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).

  • Publication number: 20160167006
    Abstract: A process and apparatus for heating catalyst is presented. Cooler catalyst is removed from a reactor and heated with a hot gas in a riser, heated in a heating tube or heated in a heating chamber. Heated catalyst is disengaged from the hot gas if necessary and returned to the reactor. The process and apparatus can be used for producing light olefins. The hot gas may be a flue gas from an FCC regenerator or a combustion gas from a heater.
    Type: Application
    Filed: December 12, 2014
    Publication date: June 16, 2016
    Inventors: Paolo Palmas, Sathit Kulprathipanja
  • Publication number: 20160168051
    Abstract: A process and apparatus for heating catalyst is presented. Cooler catalyst is removed from a reactor and heated with a hot gas in a riser, heated in a heating tube or heated in a heating chamber. Heated catalyst is disengaged from the hot gas if necessary and returned to the reactor. The process and apparatus can be used for producing light olefins. The hot gas may be a flue gas from an FCC regenerator or a combustion gas from a heater.
    Type: Application
    Filed: December 12, 2014
    Publication date: June 16, 2016
    Inventors: Paolo Palmas, Sathit Kulprathipanja
  • Publication number: 20160168050
    Abstract: A process and apparatus for heating catalyst is presented. Cooler catalyst is removed from a reactor and heated with a hot gas in a riser, heated in a heating tube or heated in a heating chamber. Heated catalyst is disengaged from the hot gas if necessary and returned to the reactor. The process and apparatus can be used for producing light olefins. The hot gas may be a flue gas from an FCC regenerator or a combustion gas from a heater.
    Type: Application
    Filed: December 12, 2014
    Publication date: June 16, 2016
    Inventors: Zhihao Fei, Charles P. Luebke, Robert L. Mehlberg, Hosoo Lim, Lisa M. Wolschlag, Paolo Palmas
  • Publication number: 20160169506
    Abstract: A catalyst cooler for cooling regenerated catalyst in a regenerator associated with a fluid catalytic cracking unit. The catalyst cooler includes a first passage for transporting hot regenerated catalyst away from the regenerator and a second passage for returning cooled regenerated catalyst to the regenerator. The catalyst cooler also includes at least one heat exchanger. The second passage may be disposed within the first passage, or the first and second passage may each occupy a portion of a horizontal cross section of the catalyst cooler.
    Type: Application
    Filed: December 10, 2014
    Publication date: June 16, 2016
    Inventors: Paolo Palmas, Daniel N. Myers
  • Publication number: 20160158741
    Abstract: A stripping vessel for removing hydrocarbons from a catalyst and a process for removing hydrocarbons from a catalyst. In an FCC unit, the stripping vessel includes first and second stripping sections. The first stripping section includes at least one grid having a plurality of interesting members and openings therebetween. The second stripping section includes structured packing such as a plurality of ribbons. The one or more grids are spaced from the structured packing, and from each other, so as to minimize the accumulation of catalyst within the stripping vessel, preferably between about 0.91 m (3 ft) to about 1.5 m (5 ft).
    Type: Application
    Filed: December 5, 2014
    Publication date: June 9, 2016
    Inventors: Paolo Palmas, Andrew Jonathan Craig
  • Patent number: 9347005
    Abstract: Embodiments of methods and apparatuses for rapid thermal processing of carbonaceous material are provided herein. The method comprises the step of contacting a carbonaceous feedstock with heated inorganic heat carrier particles at reaction conditions effective to rapidly pyrolyze the carbonaceous feedstock to form a product stream comprising pygas, pyrolysis oil, and solids. The solids comprise char and cooled inorganic heat carrier particles. The reaction conditions include a reactor pressure of about 70 kPa gauge or greater.
    Type: Grant
    Filed: September 13, 2011
    Date of Patent: May 24, 2016
    Assignee: Ensyn Renewables, Inc.
    Inventors: Sathit Kulprathipanja, Paolo Palmas
  • Publication number: 20160129413
    Abstract: Methods and FCC apparatuses are provided for cracking hydrocarbons. An FCC apparatus includes a riser with a riser outlet positioned within a reactor catalyst collection area. A stripper is coupled to the reactor catalyst collection area, where the riser extends through the stripper, and where the stripper includes a stripper exterior wall. A sleeve is positioned within the stripper between the riser and the stripper exterior wall.
