Patents by Inventor Paul R. Zimmerman

Paul R. Zimmerman 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).

  • Patent number: 10167433
    Abstract: A process and apparatus are disclosed for hydrocracking a hydrocarbon feed in a hydrocracking unit and hydrotreating a vaporous hydrocracked stream. The hydrotreated effluent stream can be separated and stripped to produce a ULSD stream fit for storage without further processing. The hydrocracked liquid stream can be stripped and fractionated to produce a diesel stream that can be transported to the hydrotreating unit.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: January 1, 2019
    Assignee: UOP LLC
    Inventor: Paul R. Zimmerman
  • Publication number: 20180044599
    Abstract: Processes and apparatuses are disclosed for removing heavy polynuclear aromatic compounds from a hydrocracked stream comprising passing at least a portion of the hydrocracked stream to a fractionation column to provide a plurality of fractionator product streams and a fractionator bottoms stream comprising unconverted hydrocarbons. A first stream and a second stream are taken from the fractionator bottoms stream. The first stream is passed through a heavy polynuclear aromatic adsorption zone to obtain a treated bottoms stream having a reduced concentration of heavy polynuclear aromatic compounds. The second stream is bypassed around the heavy polynuclear aromatic adsorption zone. Finally, the treated bottoms stream and the bypassed second stream are hydrocracked.
    Type: Application
    Filed: June 1, 2017
    Publication date: February 15, 2018
    Inventor: Paul R. Zimmerman
  • Patent number: 9752085
    Abstract: A process and apparatus are disclosed for hydrotreating a hydrocarbon feed in a hydrotreating unit and hydrocracking a liquid hydrotreating effluent stream in a hydrocracking unit. A hot separator separates the diesel in a liquid hot hydrotreating effluent stream that serves as feed to the hydrocracking unit. Low sulfur diesel product can be saturated to further upgrade its cetane rating.
    Type: Grant
    Filed: June 20, 2013
    Date of Patent: September 5, 2017
    Assignee: UOP LLC
    Inventors: Paul R. Zimmerman, Peter Kokayeff, Michael R. Smith
  • Patent number: 9732288
    Abstract: A process and apparatus are disclosed for hydrocracking hydrocarbon feed in a hydrocracking unit and hydrotreating a diesel product from the hydrocracking unit in a hydrotreating unit. The hydrocracking unit and the hydrotreating unit share the same recycle gas compressor. A make-up hydrogen stream may also be compressed in the recycle gas compressor. A warm separator separates recycle gas and hydrocarbons from diesel in the hydrotreating effluent, so fraction of the diesel is relatively simple. The warm separator also keeps the diesel product separate from the more sulfurous diesel in the hydrocracking effluent, and still retains heat needed for fractionation of lighter components from the low sulfur diesel product.
    Type: Grant
    Filed: June 4, 2014
    Date of Patent: August 15, 2017
    Assignee: UOP LLC
    Inventors: Paul R. Zimmerman, Andrew P. Wieber
  • Publication number: 20170226434
    Abstract: A process and apparatus are disclosed for hydrocracking a hydrocarbon feed in a hydrocracking unit and hydrotreating a vaporous hydrocracked stream. The hydrotreated effluent stream can be separated and stripped to produce a ULSD stream fit for storage without further processing. The hydrocracked liquid stream can be stripped and fractionated to produce a diesel stream that can be transported to the hydrotreating unit.
    Type: Application
    Filed: February 3, 2017
    Publication date: August 10, 2017
    Inventor: Paul R. Zimmerman
  • Patent number: 9657237
    Abstract: A process and apparatus are disclosed for hydrotreating a hydrocarbon feed in a hydrotreating unit and hydrocracking a second hydrocarbon stream in a hydrocracking unit. The hydrocracking unit and the hydrotreating unit may share the same recycle gas compressor. A make-up hydrogen stream may also be compressed in the recycle gas compressor. The second hydrocarbon stream may be a diesel stream from the hydrotreating unit. The diesel stream may be a diesel and heavier stream from a bottom of a hydrotreating fractionation column.
    Type: Grant
    Filed: January 22, 2015
    Date of Patent: May 23, 2017
    Assignee: UOP LLC
    Inventors: Paul R. Zimmerman, Peter Kokayeff
  • Patent number: 9284498
    Abstract: A process is disclosed for hydrocracking a primary hydrocarbon feed and a diesel co-feed in a hydrocracking unit and hydrotreating a diesel product from the hydrocracking unit in a hydrotreating unit. The diesel stream fed through the hydrocracking unit is pretreated to reduce sulfur and ammonia and can be upgraded with noble metal catalyst.
