Patents by Inventor Shiping Liu
Shiping Liu 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: 20210290111Abstract: Methods and devices include automated coaching for management of glucose states by receiving a user's glucose levels using a continuous glucose monitoring (CGM) device, determining a time in range (TIR) value, determining a TIR state, receiving a glucose variability (GV) value, determining a GV state, determining a starting state based on the TIR state and the GV state, determining that the starting state corresponds to a non-ideal state, generating an optimized pathway to reach an ideal state based on one or more account vectors such as addressing self-management behavior including food, activity, and medication use. The optimized pathway may further be based on computer detection and classification of significant events of interest over time.Type: ApplicationFiled: March 19, 2021Publication date: September 23, 2021Applicant: Welldoc, Inc.Inventors: Shiping LIU, Mansur SHOMALI, Abhimanyu KUMBARA, Anand IYER, Malinda PEEPLES, Michelle DUGAS, Kenyon CROWLEY, Guodong GAO
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Publication number: 20210290113Abstract: Methods and devices include automated coaching for management of glucose states by receiving a user's glucose levels using a continuous glucose monitoring (CGM) device, determining a time in range (TIR) value, determining a TIR state, receiving a glucose variability (GV) value, determining a GV state, determining a starting state based on the TIR state and the GV state, determining that the starting state corresponds to a non-ideal state, generating an optimized pathway to reach an ideal state based on one or more account vectors such as addressing self-management behavior including food, activity, and medication use. The optimized pathway may further be based on computer detection and classification of significant events of interest over time.Type: ApplicationFiled: April 9, 2021Publication date: September 23, 2021Applicant: Welldoc, Inc.Inventors: Shiping LIU, Mansur SHOMALI, Abhimanyu KUMBARA, Anand IYER, Malinda PEEPLES, Michelle DUGAS, Kenyon CROWLEY, Guodong GAO
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Publication number: 20210246093Abstract: Provided is a method for directly preparing dimethyl ether by synthesis gas, the method comprises: the synthesis gas is passed through a reaction zone carrying a catalyst, and reacted under the reaction conditions sufficient to convert at least a portion of the raw materials to obtain the reaction effluent comprising dimethyl ether; and the dimethyl ether is separated from the reaction effluent, wherein the catalyst is zinc aluminum spinel oxide. In the present invention, only one zinc aluminum spinel oxide catalyst is used, which can make the synthesis gas to highly selectively form dimethyl ether, the catalyst has good stability and can be regenerated. The method of the present invention realizes the production of dimethyl ether in one step by the synthesis gas, and reduces the large energy consumption problem caused by step-by-step production.Type: ApplicationFiled: August 1, 2018Publication date: August 12, 2021Applicant: Dalian Institute of Chemical Physics, Chinese Academy of SciencesInventors: Youming NI, Wenliang ZHU, Zhongmin LIU, Yong LIU, Hongchao LIU, Xiangang MA, Shiping LIU
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Patent number: 11014076Abstract: A catalyst for synthesizing aromatic hydrocarbons, a preparation method thereof and a method for synthesizing aromatic hydrocarbons by using the catalyst. The catalyst comprises acidic molecular sieve particles and zinc-aluminum composite oxide particles. The catalyst has relatively high selectivity to aromatic hydrocarbons, particularly BTX, stable performance, and a long single-pass life.Type: GrantFiled: August 22, 2017Date of Patent: May 25, 2021Assignee: Dalian Institute of Chemical Physics, Chinese Academy of SciencesInventors: Youming Ni, Wenliang Zhu, Zhongmin Liu, Zhiyang Chen, Yong Liu, Hongchao Liu, Xiangang Ma, Shiping Liu
