Patents Assigned to Chevron Phillips Chemical Company, LP
  • Patent number: 12275679
    Abstract: Processes for converting a hydrocarbon reactant into an alcohol compound and/or a carbonyl compound are disclosed in which the hydrocarbon reactant and a supported transition metal catalyst—containing molybdenum, tungsten, or vanadium—are irradiated with a light beam at a wavelength in the UV-visible spectrum, optionally in an oxidizing atmosphere, to form a reduced transition metal catalyst, followed by hydrolyzing the reduced transition metal catalyst to form a reaction product containing the alcohol compound and/or the carbonyl compound.
    Type: Grant
    Filed: May 9, 2024
    Date of Patent: April 15, 2025
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Masud M. Monwar, Jared L. Barr, Carlos A. Cruz, Kathy S. Clear, Max P. McDaniel, William C. Ellis
  • Patent number: 12275809
    Abstract: Ethylene-based polymers having a density of 0.952 to 0.968 g/cm3, a ratio of HLMI/MI from 185 to 550, an IB parameter from 1.46 to 1.80, a tan ? at 0.1 sec?1 from 1.05 to 1.75 degrees, and a slope of a plot of viscosity versus shear rate at 100 sec?1 from 0.18 to 0.28 are described, with low melt flow versions having a HLMI from 10 to 30 g/10 min and a Mw from 250,000 to 450,000 g/mol, and high melt flow versions having a HLMI from 30 to 55 g/10 min and a Mw from 200,000 to 300,000 g/mol. These polymers have the processability of chromium-based resins, but with improved stress crack resistance and topload strength for bottles and other blow molded products.
    Type: Grant
    Filed: October 16, 2023
    Date of Patent: April 15, 2025
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Jeremy M. Praetorius, Yongwoo Inn, Alfred E. Brown, Jr., Brandy Rutledge-Ryal, Carlos A. Cruz, Jay M. Chaffin
  • Patent number: 12269911
    Abstract: Methods for making titanated silica supports, titanated chromium/silica pre-catalysts, and activated titanated chromium/silica catalysts are disclosed in which hydrogen peroxide and an alkali metal precursor are used during catalyst preparation. Resulting titanated chromium/silica pre-catalysts often contain silica, 0.1 to 5 wt. % chromium, 0.1 to 10 wt. % titanium, and less than or equal to 4 wt. % carbon, and further contain an alkali metal or zinc at a molar ratio of alkali metal:titanium or zinc:titanium from 0.02:1 to 3:1 and/or at an amount in a range from 0.01 to 2 mmol of alkali metal or zinc per gram of the silica. High melt index potential activated titanated chromium/silica catalysts can be used to polymerize olefins to produce, for example, ethylene based homopolymers and copolymers having HLMI values of greater than 30 g/10 min.
    Type: Grant
    Filed: April 25, 2023
    Date of Patent: April 8, 2025
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Anand Ramanathan, Max P. McDaniel, Jared Barr, Andrew Blagg, Christopher E. Wittner, Alan L. Solenberger, Zachary T. Kilpatrick, Micheal P. Stevens
  • Patent number: 12269796
    Abstract: Isomerized olefin products are produced by contacting an olefin feed containing a C10 to C20 normal alpha olefin, a solid acid catalyst, and a C2 to C15 primary ester to form the isomerized olefin product. Typical primary esters used in the processes include formates and acetates. Linear olefin compositions are produced that contain at least 80 wt. % C10 to C20 linear internal olefins, less than 8 wt. % C10 to C20 normal alpha olefins, less than 8 wt. % dimers of C10 to C20 olefins, less than 15 wt. % C10 to C20 branched olefins, and at least 1 wt. % C2 to C15 primary ester and less than 8 wt. % secondary esters.
    Type: Grant
    Filed: November 3, 2023
    Date of Patent: April 8, 2025
    Assignee: Chevron Phillips Chemical Company LP
    Inventor: Jeffery C Gee
  • Patent number: 12252558
    Abstract: Apparatuses and processes that produce multimodal polyolefins, and in particular, polyethylene resins, are disclosed herein. This is accomplished by using two reactors in series, where one of the reactors is a multi-zone circulating reactor that can circulate polyolefin particles through two polymerization zones optionally having two different flow regimes so that the final multimodal polyolefin has improved product properties and improved product homogeneity.
