Patents by Inventor Alex Pauwels
Alex Pauwels 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: 10689333Abstract: A process comprising reacting, in a reactor having a fixed bed containing a solid catalyst which contains a zeolite, hydrogen sulfide and an oxirane in the presence of the solid catalyst to yield a reaction product with contains a mercapto-alcohol. A reactor system includes the reactor, an oxirane feed stream, a hydrogen sulfide feed stream, a fixed bed containing the solid catalyst placed inside the reactor, and an effluent stream containing the reaction product. The hydrogen sulfide and the oxirane are present in a mole ratio in a range of about 5:1 to 50:1.Type: GrantFiled: February 22, 2019Date of Patent: June 23, 2020Assignee: Chevron Phillips Chemical Company LPInventors: Jason L. Kreider, Daniel M. Hasenberg, Alex Pauwels
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Patent number: 10544094Abstract: A process includes reacting, in a reactor having a fixed bed containing a solid catalyst which contains a heterogeneous ion exchange resin, hydrogen sulfide and ethylene oxide in the presence of the solid catalyst to yield a reaction product which contains beta-mercaptoethanol. A reactor system includes the reactor, an ethylene oxide stream, a hydrogen sulfide stream, a fixed bed containing the solid catalyst placed in the reactor, and an effluent stream containing the reaction product. During steady state operation of the reactor in the process and the reactor system, the hydrogen sulfide and the ethylene oxide are present in a mole ratio in a range of about 9:1 to about 20:1.Type: GrantFiled: June 26, 2017Date of Patent: January 28, 2020Assignee: Chevron Philips Chemical Company, LPInventors: Daniel M. Hasenberg, Alex Pauwels
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Patent number: 10336614Abstract: The present invention discloses a hydrogen sulfide reactor vessel with an external heating system that is conductively and removably attached to an exterior portion of the reactor vessel. Also disclosed are processes for producing hydrogen sulfide utilizing the reactor vessel.Type: GrantFiled: July 9, 2018Date of Patent: July 2, 2019Assignee: Chevron Phillips Chemical Company, LPInventors: Daniel M. Hasenberg, Alex Pauwels, Ives Mertens
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Publication number: 20180319663Abstract: The present invention discloses a hydrogen sulfide reactor vessel with an external heating system that is conductively and removably attached to an exterior portion of the reactor vessel. Also disclosed are processes for producing hydrogen sulfide utilizing the reactor vessel.Type: ApplicationFiled: July 9, 2018Publication date: November 8, 2018Inventors: Daniel M. Hasenberg, Alex Pauwels, Ives Mertens
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Patent number: 10040684Abstract: The present invention discloses a hydrogen sulfide reactor vessel with an external heating system that is conductively and removably attached to an exterior portion of the reactor vessel. Also disclosed are processes for producing hydrogen sulfide utilizing the reactor vessel.Type: GrantFiled: August 23, 2016Date of Patent: August 7, 2018Assignee: Chevron Phillips Chemical Company LPInventors: Daniel M Hasenberg, Alex Pauwels, Ives Mertens
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Publication number: 20170291873Abstract: A process includes reacting, in a reactor having a fixed bed containing a solid catalyst which contains a heterogeneous ion exchange resin, hydrogen sulfide and ethylene oxide in the presence of the solid catalyst to yield a reaction product which contains beta-mercaptoethanol. A reactor system includes the reactor, an ethylene oxide stream, a hydrogen sulfide stream, a fixed bed containing the solid catalyst placed in the reactor, and an effluent stream containing the reaction product. During steady state operation of the reactor in the process and the reactor system, the hydrogen sulfide and the ethylene oxide are present in a mole ratio in a range of about 9:1 to about 20:1.Type: ApplicationFiled: June 26, 2017Publication date: October 12, 2017Inventors: Daniel M. HASENBERG, Alex PAUWELS
