Patents by Inventor Quo-Chen Yeh
Quo-Chen Yeh 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: 20250084018Abstract: A first stream containing 1,3-butadiene, C4 acetylenes, and optionally C3 hydrocarbons, is mixed with a portion of the liquid recycle stream from a C4 acetylene hydrogenation reactor containing hydrogenated C4 acetylenes and a molecular hydrogen-containing stream, the resulting mixed stream is then fed to a C4 acetylene hydrogenation reactor to selectively hydrogenate the C4 acetylenes in the crude butadiene stream without appreciable 1,3-butadiene conversion.Type: ApplicationFiled: November 25, 2024Publication date: March 13, 2025Applicant: KELLOGG BROWN & ROOT LLCInventors: David Sellinger, Robert Choi, Quo-Chen Yeh, Alok Srivastava, Kristine E. Hamilton, Michael A. Radzicki
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Patent number: 12180154Abstract: A first stream containing 1,3-butadiene, C4 acetylenes, and optionally C3 hydrocarbons, is mixed with a portion of the liquid recycle stream from a C4 acetylene hydrogenation reactor containing hydrogenated C4 acetylenes and a molecular hydrogen-containing stream, the resulting mixed stream is then fed to a C4 acetylene hydrogenation reactor to selectively hydrogenate the C4 acetylenes in the crude butadiene stream without appreciable 1,3-butadiene conversion.Type: GrantFiled: April 26, 2022Date of Patent: December 31, 2024Assignee: Kellogg Brown & Root LLCInventors: David Sellinger, Robert Choi, Quo-Chen Yeh, Alok Srivastava, Kristine E. Hamilton, Michael A. Radzicki
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Patent number: 12180429Abstract: A system and process for generating, on-site, a sustained C6+C7 aromatic rich solvent stream for tar solvation within the olefin plant employing a two-fuel oil tower system receiving a hydrocarbon feed from a quench water separator drum, where the two-fuel oil tower system is configured to make a sufficient solvent stream containing C6+C7 aromatic rich hydrocarbons that is recycled and mixed with quench water going to the quench water separator drum to assist in removing tar molecules out of the quench water.Type: GrantFiled: January 10, 2024Date of Patent: December 31, 2024Assignee: KELLOGG BROWN & ROOT LLCInventors: David Sellinger, Rian Reyneke, Quo-Chen Yeh, Alok Srivastava, Kristine E. Hamilton, Michael A. Radzicki, Larry J. Shulik, James R Arnold
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Patent number: 12168638Abstract: A system and a process for dimerizing cyclopentadiene (CPD) including producing a C6+C7 rich bottoms stream and a C5 rich side draw from a debutanizer, where the C5 rich side draw and at least a portion of the C6+C7 rich bottoms stream are directed to a dimerizer where the CPD is thermally dimerized to dicyclopentadiene (DCPD). DCPD is more stable than CPD and thus safer to handle.Type: GrantFiled: December 19, 2023Date of Patent: December 17, 2024Assignee: KELLOGG BROWN & ROOT LLCInventors: David Sellinger, Robert Choi, Quo-Chen Yeh, Alok Srivastava, Kristine E. Hamilton, Michael A. Radzicki
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Publication number: 20240318089Abstract: A system for hydrogenation C3 and C4 acetylenes contained within a hydrocarbon stream generated in a stream cracker unit where a debutanizer is placed upstream of a depropanizer for more economical processing of the hydrocarbon stream to produce lighter hydrocarbons, where the system requires only one stripper tower downstream of hydrogenation to remove residual hydrogen.Type: ApplicationFiled: June 6, 2024Publication date: September 26, 2024Applicant: KELLOGG BROWN & ROOT LLCInventors: David Sellinger, Robert Choi, Quo-Chen Yeh, Alok Srivastava, Kristine E. Hamilton, Michael A. Radzicki
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Patent number: 12037553Abstract: A system for hydrogenation C3 and C4 acetylenes contained within a hydrocarbon stream generated in a stream cracker unit where a debutanizer is placed upstream of a depropanizer for more economical processing of the hydrocarbon stream to produce lighter hydrocarbons, where the system requires only one stripper tower downstream of hydrogenation to remove residual hydrogen.Type: GrantFiled: April 26, 2022Date of Patent: July 16, 2024Assignee: Kellogg Brown & Root LLCInventors: David Sellinger, Robert Choi, Quo-Chen Yeh, Alok Srivastava, Kristine E. Hamilton, Michael A. Radzicki
