Patents by Inventor Brenda A. Raich

Brenda A. Raich 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).

  • Publication number: 20240093102
    Abstract: Systems and methods are provided for integration of polymeric waste co-processing in cokers to produce circular chemical products from coker gas oil, including a method of producing circular chemical products comprising: providing a coker gas oil that is at least partially derived from polymeric waste, wherein the coker gas oil has a paraffin content of about 5 wt % to about 50 wt %, a sulfur content of about 0.1 wt % to about 7 wt %, and a halide content of about 0.1 wppm to about 5 wppm; and converting the coker gas oil into at least a polymer.
    Type: Application
    Filed: August 18, 2023
    Publication date: March 21, 2024
    Inventors: Bryan A. Patel, Brenda A. Raich, Steven M. Slack, Derrick B. Callander, Eric M. Yucha, Fritz A. Bernatz, Rainer Kolb, Alex S. Kolb
  • Publication number: 20240084199
    Abstract: Systems and methods are provided for integration of polymeric waste co-processing in cokers to produce circular chemical products from coker gas, including a method of producing circular chemical products comprising: providing a coker gas that is at least partially derived from polymeric waste, wherein the coker gas has an olefin content of about 10 wt % to about 30 wt %, a sulfur content of about 0.5 wt % to about 5 wt %, and a total halide content of about 1 wppm to about 150 wppm; and oxygen-containing compounds in an amount of about 0.5 wt % to about 15 wt %; and converting the coker gas into at least a polymer.
    Type: Application
    Filed: August 18, 2023
    Publication date: March 14, 2024
    Inventors: Bryan A. Patel, Brenda A. Raich, Steven M. Slack, Derrick B. Callander, Eric M. Yucha, Fritz A. Bernatz, Rainer Kolb, Alex S. Kolb
  • Publication number: 20240084095
    Abstract: Systems and methods are provided for integration of polymeric waste co-processing in cokers to produce circular chemical products from coker naphtha, including a method of producing circular chemical products comprising: providing a coker naphtha that is at least partially derived from polymeric waste, wherein the coker naphtha has a total halide content of about 1 wppm to about 0.5 wt %, a 2-3 ring aromatic content of about 0 wt % to about 5 wt %, and a sulfur content of about 750 ppm to about 2 wt %; and converting the coker naphtha into at least a polymer.
    Type: Application
    Filed: August 18, 2023
    Publication date: March 14, 2024
    Inventors: Bryan A. Patel, Brenda A. Raich, Steven M. Slack, Derrick B. Callander, Eric M. Yucha, Fritz A. Bernatz, Rainer Kolb, Alex S. Kolb
  • Patent number: 11767477
    Abstract: Systems and methods are provided for partial upgrading of heavy hydrocarbon feeds to meet transport specifications, such as pipeline transport specifications. The systems and methods can allow for one or more types of improvement in heavy hydrocarbon processing prior to transport. In some aspects, the systems and methods can produce a partially upgraded heavy hydrocarbon product that satisfies one or more transport specifications while incorporating an increased amount of vacuum gas oil and a reduced amount of pitch into the partially upgraded heavy hydrocarbon product. In other aspects, the systems and methods can allow for increased incorporation of hydrocarbons into the fraction upgraded for transport, thereby reducing or minimizing the amount of hydrocarbons requiring an alternative method of disposal or transport.
    Type: Grant
    Filed: August 14, 2020
    Date of Patent: September 26, 2023
    Assignee: EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANY
    Inventors: Eric B. Shen, Anjaneya S Kovvali, Aruna Ramkrishnan, Arun K. Sharma, Samuel J. Cady, Stephen H. Brown, Rustom M. Billimoria, Brenda A. Raich, Bryan A. Patel, Phillip K. Schoch, John Della Mora
  • Patent number: 11760942
    Abstract: An upgraded crude composition is provided, along with systems and methods for making such a composition. The upgraded crude composition can include an unexpectedly high percentage of vacuum gas oil boiling range components while having a reduce or minimized amount of components boiling above 593° C. (1100° F.). In some aspects, based in part on the hydroprocessing used to form the upgraded crude composition, the composition can include unexpectedly high contents of nitrogen. Still other unexpected features of the composition can include, but are not limited to, an unexpectedly high nitrogen content in the naphtha fraction; and an unexpected vacuum gas oil fraction including an unexpectedly high content of polynuclear aromatics, an unexpectedly high content of waxy, paraffinic compounds, and/or an unexpectedly high content of n-pentane asphaltenes.
