Patents by Inventor Keng H. Chung

Keng H. Chung 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: 20220355269
    Abstract: A method of treating or remediating contaminated material, such as water or soil, comprises contacting such material with asphaltenes. The asphaltenes are preferably produced as a by-product of petroleum refining and, in particular, a by-product of vacuum residua. An adsorbent material comprising such asphaltenes is also provided.
    Type: Application
    Filed: July 21, 2022
    Publication date: November 10, 2022
    Applicant: Well Resources Inc.
    Inventors: Warren CHUNG, Xuebing LI, Pei YU, Mengtao CUI, Quan SHI, Zhiming XU, Suoqi ZHAO, Chunming XU, Keng H. CHUNG
  • Patent number: 11446633
    Abstract: A method of treating or remediating contaminated material, such as water or soil, comprises contacting such material with asphaltenes. The asphaltenes are preferably produced as a by-product of petroleum refining and, in particular, a by-product of vacuum residua. An adsorbent material comprising such asphaltenes is also provided.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: September 20, 2022
    Assignee: Well Resources Inc.
    Inventors: Warren Chung, Xuebing Li, Pei Yu, Mengtao Cui, Quan Shi, Zhiming Xu, Suoqi Zhao, Chunming Xu, Keng H. Chung
  • Patent number: 10954468
    Abstract: A method for the regeneration of used lubricating oils to produce lubricant base oils includes the steps of (a) removing resin and impurities by distillation, (b) catalytic oxidation treatment and (c) adsorption process. The method can efficiently reduce the color, metal ions, and sulfur content under mild reaction conditions at low cost and obtain high yield of regenerated oil above 85 wt. %.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: March 23, 2021
    Assignee: Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences
    Inventors: Keng H. Chung, Xuebing Li, Song Chen, Guangci Li, Bin Chen
  • Publication number: 20200269212
    Abstract: A method of treating or remediating contaminated material, such as water or soil, comprises contacting such material with asphaltenes. The asphaltenes are preferably produced as a by-product of petroleum refining and, in particular, a by-product of vacuum residua. An adsorbent material comprising such asphaltenes is also provided.
    Type: Application
    Filed: March 6, 2019
    Publication date: August 27, 2020
    Applicant: Well Resources Inc.
    Inventors: Warren CHUNG, Xuebing LI, Pei YU, Mengtao CUI, Quan SHI, Zhiming XU, Suoqi ZHAO, Chunming XU, Keng H. CHUNG
  • Publication number: 20190119605
    Abstract: A method for the regeneration of used lubricating oils to produce lubricant base oils includes the steps of (a) removing resin and impurities by distillation, (b) catalytic oxidation treatment and (c) adsorption process. The method can efficiently reduce the color, metal ions, and sulfur content under mild reaction conditions at low cost and obtain high yield of regenerated oil above 85 wt. %.
    Type: Application
    Filed: October 16, 2018
    Publication date: April 25, 2019
    Inventors: Keng H. Chung, Xuebing Li, Song Chen, Guangci Li, Bin Chen
  • Patent number: 9925532
    Abstract: There is provided a process of treating a heavy hydrocarbon-comprising material, comprising: contacting a feed material with at least a catalyst material within a contacting zone to effect generation of a total product such that a contacting zone material is disposed within the contacting zone and consists of the catalyst material and a feed/product-comprising mixture comprising the feed material and the total product, wherein the feed/product-comprising mixture includes a Conradson carbon residue content of at least 12 weight percent, based on the total weight of the feed/product-comprising mixture, and also includes an asphaltene content of less than two (2) weight percent, based on the total weight of the feed/product-comprising mixture, and wherein the feed material includes deasphalted heavy hydrocarbon-comprising material.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: March 27, 2018
    Assignee: WELL RESOURCES INC.
    Inventors: Suoqi Zhao, Qiang Wei, Chunming Xu, Zhiming Xu, Xuewen Sun, Keng H. Chung
  • Publication number: 20160348012
    Abstract: There is provided a process of treating a heavy hydrocarbon-comprising material, comprising: contacting a feed material with at least a catalyst material within a contacting zone to effect generation of a total product such that a contacting zone material is disposed within the contacting zone and consists of the catalyst material and a feed/product-comprising mixture comprising the feed material and the total product, wherein the feed/product-comprising mixture includes a Conradson carbon residue content of at least 12 weight percent, based on the total weight of the feed/product-comprising mixture, and also includes an asphaltene content of less than two (2) weight percent, based on the total weight of the feed/product-comprising mixture, and wherein the feed material includes deasphalted heavy hydrocarbon-comprising material.