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Publication number: 20240141240Abstract: A system and process for generating, on-site, a sustained C6+C7 aromatic rich solvent stream for tar solvation within the olefin plant employing a two-fuel oil tower system receiving a hydrocarbon feed from a quench water separator drum, where the two-fuel oil tower system is configured to make a sufficient solvent stream containing C6+C7 aromatic rich hydrocarbons that is recycled and mixed with quench water going to the quench water separator drum to assist in removing tar molecules out of the quench water.Type: ApplicationFiled: January 10, 2024Publication date: May 2, 2024Applicant: KELLOGG BROWN & ROOT LLCInventors: David Sellinger, Rian Reyneke, Quo-Chen Yeh, Alok Srivastava, Kristine E. Hamilton, Michael A. Radzicki, Larry J. Shulik, James R. Arnold
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Publication number: 20240116837Abstract: A system and a process for dimerizing cyclopentadiene (CPD) including producing a C6+C7 rich bottoms stream and a C5 rich side draw from a debutanizer, where the C5 rich side draw and at least a portion of the C6+C7 rich bottoms stream are directed to a dimerizer where the CPD is thermally dimerized to dicyclopentadiene (DCPD). DCPD is more stable than CPD and thus safer to handle.Type: ApplicationFiled: December 19, 2023Publication date: April 11, 2024Applicant: KELLOGG BROWN & ROOT LLCInventors: David Sellinger, Robert Choi, Quo-Chen Yeh, Alok Srivastava, Kristine E. Hamilton, Michael A. Radzicki
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Patent number: 11905472Abstract: A system and process for generating, on-site, a sustained C6+C7 aromatic rich solvent stream for tar solvation within the olefin plant employing a two-fuel oil tower system receiving a hydrocarbon feed from a quench water separator drum, where the two-fuel oil tower system is configured to make a sufficient solvent stream containing C6+C7 aromatic rich hydrocarbons that is recycled and mixed with quench water going to the quench water separator drum to assist in removing tar molecules out of the quench water.Type: GrantFiled: April 26, 2022Date of Patent: February 20, 2024Assignee: KELLOGG BROWN & ROOT LLCInventors: David Sellinger, Rian Reyneke, Alok Srivastava, Kristine E. Hamilton, Michael A. Radzicki, Larry J. Shulik, James R. Arnold, Quo-Chen Yeh
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Patent number: 11884608Abstract: A system and a process for dimerizing cyclopentadiene (CPD) including producing a C6+C7 rich bottoms stream and a C5 rich side draw from a debutanizer, where the C5 rich side draw and at least a portion of the C6+C7 rich bottoms stream are directed to a dimerizer where the CPD is thermally dimerized to dicyclopentadiene (DCPD). DCPD is more stable than CPD and thus safer to handle.Type: GrantFiled: April 26, 2022Date of Patent: January 30, 2024Assignee: KELLOGG BROWN & ROOT LLCInventors: David Sellinger, Robert Choi, Quo-Chen Yeh, Alok Srivastava, Kristine E. Hamilton, Michael A. Radzicki
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Publication number: 20220340501Abstract: A system and a process for dimerizing cyclopentadiene (CPD) including producing a C6+C7 rich bottoms stream and a C5 rich side draw from a debutanizer, where the C5 rich side draw and at least a portion of the C6+C7 rich bottoms stream are directed to a dimerizer where the CPD is thermally dimerized to dicyclopentadiene (DCPD). DCPD is more stable than CPD and thus safer to handle.Type: ApplicationFiled: April 26, 2022Publication date: October 27, 2022Applicant: KELLOGG BROWN & ROOT LLCInventors: David Sellinger, Robert Choi, Quo-Chen Yeh, Alok Srivastava, Kristine E. Hamilton, Michael A. Radzicki
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Publication number: 20220340504Abstract: A first stream containing 1,3-butadiene, C4 acetylenes, and optionally C3 hydrocarbons, is mixed with a portion of the liquid recycle stream from a C4 acetylene hydrogenation reactor containing hydrogenated C4 acetylenes and a molecular hydrogen-containing stream, the resulting mixed stream is then fed to a C4 acetylene hydrogenation reactor to selectively hydrogenate the C4 acetylenes in the crude butadiene stream without appreciable 1,3-butadiene conversion.Type: ApplicationFiled: April 26, 2022Publication date: October 27, 2022Applicant: KELLOGG BROWN & ROOT LLCInventors: David Sellinger, Robert Choi, Quo-Chen Yeh, Alok Srivastava, Kristine E. Hamilton, Michael A. Radzicki
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Publication number: 20220340826Abstract: A system for hydrogenation C3 and C4 acetylenes contained within a hydrocarbon stream generated in a stream cracker unit where a debutanizer is placed upstream of a depropanizer for more economical processing of the hydrocarbon stream to produce lighter hydrocarbons, where the system requires only one stripper tower downstream of hydrogenation to remove residual hydrogen.Type: ApplicationFiled: April 26, 2022Publication date: October 27, 2022Applicant: KELLOGG BROWN & ROOT LLCInventors: David Sellinger, Robert Choi, Quo-Chen Yeh, Alok Srivastava, Kristine E. Hamilton, Michael A. Radzicki