    Type: Application
    Filed: November 11, 2014
    Publication date: May 12, 2016
    Inventors: Sathit Kulprathipanja, Paolo Palmas
  • Publication number: 20160114316
    Abstract: Methods and apparatuses for regenerating catalysts and methods of inhibiting corrosion in catalyst regenerating apparatuses are provided. An exemplary apparatus includes: a metal vessel configured to receive a spent catalyst stream and contact at least a portion of the spent catalyst stream with an oxygen containing environment at a sufficiently high temperature to burn coke present in the spent catalyst stream; a refractory material overlying at least a portion of an inner surface of the metal vessel; and a corrosion inhibiting material in contact with at least a portion of the inner surface of the metal vessel and disposed between the inner surface and at least a portion of the refractory material, wherein the corrosion inhibiting material is heat stable at a temperature of at least up to about 400° F. (about 204° C.) and inhibits contact of an acid environment with the inner surface of the metal vessel.
    Type: Application
    Filed: October 28, 2014
    Publication date: April 28, 2016
    Inventors: Paolo Palmas, James W. Althoff, Sanford Allan Victor
  • Patent number: 9309468
    Abstract: An FCC process may include a distributor disposed in a recess in a wall of the riser for distributing gaseous hydrocarbon feed to a riser. The distributor may be shielded from upwardly flowing catalyst by a shield. An array of nozzles from the distributor may extend through openings in the shield.
    Type: Grant
    Filed: June 29, 2010
    Date of Patent: April 12, 2016
    Assignee: UOP LLC
    Inventors: Paolo Palmas, Paul S. Nishimura
  • Publication number: 20160083660
    Abstract: A process for increasing the yields of propylene is presented. The process is an FCC process for producing light olefins, and utilizes a smaller secondary reactor that uses the same catalyst, or a different catalyst as in the FCC reactor. The FCC effluent is separated, and C4 and C5 olefins are recovered. The C4 and C5 olefins are passed to the secondary reactor for cracking to generate increased light olefin yields.
    Type: Application
    Filed: September 24, 2014
    Publication date: March 24, 2016
    Inventors: Zhihao Fei, Charles P. Luebke, Hosoo Lim, Paolo Palmas, Lisa M. Wolschlag
  • Publication number: 20160067701
    Abstract: Catalyst regenerators and methods of their use are provided. A catalyst regenerator includes a combustion chamber with a combustion chamber diameter and a combustion chamber bottom. A mixing chamber is fluidly coupled to the combustion chamber at the combustion chamber bottom, where the mixing chamber has an exterior wall and a mixing chamber diameter less than the combustion chamber diameter. A first and second catalyst inlet are fluidly coupled to the mixing chamber, and a mixing cylinder is within the mixing chamber. The mixing cylinder and the exterior wall define an annular space there-between, and the mixing cylinder includes a cylinder opening.
    Type: Application
    Filed: September 5, 2014
    Publication date: March 10, 2016
    Inventors: Lev Davydov, Mohammad Reza Mostofi-Ashtiani, Paolo Palmas
  • Patent number: 9266083
    Abstract: Apparatuses and processes are provided for stripping gaseous hydrocarbons from particulate material. One process comprises the step of contacting particles that contain hydrocarbons with a stripping vapor in countercurrent flow to remove at least a portion of the hydrocarbons with the stripping vapor to form stripped particles. Contacting the particles includes advancing the particles down a sloping element of a structured packing toward a reinforcing rod that is disposed adjacent to a lower section of the sloping element. The particles are advanced down through an opening formed in the sloping element proximate the reinforcing rod. The particles are contacted with the stripping vapor that is rising up through the opening.
    Type: Grant
    Filed: December 28, 2011
    Date of Patent: February 23, 2016
    Assignee: UOP LLC
    Inventors: Mitchell John Kowalczyk, Paolo Palmas
  • Patent number: 9266103
    Abstract: Catalyst regenerators and methods of their use are provided. A catalyst regenerator includes a combustion chamber with a combustion chamber diameter and a combustion chamber bottom. A mixing chamber is fluidly coupled to the combustion chamber at the combustion chamber bottom, where the mixing chamber has an exterior wall and a mixing chamber diameter less than the combustion chamber diameter. A first and second catalyst inlet are fluidly coupled to the mixing chamber, and a mixing cylinder is within the mixing chamber. The mixing cylinder and the exterior wall define an annular space there-between, and the mixing cylinder includes a cylinder opening.
