Patents by Inventor Yisong Yu
Yisong Yu 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: 11345869Abstract: A hydrate formation promoter and the use thereof in methane storage. The hydrate formation promoter is a mixed aqueous solution including cyclopentane, sodium dodecyl sulfate and water, wherein a volume fraction of the cyclopentane is 5% to 23.4% and a mass fraction of the sodium dodecyl sulfate is 0.01% to 0.08%. The hydrate formation promoter can realize effective and rapid formation of methane hydrate at approximate room temperature (25° C.), and can remain stable at higher temperatures.Type: GrantFiled: March 26, 2019Date of Patent: May 31, 2022Assignee: GUANGZHOU INSTITUTE OF ENERGY CONVERSION, CHINESE ACADEMY OF SCIENCESInventors: Xiaosen Li, Yisong Yu, Zhaoyang Chen
-
Publication number: 20200339900Abstract: A hydrate formation promoter and the use thereof in methane storage. The hydrate formation promoter is a mixed aqueous solution including cyclopentane, sodium dodecyl sulfate and water, wherein a volume fraction of the cyclopentane is 5% to 23.4% and a mass fraction of the sodium dodecyl sulfate is 0.01% to 0.08%. The hydrate formation promoter can realize effective and rapid formation of methane hydrate at approximate room temperature (25° C.), and can remain stable at higher temperatures.Type: ApplicationFiled: March 26, 2019Publication date: October 29, 2020Applicant: GUANGZHOU INSTITUTE OF ENERGY CONVERSION, CHINESE ACADEMY OF SCIENCESInventors: Xiaosen LI, Yisong YU, Zhaoyang CHEN
-
Patent number: 10252188Abstract: A gas-liquid separation apparatus suitable for gas hydrate slurry, comprising an upper chamber, a middle chamber, and a lower chamber; a gas-phase outlet and a pressurizing unit are disposed in a top of the upper chamber, the middle chamber is provided with a material inlet and a wire mesh demister, and the lower chamber is provided with a liquid-phase outlet and a plurality of deflector baffles. The arrangement of divided chambers can reduce the degree of hydrate dissociation in the slurry (i.e., loss of the sought gas) and improve the separation efficiency. With the pressurizing unit, it facilitates the setting of the required pressure for gas-liquid separation without introducing a pressure maintaining valve in the subsequent separation process, prevents the hydrate in the slurry from dissociating in the apparatus, and allows rapid separation between the slurry and the gas.Type: GrantFiled: April 12, 2017Date of Patent: April 9, 2019Assignee: GUANGZHOU INSTITUTE OF ENERGY CONVERSION, CHINESE ACADEMY OF SCIENCESInventors: Xiaosen Li, Yisong Yu, Chungang Xu, Zhaoyang Chen, Ningsheng Huang, Gang Li
-
Patent number: 10183865Abstract: An apparatus and a combined process for carbon dioxide gas separation, combining the hydrate-based process with the chemical absorption process, which reduces secondary pollution and allows the efficient continuous separation of carbon dioxide gas without increasing the pressure and thereby the operating cost is reduced significantly. The apparatus and combined process can be applied in the separation of carbon dioxide in IGCC synthetic gas, natural gas and biogas, and address the issues of the existing processes such as high energy consumption, low throughput, and secondary pollution.Type: GrantFiled: April 14, 2017Date of Patent: January 22, 2019Assignee: GUANGZHOU INSTITUTE OF ENERGY CONVERSION, CHINESE ACADEMY OF SCIENCESInventors: Xiaosen Li, Chungang Xu, Yisong Yu, Zhaoyang Chen, Ningsheng Huang, Gang Li
-
Publication number: 20180169545Abstract: A gas-liquid separation apparatus suitable for gas hydrate slurry, comprising an upper chamber, a middle chamber, and a lower chamber; a gas-phase outlet and a pressurizing unit are disposed in a top of the upper chamber, the middle chamber is provided with a material inlet and a wire mesh demister, and the lower chamber is provided with a liquid-phase outlet and a plurality of deflector baffles. The arrangement of divided chambers can reduce the degree of hydrate dissociation in the slurry (i.e., loss of the sought gas) and improve the separation efficiency. With the pressurizing unit, it facilitates the setting of the required pressure for gas-liquid separation without introducing a pressure maintaining valve in the subsequent separation process, prevents the hydrate in the slurry from dissociating in the apparatus, and allows rapid separation between the slurry and the gas.Type: ApplicationFiled: April 12, 2017Publication date: June 21, 2018Applicant: GUANGZHOU INSTITUTE OF ENERGY CONVERSION, CHINESE ACADEMY OF SCIENCESInventors: Xiaosen Li, Yisong Yu, Chungang Xu, Zhaoyang Chen, Ningsheng Huang, Gang Li
-
Publication number: 20180148331Abstract: An apparatus and a combined process for carbon dioxide gas separation, combining the hydrate-based process with the chemical absorption process, which reduces secondary pollution and allows the efficient continuous separation of carbon dioxide gas without increasing the pressure and thereby the operating cost is reduced significantly. The apparatus and combined process can be applied in the separation of carbon dioxide in IGCC synthetic gas, natural gas and biogas, and address the issues of the existing processes such as high energy consumption, low throughput, and secondary pollution.Type: ApplicationFiled: April 14, 2017Publication date: May 31, 2018Applicant: GUANGZHOU INSTITUTE OF ENERGY CONVERSION, CHINESE ACADEMY OF SCIENCESInventors: Xiaosen Li, Chungang Xu, Yisong Yu, Zhaoyang Chen, Ningsheng Huang, Gang Li