    Type: Grant
    Filed: August 14, 2020
    Date of Patent: September 19, 2023
    Assignee: EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANY
    Inventors: Stephen H. Brown, Brenda A. Raich, Samuel J. Cady, Anjaneya S. Kovvali, Eric B. Shen, Scott R. Horton, Ashish B. Mhadeshwar, Aruna Ramkrishnan
  • Patent number: 11746020
    Abstract: Sulfur-crosslinked olefins, particularly sulfur-crosslinked heavy hydrocarbon products having one or more sulfur-crosslinked olefin moieties, may undergo pyrolysis to form sulfur-doped porous carbon having high BET surface area values. Pyrolysis to form the sulfur-doped porous carbon may be particularly efficacious in the presence of a hydroxide base. BET surface areas up to 2000 m2/g or even higher may be obtained. Such sulfur-doped porous carbon may be prepared by combining a heavy hydrocarbon product with sulfur, heating to a first temperature state to form a liquefied reaction mixture containing a sulfur-crosslinked heavy hydrocarbon, homogeneously mixing a hydroxide base with the liquefied reaction mixture, and pyrolyzing the sulfur-crosslinked heavy hydrocarbon to form sulfur-doped porous carbon.
    Type: Grant
    Filed: January 24, 2020
    Date of Patent: September 5, 2023
    Assignee: EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANY
    Inventors: Yi Du, Bradley D. Wooler, Stuart E. Smith, Brenda A. Raich, Clarence Chase, Lesheng Wang
  • Publication number: 20230131108
    Abstract: Systems and methods are provided for separation of particles and/or asphaltenes from heavy hydrocarbon fractions. The heavy hydrocarbon fraction can correspond to a feed including particles or a processing effluent that includes particles. If the heavy hydrocarbon fraction is mixed with lower boiling fractions, a separation can be performed to reduce or minimize the amount of hydrocarbons that are present in the heavy hydrocarbon fraction. The heavy hydrocarbon fraction can then be mixed with a sufficient amount of a separation solvent to cause a phase separation. One phase can correspond to the separation solvent plus a portion of the hydrocarbons. The other phase can correspond to hydrocarbons rejected by the separation solvent plus the particles from the heavy hydrocarbon fraction. The phases can then be separated from each other using a solids-liquid centrifugal separator.
    Type: Application
    Filed: March 31, 2020
    Publication date: April 27, 2023
    Applicant: EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANY
    Inventors: Bryan A. PATEL, Brenda A. RAICH, Keith K. ALDOUS
  • Publication number: 20220333024
    Abstract: Systems and methods are provided for partial upgrading of heavy hydrocarbon feeds to meet transport specifications, such as pipeline transport specifications. The systems and methods can allow for one or more types of improvement in heavy hydrocarbon processing prior to transport. In some aspects, the systems and methods can produce a partially upgraded heavy hydrocarbon product that satisfies one or more transport specifications while incorporating an increased amount of vacuum gas oil and a reduced amount of pitch into the partially upgraded heavy hydrocarbon product. In other aspects, the systems and methods can allow for increased incorporation of hydrocarbons into the fraction upgraded for transport, thereby reducing or minimizing the amount of hydrocarbons requiring an alternative method of disposal or transport.