    Type: Grant
    Filed: November 3, 2023
    Date of Patent: March 18, 2025
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Joseph A. Curren, Rebecca A. Gonzales, Scott E. Kufeld, Joel A. Mutchler, Eric J. Netemeyer, Jamie N. Sutherland, Paul J. Deslauriers, Jeffrey S. Fodor
  • Publication number: 20250084327
    Abstract: Described are new processes for making sustainable jet fuels and components thereof, based upon generating bio-ethylene by dehydration of biomass ethanol or a bio-syngas ethanol, and subsequently employing a tailored selection of oligomerization, cyclization, and hydrogenation reactions to generate each class of compounds which can be used as components in a sustainable aviation fuel. For example bio-ethylene oligomerization can provide olefin oligomers which can be hydrogenated to linear and branched paraffins, these paraffins can be cyclized to form bio-sourced aromatic compounds which subsequently can be hydrogenated to form cycloparaffins or naphthenes. These compounds can be blended to provide sustainable products in the kerosene jet fuel range (C8-C16) or wide-cut jet fuel range (C5-C15 or C4-C16).
    Type: Application
    Filed: September 7, 2023
    Publication date: March 13, 2025
    Applicant: Chevron Phillips Chemical Company LP
    Inventors: Reza KHANKAL, Michael S. WEBSTER-GARDINER, James HILLIER, Jared FERN
  • Publication number: 20250084331
    Abstract: Process for making sustainable aviation fuel (SAF) from specific bio-ethylene oligomerization reactions producing a C4-C8 alpha-olefin and a by-product mixture of C10 olefins. This mixed decene stream is upgraded by further oligomerizing with at least one C4-C6 alpha-olefin to provide a C16? olefin stream, which is hydrogenated to C16? paraffins which is used to form a SAF. Employing bio-ethylene to produce the mixed decene stream, which is relatively low-value due in part to its non-selectivity, leverages that non-selectivity into a desirable sustainable aviation fuel product where the low selectivity is preferable. These and other embodiments and aspects are described herein.
    Type: Application
    Filed: September 7, 2023
    Publication date: March 13, 2025
    Applicant: CHEVRON PHILLIPS CHEMICAL COMPANY LP
    Inventors: Michael S. Webster-Gardiner, James Hiller, Reza Khankal, Jared Fern
  • Patent number: 12246312
    Abstract: Disclosed herein are methods for preparing fluorided solid oxides by contacting an acidic fluorine-containing compound with an inorganic base to form an aqueous mixture having a pH of at least 4, followed by contacting a solid oxide with the aqueous mixture to produce the fluorided solid oxide. Also disclosed are methods for preparing fluorided solid oxides by contacting an acidic fluorine-containing compound with a solid oxide to produce a mixture, followed by contacting the mixture with a inorganic base to produce the fluorided solid oxide at a pH of at least about 4. The fluorided solid oxide can be used as an activator component in a catalyst system for the polymerization of olefins.
    Type: Grant
    Filed: April 18, 2024
    Date of Patent: March 11, 2025
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Max P. McDaniel, Kathy S. Clear, Qing Yang, Tony R. Crain
  • Patent number: 12240964
    Abstract: Disclosed herein are ethylene-based polymers generally characterized by a melt index of less than 15 g/10 min, a density from 0.91 to 0.945 g/cm3, a CY-a parameter at 190° C. from 0.2 to 0.6, an average number of long chain branches per 1,000,000 total carbon atoms of the polymer in a molecular weight range of 500,000 to 2,000,000 g/mol of less than 5, and a maximum ratio of ??/3? at an extensional rate of 0.03 sec?1 in a range from 3 to 15. The ethylene polymers have substantially no long chain branching in the high molecular weight fraction of the polymer, but instead have significant long chain branching in the lower molecular weight fraction, such that polymer melt strength and bubble stability are maintained for the fabrication of blown films and other articles of manufacture.
