Patents by Inventor Gary Paul Schleicher
Gary Paul Schleicher 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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Patent number: 9284500Abstract: Methods are provided for producing lubricant base oils from petrolatum. After solvent dewaxing of a brightstock raffinate to form a brightstock base oil, petrolatum is generated as a side product. The petrolatum can be hydroprocessed to form base oils in high yield. The base oils formed from hydroprocessing of petrolatum have an unexpected pour point relationship. For a typical lubricant oil feedstock, the pour point of the base oils generated from the feedstock increases with the viscosity of the base oil. By contrast, lubricant base oils formed from hydroprocessing of petrolatum have a relatively flat pour point relationship, and some of the higher viscosity base oils unexpectedly have lower pour points than lower viscosity base oils generated from the same petrolatum feed. The base oils from petrolatum are also unusual in yielding both high viscosity and high viscosity index and can be generated while maintaining a high yield.Type: GrantFiled: March 4, 2014Date of Patent: March 15, 2016Assignee: ExxonMobil Research and Engineering CompanyInventors: Jeenok T. Kim, Gary Paul Schleicher, Halou Oumar-Mahamat, Chad Hinden Mondor
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Patent number: 9029301Abstract: Systems and methods are provided for hydroprocessing a petroleum fraction, such as a bottoms fraction from a fuels hydrocracking process, to generate a lubricant base oil. A fuels hydrocracking process typically has less stringent requirements for the sulfur and nitrogen content of a feed as compared to a lubricant base oil. Additionally, depending on the nature of the feed for the fuels hydrocracking process, the bottoms fraction may contain a relatively high level of aromatics compounds. The aromatic content of such a petroleum fraction can be reduced using a aromatic saturation stage with multiple catalyst beds, or alternatively using a reactor (or reactors) with multiple aromatic saturation stages. The catalysts in the various beds or stages can be selected to provide different types of aromatic saturation activity. An initial bed or stage can provide activity for saturation of 1-ring aromatics in the petroleum fraction.Type: GrantFiled: November 28, 2012Date of Patent: May 12, 2015Assignee: ExxonMobil Research and Engineering CompanyInventors: Gary Paul Schleicher, Jason Thomas Calla
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Patent number: 8906224Abstract: Sweet and sour lubricant feeds are block and continuous processed to produce lubricant basestocks. Total liquid product yields at a desired pour point are maintained for catalytic dewaxing of both sweet and sour conditions. The desired pour point is achieved for both the sweet and sour feeds by varying the catalytic dewaxing reaction temperature as a function of sulfur content entering the reactor.Type: GrantFiled: December 22, 2010Date of Patent: December 9, 2014Assignee: Exxonmobil Research and Engineering CompanyInventors: Krista Marie Prentice, Michel Daage, Gary Paul Schleicher, Christine Nicole Elia, Stephen J. McCarthy, Wenyih F. Lai, Shifang L. Luo, Robert Andrew Migliorini
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Publication number: 20140262944Abstract: Methods are provided for producing lubricant base oils from petrolatum. After solvent dewaxing of a brightstock raffinate to form a brightstock base oil, petrolatum is generated as a side product. The petrolatum can be hydroprocessed to form base oils in high yield. The base oils formed from hydroprocessing of petrolatum have an unexpected pour point relationship. For a typical lubricant oil feedstock, the pour point of the base oils generated from the feedstock increases with the viscosity of the base oil. By contrast, lubricant base oils formed from hydroprocessing of petrolatum have a relatively flat pour point relationship, and some of the higher viscosity base oils unexpectedly have lower pour points than lower viscosity base oils generated from the same petrolatum feed. The base oils from petrolatum are also unusual in yielding both high viscosity and high viscosity index and can be generated while maintaining a high yield.Type: ApplicationFiled: March 4, 2014Publication date: September 18, 2014Applicant: ExxonMobil Research and Engineering CompanyInventors: Jeenok T. Kim, Gary Paul Schleicher, Halou Oumar-Mahamat, Chad Hinden Mondor