-
Publication number: 20090286183Abstract: A true processless lithographic printing precursor comprising a substrate, a layer of imaginable element on the substrate. The imaginable element comprising: (1) a substance capable of converting radiation into heat; (2) hydrophobic polymer particles and (3) hydrophilic polymer particles. The imaginable element can not be removed by water or fountain used for press when coated and dried, and becomes hydrophobic under the action of heat. The converter substance may be selected to have an absorption spectrum that is optimized to absorb at the wavelength of imaging radiation. The hydrophilic polymer particles are made by polymerization of at least one hydrophilic monomer and the hydrophobic polymer particles are made by polymerization of at least one hydrophobic monomer. Hydrophilic particles comprise major hydrophilic polymer and reject the ink or oil, and hydrophobic particles comprise major hydrophobic polymer and accept the ink or oil.Type: ApplicationFiled: August 15, 2008Publication date: November 19, 2009Inventor: YISONG YU
-
Publication number: 20090246689Abstract: A radiation-sensitive medium comprises hydrophilic polymer particles, the particles comprising a thermally softenable hydrophobic polymer, a hydrophilic polymer and a bonding compound capable of chemically bonding to the hydrophobic polymer and to the hydrophilic polymer. The radiation-sensitive medium further may comprise a substance capable of converting radiation into heat. The radiation-sensitive medium is aqueous-ineluable when coated and dried, and becomes hydrophobic under the action of heat. The polymer particles are made by polymerization of at least one hydrophobic monomer and at least one bonding compound in the presence of the hydrophilic polymer. The radiation-sensitive medium may be provided as a coatable composition to be applied to substrates to form a processless radiation-imageable lithographic printing precursor, which may further be provided with an aqueous eluable hydrophilic overcoat.Type: ApplicationFiled: June 11, 2009Publication date: October 1, 2009Inventors: Yisong Yu, Brian J. Collister, Jonathan W. Goodin, Graham Darling, Jacqueline L. Ricafrente, Susan A. Wilklnson
-
Patent number: 7579133Abstract: A radiation-sensitive medium comprises hydrophilic polymer particles, the particles comprising a thermally softenable hydrophobic polymer, a hydrophilic polymer and a bonding compound capable of chemically bonding to the hydrophobic polymer and to the hydrophilic polymer. The radiation-sensitive medium further may comprise a substance capable of converting radiation into heat. The radiation-sensitive medium is aqueous-ineluable when coated and dried, and becomes hydrophobic under the action of heat. The polymer particles are made by polymerization of at least one hydrophobic monomer and at least one bonding compound in the presence of the hydrophilic polymer. The radiation-sensitive medium may be provided as a coatable composition to be applied to substrates to form a processless radiation-imageable lithographic printing precursor, which may further be provided with an aqueous eluable hydrophilic overcoat.Type: GrantFiled: July 13, 2005Date of Patent: August 25, 2009Assignee: Kodak Graphic Communications Canada CompanyInventors: Yisong Yu, Brian J. Collister, Jonathan W. Goodin, Graham Darling, Jacqueline L. Ricafrente, Susan A. Wilkinson
-
Publication number: 20090056580Abstract: A method to obtain a lithographic printing master comprising: a) an imaginable element is formed from a radiation sensitive coating on a base, said coating comprising: (1) hydrophilic polymer particles; (2) hydrophobic polymer particles; and (3) a converter substance capable of converting radiation into heat; b) the imaginable element forms a hydrophilic layer on a base but it can not be removed by water or fountain used for press after coated and dried; c) image-wise or information-wise exposing to radiation, the hydrophilic imaginable element layer becomes hydrophobic for ink under the action of thermal laser and unexposed area remains hydrophilic for water. The converter substance may be selected to have an absorption spectrum that is optimized to absorb at the wavelength of imaging radiation. The hydrophilic polymer particles are made by polymerization of at least one hydrophilic monomer and the hydrophobic polymer particles are made by polymerization of at least one hydrophobic monomer.Type: ApplicationFiled: August 15, 2008Publication date: March 5, 2009Inventor: Yisong YU
-
