Abstract: Disclosed is a process for removing acid soluble oils, produced as an undesirable by-product of an HF catalyzed alkylation reaction, from a liquid containing a sulfone compound. The process includes the use of a solvent to extract the acid soluble oils from a sulfone-containing fluid that has previously been neutralized by a treating step.
Type:
Grant
Filed:
December 15, 1992
Date of Patent:
November 23, 1993
Assignee:
Phillips Petroleum Company
Inventors:
Alan D. Eastman, Ronald G. Abbott, Robert B. Eldridge, Fu-Ming Lee, David P. Mann, Robert J. Mitchell
Abstract: Method and apparatus are described whereby a caustic-treated hydrocarbon feed mixture having a contaminating concentration of water and sulfur compounds is treated by separating the hydrocarbon feed into a first stream and a second stream. The first stream is contacted with an adsorbent material to produce a reactor feed stream having a significant reduction in the concentration of the contaminating water and sulfur compounds. The reactor feed stream is thereafter contacted in the presence of hydrogen under suitable isomerization conditions with an isomerization catalyst to produce an isomerate product.
Type:
Grant
Filed:
September 3, 1991
Date of Patent:
November 23, 1993
Assignee:
Phillips Petroleum Company
Inventors:
Michael E. Olbrich, Rebecca L. Jones, Roger W. Fenstermaker
Abstract: Apparatus is provided whereby the heat released from exothermic hydrodemetallization reactions is recovered in order to provide either a lower operating cost of a two-stage hydrotreating process or protection of process equipment against excessive operating temperatures.
Abstract: Cracked hydrocarbon gases are treated to remove contaminating compounds that react in caustic wash to form the reaction products which cause equipment fouling. The treating of the cracked hydrocarbon gases includes the contacting of a cracked hydrocarbon stream with an aqueous amine solution, prior to caustic washing, to remove carbonyl compounds contained in the cracked hydrocarbon gases. By treating the cracked hydrocarbons with an amine compound prior to caustic washing, the formation and deposition of fouling compounds upon the internal components of caustic treating equipment is inhibited.
Abstract: A process and apparatus for recovering propane product from HF alkylation process that is substantially free of HF acid. The invention allows for the improvement in the operation of an HF alkylation propane stripper by utilizing a bottoms recycle stream.
Type:
Grant
Filed:
June 1, 1992
Date of Patent:
October 12, 1993
Assignee:
Phillips Petroleum Company
Inventors:
Keith W. Hovis, Henry K. Hachmuth, Michael L. Gray
Abstract: The composition of this invention is a silicated zinc oxide that comprises a co-gelled mixture comprising zinc oxide and silica. This co-gelled mixture is used as a sorbent for removing sulfur compounds from sulfur containing fluids by contacting such fluids with the sorbent. The composition can be prepared by a silicating process wherein the composition is manufactured by silicating zinc oxide to form a co-gelled mixture.
Abstract: Hydrogen sulfide is removed from a fluid stream containing hydrogen sulfide by contacting the fluid stream under suitable absorbing conditions with an absorbing composition consisting essentially of zinc oxide and silica. Additionally, the absorbing composition may contain binders and may be promoted, preferably with nickel oxide.
Type:
Grant
Filed:
April 24, 1992
Date of Patent:
September 28, 1993
Assignee:
Phillips Petroleum Company
Inventors:
Dennis R. Kidd, Gary A. Delzer, Donald H. Kubicek, Paul F. Schubert
Abstract: An etherification process for reacting tertiary olefin compounds with primary alcohols to produce an ether product is described. The etherification process includes two reactor stages for producing ether compounds and providing high conversion across the etherification process of the tertiary olefin compounds at reduced energy consumption.
Abstract: An etherification process for reacting tertiary olefin compounds with primary alcohols to produce an ether product. The etherification process has the advantage of permitting dual operating modes for producing methyl tertiary butyl ether and tert amyl methyl ether and it provides high conversion across the etherification process of the tertiary olefin compounds.
Abstract: A novel integrated olefin processing scheme is provided where olefins and paraffins are processed to produce high octane gasoline blending components. The integrated process involves the dehydrogenation of paraffin compounds to olefin compounds and the processing of olefins by hydroisomerization to produce hydroisomerate streams which are subsequently etherified. Those olefin compounds which are not etherified pass to an alkylation process where they are alkylated with branched chain paraffin compounds to produce an alkylate product.
