White Oil Making Patents (Class 208/268)
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Patent number: 7851663Abstract: A method for producing petroleum jelly from hydrocarbons. The method converts the hydrocarbon source into a synthesis gas. The synthesis gas is converted into at least a light-hydrocarbons stream and a heavy-hydrocarbons stream, which both include a plurality of paraffins and a plurality of olefins. The plurality of paraffins is reacted with the plurality of olefins in the presence of a dialkyl peroxide initiator to form the petroleum jelly.Type: GrantFiled: April 16, 2007Date of Patent: December 14, 2010Assignee: Syntroleum CorporationInventor: Ramin Abhari
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Patent number: 6508931Abstract: A process for the production of white oil includes adding a supercritical fluid (propane, butane or carbon dioxide) to the base oil and hydrogen injected into a reactor for hydrogenation. The base oil and supercritical fluid use high-pressure injector pumps as the feed system. The feed system for hydrogen uses a high-pressure compressor to compress hydrogen from a hydrogen tank to a storage tank, then a mass flow controller is used to steadily feed the hydrogen. A static mixer mounted in line, upstream from the inlet of the reactor mixes the reactant well. Several thermocouples are connected to the reactor, inlet and outlet of said reactor to measure the temperatures of the reaction. The detected data from the thermocouples are transferred to a six-point thermograph. The pressure of the reaction is maintained by a back pressure regulator that is mounted downstream from the outlet of said reactor. After the hydrogenation reaction is complete, the pressure of the fluid in the outlet of the reactor is reduced.Type: GrantFiled: October 31, 2000Date of Patent: January 21, 2003Assignee: Chinese Petroleum CorporationInventors: Wen-Fa Lin, Jen-Min Chen, Jun-Yi Chen, Kuang-Hua Tsai
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Patent number: 6187176Abstract: A three stage process for producing high quality white oils, particularly food grade mineral oils from mineral oil distillates. The first reaction stage preferably employs a sulfur resistant hydrotreating catalyst and produces a product suitable for use as a high quality lubricating oil base stock. The second reaction stage preferably employs a hydrogenation/hydrodesulfurization catalyst combined with a sulfur sorbent and produces a product stream which is low in aromatics and which has substantially “nil” sulfur. The final reaction stage employs a selective hydrogenation catalyst that produces a product suitable as a food grade white oil.Type: GrantFiled: August 22, 1997Date of Patent: February 13, 2001Assignee: Exxon Research and Engineering CompanyInventors: Sylvain Hantzer, Alberto Ravella, Ian A. Cody, Darryl P. Klein
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Patent number: 5453176Abstract: A process is disclosed for producing an isoparaffin white oil by contacting a refinery stream, in the presence of hydrogen, with a catalyst comprising an intermediate pore size silicoaluminophosphate molecular sieve and a hydrogenation component to form a dewaxed oil product. The dewaxed oil product is then contacted with a hydrogenation catalyst to produce a hydrogenated oil product which is then treated to remove aromatics to produce an isoparaffin white oil.Type: GrantFiled: October 13, 1993Date of Patent: September 26, 1995Inventors: Bruce A. Narloch, Michael A. Shippey, Malcolm W. Wilson
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Patent number: 5019662Abstract: A process for the production of hydrocarbon white oil by means of hydrogenating a heavy aromatic alkylate is disclosed. The process is characterized in that its feedstock is a previously undesired heavy hydrocarbon byproduct of aromatic alkylation. A white oil derived from such a process has good color and odor properties and results in a superior white oil lubricant.Type: GrantFiled: February 23, 1990Date of Patent: May 28, 1991Assignee: UOPInventors: Bipin V. Vora, Dusan J. Engel
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Patent number: 4786402Abstract: Medicinal white oils and medicinal paraffins are prepared from petroleum fractions containing aromatics and nitrogen, oxygen and sulfur compounds, e.g. light and heavy atmospheric gas oils, vacuum gas oils and residues, which have been pretreated in a first stage by acid treatment or catalytic hydrogenation, by hydrogenation in a second stage over a nickel-containing catalyst under from 50 to 200 bar and at elevated temperatures, by a process in which the catalyst used in the second stage and present in the oxide form is reduced with a hydrogen-containing gas, passivated and then again activated with hydrogen, before the hydrogenation to medicinal white oils or paraffins is carried out.Type: GrantFiled: August 6, 1987Date of Patent: November 22, 1988Assignee: BASF AktiengesellschaftInventors: Thomas Anstock, Walter Himmel, Matthias Schwarzmann, Heinz Dreyer, Ulrich Lebert, Ansgar Eisenbeis
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Patent number: 3931350Abstract: In a process for producing alkylaromatics by halogenating a paraffin and reacting the halogenated paraffin with an aromatic hydrocarbon, the rate of halogenation is improved by treating the n-paraffin to selectively remove oxygen-containing hydrocarbonaceous compounds from the n-paraffin with a sorbent selective for such oxygen-containing compounds, and subsequently halogenating the treated n-parffin. The improvement is particularly useful in producing alkylaromatic hydrocarbons from monocyclic aromatic compounds and n-paraffins.Type: GrantFiled: March 25, 1974Date of Patent: January 6, 1976Assignee: Universal Oil Products CompanyInventor: Allen K. Sparks