Patents by Inventor Paolo Palmas

Paolo Palmas 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).

  • Process and apparatus for mixing two streams of catalyst
    Patent number: 8747758
    Abstract: A process and apparatus for mixing streams of regenerated and carbonized catalyst involves passing a catalyst stream into and out of a chamber in a lower section of a riser. The chamber fosters mixing of the catalyst streams to reduce their temperature differential before contacting hydrocarbon feed.
    Type: Grant
    Filed: December 12, 2011
    Date of Patent: June 10, 2014
    Assignee: UOP LLC
    Inventors: Lev Davydov, Lisa M. Wolschlag, Paolo Palmas, Robert L. Mehlberg, Mohammad-Reza Mostofi-Ashtiani, Daniel R. Johnson, Chad R. Huovie, Michael S. Sandacz, Peter J. Van Opdorp, Thomas W. Lorsbach, Karthikeyan Paramanandam
  • Counter-Current Fluidized Bed Reactor for the Dehydrogenation of Olefins
    Publication number: 20140142362
    Abstract: A process and apparatus for the dehydrogenation of paraffins is presented. The process utilizes a reactor that includes a slower flow of catalyst through the reactor, with a counter current flow of gas through the catalyst bed. The catalyst is regenerated and distributed over the top of the catalyst bed, and travels through the bed with the aid of reactor internals to limit backmixing of the catalyst.
    Type: Application
    Filed: November 20, 2012
    Publication date: May 22, 2014
    Applicant: UOP LLC
    Inventors: Lev Davydov, Wolfgang A. Spieker, Paolo Palmas
  • Counter-Current Fluidized Bed Reactor for the Dehydrogenation of Olefins
    Publication number: 20140140895
    Abstract: A process and apparatus for the dehydrogenation of paraffins is presented. The process utilizes a reactor that includes a slower flow of catalyst through the reactor, with a counter current flow of gas through the catalyst bed. The catalyst is regenerated and distributed over the top of the catalyst bed, and travels through the bed with the aid of reactor internals to limit backmixing of the catalyst.
    Type: Application
    Filed: November 20, 2012
    Publication date: May 22, 2014
    Applicant: UOP LLC
    Inventors: Lev Davydov, Wolfgang A. Spieker, Paolo Palmas
  • Process for separating particulate solids from a gas stream
    Patent number: 8702848
    Abstract: One exemplary embodiment can be a process for separating particulate solids from a gas stream. The process can include regenerating a catalyst in a regenerator, separating particulate solids in first and second cyclone stages, passing the gas stream from the second cyclone stage to an external third stage separator, and passing the gas stream from the external third stage separator to a cyclone recirculator to obtain a clean gas stream.
    Type: Grant
    Filed: May 22, 2013
    Date of Patent: April 22, 2014
    Assignee: UOP LLC
    Inventors: Sathit Kulprathipanja, Paolo Palmas, Richard A. Johnson, II
  • Process for contacting hydrocarbon feed and catalyst
    Patent number: 8691081
    Abstract: A process for distributing a deflecting media into an axial center of a riser to push catalyst outwardly toward the feed injectors ensures better contacting between hydrocarbon feed and catalyst.
    Type: Grant
    Filed: September 9, 2009
    Date of Patent: April 8, 2014
    Assignee: UOP LLC
    Inventors: Keith A. Couch, Paolo Palmas, Jason P. Lambin, Giovanni Spinelli
  • Hydrocarbon conversion apparatus including fluid bed reaction vessel and related processes
    Patent number: 8691155
    Abstract: Embodiments of a hydrocarbon conversion apparatus are provided, as are embodiments of a hydroprocessing conversion process. In one embodiment, the hydrocarbon conversion apparatus includes a reaction vessel having a reaction chamber and a feed distribution chamber. A riser fluidly couples the feed distribution chamber to the reaction chamber, and a catalyst recirculation standpipe fluidly couples the reaction chamber to the feed distribution chamber. The catalyst recirculation standpipe forms a catalyst recirculation circuit with the reaction chamber, the feed distribution chamber, and the riser. A catalyst is circulated through the catalyst recirculation circuit during operation of the hydrocarbon conversion apparatus.
    Type: Grant
    Filed: March 18, 2011
    Date of Patent: April 8, 2014
    Assignee: UOP LLC
    Inventors: Paolo Palmas, Daniel Robert Johnson, Clayton C. Sadler
  • METHODS AND FUEL PROCESSING APPARATUSES FOR UPGRADING A PYROLYSIS OIL STREAM AND A HYDROCARBON STREAM
    Publication number: 20140034550
    Abstract: Methods and apparatuses for upgrading a pyrolysis oil stream and a hydrocarbon stream are provided herein. In an embodiment, a method for upgrading a pyrolysis oil stream and a hydrocarbon stream includes separately introducing the pyrolysis oil stream and the hydrocarbon stream into a reaction zone to form a mixture of the pyrolysis oil stream and the hydrocarbon stream in the reaction zone. The mixture of the pyrolysis oil stream and the hydrocarbon stream is catalytically cracked in the presence of a particulate cracking catalyst in the reaction zone. The pyrolysis oil stream is maintained at a temperature of less than or equal to about 100° C. substantially up to introduction into the reaction zone.
