Patents by Inventor Robert Mehlberg

Robert Mehlberg 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: 10563135
    Abstract: Processes for oligomerizing olefins to produce diesel. The oligomerization zone temperature is controlled to counteract catalyst deactivation caused by coking, by contaminants such as cyclo C5 and/or cyclo C6 hydrocarbons, or both. The temperature is increased in increments to ensure that that the oligomerization zone is producing product at a target product yield with a target product quality, which may be measured by a product cetane number. The target product yield is at least 50 wt % and a target product cetane number may be at least 35.
    Type: Grant
    Filed: November 2, 2016
    Date of Patent: February 18, 2020
    Assignee: UOP LLC
    Inventors: Zhihao Fei, Steven L. Krupa, Hosoo Lim, Charles P. Luebke, Robert Mehlberg, Christopher P. Nicholas, Lisa M. Wolschlag
  • Publication number: 20180264431
    Abstract: Reactor systems for use with ionic liquid catalyst. The reactor systems include one or more stages, which include a reactor and a heat exchanger, and a separation zone. The reactor and the heat exchanger may have a vertical orientation. Additionally, a separation vessel may also include a vertical orientation. The heat exchanger may allow for linear flow of process fluid to control residence time.
    Type: Application
    Filed: May 23, 2018
    Publication date: September 20, 2018
    Inventors: Eric Leeton, Kurt Detrick, Christian D. Freet, David S. Lafyatis, Robert Mehlberg, Sean G. Mueller, Gregory J. Schrad, Zhanping Xu
  • Patent number: 9815049
    Abstract: A method of controlling a hydrocarbon conversion process is described. The method involves introducing a reactant into a reaction zone containing an ionic liquid catalyst. The reaction zone has at least two zones. The mass transfer resistance in the second zone is greater than the mass transfer resistance in the first zone.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: November 14, 2017
    Assignee: UOP LLC
    Inventors: David S. Lafyatis, Sean G. Mueller, Zhanping Xu, Douglas A. Nafis, Robert Mehlberg, Kurt Detrick, Avram M. Buchbinder
  • Publication number: 20170240821
    Abstract: Processes for oligomerizing olefins to produce diesel. The oligomerization zone temperature is controlled to counteract catalyst deactivation caused by coking, by contaminants such as cyclo C5 and/or cyclo C6 hydrocarbons, or both. The temperature is increased in increments to ensure that that the oligomerization zone is producing product at a target product yield with a target product quality, which may be measured by a product cetane number. The target product yield is at least 50 wt % and a target product cetane number may be at least 35.
    Type: Application
    Filed: November 2, 2016
    Publication date: August 24, 2017
    Inventors: Zhihao Fei, Steven L. Krupa, Hosoo Lim, Charles P. Luebke, Robert Mehlberg, Christopher P. Nicholas, Lisa M. Wolschlag
  • Publication number: 20170144141
    Abstract: A method of controlling a hydrocarbon conversion process is described. The method involves introducing a reactant into a reaction zone containing an ionic liquid catalyst. The reaction zone has at least two zones. The mass transfer resistance in the second zone is greater than the mass transfer resistance in the first zone.
    Type: Application
    Filed: October 21, 2016
    Publication date: May 25, 2017
    Inventors: David S. Lafyatis, Sean G. Mueller, Zhanping Xu, Douglas A. Nafis, Robert Mehlberg, Kurt Detrick, Avram M. Buchbinder
  • Patent number: 9434894
    Abstract: A method and apparatus for processing hydrocarbons are described. The method includes fractionating a hydrocarbon stream to form at least two fractions. The first fraction is reformed to form a reformate stream, and the reformate stream is introduced into an aromatics processing zone to produce aromatic products. At least a portion of the second fraction is cracked in a fluid catalytic cracking unit. A selectively hydrogenated light naphtha stream is formed by separating the cracked hydrocarbon stream into at least two streams and selectively hydrogenating the light naphtha stream, or selectively hydrogenating the cracked hydrocarbon stream and separating the hydrogenated cracked hydrocarbon stream into at least two streams. Aromatics are extracted from the selectively hydrogenated light naphtha stream forming an extract stream and a raffinate stream. The extract stream is hydrotreated, sent to the aromatics processing zone to produce additional aromatic products.
    Type: Grant
    Filed: June 19, 2014
    Date of Patent: September 6, 2016
    Assignee: UOP LLC
    Inventors: Robert Mehlberg, Robert Jason Lee Noe, Antoine Negiz, Steven F. Zink
  • Publication number: 20150368571
    Abstract: A method and apparatus for processing hydrocarbons are described. The method includes fractionating a hydrocarbon stream to form at least two fractions. The first fraction is reformed to form a reformate stream, and the reformate stream is introduced into an aromatics processing zone to produce aromatic products. At least a portion of the second fraction is cracked in a fluid catalytic cracking unit. A selectively hydrogenated light naphtha stream is formed by separating the cracked hydrocarbon stream into at least two streams and selectively hydrogenating the light naphtha stream, or selectively hydrogenating the cracked hydrocarbon stream and separating the hydrogenated cracked hydrocarbon stream into at least two streams. Aromatics are extracted from the selectively hydrogenated light naphtha stream forming an extract stream and a raffinate stream. The extract stream is hydrotreated, sent to the aromatics processing zone to produce additional aromatic products.
