Patents by Inventor Trung Pham

Trung Pham 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: 9914679
    Abstract: One or more processes for recovering entrained ionic liquid from a hydrocarbon phase containing droplets of ionic liquid are described. The processes includes contacting the hydrocarbon phase containing the droplets of ionic liquid with a retaining material in a separation zone. The droplets of ionic liquid are retained by the retaining material. The ionic liquid may be recovered from the retaining material with a solvent or desorbent. The retaining material may be regenerated and the ionic liquid may be reactivated. The retaining material may be used in a wash vessel to retain or remove contaminant solids within the reactor or other vessels.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: March 13, 2018
    Assignee: UOP LLC
    Inventors: Kurt Detrick, David A. Wegerer, Robert J. Schmidt, Trung Pham, Avram M. Buchbinder, Praneeth D. Edirisinghe, Susie C. Martins
  • Patent number: 9858678
    Abstract: A system and method for human motion recognition are provided. The system includes a video sequence decomposer, a feature extractor, and a motion recognition module. The video sequence decomposer decomposes a video sequence into a plurality of atomic actions. The feature extractor extracts features from each of the plurality of atomic actions, the features including at least a motion feature and a shape feature. And the motion recognition module performs motion recognition for each of the plurality of atomic actions in response to the features.
    Type: Grant
    Filed: June 12, 2014
    Date of Patent: January 2, 2018
    Assignee: Agency for Science, Technology and Research
    Inventors: Teck Wee Chua, Nam Trung Pham, Karianto Leman, Richard Philippe Chang, Yue Wang
  • Patent number: 9777226
    Abstract: Methods and systems for slurry hydrocracking with reduced feed bypass and methods for modulating an amount of toluene insoluble material present in a slurry hydrocracking reactor are provided. An exemplary slurry hydrocracking method comprises the steps of: combining a hydrocarbon feed and a slurry hydrocracking catalyst or catalyst precursor to generate a slurry hydrocracking feed; introducing the slurry hydrocracking feed to a slurry hydrocracking reactor under hydrocracking conditions suitable to generate a first product stream; drawing a drag stream from the slurry hydrocracking reactor, the drag stream comprising a hydrocarbon, mesophase material, and solid catalyst particles; separating the drag stream into a first separated stream and a recycle stream, with the first separated stream comprising mesophase material and solid catalyst particles, and the recycle stream comprising the hydrocarbon; and directing the recycle stream into the slurry hydrocracking reactor.
    Type: Grant
    Filed: September 8, 2014
    Date of Patent: October 3, 2017
    Assignee: UOP LLC
    Inventors: Trung Pham, Grant Yokomizo, Robert Haizmann
  • Patent number: 9776877
    Abstract: Processes for separating conjunct polymer from an organic phase are described. A mixture comprising an ionic liquid phase and the organic phase into the ionic phase and an organic phase comprising the conjunct polymer and at least one silyl or boryl compound. The organic phase is separated in a fractionation column into an overhead fraction comprising unreacted silane or borane compound and a bottoms fraction comprising the conjunct polymer and the silyl or boryl compound. The bottoms fraction is passed through an adsorption zone, and the silyl or boryl compound is recovered. Alternatively, the organic phase is passed through an adsorption zone first to remove the conjunct polymer and then a fractionation zone to separate the unreacted silane or borane compound from the silyl or boryl compound.