    Type: Grant
    Filed: January 15, 2015
    Date of Patent: March 15, 2016
    Assignee: UOP LLC
    Inventors: Peter Kokayeff, Paul R. Zimmerman
  • Patent number: 9109165
    Abstract: Integrated slurry hydrocracking (SHC) and coking methods for making slurry hydrocracking (SHC) distillates are disclosed. Representative methods involve passing a slurry comprising a vacuum column resid, a liquid coker product, and a solid particulate through an SHC reaction zone in the presence of hydrogen to obtain the SHC distillate. Atmospheric distillation in the SHC product recovery section yields a combined SHC gas oil/SHC pitch stream that is sent to coking to generate the liquid coker product. In a representative embodiment, vacuum distillation in the SHC product recovery is avoided, thereby eliminating equipment that is often most susceptible to fouling.
    Type: Grant
    Filed: November 15, 2008
    Date of Patent: August 18, 2015
    Assignee: UOP LLC
    Inventors: Paul R. Zimmerman, Dennis M. Clary
  • Patent number: 9074146
    Abstract: A process and apparatus are disclosed for hydrotreating a hydrocarbon feed in a hydrotreating unit and hydrocracking a second hydrocarbon stream in a hydrocracking unit. The hydrocracking unit and the hydrotreating unit may share the same recycle gas compressor. A make-up hydrogen stream may also be compressed in the recycle gas compressor. A hydrocracking separator separates recycle gas and hydrocarbons from the hydrocracking unit to be processed with effluent from the hydrotreating unit.
    Type: Grant
    Filed: March 29, 2012
    Date of Patent: July 7, 2015
    Assignee: UOP LLC
    Inventors: Paul R. Zimmerman, Peter Kokayeff
  • Publication number: 20150132196
    Abstract: A process and apparatus are disclosed for hydrotreating a hydrocarbon feed in a hydrotreating unit and hydrocracking a second hydrocarbon stream in a hydrocracking unit. The hydrocracking unit and the hydrotreating unit may share the same recycle gas compressor. A make-up hydrogen stream may also be compressed in the recycle gas compressor. The second hydrocarbon stream may be a diesel stream from the hydrotreating unit. The diesel stream may be a diesel and heavier stream from a bottom of a hydrotreating fractionation column.
    Type: Application
    Filed: January 22, 2015
    Publication date: May 14, 2015
    Inventors: Paul R. Zimmerman, Peter Kokayeff
  • Publication number: 20150119614
    Abstract: A process is disclosed for hydrocracking a primary hydrocarbon feed and a diesel co-feed in a hydrocracking unit and hydrotreating a diesel product from the hydrocracking unit in a hydrotreating unit. The diesel stream fed through the hydrocracking unit is pretreated to reduce sulfur and ammonia and can be upgraded with noble metal catalyst.
    Type: Application
    Filed: January 15, 2015
    Publication date: April 30, 2015
    Inventors: Peter Kokayeff, Paul R. Zimmerman
  • Patent number: 8999256
    Abstract: A process and apparatus are disclosed for hydrotreating a hydrocarbon feed in a hydrotreating unit and hydrocracking a liquid hydrotreating effluent stream in a hydrocracking unit. A hot separator separates the diesel in a liquid hot hydrotreating effluent stream that serves as feed to the hydrocracking unit. Low sulfur diesel product can be saturated to further upgrade its cetane rating.
    Type: Grant
    Filed: June 20, 2013
    Date of Patent: April 7, 2015
    Assignee: UOP LLC
    Inventors: Paul R. Zimmerman, Peter Kokayeff, Michael R. Smith
  • Patent number: 8999247
    Abstract: In one exemplary embodiment, a system for reacting a first feed can include a petroleum fraction having at least about 90%, by volume, with a boiling point of at least about 300° C. The system can include a bubble column reactor. The bubble column reactor, in turn, can include a first inlet for the first feed and a second inlet for a second feed including a gas rich in hydrogen. In addition, the petroleum fraction may be in counter-current flow with respect to the gas rich in hydrogen inside the bubble column reactor.
    Type: Grant
    Filed: October 17, 2012
    Date of Patent: April 7, 2015
    Assignee: UOP LLC
    Inventor: Paul R. Zimmerman
  • Patent number: 8940253
    Abstract: A process and apparatus are disclosed for hydrotreating a hydrocarbon feed in a hydrotreating unit and hydrocracking a second hydrocarbon stream in a hydrocracking unit. The hydrocracking unit and the hydrotreating unit may share the same recycle gas compressor. A make-up hydrogen stream may also be compressed in the recycle gas compressor. The second hydrocarbon stream may be a diesel stream from the hydrotreating unit. The diesel stream may be a diesel and heavier stream from a bottom of a hydrotreating fractionation column.
