Patents by Inventor Stephen Wayne Sohn

Stephen Wayne Sohn 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).

  • Combined reactor effluent and regenerant recirculation for detergent alkylation process
    Patent number: 9751817
    Abstract: A process for producing alkylaromatic compounds is described. The process involves utilizing at least a portion of the aromatic compound used to regenerate the alkylation catalyst in a spent alkylation reaction zone as a reactant in the active alkylation reaction zone. The process further includes utilizing a portion of the process stream leaving the alkylation zone as a recycle stream to the alkylation zone.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: September 5, 2017
    Assignee: UOP LLC
    Inventors: Priyesh Jayendrakumar Jani, Soumendra Mohan Banerjee, Stephen Wayne Sohn
  • Processes for making C-Colefins from Cand Cparaffins
    Patent number: 9394215
    Abstract: Processes for making CX to CY olefins are provided. The processes include reacting a feedstock comprising C5 and C6 olefins under dimerization or oligomerization conditions to provide a dimerization or oligomerization product. The product is separated into a stream comprising unreacted C5 and C6 paraffins, a stream comprising C10 to CX-1 olefins, and a stream comprising CX to CY olefins, wherein X is at least 14 and Y is greater than X and less than or equal to 36.
    Type: Grant
    Filed: July 19, 2011
    Date of Patent: July 19, 2016
    Assignee: UOP LLC
    Inventors: Debarshi Majumder, Stephen Wayne Sohn, Bryan K. Glover, Andrea G. Bozzano
  • COMBINED REACTOR EFFLUENT AND REGENERANT RECIRCULATION FOR DETERGENT ALKYLATION PROCESS
    Publication number: 20150251975
    Abstract: A process for producing alkylaromatic compounds is described. The process involves utilizing at least a portion of the aromatic compound used to regenerate the alkylation catalyst in a spent alkylation reaction zone as a reactant in the active alkylation reaction zone. The process further includes utilizing a portion of the process stream leaving the alkylation zone as a recycle stream to the alkylation zone.
    Type: Application
    Filed: March 7, 2014
    Publication date: September 10, 2015
    Applicant: UOP LLC
    Inventors: Priyesh Jayendrakumar Jani, Soumendra Mohan Banerjee, Stephen Wayne Sohn
  • Methods for producing linear alkylbenzenes, paraffins, and olefins from natural oils and kerosene
    Patent number: 8502005
    Abstract: A method for producing a linear paraffin product from natural oil and kerosene includes providing a first feed stream comprising kerosene, pre-fractionating the first feed stream to produce a heart cut paraffin stream comprising paraffins in a heart cut range, and combining the heart cut paraffin stream with a second feed stream comprising natural oil to form a combined stream. The method further includes deoxygenating the natural oil and fractionating the combined stream to remove paraffins that are heavier than the heart cut range.
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: August 6, 2013
    Assignee: UOP LLC
    Inventors: Andrea G. Bozzano, Stephen Wayne Sohn
  • PROCESSES FOR MAKING CX-CY OLEFINS FROM C5 AND C6 PARAFFINS
    Publication number: 20130023708
    Abstract: Processes for making CX to CY olefins are provided. The processes include reacting a feedstock comprising C5 and C6 olefins under dimerization or oligomerization conditions to provide a dimerization or oligomerization product. The product is separated into a stream comprising unreacted C5 and C6 paraffins, a stream comprising C10 to CX-1 olefins, and a stream comprising CX to CY olefins, wherein X is at least 14 and Y is greater than X and less than or equal to 36.
    Type: Application
    Filed: July 19, 2011
    Publication date: January 24, 2013
    Applicant: UOP LLC
    Inventors: Debarshi Majumder, Stephen Wayne Sohn, Bryan K. Glover, Andrea G. Bozzano
  • Olefinic hydrocarbon separation process
    Patent number: 6225518
    Abstract: A molecular sieve used in a process for separating olefinic hydrocarbons from paraffinic hydrocarbons is regenerated in a method which removes diolefins and aromatic hydrocarbons from the molecular sieve. The method comprises contacting the sieve with alkaline water and then drying the sieve with stream of a superheated light paraffin. The molecular sieve may be present in either a guard bed used upstream of a main separation zone or as part of the main adsorptive separation zone.
    Type: Grant
    Filed: September 28, 1999
    Date of Patent: May 1, 2001
    Assignee: UOP LLC
    Inventors: Stephen Wayne Sohn, Santi Kulprathipanja