    Type: Application
    Filed: February 26, 2016
    Publication date: December 1, 2016
    Inventors: SUOQI ZHAO, QIANG WEI, CHUNMING XU, ZHIMING XU, XUEWEN SUN, KENG H. CHUNG
  • Patent number: 9290706
    Abstract: The invention provides an integrated process for processing heavy oil, wherein the integrated process at least comprises: solvent deasphalting is carried out for heavy oil material, and de-oiled asphalt phase is mixed with dispersing agent and then entered a thermal cracking reactor to undergo thermal cracking reactions. Upgraded oil can be obtained through the mixture of the de-asphalted oil and thermal cracking oil separated from thermal cracking reaction products. The solvent and heavy gas oil, which are separated from the thermal cracking reaction products, are respectively recycled back to the solvent deasphalting process as solvent and as mixed feed to remove asphaltene. The integrated process of the present invention solves the problems that solvent is difficult to be separated from asphalt with high softening point in solvent deasphalting process and hard asphalt is difficult to be transported.
    Type: Grant
    Filed: March 27, 2013
    Date of Patent: March 22, 2016
    Assignee: CHINA UNIVERSITY OF PETROLEUM-BEIJING
    Inventors: Suoqi Zhao, Xuewen Sun, Zhiming Xu, Chunming Xu, Keng H. Chung
  • Patent number: 7597794
    Abstract: The present invention is a separation method and system in which granulation of coupled post-extraction asphalt residue is used to achieve deep separation of heavy oil. A dispersion solvent is introduced into the asphalt phase after separation by solvent extraction and the asphalt phase undergoes rapid phase change in a gas-solid separator and is dispersed into solid particles while the solvent vaporizes, resulting in low temperature separation of asphalt and solvent with adjustable size of the asphalt particles. The separation method of this invention also includes a three-stage separation of heavy oil feedstock, in which the deasphalted oil phase separated from heavy oil is treated with supercritical solvent and results in the further separation of the resin portion of the deasphalted oil, maximizing the yield and quality of the deasphalted oil.
    Type: Grant
    Filed: November 1, 2005
    Date of Patent: October 6, 2009
    Inventors: Suoqi Zhao, Chunming Xu, Ren′an Wang, Zhiming Xu, Xuewen Sun, Keng H. Chung
  • Patent number: 6746596
    Abstract: The process has to do with a circuit involving a fluidized bed coker reactor working in tandem with a fluidized bed coke burner. The burner is operated at a reduced temperature in the range 550° C.-630° C. Simultaneously, the coke circulation rate is increased to ensure the heat requirement of the reactor is met. It is found that sulphur emissions from the burner are significantly reduced.
    Type: Grant
    Filed: June 14, 2001
    Date of Patent: June 8, 2004
    Assignees: AEC Oil Sands, L.P., AEC Oil Sands Limited Partnership, Athabasca Oil Sands Investment Inc., Nexen Inc., Canadian Oil Sands Investments Inc., Gulf Canada Resources Limited, Imperial Oil Resources, Mocal Energy Limited, Murphy Oil Company Ltd., Petro-Canada
    Inventors: Keng H. Chung, Edward Furimsky
  • Publication number: 20030000868
    Abstract: The process has to do with a circuit involving a fluidized bed coker reactor working in tandem with a fluidized bed coke burner. The burner is operated at a reduced temperature in the range 550° C.-630° C. Simultaneously, the coke circulation rate is increased to ensure the heat requirement of the reactor is met. It is found that sulphur emissions from the burner are significantly reduced.
    Type: Application
    Filed: June 14, 2001
    Publication date: January 2, 2003
    Applicant: AEC OIL SANDS, L.P.
    Inventors: Keng H, Chung, Edward Furimsky
  • Patent number: 5376276
    Abstract: Aerated bitumen froth containing bitumen, water, air and solids is the product of the hot water extraction process for recovering bitumen from oil sand. Measurements related to the water content of the froth can be obtained by measuring its resonant frequency in a calibrated output, open-ended microwave cavity. By also measuring the bulk density of the froth and assuming a constant relationship for the solids content, one can compute from the assembled data the output quality of the froth. The measurements can be taken repetitively at the vessel as the froth is produced and used to almost instantly provide froth quality information.
    Type: Grant
    Filed: April 1, 1993
    Date of Patent: December 27, 1994
    Assignees: Alberta Energy Company, Ltd., Canadian Occidental Petroleum Ltd., Esso Resources Canada Limited, Gulf Canada Resources Limited, Her Majesty the Queen in right of the Province of Alberta as represented by the Minister of Energy and Natural Resources, Hbog-Oil Sands Limited Partnership, Pancanadian Petroleum Limited, Petro-Canada Inc., Mocal Energy Limited, Murphy Oil Company Ltd.
    Inventors: Keng H. Chung, Gordon R. Thompson, Wayne B. Jansen, Ethel A. Nakano, Samson Y. Ng