    Type: Grant
    Filed: December 11, 2014
    Date of Patent: October 3, 2017
    Assignee: UOP LLC
    Inventors: David A. Wegerer, Trung Pham
  • Patent number: 9732289
    Abstract: An integrated process and apparatus for conversion of gas oil and heavy oil is described. The process includes passing a gas oil feed to a fluid catalytic cracking (FCC) zone to obtain a FCC effluent; separating the FCC effluent in a separation zone into at least two fractions comprising a clarified slurry oil fraction and an overhead fraction; passing the clarified slurry oil fraction to a slurry hydrocracking zone forming at least a naphtha stream; and recycling at least a portion of the slurry hydrocracking naphtha stream to the FCC zone.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: August 15, 2017
    Assignee: UOP LLC
    Inventors: Hosoo Lim, Trung Pham, Zhihao Fei, Grant H. Yokomizo, Ping Sun
  • Patent number: 9698676
    Abstract: Techniques are presented for determining current levels based on the behavior of a charge pump system while driving a load under regulation. Rather than diving the load directly, a fixed pump output voltage is used to supply a step-down regulator, which it turn drives the load at the selected voltage. While driving the load under regulation, the number of pump clocks during a set interval is counted. This can be compared to a reference that can be obtained, for example, from the numbers of cycles needed to drive a known load current over an interval of the duration. By comparing the counts, the amount of current being drawn by the load can be determined. This technique can be applied to determining leakage from circuit elements, such as word lines in a non-volatile memory.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: July 4, 2017
    Assignee: SANDISK TECHNOLOGIES LLC
    Inventors: Jonathan Huynh, Trung Pham, Sung-en Wang, Jongmin Park
  • Publication number: 20170183275
    Abstract: The present invention involves processes and equipment for handling chloride in an ionic liquid alkylation system. The processes involve not only breaking down the organic chloride to active HCl for ionic liquid activation, but also recovering HCl in the effluent downstream to maintain the HCl requirements while also reducing HCl emissions. This equipment may be used in conjunction with an isomerization reaction zone which is integrated into the ionic liquid alkylation process to further isomerize n-paraffins to isoparaffins for recycle to the alkylation reaction zone.
    Type: Application
    Filed: November 8, 2016
    Publication date: June 29, 2017
    Inventors: Kurt Detrick, Douglas A. Nafis, David A. Wegerer, Eric Leeton, Trung Pham
  • Patent number: 9567272
    Abstract: A process is presented for the production of light olefins. The process provides for the separation of the effluent stream from a catalytic cracking process into a stream having light olefins and a stream having heavier hydrocarbons. The heavier stream is oligomerized to generate an oligomer stream having heavier hydrocarbons, and then separated into a stream to be passed to the catalytic cracking process, and a stream to be passed to a reforming unit.
    Type: Grant
    Filed: June 26, 2014
    Date of Patent: February 14, 2017
    Assignee: UOP LLC
    Inventors: Robert L. Mehlberg, Michael R. Smith, Trung Pham
  • Patent number: 9527054
    Abstract: Methods and apparatuses are provided for cracking a hydrocarbon. The method includes contacting a first hydrocarbon stream with a first cracking catalyst at a first cracking temperature in a first riser to produce a first riser effluent and a first spent catalyst. A second hydrocarbon stream is contacted with a second cracking catalyst at a second cracking temperature in a second riser to produce a second riser effluent and a second spent catalyst, where the second cracking temperature is less than the first cracking temperature. The first riser effluent and the second riser effluent are combined to produce a mixed riser effluent, and the mixed riser effluent is fractionated in a fractionation zone to produce a light cycle oil. The first spent catalyst and the second spent catalyst are combined in a reactor to produce a mixed spent catalyst.
    Type: Grant
    Filed: May 9, 2014
    Date of Patent: December 27, 2016
    Assignee: UOP LLC
    Inventors: Trung Pham, Lev Davydov, Lance Awender Baird
  • Patent number: 9522859
    Abstract: Methods of recovering droplets of ionic liquid catalyst from a process stream are described. The volume fraction of ionic liquid in the hydrocarbon is increased to cause the ionic liquid droplets to coalesce. One method incorporates various combinations of gravity separation zone(s) and fractionation zones. Another method involves using a combination of a flash vessel and a fractionation zone, as well as an optional gravity separation zone.
