Patents by Inventor Xianchun Wu

Xianchun Wu 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: 12226803
    Abstract: A device for separating and recovering flat-plate catalyst powder and a method for determining a wear ratio are provided. The device includes a powder separation unit and a powder recovery unit, a powder accumulation bin is respectively connected with a shell and a catalyst powder outlet, a cyclone outlet is configured on an inner side of a recovery shell, and a primary filter and a secondary filter are configured on an inner side wall of the recovery shell.
    Type: Grant
    Filed: June 29, 2023
    Date of Patent: February 18, 2025
    Assignees: HUANENG CHONGQING LUOHUANG POWER GENERATION CO., LTD, SUZHOU XIRE ENERGY SAVING ENVIRONMENTAL PROTECTION TECHNOLOGY CO., LTD.
    Inventors: Yingjie Bao, Jieyong Hao, Changkai Yu, Xun Wu, Xianchun Zhou, Yanxuan Liang, Rongfu Tang, Feiyun Chen, Bin Luo, Kaiyou Liao, Danping Zhang, Chao Li, Fanhai Kong, Lele Wang, Qiang Bao, Chuan He
  • Patent number: 12227710
    Abstract: Processes and systems for making recycle content hydrocarbons, including olefins, from recycled waste material. Recycle waste material may be pyrolyzed to form recycle content pyrolysis oil composition (r-pyoil), at least a portion of which may then be cracked to form a recycle content olefin composition (r-olefin). The r-olefin may then be further separated into product streams in a separation zone downstream of the cracker furnace. In some cases, presence of recycle content hydrocarbons may facilitate more efficient operation of one or more distillation columns in the separation zone, including the demethanizer.
    Type: Grant
    Filed: October 29, 2020
    Date of Patent: February 18, 2025
    Assignee: Eastman Chemical Company
    Inventors: Michael Gary Polasek, Daryl Bitting, David Eugene Slivensky, Xianchun Wu
  • Patent number: 12215283
    Abstract: Recycle content pyoil is cracked in a cracker furnace to make olefins and the coil outlet temperature of the r-pyoil fed coils can be lowered by adding r-pyoil to the cracker feedstock, or alternatively, the coil outlet temperature of the r-pyoil fed tubes can rise if the mass flow rates of the combined cracker stream containing r-pyoil are kept the same or lowered. Further, increasing the hydrocarbon mass flow rate by addition of r-pyoil can be achieved to also increase the output of ethylene and propylene in the cracker effluent. The cracker furnace can accept ethane and/or propane feedstocks in vapor form along with a liquid and/or vapor feed of r-pyoil.
    Type: Grant
    Filed: May 22, 2020
    Date of Patent: February 4, 2025
    Assignee: Eastman Chemical Company
    Inventors: Daryl Bitting, Kenny Randolph Parker, Michael Gary Polasek, David Eugene Sllivensky, Xianchun Wu, Jerome Leonard Stavinoha, Jr.
  • Patent number: 12195674
    Abstract: Processes and facilities for producing recycled chemical products from waste plastic are described herein. The processes include treating process streams, such as a pyrolysis gas stream and/or at least a portion of a cracker furnace effluent stream, in a caustic scrubber process to remove certain components, such as carbon dioxide. The spent caustic solution from the caustic scrubber process is then recycled and reused in other caustic processes within the facility, which can include a halogen neutralization process from removing halogens from a liquification process off-gas.
    Type: Grant
    Filed: September 16, 2022
    Date of Patent: January 14, 2025
    Assignee: Eastman Chemical Company
    Inventors: Michael Gary Polasek, Daryl Bitting, Xianchun Wu, David Eugene Slivensky
  • Publication number: 20240424540
    Abstract: A heat integration process and system for a chemical recycling facility is provided that can lower the carbon footprint and global warming potential of the facility. More particularly, one or more heat transfer media may be used to recover heat energy from a waste plastic pyrolysis effluent and redistribute the recovered heat energy throughout the chemical recycling facility. Thus, the global warming potential of the chemical recycling facility may be optimized and lowered due to the heat integration process and system herein.
    Type: Application
    Filed: September 16, 2022
    Publication date: December 26, 2024
    Applicant: Eastman Chemical Company
    Inventors: Michael Gary Polasek, Daryl Bitting, Xianchun Wu, David Eugene Slivensky, Avery L. Anderson
  • Publication number: 20240425765
    Abstract: A hydrocarbon cracker stream is combined with recycle content pyrolysis oil to form a combined cracker stream and the combined cracker stream is cracked in a cracker furnace to provide an olefin-containing effluent. The r-pyoil can be fed to the cracker feed. Alternatively, the r-pyoil with a predominantly c8+ fraction can be fed to the cracker feed. The furnace can be a gas fed furnace, or split cracker furnace.
    Type: Application
    Filed: September 5, 2024
    Publication date: December 26, 2024
    Applicant: Eastman Chemical Company
    Inventors: Daryl Bitting, Kenny Randolph Parker, Michael Gary Polasek, David Eugene Slivensky, Xianchun Wu, Jerome Leonard Stavinoha, JR.
