White Oil Making Patents (Class 208/268)
  • Patent number: 7851663
    Abstract: 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: Grant
    Filed: April 16, 2007
    Date of Patent: December 14, 2010
    Assignee: Syntroleum Corporation
    Inventor: Ramin Abhari
  • Patent number: 6508931
    Abstract: 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: Grant
    Filed: October 31, 2000
    Date of Patent: January 21, 2003
    Assignee: Chinese Petroleum Corporation
    Inventors: Wen-Fa Lin, Jen-Min Chen, Jun-Yi Chen, Kuang-Hua Tsai
  • Patent number: 6187176
    Abstract: 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: Grant
    Filed: August 22, 1997
    Date of Patent: February 13, 2001
    Assignee: Exxon Research and Engineering Company
    Inventors: Sylvain Hantzer, Alberto Ravella, Ian A. Cody, Darryl P. Klein
  • Patent number: 5453176
    Abstract: 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: Grant
    Filed: October 13, 1993
    Date of Patent: September 26, 1995
    Inventors: Bruce A. Narloch, Michael A. Shippey, Malcolm W. Wilson
  • Patent number: 5019662
    Abstract: 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: Grant
    Filed: February 23, 1990
    Date of Patent: May 28, 1991
    Assignee: UOP
    Inventors: Bipin V. Vora, Dusan J. Engel
  • Patent number: 4786402
    Abstract: 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: Grant
    Filed: August 6, 1987
    Date of Patent: November 22, 1988
    Assignee: BASF Aktiengesellschaft
    Inventors: Thomas Anstock, Walter Himmel, Matthias Schwarzmann, Heinz Dreyer, Ulrich Lebert, Ansgar Eisenbeis
  • Patent number: 3931350
    Abstract: 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: Grant
    Filed: March 25, 1974
    Date of Patent: January 6, 1976
    Assignee: Universal Oil Products Company
    Inventor: Allen K. Sparks