    Type: Grant
    Filed: December 11, 2014
    Date of Patent: December 20, 2016
    Assignee: UOP LLC
    Inventors: Avram M. Buchbinder, Kurt Detrick, Trung Pham
  • Publication number: 20160289569
    Abstract: Processes for the production of aromatics from a pyrolysis oil. The pyrolysis oil may be obtained from a biomass by fast pyrolysis and may be filtered and upgraded to provide an aromatic rich hydrocarbon product. The aromatic rich hydrocarbon product may be passed to a separation zone to separate non-aromatic hydrocarbons from the aromatics. The remaining aromatics may be separated into aromatic product rich streams based upon the desired aromatics. Isomerization and transalkylation zones may be included to increase the yield depending on the product or desired aromatic. The non-aromatic hydrocarbons may be passed to a reformer to be converted to aromatics and hydrogen.
    Type: Application
    Filed: March 31, 2015
    Publication date: October 6, 2016
    Inventors: Lance A. Baird, Trung Pham
  • Patent number: 9434662
    Abstract: An integrated hydrocarbon conversion process is described. The process includes contacting a heavy hydrocarbon feedstock with a hydrocarbon cracking catalyst in a fluidized reactor zone to produce light olefins to form a fluid catalytic cracker (FCC) effluent stream comprising a range of hydrocarbons. The FCC effluent stream is separated to form at least a stream rich in C4 hydrocarbons which comprises isobutane and 1-butene. The stream rich in C4 hydrocarbons is introduced into an alkylation reaction zone where the isobutane and the 1-butene are alkylated to form a reaction product mixture comprising dimethylhexanes and C9+ hydrocarbons. The reaction product mixture is dehydrocyclized to form a stream rich in xylenes.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: September 6, 2016
    Assignee: UOP LLC
    Inventors: Trung Pham, Susie C. Martins, Douglas A. Nafis
  • Publication number: 20160167038
    Abstract: Processes for separating conjunct polymer from an organic phase are described. A mixture comprising an ionic liquid phase and the organic phase into the ionic phase and an organic phase comprising the conjunct polymer and at least one silyl or boryl compound. The organic phase is separated in a fractionation column into an overhead fraction comprising unreacted silane or borane compound and a bottoms fraction comprising the conjunct polymer and the silyl or boryl compound. The bottoms fraction is passed through an adsorption zone, and the silyl or boryl compound is recovered. Alternatively, the organic phase is passed through an adsorption zone first to remove the conjunct polymer and then a fractionation zone to separate the unreacted silane or borane compound from the silyl or boryl compound.
    Type: Application
    Filed: December 11, 2014
    Publication date: June 16, 2016
    Inventors: David A. Wegerer, Trung Pham
  • Publication number: 20160168058
    Abstract: One or more processes for recovering entrained ionic liquid from a hydrocarbon phase containing droplets of ionic liquid are described. The processes includes contacting the hydrocarbon phase containing the droplets of ionic liquid with a retaining material in a separation zone. The droplets of ionic liquid are retained by the retaining material. The ionic liquid may be recovered from the retaining material with a solvent or desorbent. The retaining material may be regenerated and the ionic liquid may be reactivated. The retaining material may be used in a wash vessel to retain or remove contaminant solids within the reactor or other vessels.
    Type: Application
    Filed: December 12, 2014
    Publication date: June 16, 2016
    Inventors: Kurt Detrick, David A. Wegerer, Robert J. Schmidt, Trung Pham, Avram M. Buchbinder, Praneeth D. Edirisinghe, Susie C. Martins
  • Publication number: 20160168055
    Abstract: Methods of recovering droplets of ionic liquid catalyst from a process stream are described. The volume fraction of ionic liquid in the hydrocarbon is increased to cause the ionic liquid droplets to coalesce. One method incorporates various combinations of gravity separation zone(s) and fractionation zones. Another method involves using a combination of a flash vessel and a fractionation zone, as well as an optional gravity separation zone.