    Type: Application
    Filed: August 14, 2020
    Publication date: October 20, 2022
    Inventors: Eric B. SHEN, Anjaneya S. KOVVALI, Aruna RAMKRISHNAN, Arun K. SHARMA, Samuel J. CADY, Stephen H. BROWN, Rustom M. BILLIMORIA, Brenda A. RAICH, Bryan A. PATEL, Phillip K. SCHOCH, John DELLA MORA
  • Publication number: 20220333026
    Abstract: An upgraded crude composition is provided, along with systems and methods for making such a composition. The upgraded crude composition can include an unexpectedly high percentage of vacuum gas oil boiling range components while having a reduce or minimized amount of components boiling above 593° C. (1100° F.). In some aspects, based in part on the hydroprocessing used to form the upgraded crude composition, the composition can include unexpectedly high contents of nitrogen. Still other unexpected features of the composition can include, but are not limited to, an unexpectedly high nitrogen content in the naphtha fraction; and an unexpected vacuum gas oil fraction including an unexpectedly high content of polynuclear aromatics, an unexpectedly high content of waxy, paraffinic compounds, and/or an unexpectedly high content of n-pentane asphaltenes.
    Type: Application
    Filed: August 14, 2020
    Publication date: October 20, 2022
    Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Stephen H. BROWN, Brenda A. RAICH, Samuel J. CADY, Anjaneya S. KOVVALI, Eric B. SHEN, Scott R. HORTON, Ashish B. MHADESHWAR, Aruna RAMKRISHNAN
  • Publication number: 20220325189
    Abstract: Systems and methods are provided for partial upgrading of heavy hydrocarbon feeds to meet transport specifications, such as pipeline transport specifications. The systems and methods can allow for one or more types of improvement in heavy hydrocarbon processing prior to transport. In some aspects, the systems and methods can produce a partially upgraded heavy hydrocarbon product that satisfies one or more transport specifications while incorporating an increased amount of vacuum gas oil and a reduced amount of pitch into the partially upgraded heavy hydrocarbon product. In other aspects, the systems and methods can allow for increased incorporation of hydrocarbons into the fraction upgraded for transport, thereby reducing or minimizing the amount of hydrocarbons requiring an alternative method of disposal or transport.
    Type: Application
    Filed: August 14, 2020
    Publication date: October 13, 2022
    Applicant: EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANY
    Inventors: Eric B. SHEN, Anjaneya S. KOVVALI, Aruna RAMKRISHNAN, Arun K. SHARMA, Samuel J. CADY, Stephen H. BROWN, Rustom M. BILLIMORIA, Brenda A. RAICH, Bryan A. PATEL, Phillip K. SCHOCH, John DELLA MORA
  • Publication number: 20220275293
    Abstract: Systems and methods are provided for partial upgrading of heavy hydrocarbon feeds to meet transport specifications, such as pipeline transport specifications. The systems and methods can allow for one or more types of improvement in heavy hydrocarbon processing prior to transport. In some aspects, the systems and methods can produce a partially upgraded heavy hydrocarbon product that satisfies one or more transport specifications while incorporating an increased amount of vacuum gas oil and a reduced amount of pitch into the partially upgraded heavy hydrocarbon product. In other aspects, the systems and methods can allow for increased incorporation of hydrocarbons into the fraction upgraded for transport, thereby reducing or minimizing the amount of hydrocarbons requiring an alternative method of disposal or transport.
    Type: Application
    Filed: August 14, 2020
    Publication date: September 1, 2022
    Inventors: Eric B. SHEN, Anjaneya S. KOVVALI, Aruna RAMKRISHNAN, Samuel J. CADY, Stephen H. BROWN, Rustom M. BILLIMORIA, Brenda A. RAICH, Bryan A. PATEL, Phillip K. SCHOCH, John DELLA MORA, Arun K. SHARMA
  • Patent number: 11292977
    Abstract: Methods are provided for processing deasphalted gas oils derived from thermally cracked resid fractions to form Group I, Group II, and/or Group III lubricant base oils. The yield of lubricant base oils (optionally also referred to as base stocks) can be increased by thermally cracking a resid fraction at an intermediate level of single pass severity relative to conventional methods. By performing thermal cracking to a partial level of conversion, compounds within a resid fraction that are beneficial for increasing both the viscosity and the viscosity index of a lubricant base oil can be retained, thus allowing for an improved yield of higher viscosity lubricant base oils from a thermally cracked resid fraction.