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Patent number: 10927051Abstract: Disclosed is a method for preparing aromatic hydrocarbons, particularly relates to the preparation of the aromatic hydrocarbons by passing methanol and carbon monoxide through a reactor loaded with an acidic ZSM-5 molecular sieve catalyst containing no metal additive under reaction conditions. Compared with the prior art, the method provided by the present invention can improve and stabilize the selectivity to aromatic hydrocarbons, particularly BTX, by adding carbon monoxide in methanol aromatization, and also prolongs the single-pass life of the catalyst. The performance of an inactivated catalyst is not significantly degraded after repeated regenerations. Furthermore, the catalyst preparation process omits the step of adding a metal additive, so that not only the process is simplified, but also costs are greatly reduced, and environmental protection is facilitated.Type: GrantFiled: August 22, 2017Date of Patent: February 23, 2021Assignee: Dalian Institute of Chemical Physics, Chinese Academy of SciencesInventors: Youming Ni, Wenliang Zhu, Zhongmin Liu, Zhiyang Chen, Yong Liu, Hongchao Liu, Xiangang Ma, Shiping Liu
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Patent number: 10919832Abstract: Provided is a method for preparing a lower unsaturated fatty acid ester, which comprises carrying out an aldol condensation reaction between dimethoxymethane (DMM) and a lower acid or ester with a molecular formula of R1—CH2—COO—R2 on an acidic molecular sieve catalyst in an inert atmosphere to obtain a lower unsaturated fatty acid or ester(CH2?C(R1)—COO—R2), wherein R1 and R2 are groups each independently selected from the group consisting of H— and C1-C4 saturated alkyl group.Type: GrantFiled: November 25, 2016Date of Patent: February 16, 2021Assignee: Dalian Institute of Chemical Physics, Chinese Academy of SciencesInventors: Zhanling Ma, Wenliang Zhu, Xiangang Ma, Hongchao Liu, Yong Liu, Youming Ni, Shiping Liu, Qiwei Chen, Zhongmin Liu
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Patent number: 10815162Abstract: A method for preparing aromatics from syngas, which includes a) contacting a raw material stream containing syngas with a catalyst in a reaction zone under reaction conditions sufficient to convert at least part of the raw material to obtain a reaction effluent; b) separating the reaction effluent to obtain at least a recycle stream containing gas-phase hydrocarbons having 1 to 4 carbon atoms and unconverted syngas and a liquid stream containing hydrocarbons having 5 or more carbon atoms; c) returning the recycle stream to the reaction zone; and d) separating aromatic products from the liquid stream, wherein the catalyst includes at least one of an inert carrier-confined highly dispersed metal oxide material, an acidic molecular sieve, and, optionally, graphite powder and a dispersant.Type: GrantFiled: October 29, 2018Date of Patent: October 27, 2020Assignee: DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCESInventors: Youming Ni, Wenliang Zhu, Zhongmin Liu, Yong Liu, Zhiyang Chen, Hongchao Liu, Xiangang Ma, Shiping Liu
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Publication number: 20200270188Abstract: A method for directly preparing p-xylene from synthetic gas and aromatic hydrocarbon. The method includes contacting the feedstock containing synthetic gas and aromatic hydrocarbon excluding p-xylene with the catalyst in the reaction zone under reaction conditions sufficient to convert at least part of the feedstock to obtain a reaction effluent containing p-xylene; and separating p-xylene from the reaction effluent, where the catalyst includes a highly dispersed metal oxide material confined by an inert carrier, an acidic molecular sieve, and optionally at least one of graphite powder and dispersant, where in the highly dispersed metal oxide material confined by the inert carrier, the inert carrier is at least one of silicon oxide and alumina, and the content of the metal oxide in terms of metal is less than or equal to 10% by mass calculated based on the weight of the highly dispersed metal oxide material confined by the inert carrier.Type: ApplicationFiled: November 21, 2017Publication date: August 27, 2020Applicant: DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCESInventors: Youming NI, Wenliang ZHU, Zhongmin LIU, Yong LIU, Zhiyang CHEN, Hongchao LIU, Xiangang MA, Shiping LIU