    Type: Grant
    Filed: March 29, 2012
    Date of Patent: January 27, 2015
    Assignee: UOP LLC
    Inventors: Paul R. Zimmerman, Peter Kokayeff
  • Patent number: 8936714
    Abstract: A process is disclosed for hydrocracking a primary hydrocarbon feed and a diesel co-feed in a hydrocracking unit and hydrotreating a diesel product from the hydrocracking unit in a hydrotreating unit. The diesel stream fed through the hydrocracking unit is pretreated to reduce sulfur and ammonia and can be upgraded with noble metal catalyst.
    Type: Grant
    Filed: November 28, 2012
    Date of Patent: January 20, 2015
    Assignee: UOP LLC
    Inventors: Peter Kokayeff, Paul R. Zimmerman
  • Publication number: 20140374311
    Abstract: A process and apparatus are disclosed for hydrotreating a hydrocarbon feed in a hydrotreating unit and hydrocracking a liquid hydrotreating effluent stream in a hydrocracking unit. A hot separator separates the diesel in a liquid hot hydrotreating effluent stream that serves as feed to the hydrocracking unit. Low sulfur diesel product can be saturated to further upgrade its cetane rating.
    Type: Application
    Filed: June 20, 2013
    Publication date: December 25, 2014
    Inventors: Paul R. Zimmerman, Peter Kokayeff, Michael R. Smith
  • Publication number: 20140377140
    Abstract: A process and apparatus are disclosed for hydrotreating a hydrocarbon feed in a hydrotreating unit and hydrocracking a liquid hydrotreating effluent stream in a hydrocracking unit. A hot separator separates the diesel in a liquid hot hydrotreating effluent stream that serves as feed to the hydrocracking unit. Low sulfur diesel product can be saturated to further upgrade its cetane rating.
    Type: Application
    Filed: June 20, 2013
    Publication date: December 25, 2014
    Inventors: Paul R. Zimmerman, Peter Kokayeff, Michael R. Smith
  • Patent number: 8888990
    Abstract: A process and apparatus are disclosed for hydrotreating a hydrocarbon feed in a hydrotreating unit and hydrocracking a second hydrocarbon stream in a hydrocracking unit. The hydrocracking unit and the hydrotreating unit may share the same recycle gas compressor. A make-up hydrogen stream may also be compressed in the recycle gas compressor. The second hydrocarbon stream may be a diesel stream from the hydrotreating unit. The diesel stream may be a diesel and heavier stream from a bottom of a hydrotreating fractionation column.
    Type: Grant
    Filed: March 29, 2012
    Date of Patent: November 18, 2014
    Assignee: UOP LLC
    Inventors: Paul R. Zimmerman, Peter Kokayeff
  • Patent number: 8871082
    Abstract: A process and apparatus are disclosed for hydrotreating a hydrocarbon feed in a hydrotreating unit and hydrocracking a second hydrocarbon stream in a hydrocracking unit. The hydrocracking unit and the hydrotreating unit may share the same recycle gas compressor. A make-up hydrogen stream may also be compressed in the recycle gas compressor. A hydrocracking separator separates recycle gas and hydrocarbons from the hydrocracking unit to be processed with effluent from the hydrotreating unit.
    Type: Grant
    Filed: March 29, 2012
    Date of Patent: October 28, 2014
    Assignee: UOP LLC
    Inventors: Paul R. Zimmerman, Peter Kokayeff
  • Publication number: 20140288339
    Abstract: A process and apparatus are disclosed for hydrocracking hydrocarbon feed in a hydrocracking unit and hydrotreating a diesel product from the hydrocracking unit in a hydrotreating unit. The hydrocracking unit and the hydrotreating unit share the same recycle gas compressor. A make-up hydrogen stream may also be compressed in the recycle gas compressor. A warm separator separates recycle gas and hydrocarbons from diesel in the hydrotreating effluent, so fraction of the diesel is relatively simple. The warm separator also keeps the diesel product separate from the more sulfurous diesel in the hydrocracking effluent, and still retains heat needed for fractionation of lighter components from the low sulfur diesel product.
    Type: Application
    Filed: June 4, 2014
    Publication date: September 25, 2014
    Inventors: Paul R. Zimmerman, Andrew P. Wieber