce an overhead vapor, and the vapor is condensed to produce a condensate and a partially cooled vapor. The partially cooled vapor is separated into major and minor portions, the bulk of the major portion is condensed to produce a condensation effluent, and the condensation effluent (comprising liquid or liquid and vapor) is contacted in a contacting zone with the minor portion of partially cooled vapor. The contacting produces a liquid which is collected in an accumulation zone.Type: GrantFiled: May 23, 1983Date of Patent: November 27, 1984Assignee: Shell Oil CompanyInventor: Robert P. Bannon
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Patent number: 4484986Abstract: A process for distilling and condensing a multi-component liquid is described, the process being characterized by the use of a portion of uncondensed vapor in achieving more efficient heat utilization. In a principal embodiment, a multi-component liquid is distilled to produce an overhead vapor, the vapor is partially condensed, and the vapor-condensate is separated into a minor liquid fraction and a major vapor-liquid portion. The major vapor-liquid fraction is then separated into vapor and liquid, and the liquid therefrom is accumulated in an accumulation zone. The separated vapor is then contacted with the minor liquid fraction in a contacting zone, thereby absorbing the vapor and transferring its heat to the liquid fraction.Type: GrantFiled: May 23, 1983Date of Patent: November 27, 1984Assignee: Shell Oil CompanyInventor: Robert P. Bannon
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Patent number: 4484983Abstract: A process for the distillation and condensation of a multi-component liquid is described, the process being characterized by the contacting of a warm portion of the overhead vapor with a cool liquid portion of the overhead to achieve a higher accumulator liquid temperature. In a principal embodiment, a multi-component liquid is distilled, the overhead vapor is separated into major and minor portions, and the bulk of the major portion is condensed. Liquid is separated from the remaining vapor of the major portion, and the separated liquid is divided into major and minor fractions. The major fraction of liquid is collected in an accumulation zone, and is contacted in the accumulation zone with at least the bulk of the minor portion of overhead vapor. Vapor from the accumulation zone is contacted with the minor fraction of liquid in a contacting zone.Type: GrantFiled: May 23, 1983Date of Patent: November 27, 1984Assignee: Shell Oil CompanyInventor: Robert P. Bannon