Patents by Inventor Jerome F. Mayer
Jerome F. Mayer has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20130212930Abstract: In one aspect, a method for rendering biomass-derived pyrolysis oil miscible with refinery hydrocarbons comprises mixing a high oxygen content bio-oil having an oxygen content of at least about 10 wt. % with a low oxygen content bio-oil having an oxygen content of less than about 8 wt. % to produce a blended oil. The blended oil may be hydrotreated to produce a deoxygenated hydrotreated mixture from which water is removed using a separator, resulting in a low oxygen content hybrid bio-oil intermediate miscible in refinery process streams. A portion of the low oxygen content hybrid bio-oil intermediate may be recycled with the high oxygen content bio-oil or removed for use in a refinery process stream for further hydroprocessing.Type: ApplicationFiled: September 28, 2012Publication date: August 22, 2013Applicant: Chevron USA, Inc.Inventors: Douglas G. Naae, Jason C. Hicks, Jerome F. Mayer, Horacio Trevino, Jose I. Villegas
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Patent number: 7884138Abstract: A process is described by which an olefinic naphtha and a hydrogenated distillate fuel are made from a Fischer-Tropsch process. The olefinic naphtha is suitable for use in an ethylene cracker where the olefins enhance the formation of ethylene. Thy hydrogenated distillate fuel is used in jet and or diesel fuels. Optionally the olefinic naphtha has a low content of acids. This low acid content, is obtained by operating the Fischer-Tropsch unit at H2/CO ratios from 1.8 to 2.05 or treating the effluent from the Fischer-Tropsch unit with a metal oxide to remove the acids.Type: GrantFiled: December 14, 2007Date of Patent: February 8, 2011Assignee: Chevron U.S.A. Inc.Inventors: Jerome F. Mayer, Dennis J. O'Rear
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Publication number: 20080319094Abstract: A process is described by which an olefinic naphtha and a hydrogenated distillate fuel are made from a Fischer-Tropsch process. The olefinic naphtha is suitable for use in an ethylene cracker where the olefins enhance the formation of ethylene. Thy hydrogenated distillate fuel is used in jet and or diesel fuels. Optionally the olefinic naphtha has a low content of acids. This low acid content, is obtained by operating the Fischer-Tropsch unit at H2/CO ratios from 1.8 to 2.05 or treating the effluent from the Fischer-Tropsch unit with a metal oxide to remove the acids.Type: ApplicationFiled: December 14, 2007Publication date: December 25, 2008Inventors: Jerome F. Mayer, Dennis J. O'Rear
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Publication number: 20070278134Abstract: A process is disclosed for producing light neutral base oil having a VI greater than 120 comprising the steps of contacting a hydrocarbonaceous feedstock with a catalyst comprising a low acidity, highly dealuminated ultrastable Y zeolite and a catalytic amount of hydrogenation component to produce a converted fraction and an unconverted fraction boiling above 700° F.; recovering at least a portion of the unconverted fraction; dewaxing at least a portion of the unconverted fraction; separating at least a portion of the dewaxed unconverted fraction into a least a first distillate fraction and a second distillate fraction, said first distillate fraction comprising a lubricating base oil having a viscosity of from about 3 cSt to about 6 cSt at 100° C. and said second distillate fraction having a viscosity of greater than about 6 cSt at 100° C.; and recovering at least a portion of the first distillate fraction.Type: ApplicationFiled: June 1, 2006Publication date: December 6, 2007Inventors: Hye Kyung Timken, Jerome F. Mayer, Arthur J. Dahlberg, Andrew Rainis
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Patent number: 7238277Abstract: In the refining of crude oil, hydroprocessing units such as hydrotreaters and hydrocrackers are used to remove impurities such as sulfur, nitrogen, and metals from the crude oil. They are also used to convert the feed into valuable products such as naphtha, jet fuel, kerosene and diesel. The current invention provides very high to total conversion of heavy oils to products in a single high-pressure loop, using multiple reaction stages. The second stage or subsequent stages may be a combination of co-current and counter-current operation. The benefits of this invention include conversion of feed to useful products at reduced operating pressures using lower catalyst volumes. Lower hydrogen consumption also results. A minimal amount of equipment is employed. Utility consumption is also minimized.Type: GrantFiled: December 16, 2004Date of Patent: July 3, 2007Assignee: Chevron U.S.A. Inc.Inventors: Arthur J. Dahlberg, Ujjal K. Mukherjee, Jerome F. Mayer, Wai Seung W. Louie
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Patent number: 7150823Abstract: Novel methods of treating a Fischer-Tropsch derived hydrocarbon stream with an active filtering catalyst are disclosed. Such methods are capable of removing soluble (and ultra-fine particulate) contamination, fouling agents, and/or plugging precursors from the Fischer-Tropsch derived hydrocarbon stream such that plugging of the catalyst beds of a subsequent hydroprocessing process is substantially avoided.Type: GrantFiled: July 2, 2003Date of Patent: December 19, 2006Assignee: Chevron U.S.A. Inc.Inventors: Jerome F. Mayer, Andrew Rainis, Richard O. Moore, Jr.