Publication number: 20090056581Abstract: A method to obtain a lithographic printing master comprising: a) an imaginable element is formed from a radiation sensitive coating on a base, said coating comprising: (1) anionic polymer particles; (2) cationic polymer particles; and (3) a converter substance capable of converting radiation into heat; b) the imaginable element forms a hydrophilic layer on a base but it can not be removed by water or fountain used for press after coated and dried; c) image-wise or information-wise exposing to radiation, the hydrophilic imaginable element layer becomes hydrophobic for ink under the action of thermal laser and unexposed area remains hydrophilic for water. The converter substance may be selected to have an absorption spectrum that is optimized to absorb at the wavelength of imaging radiation. The anionic polymer particles have an anionic surface and cationic polymer particles have a cationic surface.Type: ApplicationFiled: August 15, 2008Publication date: March 5, 2009Inventor: YISONG YU
-
Publication number: 20090061357Abstract: A processless lithographic printing precursor comprising a substrate, a layer of imaginable element on the substrate. The imaginable element comprising: (1) a substance capable of converting radiation into heat; (2) anionic polymer particles and (3) cationic polymer particles. The imaginable element can not be removed by water or fountain used for press when coated and dried, and becomes hydrophobic under the action of heat. The converter substance may be selected to have an absorption spectrum that is optimized to absorb at the wavelength of imaging radiation. The anionic polymer particles have an anionic surface and cationic polymer particles have a cationic surface. The processless lithographic printing precursor so created may be imaged using absorbed radiation that is imagewise converted to heat, resulting in areas of hydrophobic property, while unimaged areas retain their hydrophilic property.Type: ApplicationFiled: August 15, 2008Publication date: March 5, 2009Inventor: Yisong YU
-
Publication number: 20080286694Abstract: A positive-working photosensitive composition for use in making an imageable element comprises one or more vinyl copolymers wherein said vinyl copolymer are homopolymer or copolymer containing monomers comprising at least two functional groups such as HOOC—C?C—CONH—R, and may further comprise a converter substance for converting radiation into heat. The converter substance may be selected to have an absorption spectrum that is optimized to absorb at the wavelength of imaging radiation. The composition may be coated onto a suitable substrate to create a lithographic printing precursor. The precursor may be imagewise irradiated with radiation and optionally developed with a developer liquid to produce a lithographic printing master. A positive-working lithographic printing precursor may be prepared using the composition.Type: ApplicationFiled: March 24, 2008Publication date: November 20, 2008Inventor: Yisong Yu
-
Publication number: 20080274424Abstract: A positive-working photosensitive composition for use in making an imageable element comprises one or more vinyl copolymers wherein said vinyl copolymer are homopolymer or copolymer containing monomers comprising at least two functional groups such as HOOC—C?C—CONH—R, and may further comprise a converter substance for converting radiation into heat. The converter substance may be selected to have an absorption spectrum that is optimized to absorb at the wavelength of imaging radiation. The composition may be coated onto a suitable substrate to create a lithographic printing precursor. The precursor may be imagewise irradiated with radiation and optionally developed with a developer liquid to produce a lithographic printing master. A positive-working lithographic printing precursor may be prepared using the composition.Type: ApplicationFiled: May 5, 2007Publication date: November 6, 2008Inventor: YISONG YU
-
Publication number: 20080229957Abstract: A method to obtain a lithographic printing master comprising the steps of: a) image-wise or information-wise exposing to radiation a thermal negative-working lithographic printing precursor comprising: i) a hydrophilic lithographic base; and ii) a radiation sensitive coating on a surface of said hydrophilic lithographic base, said coating comprising: (1) hydrophilic polymer particles; (2) hydrophobic polymer particles; and (3) a converter substance capable of converting radiation into heat; and b) developing said exposed thermal negative-working lithographic printing precursor with an aqueous medium in order to remove the unexposed areas of said coating. The hydrophilic polymer particles are made by polymerization of at least one hydrophilic monomer and the hydrophobic polymer particles are made by polymerization of at least one hydrophobic monomer.Type: ApplicationFiled: March 14, 2008Publication date: September 25, 2008Inventor: Yisong Yu
-