    Type: Grant
    Filed: October 9, 2020
    Date of Patent: April 5, 2022
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Stephen H. Brown, Brenda A. Raich, Beatrice M. Gooding, Stephen M. Davis, Federico Barrai, Warren B. Ames, Keith K. Aldous
  • Patent number: 11118120
    Abstract: A method of upgrading refining streams with high polynucleararomatic hydrocarbon (PNA) concentrations can include: hydrocracking a PNA feed in the presence of a catalyst and hydrogen at 380° C. to 430° C., 2500 psig or greater, and 0.1 hr?1 to 5 hr?1 liquid hourly space velocity (LSHV), wherein the weight ratio of PNA feed to hydrogen is 30:1 to 10:1, wherein the PNA feed comprises 25 wt % or less of hydrocarbons having a boiling point of 700° F. (371° C.) or less and having an aromatic content of 50 wt % or greater to form a product comprising 50 wt % or greater of the hydrocarbons having a boiling point of 700° F. (371° C.) or less and having an aromatic content of 20 wt % or less.
    Type: Grant
    Filed: December 9, 2019
    Date of Patent: September 14, 2021
    Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Stephen H. Brown, Samia Ilias, Randolph J. Smiley, Richard Demmin, Shifang Luo, Brenda A. Raich, Aldrin G. Cuevas, Keith Wilson, Jesse R. McManus, Lei Zhang
  • Publication number: 20210024846
    Abstract: Methods are provided for processing deasphalted gas oils derived from thermally cracked resid fractions to form Group I, Group II, and/or Group III lubricant base oils. The yield of lubricant base oils (optionally also referred to as base stocks) can be increased by thermally cracking a resid fraction at an intermediate level of single pass severity relative to conventional methods. By performing thermal cracking to a partial level of conversion, compounds within a resid fraction that are beneficial for increasing both the viscosity and the viscosity index of a lubricant base oil can be retained, thus allowing for an improved yield of higher viscosity lubricant base oils from a thermally cracked resid fraction.
    Type: Application
    Filed: October 9, 2020
    Publication date: January 28, 2021
    Inventors: Stephen H. Brown, Brenda A. Raich, Beatrice M. Gooding, Stephen M. Davis, Federico Barrai, Warren B. Ames, Keith K. Aldous
  • Patent number: 10870806
    Abstract: Systems and methods are provided for upgrading a mixture of catalytic slurry oil and coker bottoms by hydroprocessing. Optionally, the upgrading can further include deasphalting the mixture of catalytic slurry oil and coker bottoms to form a deasphalted oil and a deasphalter residue or rock fraction. The mixture of catalytic slurry oil and coker bottoms and/or the deasphalted oil can then be hydroprocessed to form an upgraded effluent that includes fuels boiling range products. Optionally, in some aspects where the feed mixture is deasphalted prior to hydroprocessing, the feed mixture can further include a portion of a (sour) vacuum resid.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: December 22, 2020
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Stephen H. Brown, Brian A. Cunningham, Randolph J. Smiley, Samia Ilias, Brenda A. Raich, Tien V. Le
  • Publication number: 20200299141
    Abstract: Sulfur-crosslinked olefins, particularly sulfur-crosslinked heavy hydrocarbon products having one or more sulfur-crosslinked olefin moieties, may undergo pyrolysis to form sulfur-doped porous carbon having high BET surface area values. Pyrolysis to form the sulfur-doped porous carbon may be particularly efficacious in the presence of a hydroxide base. BET surface areas up to 2000 m2/g or even higher may be obtained. Such sulfur-doped porous carbon may be prepared by combining a heavy hydrocarbon product with sulfur, heating to a first temperature state to form a liquefied reaction mixture containing a sulfur-crosslinked heavy hydrocarbon, homogeneously mixing a hydroxide base with the liquefied reaction mixture, and pyrolyzing the sulfur-crosslinked heavy hydrocarbon to form sulfur-doped porous carbon.