    Type: Grant
    Filed: May 14, 2024
    Date of Patent: March 4, 2025
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Errun Ding, Chung Ching Tso, Max P. McDaniel, Ashish M. Sukhadia, Youlu Yu, Randall S. Muninger, Aaron M. Osborn, Christopher E. Wittner
  • Patent number: 12240933
    Abstract: Methods for preparing a metallocene-based catalyst composition that can impact the long chain branching of ethylene homopolymers and copolymers produced using the catalyst composition are described. The catalyst composition can be prepared by contacting a metallocene compound, a hydrocarbon solvent, and a first organoaluminum compound for a first period of time to form a metallocene solution, and then contacting the metallocene solution with an activator-support and a second organoaluminum compound for a second period of time to form the catalyst composition.
    Type: Grant
    Filed: February 23, 2024
    Date of Patent: March 4, 2025
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Qing Yang, Max P. McDaniel, Tony R. Crain
  • Patent number: 12234348
    Abstract: Ethylene-based polymers having a density of 0.952 to 0.965 g/cm3, a high load melt index (HLMI) from 5 to 25 g/10 min, a weight-average molecular weight from 275,000 to 450,000 g/mol, a number-average molecular weight from 15,000 to 40,000 g/mol, a viscosity at HLMI from 1400 to 4000 Pa-sec, and a tangent delta at 0.1 sec?1 from 0.65 to 0.98 degrees. These polymers have the processability of chromium-based resins, but with improved stress crack resistance, and can be used in large-part blow molding applications.
    Type: Grant
    Filed: May 17, 2022
    Date of Patent: February 25, 2025
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Carlos A. Cruz, Yongwoo Inn, Justin Lumbley, Brandy Rutledge-Ryal, John R. Rathman, Jennifer L Hicks, Jay M. Chaffin
  • Publication number: 20250050323
    Abstract: Methods of improving metal dispersion of a catalyst, such as by contacting a spent catalyst and a stream including chlorine gas, and a stream including oxygen gas to form a regenerated catalyst. The regenerated catalyst may be used to catalyze a chemical reaction, and, after the chemical reaction, be regenerated one or more additional times.
    Type: Application
    Filed: August 11, 2023
    Publication date: February 13, 2025
    Applicant: Chevron Phillips Chemical Company LP
    Inventors: Gabriela D. ALVEZ, Joseph J. BERGMEISTER, Cori DEMMELMAIER-CHANG
  • Publication number: 20250043036
    Abstract: Chain transfer agent compositions that can include mixed mercaptans. Emulsion polymerization reaction mixtures that can include a chain transfer agent composition, one or more monomers, and one or more polymerization initiators. Methods of polymerization, which can include providing an emulsion polymerization reaction mixture, and isolating a polymer product from the emulsion polymerization reaction mixture.
    Type: Application
    Filed: July 24, 2024
    Publication date: February 6, 2025
    Applicant: Chevron Phillips Chemical Company LP
    Inventors: Jason L. Kreider, Dale M. Solaas, Kenneth M. Lassen, Rodney S. Childress
  • Patent number: 12209063
    Abstract: Processes for removing carbon disulfide from product streams containing a sulfide compound are performed by contacting the product stream with an alkanolamine and converting the carbon disulfide to a higher boiling point product, thereby reducing or eliminating carbon disulfide from the product stream. Subsequent removal of the higher boiling point product via distillation can lead to a purified sulfide stream with high purity.
    Type: Grant
    Filed: November 14, 2023
    Date of Patent: January 28, 2025
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Kenneth M. Lassen, Michael S. Matson, Daniel M. Hasenberg, Dave C. Schwierman
  • Patent number: 12203701
    Abstract: A hydrocarbon recovery system is integrated with a fluff transfer system. The hydrocarbon recovery system is configured for contacting a wet polymer fluff with a purge gas to provide a purged polymer fluff and an overhead stream, and separating a solids stream, a recovered hydrocarbon stream, and a recovered purge gas from the overhead stream. The polymer fluff transfer system is configured to receive the purged polymer fluff from the hydrocarbon recovery system and transport the purged polymer fluff in the fluff transfer system via circulation of a fluff transfer gas. The hydrocarbon recovery system and the fluff transfer system are integrated by utilizing at least a portion of the recovered purge gas from the hydrocarbon recovery system in the fluff transfer system as the fluff transfer gas and optionally utilizing fluff transfer gas from the fluff transfer system as the purge gas in the hydrocarbon recovery system.