Publication number: 20080229955Abstract: A negative-working thermal imaginable element for use in making a lithographic printing plate precursor comprises hydrophilic polymer particles and hydrophobic polymer particles, and may further comprise a converter substance for converting radiation into heat. The converter substance may be selected to have an absorption spectrum that is optimized to absorb at the wavelength of imaging radiation. The negative-working thermal imaginable element may be applied onto a suitable substrate to create a lithographic printing precursor. The imaginable element can be imaged and developed on-press and it can also be sprayed onto a hydrophilic surface to create a printing surface that may be processed wholly on-press. The hydrophilic polymer particles are made by polymerization of at least one hydrophilic monomer and the hydrophobic polymer particles are made by polymerization of at least one hydrophobic monomer.Type: ApplicationFiled: March 14, 2008Publication date: September 25, 2008Inventor: Yisong Yu
-
Publication number: 20080070163Abstract: A radiation-sensitive medium comprises hydrophilic polymer particles, the particles comprising a thermally softenable hydrophobic polymer, a hydrophilic polymer and a bonding compound capable of chemically bonding to the hydrophobic polymer and to the hydrophilic polymer. The radiation-sensitive medium further may comprise a substance capable of converting radiation into heat. The radiation-sensitive medium is aqueous-ineluable when coated and dried, and becomes hydrophobic under the action of heat. The polymer particles are made by polymerization of at least one hydrophobic monomer and at least one bonding compound in the presence of the hydrophilic polymer. The radiation-sensitive medium may be provided as a coatable composition to be applied to substrates to form a processless radiation-imageable lithographic printing precursor, which may further be provided with an aqueous eluable hydrophilic overcoat.Type: ApplicationFiled: September 13, 2007Publication date: March 20, 2008Inventors: Yisong Yu, Brian Collister, Jonathan Goodin, Graham Darling, Jacqueline Ricafrente, Susan Wilkinson
-
Patent number: 7323288Abstract: A radiation-sensitive medium comprises hydrophilic polymer particles, the particles comprising a thermally softenable hydrophobic polymer, a hydrophilic polymer and a bonding compound capable of chemically bonding to the hydrophobic polymer and to the hydrophilic polymer. Th radiation-sensitive medium further may comprise a substance capable of converting radiation into heat. The radiation-sensitive medium is aqueous-ineluable when coated and dried, and becomes hydrophobic under the action of heat. The polymer particles are made by polymerization of at least one hydrophobic monomer and at least one bonding compound in the presence of the hydrophilic polymer. The radiation-sensitive medium may be provided as a coatable composition to be applied to substrates to form a processless radiation-imageable lithographic printing precursor.Type: GrantFiled: August 25, 2003Date of Patent: January 29, 2008Assignee: Kodak Graphic Communications Canada CompanyInventors: Yisong Yu, Brian J. Collister, Jonathan W. Goodin, Graham Darling, Jacqueline L. Ricafrente
-
Publication number: 20060292486Abstract: A radiation-sensitive medium comprises hydrophilic polymer particles, the particles comprising a thermally softenable hydrophobic polymer, a hydrophilic polymer and a bonding compound capable of chemically bonding to the hydrophobic polymer and to the hydrophilic polymer. The radiation-sensitive medium further may comprise a substance capable of converting radiation into heat. The radiation-sensitive medium is aqueous-ineluable when coated and dried, and becomes hydrophobic under the action of heat. The polymer particles are made by polymerization of at least one hydrophobic monomer and at least one bonding compound in the presence of the hydrophilic polymer. The radiation-sensitive medium may be provided as a coatable composition to be applied to substrates to form a processless radiation-imageable lithographic printing precursor, which may further be provided with an aqueous eluable hydrophilic overcoat.Type: ApplicationFiled: July 13, 2005Publication date: December 28, 2006Applicant: Creo Inc.Inventors: Yisong Yu, Brian Collister, Jonathan Goodin, Graham Darling, Jacqueline Ricafrente, Susan Wilkinson
-
Publication number: 20040202962Abstract: A radiation-sensitive medium comprises hydrophilic polymer particles, the particles comprising a thermally softenable hydrophobic polymer, a hydrophilic polymer and a bonding compound capable of chemically bonding to the hydrophobic polymer and to the hydrophilic polymer. Th radiation-sensitive medium further may comprise a substance capable of converting radiation into heat. The radiation-sensitive medium is aqueous-ineluable when coated and dried, and becomes hydrophobic under the action of heat. The polymer particles are made by polymerization of at least one hydrophobic monomer and at least one bonding compound in the presence of the hydrophilic polymer. The radiation-sensitive medium may be provided as a coatable composition to be applied to substrates to form a processless radiation-imageable lithographic printing precursor.Type: ApplicationFiled: August 25, 2003Publication date: October 14, 2004Inventors: Yisong Yu, Brian J. Collister, Jonathan W. Goodin, Graham Darling, Jacqueline L. Ricafrente