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Publication number: 20200270187Abstract: A method for preparing aromatics from syngas, which includes a) contacting a raw material stream containing syngas with a catalyst in a reaction zone under reaction conditions sufficient to convert at least part of the raw material to obtain a reaction effluent; b) separating the reaction effluent to obtain at least a recycle stream containing gas-phase hydrocarbons having 1 to 4 carbon atoms and unconverted syngas and a liquid stream containing hydrocarbons having 5 or more carbon atoms; c) returning the recycle stream to the reaction zone; and d) separating aromatic products from the liquid stream, wherein the catalyst includes at least one of an inert carrier-confined highly dispersed metal oxide material, an acidic molecular sieve, and, optionally, graphite powder and a dispersant.Type: ApplicationFiled: October 29, 2018Publication date: August 27, 2020Applicant: DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCESInventors: Youming NI, Wenliang ZHU, Zhongmin LIU, Yong LIU, Zhiyang CHEN, Hongchao LIU, Xiangang MA, Shiping LIU
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Publication number: 20200239401Abstract: A method for directly producing methyl acetate and/or acetic acid from syngas, carried out in at least two reaction zones, including: feeding a raw material containing syngas into a first reaction zone to contact and react with a metal catalyst; allowing an obtained effluent to enter a second reaction zone directly or after the addition of carbon monoxide so as to contact and react with a solid acid catalyst; separating the obtained effluent to obtain product of acetate and/or acetic acid, and optionally returning a residual part to enter the first reaction zone and/or the second reaction zone to recycle the reaction. This provides a novel method for directly converting syngas into methyl acetate and/or acetic acid. Further, the product selectivity of the product of methyl acetate or acetic acid is greater than 93%, and the quantity of methyl acetate and acetic acid may be adjusted according to processing.Type: ApplicationFiled: September 29, 2017Publication date: July 30, 2020Applicant: DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCESInventors: Hongchao LIU, Wenliang ZHU, Zhongmin LIU, Yong LIU, Shiping LIU, Fuli WEN, Youming NI, Xiangang MA
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Publication number: 20200231523Abstract: A method for directly producing ethanol from syngas, carried out in three reaction zones, including: feeding a raw material containing syngas and dimethyl ether into a first reaction zone to contact with a solid acid catalyst, reacting; allowing the effluent from the first reaction zone to enter a second reaction zone to contact with a metal catalyst and react; separating the effluent from the second reaction zone to obtain product ethanol and by-product methanol; allowing by-product methanol to enter a third reaction zone to perform a dehydration reaction to obtain dimethyl ether, and allowing the obtained dimethyl ether to enter the first reaction zone to recycle the reaction. This provides a novel method for directly converting syngas to ethanol and an ethanol product can be directly produced by using syngas as a raw material.Type: ApplicationFiled: September 29, 2017Publication date: July 23, 2020Applicant: DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCESInventors: Hongchao LIU, Wenliang ZHU, Zhongmin LIU, Yong LIU, Shiping LIU, Fuli WEN, Youming NI, Xiangang MA
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Publication number: 20200062686Abstract: Provided is a method for preparing a lower unsaturated fatty acid ester, which comprises carrying out an aldol condensation reaction between dimethoxymethane (DMM) and a lower acid or ester with a molecular formula of R1—CH2—COO—R2 on an acidic molecular sieve catalyst in an inert atmosphere to obtain a lower unsaturated fatty acid or ester(CH2?C(R1)—COO—R2), wherein R1 and R2 are groups each independently selected from the group consisting of H- and C1-C4 saturated alkyl group.Type: ApplicationFiled: November 25, 2016Publication date: February 27, 2020Applicant: Dalian Institute of Chemical Physics, Chinese Academy of SciencesInventors: Zhanling MA, Wenliang ZHU, Xiangang MA, Hongchao LIU, Yong LIU, Youming NI, Shiping LIU, Qiwei CHEN, Zhongmin LIU