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Publication number: 20040256287Abstract: Waxy hydrocarbon feedstocks are contacted with a hydrocracking catalyst and the effluent then contacted with an intermediate pore size molecular sieve hydroisomerization catalyst. The effluent from the hydroisomerization is fractionated to provide a heavy fraction and a middle distillate fuel. At least a portion of the heavy fraction is dewaxed to provide a high quality lubricant base oil with a high viscosity index and a low pour point.Type: ApplicationFiled: June 19, 2003Publication date: December 23, 2004Inventors: Stephen J. Miller, Dennis J. O'Rear, John M. Rosenbaum, Jerome F. Mayer, Christopher A. Simmons
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Publication number: 20040256286Abstract: Waxy hydrocarbon feedstocks are contacted with a hydrocracking catalyst and the effluent then contacted with an intermediate pore size molecular sieve hydroisomerization catalyst. The effluent from the hydroisomerization is fractionated to provide a heavy fraction and a middle distillate fuel. A high quality lubricant base oil with a high viscosity index and a low pour point is isolated from the heavy fraction.Type: ApplicationFiled: June 19, 2003Publication date: December 23, 2004Inventors: Stephen J. Miller, Dennis J. O'Rear, John M. Rosenbaum, Jerome F. Mayer, Christopher A. Simmons
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Publication number: 20040232045Abstract: A process for producing a premium Fischer-Tropsch diesel fuel which comprises (a) hydroprocessing a waxy Fischer-Tropsch feed to remove the oxygenates that are present in the feed, whereby a first Fischer-Tropsch intermediate product is produced with reduced olefins and oxygenates relative to the Fischer-Tropsch feed; (b) separating the first Fischer-Tropsch intermediate product in a separation zone into a heavy Fischer-Tropsch fraction and a light Fischer-Tropsch fraction under controlled separation conditions; (c) hydroisomerizing the heavy Fischer-Tropsch fraction to improve the cold flow properties of the heavy Fischer-Tropsch fraction and recovering an isomerized heavy Fischer-Tropsch fraction; (d) mixing the isomerized heavy Fischer-Tropsch fraction with at least a portion of the light Fischer-Tropsch fraction of (b); and (e) recovering from the blend a Fischer-Tropsch derived diesel product meeting a target value for at least one pre-selected specification for diesel fuel.Type: ApplicationFiled: June 30, 2004Publication date: November 25, 2004Applicant: Chevron U.S.A. Inc.Inventors: Christopher A. Simmons, David R. Johnson, Jerome F. Mayer, John M. Rosenbaum, Richard O. Moore, Russell R. Krug
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Patent number: 6783660Abstract: The instant invention comprises a hydroprocessing method having at least two stages. The first stage employs a hydroprocessing catalyst which may contain hydrotreating catalyst, hydrocracking catalyst, or a combination of both. The second stage is limited to hydrocracking. Conversion in the second stage may be improved by the addition of multiple reaction zones for hydrocracking, with flash separation zones between the stages. Middle distillate yield is thereby increased and the volume of the recycle stream is reduced. This invention reduces the need for equipment which would normally be required for a large recycle stream.Type: GrantFiled: October 25, 2001Date of Patent: August 31, 2004Assignee: Chevron U.S.A. Inc.Inventors: Arthur J. Dahlberg, Jerome F. Mayer
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Publication number: 20040159582Abstract: A process for producing a premium Fischer-Tropsch diesel fuel which comprises (a) hydroprocessing a waxy Fischer-Tropsch feed to remove the oxygenates that are present in the feed, whereby a first Fischer-Tropsch intermediate product is produced with reduced olefins and oxygenates relative to the Fischer-Tropsch feed; (b) separating the first Fischer-Tropsch intermediate product in a separation zone into a heavy Fischer-Tropsch fraction and a light Fischer-Tropsch fraction under controlled separation conditions; (c) hydroisomerizing the heavy Fischer-Tropsch fraction to improve the cold flow properties of the heavy Fischer-Tropsch fraction and recovering an isomerized heavy Fischer-Tropsch fraction; (d) mixing the isomerized heavy Fischer-Tropsch fraction with at least a portion of the light Fischer-Tropsch fraction of (b); and (e) recovering from the blend a Fischer-Tropsch derived diesel product meeting a target value for at least one pre-selected specification for diesel fuel.Type: ApplicationFiled: February 18, 2003Publication date: August 19, 2004Inventors: Christopher A. Simmons, David R. Johnson, Jerome F. Mayer, John M. Rosenbaum
