Patents by Inventor Deqing LIANG
Deqing LIANG 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: 11919978Abstract: A hydrate kinetic inhibitor, which is prepared by a polymerization of mercaptoethanol and N-vinylcaprolactam, is hydroxyl terminated poly(N-vinylcaprolactam) having a structure of formula (I) below, wherein n=10 to 1000. The inhibitor is a novel hydrate kinetic inhibitor, which has low effective concentration and high cloud point, and is effective when the degree of supercooling is relatively high.Type: GrantFiled: December 27, 2018Date of Patent: March 5, 2024Assignee: GUANGZHOU INSTITUTE OF ENERGY CONVERSION, CHINESE ACADEMY OF SCIENCESInventors: Deqing Liang, Li Wan
-
Publication number: 20220089796Abstract: A hydrate kinetic inhibitor, which is prepared by a polymerization of mercaptoethanol and N-vinylcaprolactam, is hydroxyl terminated poly(N-vinylcaprolactam) having a structure of formula (I) below, wherein n=10 to 1000. The inhibitor is a novel hydrate kinetic inhibitor, which has low effective concentration and high cloud point, and is effective when the degree of supercooling is relatively high.Type: ApplicationFiled: December 27, 2018Publication date: March 24, 2022Applicant: GUANGZHOU INSTITUTE OF ENERGY CONVERSION, CHINESE ACADEMY OF SCIENCESInventors: Deqing LIANG, Li WAN
-
Publication number: 20220025244Abstract: A natural gas hydrate inhibitor having a structure of formula (1) or formula (2). The inhibitor of the present invention is synthesized on the basis of N-vinylpyrrolidone by introducing a new structural group to achieve terminal modification of the polymer chain, which thereby improves the inhibitory effect. wherein R is a C1-8 hydrocarbon group.Type: ApplicationFiled: December 27, 2018Publication date: January 27, 2022Applicant: GUANGZHOU INSTITUTE OF ENERGY CONVERSION, CHINESE ACADEMY OF SCIENCESInventors: Cuiping TANG, Deqing LIANG
-
Patent number: 11054254Abstract: A real-time monitoring apparatus for seafloor deformation during hydrate exploitation, includes a main frame, a detecting device, and a sensing and wireless data transmitting device. The detecting device includes at least two detecting straight rods in different directions; the detecting straight rods are connected to the main frame through the movable sleeves; and at least two fixing supports are configured below each detecting straight rod, perpendicular to and uniformly distributed along the detecting straight rod. A movable lever is configured above each detecting straight rod, the movable lever is connected to the main frame through the lever-fixing rod, and a stretchable and compressible spring is configured at an upper end of the movable lever. The sensing and wireless data transmitting device includes at least two tension and compression force sensors in different directions, a gyroscope sensor, a wireless data transmitter, and a power source, all mounted in the main frame.Type: GrantFiled: December 15, 2017Date of Patent: July 6, 2021Assignee: GUANZHOU INSTITUTE OF ENERGY CONVERSION, CHINESE ACADEMY OF SCEINCESInventors: Dongliang Li, Qi Wu, Deqing Liang
-
Patent number: 11046904Abstract: An apparatus for growing hydrate crystals includes a high-pressure-resistant crystallization vessel, a temperature control system, a pressure control system, a data collection system, and a mobile shelf. The apparatus can realize a variety of experimental methods such as the bubble method, the droplet method and the solution growth method by changing the experimental fitting in the high-pressure-resistant crystallization vessel, and thereby-improve the versatility of the device.Type: GrantFiled: December 27, 2017Date of Patent: June 29, 2021Assignee: GUANGZHOU INSTITUTE OF ENERGY CONVERSION, CHINESE ACADEMY OF SCIENCESInventors: Xuebing Zhou, Deqing Liang, Zhen Long, Xiaodong Shen
-
