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).

  • Patent number: 9205393
    Abstract: A process and device for the flow of catalyst in a reactor is presented. The device includes a series of grids within a reactor vessel, where each grid includes small openings for the passage of gas and some catalyst particles, and larger openings for the more continuous passage of catalyst. The grids span horizontally across the vessel, and are spaced vertically apart to provide for the flow of catalyst down through the reactor.
    Type: Grant
    Filed: March 26, 2014
    Date of Patent: December 8, 2015
    Assignee: UOP LLC
    Inventors: Richard A. Johnson, II, Paolo Palmas, John J. Senetar, Daniel A. Kauff, Michael Stine
  • Patent number: 9205394
    Abstract: A process and apparatus described is for distributing fluidizing gas to a riser. Fluidizing gas is delivered to a plenum below the riser. A first stream of fluidizing gas is distributed from the plenum into a chamber in a riser and a second stream of fluidizing gas is distributed from the plenum into the riser outside of the chamber. First nozzles in the plenum have a first outlet in the chamber and second nozzles in the plenum have a second outlet outside of the chamber. Streams of regenerated catalyst and carbonized catalyst may be passed to the riser and mixed around the chamber in a lower section of a riser.
    Type: Grant
    Filed: March 31, 2014
    Date of Patent: December 8, 2015
    Assignee: UOP LLC
    Inventors: Paolo Palmas, Michael S. Sandacz, Michael A. Stine, Daniel R. Johnson
  • Patent number: 9181496
    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: Grant
    Filed: March 23, 2012
    Date of Patent: November 10, 2015
    Assignee: UOP LLC
    Inventors: Paolo Palmas, Richard A. Johnson, II, Ronald Gatan
  • Patent number: 9150466
    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: Grant
    Filed: November 20, 2012
    Date of Patent: October 6, 2015
    Assignee: UOP LLC
    Inventors: Lev Davydov, Wolfgang A. Spieker, Paolo Palmas
  • Publication number: 20150273424
    Abstract: A process and apparatus described is for distributing fluidizing gas to a riser. Fluidizing gas is delivered to a plenum below the riser. A first stream of fluidizing gas is distributed from the plenum into a chamber in a riser and a second stream of fluidizing gas is distributed from the plenum into the riser outside of the chamber. First nozzles in the plenum have a first outlet in the chamber and second nozzles in the plenum have a second outlet outside of the chamber. Streams of regenerated catalyst and carbonized catalyst may be passed to the riser and mixed around the chamber in a lower section of a riser.
    Type: Application
    Filed: March 31, 2014
    Publication date: October 1, 2015
    Applicant: UOP LLC
    Inventors: Paolo Palmas, Michael S. Sandacz, Michael A. Stine, Daniel R. Johnson
  • Publication number: 20150275101
    Abstract: A process and apparatus described is for distributing fluidizing gas to a riser. Fluidizing gas is delivered to a plenum below the riser. A first stream of fluidizing gas is distributed from the plenum into a chamber in a riser and a second stream of fluidizing gas is distributed from the plenum into the riser outside of the chamber. First nozzles in the plenum have a first outlet in the chamber and second nozzles in the plenum have a second outlet outside of the chamber. Streams of regenerated catalyst and carbonized catalyst may be passed to the riser and mixed around the chamber in a lower section of a riser.
    Type: Application
    Filed: March 31, 2014
    Publication date: October 1, 2015
    Applicant: UOP LLC
    Inventors: Paolo Palmas, Michael S. Sandacz, Michael A. Stine, Daniel R. Johnson
  • Publication number: 20150252725
    Abstract: A power generation process for use in a processing unit that includes the steps of: using a regenerator to produce a flue gas stream; removing catalyst particles from the flue gas stream; routing the flue gas stream to a combustor/expander unit after performing the step of removing catalyst particles; and using rotation of the turbine of the combustor/expander unit as a source of rotary power. Preferably, the combustor/expander unit includes a combustion chamber and a power recovery turbine housed within a single casing. In certain embodiments, the flue gas stream is routed between the regenerator and the combustor/expander without passing through a compressor.
    Type: Application
    Filed: March 6, 2014
    Publication date: September 10, 2015
    Applicant: UOP LLC
    Inventors: Xin X. Zhu, Joao Jorge da Silva Ferreira Alves, Paolo Palmas, Richard A. Johnson II, Michael R. Van de Cotte
  • Publication number: 20150240167
    Abstract: A process and apparatus for co-processing a hydrocarbon feedstock and a renewable biomass feedstock are described. Solid particles of biomass are introduced into the riser reactor zone and mixed with catalyst. The hydrocarbon feed stock is also introduced into the riser reactor zone. The solid particles of biomass react in the presence of the catalyst and are converted into oxygenated hydrocarbons, while the hydrocarbon reacts in the presence of the catalyst to form hydrocarbon products having a lower boiling point than the feedstock.