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Patent number: 9718767Abstract: A process includes reacting, in a reactor having a fixed bed containing a solid catalyst which contains a heterogeneous ion exchange resin, hydrogen sulfide and ethylene oxide in the presence of the solid catalyst to yield a reaction product which contains beta-mercaptoethanol. A reactor system includes the reactor, an ethylene oxide stream, a hydrogen sulfide stream, a fixed bed containing the solid catalyst placed in the reactor, and an effluent stream containing the reaction product. During steady state operation of the reactor in the process and the reactor system, the hydrogen sulfide and the ethylene oxide are present in a mole ratio in a range of about 9:1 to about 20:1.Type: GrantFiled: December 4, 2015Date of Patent: August 1, 2017Assignee: Chevron Phillips Chemical Company LPInventors: Daniel M. Hasenberg, Alex Pauwels
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Publication number: 20170166447Abstract: The present invention discloses a hydrogen sulfide reactor vessel with an external heating system that is conductively and removably attached to an exterior portion of the reactor vessel. Also disclosed are processes for producing hydrogen sulfide utilizing the reactor vessel.Type: ApplicationFiled: August 23, 2016Publication date: June 15, 2017Inventors: Daniel M Hasenberg, Alex Pauwels, Ives Mertens
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Publication number: 20170158630Abstract: A process includes reacting, in a reactor having a fixed bed containing a solid catalyst which contains a heterogeneous ion exchange resin, hydrogen sulfide and ethylene oxide in the presence of the solid catalyst to yield a reaction product which contains beta-mercaptoethanol. A reactor system includes the reactor, an ethylene oxide stream, a hydrogen sulfide stream, a fixed bed containing the solid catalyst placed in the reactor, and an effluent stream containing the reaction product. During steady state operation of the reactor in the process and the reactor system, the hydrogen sulfide and the ethylene oxide are present in a mole ratio in a range of about 9:1 to about 20:1.Type: ApplicationFiled: December 4, 2015Publication date: June 8, 2017Inventors: Daniel M. HASENBERG, Alex PAUWELS
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Patent number: 6894194Abstract: In a process to make dithiodiglycol by oxidation of ?-mercaptoethanol with sulfur, an improved product is recovered when a 1-10 mol % excess of ?-mercaptoethanol is used and hydrogen sulfide is removed by vacuum or nitrogen sparge. A typical product contains 88.1 mol % (92.0 wt %) dithiodiglycol, 2.3 mol % (2.9 wt %) trithiodiglycol and 9.6 mol % (5.1 wt %) unreacted ?-mercaptoethanol. Reaction of this product with 35 to 50 wt % solution hydrogen peroxide reduces residual ?-mercaptoethanol to less than 0.02 wt % mercaptan. Residual water of about 3.6 wt % after hydrogen peroxide treatment is reduced to less than 1 wt % by vacuum stripping and/or nitrogen sparge or with a wiped film evaporator.Type: GrantFiled: December 8, 2003Date of Patent: May 17, 2005Assignee: Chevron Phillips Chemical CompanyInventors: Kenneth E. Inkrott, Michael S. Matson, Alex Pauwels
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Publication number: 20040116748Abstract: In a process to make dithiodiglycol by oxidation of &bgr;-mercaptoethanol with sulfur, an improved product is recovered when a 1-10 mol % excess of &bgr;-mercaptoethanol is used and hydrogen sulfide is removed by vacuum or nitrogen sparge. A typical product contains 88.1 mol % (92.0 wt %) dithiodiglycol, 2.3 mol % (2.9 wt %) trithiodiglycol and 9.6 mol % (5.1 wt %) unreacted &bgr;-mercaptoethanol. Reaction of this product with 35 to 50 wt % solution hydrogen peroxide reduces residual &bgr;-mercaptoethanol to less than 0.02 wt % mercaptan. Residual water of about 3.6 wt % after hydrogen peroxide treatment is reduced to less than 1 wt % by vacuum stripping and/or nitrogen sparge or with a wiped film evaporator.Type: ApplicationFiled: December 8, 2003Publication date: June 17, 2004Applicant: CHEVRON PHILLIPS CHEMICAL COMPANYInventors: Kenneth E. Inkrott, Michael S. Matson, Alex Pauwels
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Patent number: 5659086Abstract: A process which can be used for producing an organic disulfide is provided. The process comprises the steps of: (1) contacting a base and a mercaptan under an effective condition for forming a brine phase comprising the base and a basic salt of a mercaptan; (2) contacting the brine phase with a mercaptan and hydrogen peroxide under a condition sufficient to effect the formation of an aqueous phase and an organic phase; (3) separating the aqueous phase from the organic phase; (4) recovering the organic phase; and optionally, (5) removing a portion of water from the aqueous phase and thereafter repeating the steps of (2) to (5).Type: GrantFiled: June 6, 1995Date of Patent: August 19, 1997Assignee: Phillips Petroleum CompanyInventors: Alex Pauwels, Dean E. Stinn