Patents by Inventor Steven C. Gimre
Steven C. Gimre 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: 10377684Abstract: Processes and apparatuses for isomerizing hydrocarbons are provided. In an embodiment, a process for isomerizing hydrocarbons includes providing a first hydrocarbon feed that includes hydrocarbons having from 5 to 7 carbon atoms. The first hydrocarbon feed is fractionated to produce a first separated stream that includes hydrocarbons having from 5 to 6 carbon atoms and a second separated stream that includes hydrocarbons having 7 carbon atoms. The first separated stream is contacted with a benzene saturation catalyst at benzene saturation conditions to produce an intermediate stream and subsequently isomerized in the presence of a first isomerization catalyst and hydrogen under first isomerization conditions to produce a first isomerized stream. The second separated stream is isomerized in the presence of a second isomerization catalyst and hydrogen under second isomerization conditions that are different from the first isomerization conditions to produce a second isomerized stream.Type: GrantFiled: October 13, 2017Date of Patent: August 13, 2019Assignee: UOP LLCInventors: Soumendra Mohan Banerjee, Steven C. Gimre
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Publication number: 20180037522Abstract: Processes and apparatuses for isomerizing hydrocarbons are provided. In an embodiment, a process for isomerizing hydrocarbons includes providing a first hydrocarbon feed that includes hydrocarbons having from 5 to 7 carbon atoms. The first hydrocarbon feed is fractionated to produce a first separated stream that includes hydrocarbons having from 5 to 6 carbon atoms and a second separated stream that includes hydrocarbons having 7 carbon atoms. The first separated stream is contacted with a benzene saturation catalyst at benzene saturation conditions to produce an intermediate stream and subsequently isomerized in the presence of a first isomerization catalyst and hydrogen under first isomerization conditions to produce a first isomerized stream. The second separated stream is isomerized in the presence of a second isomerization catalyst and hydrogen under second isomerization conditions that are different from the first isomerization conditions to produce a second isomerized stream.Type: ApplicationFiled: October 13, 2017Publication date: February 8, 2018Inventors: Soumendra Mohan Banerjee, Steven C. Gimre
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Publication number: 20160311732Abstract: Processes and apparatuses for isomerizing hydrocarbons are provided. In an embodiment, a process for isomerizing hydrocarbons includes providing a first hydrocarbon feed that includes hydrocarbons having from 5 to 7 carbon atoms. The first hydrocarbon feed is fractionated to produce a first separated stream that includes hydrocarbons having from 5 to 6 carbon atoms and a second separated stream that includes hydrocarbons having 7 carbon atoms. The first separated stream is contacted with a benzene saturation catalyst at benzene saturation conditions to produce an intermediate stream and subsequently isomerized in the presence of a first isomerization catalyst and hydrogen under first isomerization conditions to produce a first isomerized stream. The second separated stream is isomerized in the presence of a second isomerization catalyst and hydrogen under second isomerization conditions that are different from the first isomerization conditions to produce a second isomerized stream.Type: ApplicationFiled: April 27, 2015Publication date: October 27, 2016Inventors: Soumendra Mohan Banerjee, Steven C. Gimre
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Patent number: 6284938Abstract: A process for the production of C8 and higher carbon number alkene oligomers by the oligomerization of light olefins to heavier olefins is improved by the addition of heavy paraffins to the oligomerization zone. The recycle of the heavy paraffins extends the catalyst activity and improves the catalyst life. The non-reactive paraffin stream may be recycled through the process with minimal losses and make-up.Type: GrantFiled: December 20, 1999Date of Patent: September 4, 2001Assignee: UOP LLCInventors: Laurence O. Stine, Brian S. Muldoon, Steven C. Gimre, Robert R. Frame
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Patent number: 6072093Abstract: A process for the production of C.sub.8 and higher olefins by the oligomerization of light olefins to heavier olefins is improved by the addition of cycloparaffins to the oligomerization zone. The recycle of the cycloparaffins extends the catalyst activity and improves the catalyst life. Cyclohexane provides an excellent solvent for removing deposits from the catalyst with chemical inertness to the process and a boiling range that allows its essentially complete recovery when producing nonenes and higher olefins from propylene feeds.Type: GrantFiled: November 6, 1998Date of Patent: June 6, 2000Assignee: UOP LLCInventors: Patrick S. O'Neill, Laurence O. Stine, Brian S. Muldoon, Steven C. Gimre, Robert R. Frame
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Patent number: 5990367Abstract: A process for the production of C.sub.8 and higher olefins by the oligomerization of light olefins to heavier olefins is improved by the addition of heavy paraffins to the oligomerization zone. The recycle of the heavy paraffins extends the catalyst activity and improves the catalyst life.Type: GrantFiled: November 6, 1998Date of Patent: November 23, 1999Assignee: UOP LLCInventors: Laurence O. Stine, Brian S. Muldoon, Steven C. Gimre, Robert R. Frame
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Patent number: 5895830Abstract: A process for the production of C.sub.8 alkene isomers by the oligomerization of light olefins to heavier olefins is improved by the addition of heavy paraffins to the oligomerization zone. The recycle of the heavy paraffins improves the selectivity of the oligomerization for C.sub.8 olefin isomers that have a high octane number when saturated and reduces catalyst fouling. The saturated octane number of the resulting C.sub.8 isomers is particularly improved when the oligomerization zone is operated at reduced temperature conditions.Type: GrantFiled: December 15, 1997Date of Patent: April 20, 1999Assignee: UOP LLCInventors: Laurence O. Stine, Brian S. Muldoon, Steven C. Gimre, Robert R. Frame
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Patent number: 5856604Abstract: A process for the production motor fuel components from isoparaffins by dehydrogenation, oligomerization and saturation uses a single compressor to provide all feed and recycle requirements within the process arrangement. The single compressor can be employed for the integration of all three processes while surprisingly reducing equipment requirements throughout the integrated process arrangement. The compressor raises the effluent pressure of the effluent from the dehydrogenation zone to a level that eliminates the need for any additional compression for the recycle of hydrogen to the saturation zone, eliminates the need for refrigeration to recover butanes from the dehydrogenation zone effluent and allow an essentially complete elimination of heavies from the feed to the oligomerization reaction zone.Type: GrantFiled: September 23, 1997Date of Patent: January 5, 1999Assignee: UOP LLCInventors: Laurence O. Stine, Steven C. Gimre
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Patent number: 5811608Abstract: A process for the production of saturated oligomers by the oligomerization of light olefins to heavier olefins and the saturation of the heavy olefins is improved by the recycle of the heavy paraffins to the oligomerization zone. The recycle of the heavy paraffins improves the selectivity of the oligomerization for C.sub.8 paraffin products and reduces catalyst fouling. The reduced catalyst fouling can be used to operate the oligomerization zone at lower pressure and facilitate its integration with a dehydrogenation zone for the production of the light olefin stream.Type: GrantFiled: December 15, 1995Date of Patent: September 22, 1998Assignee: UOP LLCInventors: Laurence O. Stine, Brian S. Muldoon, Steven C. Gimre, Robert R. Frame