    Type: Application
    Filed: July 31, 2012
    Publication date: February 6, 2014
    Applicant: UOP LLC
    Inventors: Lance Awender Baird, Paolo Palmas, Sathit Kulprathipanja
  • METHODS AND FUEL PROCESSING APPARATUSES FOR UPGRADING A PYROLYSIS OIL STREAM AND A HYDROCARBON STREAM
    Publication number: 20140034552
    Abstract: Methods and fuel processing apparatuses for upgrading a pyrolysis oil stream and a hydrocarbon stream are provided herein. In an embodiment, a method for upgrading a pyrolysis oil stream and a hydrocarbon stream includes providing a pyrolysis oil stream and providing a hydrocarbon stream separate from the pyrolysis oil stream. The pyrolysis oil stream and the hydrocarbon stream are mixed in a mixing zone and in the absence of a particulate cracking catalyst. The pyrolysis oil stream and the hydrocarbon stream are introduced in a substantially common direction into the mixing zone to form a mixture of the pyrolysis oil stream and the hydrocarbon stream. The mixture of the pyrolysis oil stream and the hydrocarbon stream are catalytically cracked in the presence of the particulate cracking catalyst.
    Type: Application
    Filed: July 31, 2012
    Publication date: February 6, 2014
    Applicant: UOP LLC
    Inventors: Lance Awender Baird, Paolo Palmas
  • METHODS AND FUEL PROCESSING APPARATUSES FOR UPGRADING A PYROLYSIS OIL STREAM AND A HYDROCARBON STREAM
    Publication number: 20140034554
    Abstract: Methods and apparatuses for upgrading a pyrolysis oil stream and a hydrocarbon stream are provided. In an embodiment, a method for upgrading a pyrolysis oil stream and a hydrocarbon stream includes providing the pyrolysis oil stream and providing the hydrocarbon stream separate from the pyrolysis oil stream. The pyrolysis oil stream and the hydrocarbon stream are introduced into a reaction zone. Deposits form adjacent to a pyrolysis oil outlet of the pyrolysis oil stream. The pyrolysis oil stream and the hydrocarbon stream are catalytically cracked in the presence of a particulate cracking catalyst in the reaction zone. During catalytic cracking, the pyrolysis oil deposits adjacent the pyrolysis oil outlet of the pyrolysis oil stream are removed, such as with a cleaning head.
    Type: Application
    Filed: July 31, 2012
    Publication date: February 6, 2014
    Applicant: UOP LLC
    Inventors: Sathit Kulprathipanja, Paolo Palmas, Lance Awender Baird
  • PROCESS AND APPARATUS FOR DISTRIBUTING HYDROCARBON FEED TO A CATALYST STREAM
    Publication number: 20140001096
    Abstract: A process and apparatus described is for distributing hydrocarbon feed to catalyst in a riser. Hydrocarbon feed is delivered to a plenum in the riser. Nozzles from the plenum inject feed into the riser to contact the catalyst. Streams of regenerated catalyst and carbonized catalyst may be passed to the riser and mixed around an insert in a lower section of a riser. The plenum may be located in the riser.
    Type: Application
    Filed: June 27, 2012
    Publication date: January 2, 2014
    Applicant: UOP LLC
    Inventors: Roger L. Throndson, Paolo Palmas, Lev Davydov, Mohammad-Reza Mostofi-Ashtiani
  • PROCESS AND APPARATUS FOR DISTRIBUTING HYDROCARBON FEED TO A CATALYST STREAM
    Publication number: 20140004018
    Abstract: A process and apparatus described is for distributing hydrocarbon feed to catalyst in a riser. Hydrocarbon feed is delivered to a plenum in the riser. Nozzles from the plenum inject feed into the riser to contact the catalyst. Streams of regenerated catalyst and carbonized catalyst may be passed to the riser and mixed around an insert in a lower section of a riser. The plenum may be located in the riser.
    Type: Application
    Filed: June 27, 2012
    Publication date: January 2, 2014
    Applicant: UOP LLC
    Inventors: Roger L. Throndson, Paolo Palmas, Lev Davydov, Mohammad-Reza Mostofi-Ashtiani
  • Process for venting a catalyst cooler
    Patent number: 8609566
    Abstract: The process herein provide a catalyst cooler with a vent that communicates fluidizing gas to a lower chamber of a regenerator. Air that is used as fluidizing gas can then be consumed in the regenerator without promoting after burn in the upper chamber.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: December 17, 2013
    Assignee: UOP LLC
    Inventors: Paolo Palmas, Daniel N. Myers
  • Char-Handling Processes in a Pyrolysis System
    Publication number: 20130327629
    Abstract: Char-handling processes for controlling overall heat balance, ash accumulation, and afterburn in a reheater are provided. Carbonaceous biomass feedstock is pyrolyzed using a heat transfer medium forming pyrolysis products and a spent heat transfer medium. The spent heat transfer medium is separated into segregated char and char-depleted spent heat transfer medium. The char-depleted spent heat transfer medium is introduced into a dense bed of heat transfer medium fluidized by a stream of oxygen-containing regeneration gas. All or a portion of the segregated char is combusted in the dense bed using the stream of oxygen-containing regeneration gas. A portion of the segregated char may be exported out of the pyrolysis system to control the overall heat balance and ash accumulation.