    Type: Application
    Filed: December 11, 2014
    Publication date: June 16, 2016
    Inventors: Avram M. Buchbinder, Kurt Detrick, Trung Pham
  • Publication number: 20160148391
    Abstract: A system and method for human motion recognition are provided. The system includes a video sequence decomposer, a feature extractor, and a motion recognition module. The video sequence decomposer decomposes a video sequence into a plurality of atomic actions. The feature extractor extracts features from each of the plurality of atomic actions, the features including at least a motion feature and a shape feature. And the motion recognition module performs motion recognition for each of the plurality of atomic actions in response to the features.
    Type: Application
    Filed: June 12, 2014
    Publication date: May 26, 2016
    Inventors: Teck Wee CHUA, Nam Trung PHAM, Karianto LEMAN, Richard Philippe CHANG, Yue WANG
  • Publication number: 20160130511
    Abstract: A process for recovering hydrocarbons from a slurry hydrocracking reactor. The hydrocarbons are recovered by taking a drag stream of the slurry in the reactor. After separating lighter hydrocarbons in a separation zone, the heavier hydrocarbons can be processed in a deashing zone, with a vacuum column bottoms from a separation of the effluent stream recovered from the reactor. The deashing zone can recover the heavier hydrocarbons in a deashed pitch. Additionally, a VGO rich stream from the deashing zone may be recycled back to the reactor.
    Type: Application
    Filed: November 6, 2014
    Publication date: May 12, 2016
    Inventors: Jagannathan Govindhakannan, Robert Haizmann, Trung Pham, Hans G. Lefebvre
  • Publication number: 20160130506
    Abstract: A process for de-ashing pitch. The pitch from a slurry hydrocracking process is mixed with a solvent. The mixture is separated into solvent and soluble materials and insoluble materials. The insoluble materials can be dried to recover solvent which may be recycled. The solvent and soluble materials are separated. The solvent may be recovered and recycled. Hi-Sol 15 may be the solvent. Additionally, CSO may be the solvent and a portion thereof may be used with the de-ashed pitch to make an asphalt binder.
    Type: Application
    Filed: November 6, 2014
    Publication date: May 12, 2016
    Inventors: Jagannathan Govindhakannan, Grant H. Yokomizo, Robert Haizmann, Hans G. Lefebvre, Trung Pham, Andrew J. Towarnicky
  • Patent number: 9330776
    Abstract: A high voltage step regulator, such as would be used to provide a regulated low voltage (on the order of a few volts) from a high voltage external supply (e.g. 12V), is presented. To protect the output transistor, through which the output is provided from the input, from breakdown, a depletion type device is connected between the supply and the output transistor. The control gate of the depletion device is then connected to the output level of the regulator. This reduces the voltage drop across the output transistor, helping to avoid violating design rules (EDR) on how great a voltage differential can be placed across the output transistor. Examples of applications for such a circuit are for various operating voltages on a non-volatile memory chip operating with a high voltage power supply.
    Type: Grant
    Filed: August 14, 2014
    Date of Patent: May 3, 2016
    Assignee: SanDISK Technologies Inc.
    Inventors: Jonathan Huynh, Jongmin Park, Trung Pham
  • Publication number: 20160068763
    Abstract: Methods and systems for slurry hydrocracking with reduced feed bypass and methods for modulating an amount of toluene insoluble material present in a slurry hydrocracking reactor are provided. An exemplary slurry hydrocracking method comprises the steps of: combining a hydrocarbon feed and a slurry hydrocracking catalyst or catalyst precursor to generate a slurry hydrocracking feed; introducing the slurry hydrocracking feed to a slurry hydrocracking reactor under hydrocracking conditions suitable to generate a first product stream; drawing a drag stream from the slurry hydrocracking reactor, the drag stream comprising a hydrocarbon, mesophase material, and solid catalyst particles; separating the drag stream into a first separated stream and a recycle stream, with the first separated stream comprising mesophase material and solid catalyst particles, and the recycle stream comprising the hydrocarbon; and directing the recycle stream into the slurry hydrocracking reactor.
    Type: Application
    Filed: September 8, 2014
    Publication date: March 10, 2016
    Inventors: Trung Pham, Grant Yokomizo, Robert Haizmann