Type:
Grant
Filed:
June 16, 1992
Date of Patent:
August 17, 1993
Assignee:
Phillips Petroleum Company
Inventors:
Donald J. Makovec, Robert O. Dunn, Martyn E. Pfile, Gary R. Patton, Larry E. Lew
Abstract: Disclosed is a process for removing acid soluble oils, produced as an undesirable by-product of an HF catalyzed alkylation reaction, from a liquid containing a sulfone compound. The process includes the use of water to induce the formation of the two immiscible liquid phases of ASO and sulfone with water. The two immiscible phases can subsequently be separated from each other.
Type:
Grant
Filed:
August 24, 1992
Date of Patent:
August 17, 1993
Assignee:
Phillips Petroleum Company
Inventors:
Alan D. Eastman, Robert B. Eldridge, Richard L. Anderson, David P. Mann
Abstract: A novel composition comprising zinc oxide, zinc phosphate and, optionally, alumina is described which can effectively be used to remove sulfur compounds from a fluid stream by contacting said fluid stream under suitable absorption conditions with the novel composition. A novel method of producing an absorption composition is described where the steps include the formation of a composition comprising zinc oxide, zinc phosphate and, optionally, alumina.
Abstract: An improved system for performing an alkylation process and a method for handling liquid catalyst in an alkylation process. This improvement involves a method and apparatus by which liquid alkylation catalyst contained in alkylation process equipment can be safely stored and isolated from the external environment. Additionally, the apparatus improvement will allow for an improved method for controlling the circulation of liquid alkylation catalyst by providing means for quickly stopping the circulation of alkylation catalyst. The apparatus improvement includes a baffle contained within a vessel which is attached to the bottom of the vessel and extends upwardly into the vessel. The baffle is designed to allow for the liquid flow between the inside of the vessel and the inside of the baffle and it allows for the venting into a vapor space from the top of the baffle. Within the baffle is standpipe which provides for fluid flow from within the baffle to a region outside the vessel.
Abstract: An improved method and apparatus for the safe handling of alkylation catalyst. The method and apparatus comprises a process vessel which serves a dual function of storing alkylation catalyst and of recontacting alkylation hydrocarbon product with alkylation catalyst. Alkylate product is passed through an eductor-mixer device which intimately mixes alkylate with catalyst. This mixture flows into the dual function recontacting vessel where a phase separation of the catalyst and alkylation hydrocarbon product takes place. Conduits are provided to connect the process reactor, cooling heat exchanger, settler, and interconnecting piping so as to allow the quick release of pressure from the combination storage-recontacting vessel and subsequent draining of catalyst into the vessel by use of gravitational force.
Abstract: A novel sorbent comprising zinc oxide and a Group IIA metal silicate. A process for the removal of hydrogen sulfide from a fluid stream that comprises contacting a fluid stream with a novel sorbent. A further feature of this invention includes a novel method for preparing a composition comprising zinc oxide and a Group IIA metal silicate.
Abstract: A sulfur absorbent composition having desirable physical properties and comprising zinc oxide and alumina having been treated with a phosphating agent is disclosed. At least a portion of the alumina component of the absorbent composition undergoes a phosphating treatment. The resulting composition is suitable for use in an H.sub.2 S absorption process.
Abstract: Method and apparatus are provided whereby the heat released from exothermic hydrodemetallization reactions is recovered in order to provide either a lower operating cost of a two-stage hydrotreating process or protection of process equipment against excessive operating temperatures.
Abstract: A novel composition comprising zinc oxide and at least one metal phosphate that can be effectively used to remove sulfur compounds from a fluid stream by contacting said fluid stream under suitable absorption conditions with this novel composition. Also, a novel method is described for making a composition comprising mixing with zinc oxide at least one metal phosphate followed by the addition of a dilute acid to form a paste or paste like material having a desired consistency for agglomeration.
Type:
Grant
Filed:
March 7, 1991
Date of Patent:
December 29, 1992
Assignee:
Phillips Petroleum Company
Inventors:
Ted H. Cymbaluk, Dennis R. Kidd, Gerhard P. Nowack, Gary A. Delzer
Abstract: Catalytic regenerators, nozzle designs and processes suitable for introducing regeneration air into a catalytic cracking unit which substantially reduce erosion induced nozzle failures include a plurality of nozzle elements having a roughness defined upon the outside surface of said nozzle elements so as to reduce erosion due to the impact of fluidized catalyst particles within the catalytic regenerator.
Abstract: A process and apparatus for recovering propane product from HF alkylation process that is substantially free of HF acid. The invention allows for the improvement in the operation of an HF alkylation propane stripper by utilizing a bottoms recycle stream.
Type:
Grant
Filed:
March 27, 1991
Date of Patent:
October 20, 1992
Assignee:
Phillips Petroleum Company
Inventors:
Keith W. Hovis, Henry K. Hachmuth, Michael L. Gray