  • Patent number: 12173237
    Abstract: Processes and systems for making recycle content hydrocarbons, including olefins, from recycled waste material. Recycle waste material may be pyrolyzed to form recycle content pyrolysis oil composition (r-pyoil), at least a portion of which may then be cracked to form a recycle content olefin composition (r-olefin). In some cases, a heavy fraction from the cracker effluent may be used to form a recycle content pyrolysis gasoline composition (r-pyrolysis gasoline).
    Type: Grant
    Filed: October 29, 2020
    Date of Patent: December 24, 2024
    Assignee: Eastman Chemical Company
    Inventors: Michael Gary Polasek, Daryl Bitting, David Eugene Slivensky, Xianchun Wu
  • Publication number: 20240409820
    Abstract: Processes and facilities for recovering and purifying a pyrolysis gas formed by pyrolyzing waste plastic are provided. The purification process may comprise one or more treatment processes, including a caustic scrubber process, which may be included in a cracker facility or separate from the cracker facility. The resulting gas effluent stream from the caustic scrubber is particularly useful for recovering recycled chemical products and co-products from a downstream cryogenic separation process.
    Type: Application
    Filed: September 16, 2022
    Publication date: December 12, 2024
    Applicant: Eastman Chemical Company
    Inventors: David Eugene Slivensky, Daryl Bitting, Michael Gary Polasek, Xianchun Wu
  • Publication number: 20240400906
    Abstract: A heat integration process and system for a chemical recycling facility is provided that can lower the carbon footprint and global warming potential of the facility. More particularly, one or more heat transfer media may be used to recover heat energy from a waste plastic pyrolysis effluent and redistribute the recovered heat energy throughout the chemical recycling facility. Thus, the global warming potential of the chemical recycling facility may be optimized and lowered due to the heat integration process and system herein.
    Type: Application
    Filed: September 16, 2022
    Publication date: December 5, 2024
    Applicant: Eastman Chemical Company
    Inventors: Daryl Bitting, David Eugene Slivensky, Xianchun Wu, Avery L. Anderson
  • Publication number: 20240399289
    Abstract: Processes and facilities for recovering and purifying a pyrolysis gas formed by pyrolyzing waste plastic are provided. An absorber-stripper system may be used to treat the pyrolysis gas for use in one or more downstream chemical recycling processes, which can be used in forming a variety of recycled content products.
    Type: Application
    Filed: September 16, 2022
    Publication date: December 5, 2024
    Applicant: Eastman Chemical Company
    Inventors: David Eugene Slivensky, Daryl Bitting, Michael Gary Polasek, Xianchun Wu
  • Publication number: 20240392195
    Abstract: A process and system for recovering a recycle content carbon dioxide is provided that can lower the carbon footprint and global warming potential of a chemical recycling facility. More particularly, a pyrolysis flue gas and/or a pyrolysis gas from waste plastic pyrolysis may be treated in an absorber system to thereby form a recovered CO2 stream comprising recycle content carbon dioxide. Thus, the global warming potential of the chemical recycling facility may be optimized and lowered due to the carbon dioxide recovery process and system herein.
    Type: Application
    Filed: September 16, 2022
    Publication date: November 28, 2024
    Applicant: Eastman Chemical Company
    Inventors: Xianchun Wu, Avery L. Anderson, Daryl Bitting, Michael Gary Polasek, David Eugene Slivensky
  • Publication number: 20240390847
    Abstract: Processes and facilities for recovering and purifying a pyrolysis gas formed by pyrolyzing waste plastic are provided. One or more treatment processes may be used to treat the pyrolysis gas for use in one or more downstream chemical recycling processes. which can be used in forming a variety of recycled content products. The treatment processes may include a halogen removal system and/or a sulfur removal system.
    Type: Application
    Filed: September 16, 2022
    Publication date: November 28, 2024
    Applicant: Eastman Chemical Company
    Inventors: David Eugene Slivensky, Daryl Bitting, Michael Gary Polasek, Xianchun Wu
  • Publication number: 20240384180
    Abstract: Processes and facilities for providing recycled content hydrocarbon products (r-products) from the pyrolysis of waste plastic are provided. Processing schemes are described herein that increase energy efficiency and help reduce overall environmental impact while producing valuable final products from chemically recycled waste plastic.
    Type: Application
    Filed: September 16, 2022
    Publication date: November 21, 2024
    Applicant: Eastman Chemical Company
    Inventors: Michael Gary Polasek, Avery L. Anderson, Daryl Bitting, David Eugene Slivensky, Xianchun Wu
  • Publication number: 20240376383
    Abstract: A heat integration process and system for a chemical recycling facility is provided that can lower the carbon footprint and global warming potential of the facility. More particularly, one or more heat transfer media may be used to recover heat energy from a waste plastic pyrolysis effluent and redistribute the recovered heat energy throughout the chemical recycling facility. Furthermore, a staged condensation configuration may be utilized to produce multiple pyrolysis oil streams and to provide heat to the heat transfer media. Thus, the global warming potential of the chemical recycling facility may be optimized and lowered due to the heat integration process and system herein.