    Type: Application
    Filed: June 19, 2014
    Publication date: December 24, 2015
    Inventors: Robert Mehlberg, Robert Jason Lee Noe, Antoine Negiz, Steven F. Zink
  • Publication number: 20130131412
    Abstract: A process and catalyst for improving the yield of propylene from residual oil feedstock includes obtaining residual oil feedstock from a vacuum distillation tower. The residual oil feedstock has contaminant metals such as sodium or vanadium. The residual oil feedstock is contacted with a cracking catalyst in a catalytic cracking zone to make products. A ZSM-5 zeolite, a binder, a filler and a metal trap are components of the cracking catalyst. The metal trap has a trapping agent in an outer shell of the catalyst, a trapping agent in the ZSM-5 binder or combinations thereof. After reacting, the cracking catalyst is separated from the products in a separator zone, then regenerated by combusting coke deposited on a surface of the cracking catalyst in an oxygen-containing environment. The cracking catalyst is returned to the catalytic cracking zone. The catalyst with the metal trap is also disclosed.
    Type: Application
    Filed: November 18, 2011
    Publication date: May 23, 2013
    Applicant: UOP LLC
    Inventors: Robert Mehlberg, Erick D. Gamas-Castellanos, Chad R. Huovie
  • Publication number: 20120136187
    Abstract: One exemplary embodiment can be a fluid catalytic cracking unit. The fluid catalytic cracking unit can include a first riser, a second riser, and a disengagement zone. The first riser can be adapted to receive a first feed terminating at a first reaction vessel having a first volume. The second riser may be adapted to receive a second feed terminating at a second reaction vessel having a second volume. Generally, the first volume is greater than the second volume. What is more, the disengagement zone can be for receiving a first mixture including at least one catalyst and one or more products from the first reaction vessel, and a second mixture including at least one catalyst and one or more products from the second reaction vessel. Typically, the first mixture is isolated from the second mixture.
    Type: Application
    Filed: February 8, 2012
    Publication date: May 31, 2012
    Applicant: UOP LLC
    Inventors: Paolo Palmas, Robert Mehlberg
  • Publication number: 20110282124
    Abstract: An embodiment can be a process for catalytically cracking a hydrocarbon feed. The process can include providing the hydrocarbon feed including an effective amount of one or more C4-C6 olefins for producing at least one light olefin to a riser. Typically, at least about 99%, by mole, of the hydrocarbon feed is a gas.
    Type: Application
    Filed: July 25, 2011
    Publication date: November 17, 2011
    Applicant: UOP LLC
    Inventors: Paolo Palmas, Robert Mehlberg, Keith Allen Couch, Paul Nishimura
  • Patent number: 8007728
    Abstract: One exemplary embodiment can be a fluid catalytic cracking system. The fluid catalytic cracking system can include a reaction zone including a riser having a top and a bottom adapted to receive spent catalyst at a first elevation and regenerated catalyst at a second elevation. Typically, the first elevation is lower than the second elevation. Additionally, the fluid catalytic cracking system can include a gas distributor contained near the bottom of the riser in communication with a hydrocarbon feed.
    Type: Grant
    Filed: December 11, 2008
    Date of Patent: August 30, 2011
    Assignee: UOP LLC
    Inventors: Paolo Palmas, Robert Mehlberg, Keith Allen Couch, Paul Nishimura
  • Patent number: 7914666
    Abstract: An FCC process producing lower NOx emissions during regeneration by using excess oxygen levels at less than or equal to about 0.5 mol-% and a plenum temperature above about 730° C. (about 1350° F.). The process may further include limiting the Pt content in the catalyst to less than or equal to about 0.5 ppm. NOx emissions, NO to NO2, produced through this process may be equal to or less than 25 ppmv. The process may also include adjusting the metal content of the feedstock for such metals as antimony, nickel, or vanadium. Additional variables for reducing NOx emissions that may be used in conjunction with this process may include increasing the flue gas residence time, injecting NH3 into the flue gas, adding or using NOx-reducing catalysts, increasing stripping of the catalyst, and increasing the catalyst zeolite to matrix ratio.
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: March 29, 2011
    Assignee: UOP LLC
    Inventors: Robert Mehlberg, Frank Rosser, Jr., Zhihao Fei, Carl Stevens
  • Publication number: 20100152515
    Abstract: One exemplary embodiment can be a fluid catalytic cracking system. The fluid catalytic cracking system can include a reaction zone including a riser having a top and a bottom adapted to receive spent catalyst at a first elevation and regenerated catalyst at a second elevation. Typically, the first elevation is lower than the second elevation. Additionally, the fluid catalytic cracking system can include a gas distributor contained near the bottom of the riser in communication with a hydrocarbon feed.
    Type: Application
    Filed: December 11, 2008
    Publication date: June 17, 2010
    Inventors: Paolo Palmas, Robert Mehlberg, Keith Allen Couch, Paul Nishimura
  • Publication number: 20100147744
    Abstract: One exemplary embodiment can be a fluid catalytic cracking unit. The fluid catalytic cracking unit can include a first riser, a second riser, and a disengagement zone. The first riser can be adapted to receive a first feed terminating at a first reaction vessel having a first volume. The second riser may be adapted to receive a second feed terminating at a second reaction vessel having a second volume. Generally, the first volume is greater than the second volume. What is more, the disengagement zone can be for receiving a first mixture including at least one catalyst and one or more products from the first reaction vessel, and a second mixture including at least one catalyst and one or more products from the second reaction vessel. Typically, the first mixture is isolated from the second mixture.
    Type: Application
    Filed: December 11, 2008
    Publication date: June 17, 2010
    Inventors: Paolo Palmas, Robert Mehlberg
  • Publication number: 20050197516
    Abstract: An alkylation process in which a recycle stream is cooled by heat exchange with the alkylation reactor effluent is disclosed.
    Type: Application
    Filed: April 6, 2005
    Publication date: September 8, 2005
    Inventors: Robert Mehlberg, Dale Shields, John Senetar