    Type: Application
    Filed: July 8, 2011
    Publication date: December 12, 2013
    Applicants: ENSYN RENEWABLES, INC.
    Inventors: Paolo Palmas, Paul A. Sechrist, Sid Kulprathipanja, Stanley J. Frey, Barry Freel, Daniel N. Myers
  • For drying regenerated catalyst in route to a propane dehydrogenation reactor
    Patent number: 8603406
    Abstract: An apparatus and process are presented for drying a catalyst in a reactor-regenerator system. The process includes a continuous operating system with catalyst circulating between a reactor and regenerator, and the catalyst is dried before returning the catalyst to the reactor. The process uses air that is split between the drying stage and the combustion stage without adding equipment outside of the regenerator, minimizing energy, capital cost, and space requirements.
    Type: Grant
    Filed: August 30, 2010
    Date of Patent: December 10, 2013
    Assignee: UOP LLC
    Inventors: David N. Myers, Daniel N. Myers, Paolo Palmas, Laura E. Leonard, Wolfgang A. Spieker
  • Process for regenerating catalyst
    Patent number: 8563455
    Abstract: Disclosed is a catalyst distributor and process for mixing spent catalyst and recycled regenerated catalyst in a regenerator vessel. Mixing is conducted in a confined space to which catalyst is delivered from catalyst conduits protruding through the wall of the regenerator.
    Type: Grant
    Filed: September 30, 2010
    Date of Patent: October 22, 2013
    Assignee: UOP LLC
    Inventors: Paolo Palmas, Daniel R. Johnson
  • PROCESS FOR SEPARATING PARTICULATE SOLIDS FROM A GAS STREAM
    Publication number: 20130263735
    Abstract: One exemplary embodiment can be a process for separating particulate solids from a gas stream. The process can include regenerating a catalyst in a regenerator, separating particulate solids in first and second cyclone stages, passing the gas stream from the second cyclone stage to an external third stage separator, and passing the gas stream from the external third stage separator to a cyclone recirculator to obtain a clean gas stream.
    Type: Application
    Filed: May 22, 2013
    Publication date: October 10, 2013
    Inventors: Sathit Kulprathipanja, Paolo Palmas, Richard A. Johnson, II
  • PROCESS FOR REGENERATING CATALYST
    Publication number: 20130260984
    Abstract: Disclosed is a catalyst distributor and process for mixing spent catalyst and recycled regenerated catalyst in a regenerator vessel. Mixing is conducted in a confined space to which catalyst is delivered from catalyst conduits protruding through the wall of the regenerator.
    Type: Application
    Filed: May 22, 2013
    Publication date: October 3, 2013
    Inventors: Paolo Palmas, Daniel R. Johnson
  • PROCESS FOR MODIFYING A FLUID CATALYTIC CRACKING UNIT, AND AN APPARATUS RELATING THERETO
    Publication number: 20130247559
    Abstract: One exemplary embodiment can be a process for modifying a fluid catalytic cracking unit. The process can include adding a carbon monoxide boiler to the fluid catalytic cracking unit to receive a bypassed flue gas stream from a power recovery expander for increasing capacity of the fluid catalytic cracking unit.
    Type: Application
    Filed: March 23, 2012
    Publication date: September 26, 2013
    Applicant: UOP, LLC
    Inventors: Paolo Palmas, Richard A. Johnson, II, Ronald Gatan
  • PROCESS AND APPARATUS FOR MIXING TWO STREAMS OF CATALYST
    Publication number: 20130250717
    Abstract: A process and apparatus for mixing streams of regenerated and carbonized catalyst utilizes a ramp or bend provided on only one of the catalyst conduits to provide mixing advantages.
    Type: Application
    Filed: March 20, 2012
    Publication date: September 26, 2013
    Applicant: UOP LLC
    Inventors: Daniel R. Johnson, Paolo Palmas
  • MTO REGENERATOR MULTI-PASS GRIDS
    Publication number: 20130252799
    Abstract: A process and device for the regeneration of catalyst is presented. The device includes a series of grids within a regeneration vessel, where each grid includes small openings for the passage of gas, and larger openings for the passage of catalyst. The grids span horizontally across the vessel, and are spaced vertically apart to create a flow of catalyst down through the regenerator.
    Type: Application
    Filed: April 27, 2012
    Publication date: September 26, 2013
    Applicant: UOP LLC
    Inventors: Richard A Johnson, II, Paolo Palmas