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Publication number: 20030085152Abstract: The instant invention comprises a hydroprocessing method having at least two stages. The first stage employs a hydroprocessing catalyst which may contain hydrotreating catalyst, hydrocracking catalyst, or a combination of both. The second stage is limited to hydrocracking. Conversion in the second stage may be improved by the addition of multiple reaction zones for hydrocracking, with flash separation zones between the stages. Middle distillate yield is thereby increased and the volume of the recycle stream is reduced. This invention reduces the need for equipment which would normally be required for a large recycle stream.Type: ApplicationFiled: October 25, 2001Publication date: May 8, 2003Inventors: Arthur J. Dahlberg, Jerome F. Mayer
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Patent number: 4495061Abstract: An improved hydrocarbon conversion catalyst consisting essentially of: (A) an intermediate pore size silicaceous crystalline molecular sieve component substantially free of any catalytic loading metal; and (B) a matrix consisting essentially of (a) a gel selected from silica-alumina, silica-alumina-titania and silica-alumina-zirconia polygels, and (b) a hydrogenating component; and a process using said catalyst.Type: GrantFiled: September 15, 1981Date of Patent: January 22, 1985Assignee: Chevron Research CompanyInventors: Jerome F. Mayer, Stephen J. Miller
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Patent number: 4390413Abstract: A petroleum distillate feed is upgraded and an olefinic product is produced by contacting the feed with ZSM-5-type zeolite at (1) a temperature in the 500.degree. F.-800.degree. F. range; (2) a pressure below about 13 atmospheres gauge; and (3) an LHSV in the 0.1-15 V/V/Hr range.Type: GrantFiled: October 6, 1980Date of Patent: June 28, 1983Assignee: Chevron Research CompanyInventors: Dennis J. O'Rear, Jerome F. Mayer
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Patent number: 4383913Abstract: A process for producing lubricating oil base stock from a feedstock having a VI of less than 80 to a base stock with a VI of at least 90 with the same boiling range as the feedstock. The feedstock is contacted with a zeolite-containing hydrocracking catalyst in a first zone and an amorphous hydrocracking catalyst in the second zone. Between 25 percent and 75 percent of all hydroconversion takes place in the first zone.Type: GrantFiled: October 9, 1981Date of Patent: May 17, 1983Assignee: Chevron Research CompanyInventors: Bruce E. Powell, Jerome F. Mayer, John A. Zakarian
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Patent number: 4347121Abstract: A process is provided for preparing stable lubricant oil stocks, comprising hydrocracking a hydrocarbonaceous feed to produce a hydrocrackate having a total nitrogen content of less than about 10 ppm by weight, followed by dewaxing and stabilizing the hydrocrackate.Type: GrantFiled: October 9, 1980Date of Patent: August 31, 1982Assignee: Chevron Research CompanyInventors: Jerome F. Mayer, Stephen J. Miller, Dennis J. O'Rear
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Patent number: 4313817Abstract: An improved hydrocarbon conversion catalyst consisting essentially of: (A) a crystalline ZSM-5 zeolitic molecular sieve component substantially free of any catalytic loading metal; and (B) a matrix consisting essentially of (a) a gel selected from silica-alumina, silica-alumina-titania and silica-alumina-zirconia polygels, and (b) a hydrogenating component; and a process using said catalyst.Type: GrantFiled: June 16, 1980Date of Patent: February 2, 1982Assignee: Chevron Research CompanyInventors: Jerome F. Mayer, Stephen J. Miller
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Patent number: 4282085Abstract: A petroleum distillate feed is upgraded and a substantial C.sub.3 -C.sub.4 olefin product fraction produced by contacting the feed with ZSM-5 type zeolite at (1) a temperature in the 500.degree.-800.degree. F. range, (2) a pressure below about 13 atmospheres gauge, and (3) an LHSV in the 0.1-15 V/V/Hr range, and fractionating the effluent product stream.Type: GrantFiled: May 21, 1979Date of Patent: August 4, 1981Assignee: Chevron Research CompanyInventors: Dennis J. O'Rear, Jerome F. Mayer
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Patent number: 4251348Abstract: A petroleum distillate feed is upgraded and a substantial C.sub.3 -C.sub.4 olefin product fraction produced by contacting the feed with ZSM-5 type zeolite at (1) a temperature in the 500.degree.-800.degree. F. range, (2) a pressure below about 13 atmospheres gauge, and (3) an LHSV in the 0.1-15 V/V/Hr range, and fractionating the effluent product stream.Type: GrantFiled: December 26, 1979Date of Patent: February 17, 1981Assignee: Chevron Research CompanyInventors: Dennis J. O'Rear, Jerome F. Mayer
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Patent number: 4171257Abstract: A petroleum distillate feed is upgraded and a substantial C.sub.3 -C.sub.4 olefin product fraction produced by contacting the feed with H-ZSM-5 zeolite at (1) a temperature in the 500.degree.-800.degree. F. range, (2) a pressure below about 13 atmospheres gauge, and (3) an LHSV in the 0.1-15 V/V/Hr range, and fractionating the effluent product stream.Type: GrantFiled: October 23, 1978Date of Patent: October 16, 1979Assignee: Chevron Research CompanyInventors: Dennis J. O'Rear, Jerome F. Mayer