    Type: Grant
    Filed: September 15, 2023
    Date of Patent: January 21, 2025
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Reza Khankal, Enrique Mancillas, Kamaljeet Kaur, Hetian Li
  • Patent number: 12202914
    Abstract: Processes for activating chromium polymerization catalysts, which can use lower maximum activation temperatures and shorter activation times than conventional activation methods, and provide polyethylenes with high melt indices, broader molecular weight distributions, and lower long chain branching content. The activation process can comprise heating a supported chromium catalyst in an inert atmosphere to a first temperature (T1) for a first hold time (tH1), followed by allowing the chromium catalyst to attain a second temperature (T2) in the inert atmosphere, then contacting the chromium catalyst with an oxidative atmosphere for a second hold time (tH2), in which T2 can be less than or equal to T1. Additional activation treatments and conditioning steps are disclosed which can be used to enhance the melt index potential of Phillips (Cr/silica) catalysts.
    Type: Grant
    Filed: September 20, 2021
    Date of Patent: January 21, 2025
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Max P. McDaniel, Kathy S. Clear, William C. Ellis, Deloris R. Gagan, Ted H. Cymbaluk
  • Patent number: 12195562
    Abstract: Polymerization processes and reactor systems for producing multimodal ethylene polymers are disclosed in which at least one loop reactor and at least one fluidized bed reactor are utilized. Configurations include a loop reactor in series with a fluidized bed reactor and two loop reactors in series with a fluidized bed reactor.
    Type: Grant
    Filed: November 1, 2023
    Date of Patent: January 14, 2025
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Joel A. Mutchler, Eric J. Netemeyer, Joseph A. Curren, Michael H. Treptau, Kenneth A. Dooley, Jeffrey S. Lowell, Jeffrey S. Fodor, Scott E. Kufeld
  • Patent number: 12173094
    Abstract: Disclosed is a process for operating a flashline heater and a flashline separation system. In the process and system, heat is supplied to the flashline heater by a first steam stage followed by a second steam stage. The steam pressure is controlled by a steam control system such that the pressure in the first steam stage is not equal to the pressure in the second steam stage. Also disclosed is a process for retrofitting a steam control system in a flashline separation system of an olefin polymerization system at least by changing the number of steam stages in the flashline separation system to include a first steam stage followed by a second steam stage, and changing the stream pressure control scheme such that the pressure in the first steam stage is independently controlled to be not equal to the pressure in the second steam stage.
    Type: Grant
    Filed: August 21, 2023
    Date of Patent: December 24, 2024
    Assignee: Chevron Phillips Chemical Company LP
    Inventor: Hetian Li
  • Patent number: 12173136
    Abstract: Polymer compositions containing an ethylene polymer, 50-1500 ppm by weight of a glycerol stearate, and 250-7500 ppm by weight of an antioxidant selected from a phenolic antioxidant, a phosphite antioxidant, a thioester antioxidant, or any combination thereof, are described. These polymer compositions have improved initial color, improved color after long-term aging, or improved color after multi-pass extrusion processing.
    Type: Grant
    Filed: October 7, 2022
    Date of Patent: December 24, 2024
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Justin W. Kamplain, Elizabeth M. Lanier
  • Patent number: 12168754
    Abstract: A pyrolysis oil fractionation system for treating a pyrolysis oil feed includes a fractionation column, at least one treatment catalyst bed, and a plurality of distillation trays. The system further includes a condenser to receive a light fraction and produce a condensed gasoline product and a vapor, a receiver coupled to the condenser, a knockout drum, and a distillate stripper coupled to the fractionation column. A method for treating a pyrolysis oil feed includes, in a fractionating column, dehydrohalogenating, decontaminating, and/or dehydrating a pyrolysis oil feed in at least one treatment catalyst bed, and distilling the treated pyrolysis oil feed into a light fraction, a middle fraction, a heavy fraction, and a bottom fraction. The method further includes condensing the light fraction and producing a condensed gasoline product and a vapor, separating a fuel gas product from the vapor, and stripping the middle fraction to produce a distillate product.
    Type: Grant
    Filed: March 16, 2022
    Date of Patent: December 17, 2024
    Assignee: Chevron Phillips Chemical Company LP
    Inventor: Steven R. Horlacher