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).
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Publication number: 20220355269Abstract: 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: ApplicationFiled: July 21, 2022Publication date: November 10, 2022Applicant: Well Resources Inc.Inventors: Warren CHUNG, Xuebing LI, Pei YU, Mengtao CUI, Quan SHI, Zhiming XU, Suoqi ZHAO, Chunming XU, Keng H. CHUNG
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Patent number: 11446633Abstract: 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: GrantFiled: March 6, 2019Date of Patent: September 20, 2022Assignee: Well Resources Inc.Inventors: Warren Chung, Xuebing Li, Pei Yu, Mengtao Cui, Quan Shi, Zhiming Xu, Suoqi Zhao, Chunming Xu, Keng H. Chung
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Patent number: 10954468Abstract: 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: GrantFiled: October 16, 2018Date of Patent: March 23, 2021Assignee: Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of SciencesInventors: Keng H. Chung, Xuebing Li, Song Chen, Guangci Li, Bin Chen
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Publication number: 20200269212Abstract: 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: ApplicationFiled: March 6, 2019Publication date: August 27, 2020Applicant: Well Resources Inc.Inventors: Warren CHUNG, Xuebing LI, Pei YU, Mengtao CUI, Quan SHI, Zhiming XU, Suoqi ZHAO, Chunming XU, Keng H. CHUNG
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Publication number: 20190119605Abstract: 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: ApplicationFiled: October 16, 2018Publication date: April 25, 2019Inventors: Keng H. Chung, Xuebing Li, Song Chen, Guangci Li, Bin Chen
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Patent number: 9925532Abstract: 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: GrantFiled: February 26, 2016Date of Patent: March 27, 2018Assignee: WELL RESOURCES INC.Inventors: Suoqi Zhao, Qiang Wei, Chunming Xu, Zhiming Xu, Xuewen Sun, Keng H. Chung
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Publication number: 20160348012Abstract: 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: ApplicationFiled: February 26, 2016Publication date: December 1, 2016Inventors: SUOQI ZHAO, QIANG WEI, CHUNMING XU, ZHIMING XU, XUEWEN SUN, KENG H. CHUNG
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Patent number: 9290706Abstract: 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: GrantFiled: March 27, 2013Date of Patent: March 22, 2016Assignee: CHINA UNIVERSITY OF PETROLEUM-BEIJINGInventors: Suoqi Zhao, Xuewen Sun, Zhiming Xu, Chunming Xu, Keng H. Chung
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Patent number: 7597794Abstract: 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: GrantFiled: November 1, 2005Date of Patent: October 6, 2009Inventors: Suoqi Zhao, Chunming Xu, Ren′an Wang, Zhiming Xu, Xuewen Sun, Keng H. Chung
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Patent number: 6746596Abstract: 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: GrantFiled: June 14, 2001Date of Patent: June 8, 2004Assignees: 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-CanadaInventors: Keng H. Chung, Edward Furimsky
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Publication number: 20030000868Abstract: 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: ApplicationFiled: June 14, 2001Publication date: January 2, 2003Applicant: AEC OIL SANDS, L.P.Inventors: Keng H, Chung, Edward Furimsky
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Patent number: 5376276Abstract: 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: GrantFiled: April 1, 1993Date of Patent: December 27, 1994Assignees: 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