Patent number: 10913813Abstract: A vinylamide block copolymer kinetic hydrate inhibitor and a preparation method thereof are disclosed. The vinylamide block copolymer kinetic hydrate inhibitor has a structural formula as shown in formula I. Through reverse atom transfer radical polymerization, under an anaerobic operating condition, with vinylcaprolactam and acrylamide as monomers, dimethylformamide as a solvent, azobisisobutyronitrile as an initiator, and a transition metal complex composed of a catalyst anhydrous copper chloride and a ligand 2,2?-bipyridine as a catalytic system, the method has achieved to catalyze a controllable free radical solution polymerization to obtain a poly(vinylcaprolactam-acrylamide) block copolymer kinetic hydrate inhibitor. The synthesized kinetic hydrate inhibitor has a controllable molecular weight, a narrow molecular weight distribution, and a controllable synthesis process, and exhibits an excellent inhibitory effect.Type: GrantFiled: May 31, 2018Date of Patent: February 9, 2021Assignee: GUANGZHOU INSTITUTE OF ENERGY CONVERSION, CHINESE ACADEMY OF SCIENCESInventors: Zhen Long, Qihang Ding, Deqing Liang
-
Publication number: 20200318959Abstract: A real-time monitoring apparatus for seafloor deformation during hydrate exploitation, includes a main frame, a detecting device, and a sensing and wireless data transmitting device. The detecting device includes at least two detecting straight rods in different directions; the detecting straight rods are connected to the main frame through the movable sleeves; and at least two fixing supports are configured below each detecting straight rod, perpendicular to and uniformly distributed along the detecting straight rod. A movable lever is configured above each detecting straight rod, the movable lever is connected to the main frame through the lever-fixing rod, and a stretchable and compressible spring is configured at an upper end of the movable lever. The sensing and wireless data transmitting device includes at least two tension and compression force sensors in different directions, a gyroscope sensor, a wireless data transmitter, and a power source, all mounted in the main frame.Type: ApplicationFiled: December 15, 2017Publication date: October 8, 2020Applicant: GUANGZHOU INSTITUTE OF ENERGY CONVERSION, CHINESE ACADEMY OF SCIENCESInventors: Dongliang LI, Qi WU, Deqing LIANG
-
Publication number: 20200318022Abstract: An apparatus for growing hydrate crystals includes a high-pressure-resistant crystallization vessel, a temperature control system, a pressure control system, a data collection system, and a mobile shelf. The apparatus can realize a variety of experimental methods such as the bubble method, the droplet method and the solution growth method by changing the experimental fitting in the high-pressure-resistant crystallization vessel, and thereby-improve the versatility of the device.Type: ApplicationFiled: December 27, 2017Publication date: October 8, 2020Applicant: GUANGZHOU INSTITUTE OF ENERGY CONVERSION, CHINESE ACADEMY OF SCIENCESInventors: Xuebing ZHOU, Deqing LIANG, Zhen LONG, Xiaodong SHEN
-
Publication number: 20200239615Abstract: A vinylamide block copolymer kinetic hydrate inhibitor and a preparation method thereof are disclosed. The vinylamide block copolymer kinetic hydrate inhibitor has a structural formula as shown in formula I. Through reverse atom transfer radical polymerization, under an anaerobic operating condition, with vinylcaprolactam and acrylamide as monomers, dimethylformamide as a solvent, azobisisobutyronitrile as an initiator, and a transition metal complex composed of a catalyst anhydrous copper chloride and a ligand 2,2?-bipyridine as a catalytic system, the method has achieved to catalyze a controllable free radical solution polymerization to obtain a poly(vinylcaprolactam-acrylamide) block copolymer kinetic hydrate inhibitor. The synthesized kinetic hydrate inhibitor has a controllable molecular weight, a narrow molecular weight distribution, and a controllable synthesis process, and exhibits an excellent inhibitory effect.Type: ApplicationFiled: May 31, 2018Publication date: July 30, 2020Applicant: GUANGZHOU INSTITUTE OF ENERGY CONVERSION, CHINESE ACADEMY OF SCIENCESInventors: Zhen LONG, Qihang DING, Deqing LIANG