    Type: Application
    Filed: January 24, 2020
    Publication date: September 24, 2020
    Inventors: Yi Du, Bradley D. Wooler, Stuart E. Smith, Brenda A. Raich, Clarence Chase, Lesheng Wang
  • Patent number: 10752846
    Abstract: Systems and methods are provided for improving the processing of heavy or challenged feeds in a refinery based on integrated use of deasphalting, coking, and hydroprocessing. An optional fluid catalytic cracking unit can be included in the integrated system to allow for further improvements. The improved processing can be facilitated based on a process configuration where the vacuum resid fractions and/or other difficult fractions are deasphalted to generate a deasphalted oil and a deasphalter residue or rock fraction. The deasphalted oil can be passed into a hydroprocessing unit for further processing. The rock fraction can be used as the feed to a coking unit. Although deasphalter residue or rock is typically a feed with a high content of micro carbon residue, a high lift deasphalting process can allow a portion of the micro carbon residue in the initial feed to remain with the deasphalted oil.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: August 25, 2020
    Assignee: ExxonMobil Research & Engineering Company
    Inventors: Stephen H. Brown, Brian A. Cunningham, Randolph J. Smiley, Samia Ilias, Brenda A. Raich, Tien V. Le
  • Publication number: 20200248079
    Abstract: Systems and methods are provided for conversion of light paraffinic gases to form liquid products in a two-stage reaction system. In a first stage, the light paraffinic gas is exposed to heat transfer particles in a side riser, where the heat transfer particles correspond to particles used in a separate process. Examples of a separate process include fluidized coking and fluid catalytic cracking. The conditions in the side riser can be selected to allow for conversion of at least a portion of the paraffins to olefins. After conversion, the converted olefin stream is passed to the second reaction stage while the heat transfer particles are returned to the separate process. The converted olefin stream is then exposed to a conversion catalyst under conditions for forming aromatics from the converted olefin stream in a second reaction stage. By performing the initial alkane conversion to olefins in the first reaction stage, the amount of coke formed during the aromatics formation process is reduced or minimized.
    Type: Application
    Filed: January 31, 2019
    Publication date: August 6, 2020
    Inventors: Arsam Behkish, Brian A. Cunningham, Anjaneya S. Kovvali, Brenda A. Raich, Christopher G. Smalley
  • Publication number: 20200181509
    Abstract: A method of upgrading refining streams with high polynucleararomatic hydrocarbon (PNA) concentrations can include: hydrocracking a PNA feed in the presence of a catalyst and hydrogen at 380° C. to 430° C., 2500 psig or greater, and 0.1 hr?1 to 5 hr?1 liquid hourly space velocity (LSHV), wherein the weight ratio of PNA feed to hydrogen is 30:1 to 10:1, wherein the PNA feed comprises 25 wt % or less of hydrocarbons having a boiling point of 700° F. (371° C.) or less and having an aromatic content of 50 wt % or greater to form a product comprising 50 wt % or greater of the hydrocarbons having a boiling point of 700° F. (371° C.) or less and having an aromatic content of 20 wt % or less.
    Type: Application
    Filed: December 9, 2019
    Publication date: June 11, 2020
    Inventors: Stephen H. Brown, Samia Ilias, Randolph J. Smiley, Richard Demmin, Shifang Luo, Brenda A. Raich, Aldrin G. Cuevas, Keith Wilson, Jesse R. McManus, Lei Zhang
  • Publication number: 20190352572
    Abstract: Systems and methods are provided for adding a heated stream of light hydrocarbons to a fluidized coking environment to improve liquid product yield and/or reduce coke production. The light hydrocarbons can correspond to C1-C10 hydrocarbons and/or hydrogen. The light hydrocarbons can be heated so that the light hydrocarbons are exposed to an activation temperature of 535° C. to 950° C. and/or an activation temperature higher than the temperature in the coking zone by 50° C. or more for an activation time prior to entering the fluidized coking reactor and/or the coking zone in the fluidized coking environment.
    Type: Application
    Filed: May 16, 2018
    Publication date: November 21, 2019
    Inventors: Tien V. Le, Walter E. Dubois, Brenda A. Raich, Bing Du, Sumathy Raman, Gawain J. Lau