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Patent number: 8394255Abstract: An integrated process for producing naphtha fuel, diesel fuel and/or lubricant base oils from feedstocks under sour conditions is provided. The ability to process feedstocks under higher sulfur and/or nitrogen conditions allows for reduced cost processing and increases the flexibility in selecting a suitable feedstock. The sour feed can be delivered to a catalytic dewaxing step without any separation of sulfur and nitrogen contaminants, or a high pressure separation can be used to partially eliminate contaminants. The integrated process includes an initial hydrotreatment, hydrocracking, catalytic dewaxing of the hydrocracking effluent, and an option final hydrotreatment.Type: GrantFiled: December 23, 2009Date of Patent: March 12, 2013Assignee: ExxonMobil Research and Engineering CompanyInventors: Stephen J. McCarthy, Gary Paul Schleicher, Krista Marie Prentice, Michel Daage, Christopher Gordon Oliveri, Thomas Francis Degnan, José Guadalupe Santiesteban, Ajit Bhaskar Dandekar, William Joseph Novak, Wenyih F. Lai
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Patent number: 8366908Abstract: An integrated process for producing lubricant base oils from feedstocks under sour conditions is provided. The ability to process feedstocks under higher sulfur conditions allows for reduced cost processing and increases the flexibility in selecting a suitable feedstock. The sour feed can be delivered to a catalytic dewaxing step without any separation of sulfur and nitrogen contaminants, or a high pressure separation can be used to partially eliminate contaminants.Type: GrantFiled: December 23, 2009Date of Patent: February 5, 2013Assignee: ExxonMobil Research and Engineering CompanyInventors: Krista Marie Prentice, Gary Paul Schleicher, Lei Zhang, Timothy Lee Hilbert, Michel A. Daage, Sylvain Hantzer, Wenyih F. Lai, David Mentzer, William Francis Heaney, Christine Nicole Elia, Shifang Luo, Stephen J. McCarthy, Mohan Kalyanaraman
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Publication number: 20110174684Abstract: Sweet and sour lubricant feeds are block and continuous processed to produce lubricant basestocks. Total liquid product yields at a desired pour point are maintained for catalytic dewaxing of both sweet and sour conditions. The desired pour point is achieved for both the sweet and sour feeds by varying the catalytic dewaxing reaction temperature as a function of sulfur content entering the reactor.Type: ApplicationFiled: December 22, 2010Publication date: July 21, 2011Applicant: ExxonMobil Research and Engineering CompanyInventors: Krista Marie Prentice, Michel Daage, Gary Paul Schleicher, Christine Nicole Elia, Stephen J. McCarthy, Wenyih F. Lai, Shifang L. Luo, Robert Andrew Migliorini
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Publication number: 20100187156Abstract: An integrated process for producing lubricant base oils from feedstocks under sour conditions is provided. The ability to process feedstocks under higher sulfur conditions allows for reduced cost processing and increases the flexibility in selecting a suitable feedstock. The sour feed can be delivered to a catalytic dewaxing step without any separation of sulfur and nitrogen contaminants, or a high pressure separation can be used to partially eliminate contaminants.Type: ApplicationFiled: December 23, 2009Publication date: July 29, 2010Inventors: Krista Marie Prentice, Gary Paul Schleicher, Lei Zhang, Timothy Lee Hilbert, Michel A. Daage, Sylvain Hantzer, Wenyih F. Lai, David Mentzer, William Francis Heaney, Christine Nicole Elia, Shifang Luo, Stephen J. McCarthy, Mohan Kalyanaraman
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Publication number: 20100187155Abstract: An integrated process for producing naphtha fuel, diesel fuel and/or lubricant base oils from feedstocks under sour conditions is provided. The ability to process feedstocks under higher sulfur and/or nitrogen conditions allows for reduced cost processing and increases the flexibility in selecting a suitable feedstock. The sour feed can be delivered to a catalytic dewaxing step without any separation of sulfur and nitrogen contaminants, or a high pressure separation can be used to partially eliminate contaminants. The integrated process includes an initial hydrotreatment, hydrocracking, catalytic dewaxing of the hydrocracking effluent, and an option final hydrotreatment.Type: ApplicationFiled: December 23, 2009Publication date: July 29, 2010Inventors: Stephen J. McCarthy, Gary Paul Schleicher, Krista Marie Prentice, Michel Daage, Christopher Gordon Oliveri, Thomas Francis Degnan, Jose Guadalupe Santiesteban, Ajit Bhaskar Dandekar, William Joseph Novak, Wenyih F. Lai