    Type: Application
    Filed: September 16, 2022
    Publication date: November 14, 2024
    Applicant: Eastman Chemical Company
    Inventors: David Eugene Slivensky, Daryl Bitting, Xianchun Wu, Avery L. Anderson
  • Publication number: 20240375321
    Abstract: Various processes and configuration are provided for a chemical recycling facility that can lower the carbon footprint and global warming potential of the facility. More particularly, we have discovered numerous ways for reducing the carbon footprint of the facility by: (i) recycling at least a portion of the residual heat energy from the pyrolysis effluent back upstream to the pyrolysis process and waste plastic liquification stage; (ii) recovering at least a portion of the carbon dioxide from at least a portion of the pyrolysis flue gas and/or the pyrolysis gas; (iii) feeding at least a portion of the pyrolysis gas at a cracker facility at a position downstream of a cracker furnace; (iv) using at least a portion of a demethanizer overhead stream as a fuel in a pyrolysis facility and/or a cracking facility; and (v) providing a chemical recycling facility that contains a pyrolysis facility co-located with a cracking facility.
    Type: Application
    Filed: September 16, 2022
    Publication date: November 14, 2024
    Applicant: Eastman Chemical Company
    Inventors: Avery L. Anderson, Daryl Bitting, Michael Gary Polasek, David Eugene Slivensky, Xianchun Wu
  • Publication number: 20240368475
    Abstract: A heat integration process and system for a chemical recycling facility is provided that can lower the carbon footprint and global warming potential of the facility. More particularly, waste plastic pyrolysis effluent may be used to provide heat energy to liquefied plastics upstream of the pyrolysis reactor by directly contacting the pyrolysis effluent and liquefied plastics. In addition, one or more heat transfer media may be used to recover heat energy from a waste plastic pyrolysis effluent and redistribute the recovered heat energy throughout the chemical recycling facility. Thus, the global warming potential of the chemical recycling facility may be optimized and lowered due to the heat integration process and system herein.
    Type: Application
    Filed: September 16, 2022
    Publication date: November 7, 2024
    Applicant: Eastman Chemical Company
    Inventors: Daryl Bitting, David Eugene Slivensky, Xianchun Wu, Avery L. Anderson
  • Publication number: 20240368474
    Abstract: Processes and facilities for providing recycled content hydrocarbon products (r-products) from recycled content pyrolysis oil (r-pyoil) and recycled content pyrolysis gas (r-pygas). Processing schemes provided herein maximize use of recycled content pyrolysis products to provide a variety of recycled content end products.
    Type: Application
    Filed: June 24, 2022
    Publication date: November 7, 2024
    Applicant: Eastman Chemical Company
    Inventors: Xianchun Wu, Daryl Bitting, Kenny Randolph Parker, Michael Gary Polasek, David Eugene Slivensky
  • Publication number: 20240368485
    Abstract: Processes and facilities for providing recycled content hydrocarbon products (r-products) from the pyrolysis of waste plastic are provided. Processing schemes are described herein that increase energy efficiency and help reduce overall environmental impact while producing valuable final products from chemically recycled waste plastic. Use of recycled content and/or high hydrogen content fuel in one or more process furnaces also reduces global warming potential of the facility by reducing carbon emissions, while also improving energy integration.
    Type: Application
    Filed: September 16, 2022
    Publication date: November 7, 2024
    Applicant: Eastman Chemical Company
    Inventors: Xianchun Wu, Daryl Bitting, David Eugene Slivensky, Michael Gary Polasek, Avery L. Anderson
  • Patent number: 12116532
    Abstract: Methods and systems are provided for the conversion of waste plastics into various useful downstream recycle-content products. More particularly, the present system and method involves integrating a pyrolysis facility with a cracker facility by introducing at least a stream of r-pyrolysis gas into the cracker facility. In the cracker facility, the r-pyrolysis gas may be separated to form one or more recycle content products, and can enhance the operation of the facility.
    Type: Grant
    Filed: February 10, 2021
    Date of Patent: October 15, 2024
    Assignee: Eastman Chemical Company
    Inventors: Daryl Bitting, David Eugene Slivensky, Xianchun Wu, Bruce Roger DeBruin, Damon Ray Billodeaux
  • Publication number: 20240338082
    Abstract: The specification discloses methods and systems for enabling users to configure one or more actuators in data communication with a user's computing device and positioned on a prop to generate and deliver feedback to a motion capture actor engaged with the prop. At least one graphical interface in the computing device is configured to enable the user to configure occurrence of at least one event during a scene, associate a time and duration of occurrence to the at least one event within an overall duration of the scene, select the prop, assign the at least one event and the associated time and duration of occurrence to at least one actuator on the prop, configure at least one parameter for the feedback, and activate the at least one actuator to generate and deliver the feedback to the actor in response to an occurrence of the at least one event.
    Type: Application
    Filed: June 17, 2024
    Publication date: October 10, 2024
    Inventors: Michael Sanders, Xianchun Wu, Sven Pohle