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Publication number: 20190262811Abstract: A catalyst for synthesizing aromatic hydrocarbons, a preparation method thereof and a method for synthesizing aromatic hydrocarbons by using the catalyst. The catalyst comprises acidic molecular sieve particles and zinc-aluminum composite oxide particles. The catalyst has relatively high selectivity to aromatic hydrocarbons, particularly BTX, stable performance, and a long single-pass life.Type: ApplicationFiled: August 22, 2017Publication date: August 29, 2019Applicant: Dalian Institute of Chemical Physics, Chinese Academy of SciencesInventors: Youming NI, Wenliang ZHU, Zhongmin LIU, Zhiyang CHEN, Yong LIU, Hongchao LIU, Xiangang MA, Shiping LIU
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Publication number: 20190256440Abstract: Disclosed is a method for preparing aromatic hydrocarbons, particularly relates to the preparation of the aromatic hydrocarbons by passing methanol and carbon monoxide through a reactor loaded with an acidic ZSM-5 molecular sieve catalyst containing no metal additive under reaction conditions. Compared with the prior art, the method provided by the present invention can improve and stabilize the selectivity to aromatic hydrocarbons, particularly BTX, by adding carbon monoxide in methanol aromatization, and also prolongs the single-pass life of the catalyst. The performance of an inactivated catalyst is not significantly degraded after repeated regenerations. Furthermore, the catalyst preparation process omits the step of adding a metal additive, so that not only the process is simplified, but also costs are greatly reduced, and environmental protection is facilitated.Type: ApplicationFiled: August 22, 2017Publication date: August 22, 2019Applicant: Dalian Institute of Chemical Physics, Chinese Academy of SciencesInventors: Youming NI, Wenliang ZHU, Zhongmin LIU, Zhiyang CHEN, Yong LIU, Hongchao LIU, Xiangang MA, Shiping LIU
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Patent number: 10059649Abstract: A method for producing ethanol and coproducing methanol on a catalyst in a reactor using a co-feed of a synthesis gas and acetate as a reaction raw material comprising passing a raw material gas containing an acetate and a synthesis gas through a reactor loaded with a catalyst to produce ethanol and coproduce methanol under conditions of a reaction temperature of 150-350° C., a reaction pressure of 0.1-20.0 MPa, a reaction volume hourly space velocity of 100-45000 mlg?1h?1, and an acetate weight hourly space velocity of 0.01-5.0 h?1; and the active components of the catalyst are copper and optionally zinc and/or aluminum, which greatly facilitates the conversion of carbon monoxide to methanol, while an extremely high activity of acetate hydrogenation is maintained.Type: GrantFiled: December 16, 2013Date of Patent: August 28, 2018Assignee: DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCESInventors: Yong Liu, Wenliang Zhu, Hongchao Liu, Youming Ni, Zhongmin Liu, Shuanghe Meng, Lina Li, Shiping Liu, Hui Zhou
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Patent number: 10040739Abstract: Disclosed is a method for preparing a double end capped glycol ether, the method comprising: introducing into a reactor a raw material comprising a glycol monoether and a monohydric alcohol ether, and enabling the raw material to contact and react with an acidic molecular sieve catalyst to generate a double end capped glycol ether, a reaction temperature being 50-300° C., a reaction pressure being 0.1-15 MPa, a WHSV of the glycol monoether in the raw material being 0.01-15.0 h?1 , and a mole ratio of the monohydric alcohol ether to the glycol monoether in the raw material being 1-100:1. The method of the present invention enables a long single-pass lifespan of the catalyst and repeated regeneration, has a high yield and selectivity of a target product, low energy consumption during separation of the product, a high economic value of a by-product, and is flexible in production scale and application.Type: GrantFiled: December 22, 2014Date of Patent: August 7, 2018Assignee: Dalian Institute of Chemical Physics, Chinese Academy of SciencesInventors: Youming Ni, Wenliang Zhu, Hongchao Liu, Yong Liu, Zhongmin Liu, Lina Li, Shiping Liu, Hui Zhou