    Type: Grant
    Filed: September 5, 2014
    Date of Patent: February 23, 2016
    Assignee: UOP LLC
    Inventors: Lev Davydov, Mohammad Reza Mostofi-Ashtiani, Paolo Palmas
  • Publication number: 20160045922
    Abstract: An apparatus and process is disclosed for mitigating coking in an FCC reactor plenum. The apparatus and process utilize a baffle to create a inner volume for the product vapors to prevent contact with a relatively cool plenum. The baffle also limits the amount of the time the product vapors spend in the plenum minimizing time for coke formation and limit product vapors from entering low fluidization zones.
    Type: Application
    Filed: August 13, 2014
    Publication date: February 18, 2016
    Inventors: Syed Basheer Umar, Raul Zavala, Paolo Palmas, Richard A. Johnson, II
  • Publication number: 20160046883
    Abstract: An apparatus and process is disclosed for mitigating coking in an FCC reactor plenum. The apparatus and process utilize a baffle to create a inner volume for the product vapors to prevent contact with a relatively cool plenum. The baffle also limits the amount of the time the product vapors spend in the plenum minimizing time for coke formation and limit product vapors from entering low fluidization zones.
    Type: Application
    Filed: August 13, 2014
    Publication date: February 18, 2016
    Inventors: Syed Basheer Umar, Raul Zavala, Paolo Palmas, Richard A. Johnson, II
  • Publication number: 20160030906
    Abstract: Apparatuses and methods for separating regenerated catalyst are provided. In one embodiment, an apparatus for separating regenerated catalyst includes a regeneration vessel including a catalyst bed section. The apparatus includes a catalyst settler physically separated from the catalyst bed section by a wall extending within the regeneration vessel. The catalyst overflowing the catalyst bed section flows over the wall and enters the catalyst settler. The apparatus further includes a pipe in fluid communication with the catalyst settler and configured to deliver regenerated catalyst from the regeneration vessel to another vessel.
    Type: Application
    Filed: July 31, 2014
    Publication date: February 4, 2016
    Inventors: Miladin Crnkovic, Paolo Palmas, Richard A. Johnson, II, Thomas William Lorsbach
  • Patent number: 9238600
    Abstract: A process for improving the yield of ethylene and propylene from a light naphtha feedstock includes obtaining light naphtha feedstock from a primary cracking zone having a cracking catalyst. The light naphtha feedstock is contacted with an olefin catalyst in an olefin producing zone to produce an ethylene- and propylene-rich stream. After reacting with the olefin catalyst, the ethylene- and propylene-rich stream is separated from the olefin catalyst from in a separator zone. At least a portion of the olefin catalyst is regenerated by combusting coke deposited on a surface of the olefin catalyst in an oxygen-containing environment, and at least a portion of the olefin catalyst is heated. These portions could be the same one or they could be different. In some embodiments, at least a portion of the olefin catalyst could be neither regenerated nor heated. The olefin catalyst is returned to the olefin producing zone.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: January 19, 2016
    Assignee: UOP LLC
    Inventors: David A. Wegerer, Brian W. Hedrick, Zhihao Fei, Daniel N. Myers, Vincenza Myers, Paolo Palmas, Laura E. Leonard
  • Patent number: 9227167
    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: Grant
    Filed: July 25, 2011
    Date of Patent: January 5, 2016
    Assignee: UOP LLC
    Inventors: Paolo Palmas, Robert L. Mehlberg, Keith A. Couch, Paul S. Nishimura
  • Publication number: 20150360217
    Abstract: Disclosed is a process and apparatus for recycling flue gas from a regenerator back to the regenerator to provide fluidization gas needs. Catalyst may be separated from the flue gas before recycle and the flue gas may be compressed before recycle to the regenerator. The process and apparatus reduces the size capacity of downstream product recovery equipment by reducing gases derived by oxidation in the process and reduces the potential for after burn in the regenerator.
    Type: Application
    Filed: June 12, 2014
    Publication date: December 17, 2015
    Inventors: Paolo Palmas, Richard A. Johnson, II
  • Publication number: 20150360216
    Abstract: Disclosed is a process and apparatus for recycling flue gas from a regenerator back to the regenerator to provide fluidization gas needs. Catalyst may be separated from the flue gas before recycle and the flue gas may be compressed before recycle to the regenerator. The process and apparatus reduces the size capacity of downstream product recovery equipment by reducing gases derived by oxidation in the process and reduces the potential for after burn in the regenerator.
    Type: Application
    Filed: June 12, 2014
    Publication date: December 17, 2015
    Inventors: Paolo Palmas, Richard A. Johnson, II