    Type: Application
    Filed: February 25, 2014
    Publication date: August 27, 2015
    Applicant: UOP LLC
    Inventors: Sathit Kulprathipanja, Paolo Palmas, Lance A. Baird
  • Patent number: 9044727
    Abstract: Embodiments of apparatuses and methods for controlling heat for rapid thermal processing of carbonaceous material are provided herein. The apparatus comprises a reheater for containing a fluidized bubbling bed comprising an oxygen-containing gas, inorganic heat carrier particles, and char and for burning the char into ash to form heated inorganic particles. An inorganic particle cooler is in fluid communication with the reheater to receive a first portion of the heated inorganic particles. The inorganic particle cooler is configured to receive a cooling medium for indirect heat exchange with the first portion of the heated inorganic particles to form first partially-cooled heated inorganic particles that are fluidly communicated to the reheater and combined with a second portion of the heated inorganic particles to form second partially-cooled heated inorganic particles. A reactor is in fluid communication with the reheater to receive the second partially-cooled heated inorganic particles.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: June 2, 2015
    Assignee: Ensyn Renewables, Inc.
    Inventors: Sathit Kulprathipanja, Paolo Palmas
  • Publication number: 20150148214
    Abstract: One exemplary embodiment can be a process for regenerating catalyst in a fluid catalytic cracking unit. Generally, the process includes providing a feed to a riser of a reaction vessel, and providing a stream to a distributor positioned within a void proximate to an inlet receiving unregenerated catalyst in a regenerator.
    Type: Application
    Filed: October 24, 2014
    Publication date: May 28, 2015
    Inventors: Daniel N. Myers, Paolo Palmas, David N. Myers
  • Patent number: 9023285
    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: Grant
    Filed: November 20, 2012
    Date of Patent: May 5, 2015
    Assignee: UOP LLC
    Inventors: Lev Davydov, Wolfgang A. Spieker, Paolo Palmas
  • Patent number: 9023286
    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: Grant
    Filed: April 27, 2012
    Date of Patent: May 5, 2015
    Assignee: UOP LLC
    Inventors: Richard A. Johnson, II, Paolo Palmas
  • Patent number: 9005431
    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: Grant
    Filed: June 27, 2012
    Date of Patent: April 14, 2015
    Assignee: UOP LLC
    Inventors: Roger L. Throndson, Paolo Palmas, Lev Davydov, Mohammad-Reza Mostofi-Ashtiani
  • Patent number: 8999248
    Abstract: A fluid catalytic cracking reactor including a vessel, a chamber housed within the vessel, and a plurality of cyclones housed within the vessel, but externally of the chamber. The plurality of cyclones are arranged in a plurality of cyclone clusters, where each of the cyclone clusters includes a grouping of at least two cyclones that share common outlet piping for communication with the chamber. Alternatively, a fluid catalytic cracking reactor including a vessel, a chamber housed within the vessel, and a plurality of catalytic separation devices housed within the vessel, but externally of the chamber. The catalytic separation devices are in communication with the chamber via outlet piping. Preferably, the catalytic separation devices of the reactor are also in communication with a plenum via separator gas outlet piping, and optionally at least one of the catalytic separation devices feeds an outlet vapor stream into at least two different separator gas outlet piping members.
    Type: Grant
    Filed: November 4, 2013
    Date of Patent: April 7, 2015
    Assignee: UOP LLC
    Inventors: Michael S. Sandacz, Michael A. Stine, Paolo Palmas, Sathit Kulprathipanja
  • Publication number: 20150090636
    Abstract: Methods and apparatuses are provided for cracking a hydrocarbon. The method includes contacting a hydrocarbon feed stream with a cracking catalyst at cracking conditions to produce a reactor effluent and a spent catalyst. The spent catalyst is transferred to a regenerator, where it is regenerated by contact with an oxygen supply gas at regeneration conditions to produce a regenerated catalyst.
    Type: Application
    Filed: October 2, 2013
    Publication date: April 2, 2015
    Applicant: UOP LLC
    Inventors: Thomas William Lorsbach, Paolo Palmas, Richard A. Johnson, II, Miladin Crnkovic
  • Patent number: 8936758
    Abstract: A process and apparatus for mixing streams of regenerated and carbonized catalyst involves passing a catalyst stream around an insert in a lower section of a riser. The insert fosters mixing of the catalyst streams to reduce their temperature differential before contacting hydrocarbon feed.
    Type: Grant
    Filed: March 20, 2012
    Date of Patent: January 20, 2015
    Assignee: UOP LLC
    Inventors: Paolo Palmas, Mohammad-Reza Mostofi-Ashtiani, Lev Davydov
  • Patent number: 8936756
    Abstract: The apparatus 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: January 20, 2015
    Assignee: UOP LLC
    Inventors: Paolo Palmas, Daniel N. Myers
  • Publication number: 20150005553
    Abstract: Vortex separation technology quickly and efficiently separates vapor from catalyst from two or more risers, in a singular separation vessel, controlling residence time and improving product conversion. One riser enters concentrically through the reactor vessel, then through the center of the separation vessel, ending in horizontal swirl arms. The second and any additional risers run external to the reactor vessel. The external risers transition to a 90° elbow and tangentially enter the reactor vessel, and then the separation vessel.
    Type: Application
    Filed: June 26, 2013
    Publication date: January 1, 2015
    Applicant: UOP LLC
    Inventors: Paolo Palmas, Paul S. Nishimura
  • Patent number: 8916099
    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: Grant
    Filed: March 20, 2012
    Date of Patent: December 23, 2014
    Assignee: UOP LLC
    Inventors: Daniel R. Johnson, Paolo Palmas
  • Patent number: 8911673
    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: Grant
    Filed: June 27, 2012
    Date of Patent: December 16, 2014
    Assignee: UOP LLC
    Inventors: Roger L. Throndson, Paolo Palmas, Lev Davydov, Mohammad-Reza Mostofi-Ashtiani