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Patent number: 9944588Abstract: A method for preparing methyl formate in which a raw material containing formaldehyde, methanol and/or dimethyl ether is introduced into a first reaction zone to come into contact with a catalyst A, and a component I is obtained by separation, the component I is introduced into a second reaction zone to come into contact with a catalyst B so as to obtain, by separation, methyl formate as a product, dimethyl ether that is returned to the first reaction zone and a component II that is returned to the second reaction zone, the catalysts have a long service life, the reaction conditions are mild, and the utilization rate of the raw material is high, thus enabling a continuous production for large-scale industrial application.Type: GrantFiled: November 17, 2014Date of Patent: April 17, 2018Assignee: DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCESInventors: Youming Ni, Wenliang Zhu, Yong Liu, Hongchao Liu, Zhongmin Liu, Lina Li, Shiping Liu, Hui Zhou
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Patent number: 9938227Abstract: Method for preparing methyl formate and coproducing dimethyl ether by reacting a formaldehyde and methanol raw material (molar ratio range of 1:4 to 1:0.05) in a First Reaction Region at ranges from 50° C. to 100° C. with Catalyst A resulting in post-reaction material separated into Constituent I. Reacting Constituent I in a Second Reaction Region at ranges from 50° C. to 200° C. and from 0.1 MPa to 10 MPa with Catalyst B resulting in post-reaction material, which is separated into methyl formate, dimethyl ether and Constituent II. At least 1% of dimethyl ether is product, and recycling the rest to the First Reaction Region. Constituent II is recycled to the Second Reaction Region. Each component is gaseous phase and/or liquid phase, independently. The method shows long catalyst life, mild reaction condition, high utilization ratio of raw materials, continuous production and large scale industrial application potential.Type: GrantFiled: November 17, 2014Date of Patent: April 10, 2018Assignee: DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCESInventors: Youming Ni, Wenliang Zhu, Yong Liu, Hongchao Liu, Zhongmin Liu, Lina Li, Shiping Liu, Hui Zhou
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Publication number: 20170334818Abstract: Disclosed is a method for preparing a double end capped glycol ether, the method comprising: introducing into a reactor a raw material comprising a glycol monoether and a monohydric alcohol ether, and enabling the raw material to contact and react with an acidic molecular sieve catalyst to generate a double end capped glycol ether, a reaction temperature being 50-300° C., a reaction pressure being 0.1-15 MPa, a WHSV of the glycol monoether in the raw material being 0.01-15.0 h?1, and a mole ratio of the monohydric alcohol ether to the glycol monoether in the raw material being 1-100:1. The method of the present invention enables a long single-pass lifespan of the catalyst and repeated regeneration, has a high yield and selectivity of a target product, low energy consumption during separation of the product, a high economic value of a by-product, and is flexible in production scale and application.Type: ApplicationFiled: December 22, 2014Publication date: November 23, 2017Applicant: Dalian Institute of Chemical Physics, Chinese Academy of SciencesInventors: Youming NI, Wenliang ZHU, Hongchao LIU, Yong LIU, Zhongmin LIU, Lina LI, Shiping LIU, Hui Zhou
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Publication number: 20170320807Abstract: Method for preparing methyl formate and coproducing dimethyl ether by reacting a formaldehyde and methanol raw material (molar ratio range of 1:4 to 1:0.05) in a First Reaction Region at ranges from 50° C. to 100° C. with Catalyst A resulting in post-reaction material separated into Constituent I. Reacting Constituent I in a Second Reaction Region at ranges from 50° C. to 200° C. and from 0.1 MPa to 10 MPa with Catalyst B resulting in post-reaction material, which is separated into methyl formate, dimethyl ether and Constituent II. At least 1% of dimethyl ether is product, and recycling the rest to the First Reaction Region. Constituent II is recycled to the Second Reaction Region. Each component is gaseous phase and/or liquid phase, independently. The method shows long catalyst life, mild reaction condition, high utilization ratio of raw materials, continuous production and large scale industrial application potential.Type: ApplicationFiled: November 17, 2014Publication date: November 9, 2017Applicant: DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCESInventors: Youming NI, Wenliang ZHU, Yong LIU, Hongchao LIU, Zhongmin LIU, Lina LI, Shiping LIU, Hui ZHOU