Patents by Inventor Juntao Liu
Juntao 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: 20130197265Abstract: The present invention relates to a process of producing oxalate by CO gas phase method for chiefly solving the technical problem of the low utilization efficiency of nitrogen oxides or nitrous acid esters in the prior art.Type: ApplicationFiled: April 13, 2011Publication date: August 1, 2013Applicants: SHANGHAI RESEARCH INSTITUTE OF PETROCHEMICAL TECHNOLOGY SINOPEC, CHINA PETROLEUM & CHEMICAL CORPORATIONInventors: Juntao Liu, Fengxia Sun, Jun Kuai
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Publication number: 20130198319Abstract: Embodiments monitor application performance metrics representing the performance of a software application executed by one or more host computing devices. Based on the application of rules to the application performance metrics, an elasticity action, such as a power-on action, a power-off action, a deploy action, and/or a destroy action, is determined. The elasticity action is transmitted to one or more target hosts, which perform the elasticity action. The target host may be selected based on host performance metrics. Further, a load balancing service may accommodate the addition of a new software application instance to a cluster and/or the removal of an existing software application instance from the cluster.Type: ApplicationFiled: January 31, 2012Publication date: August 1, 2013Applicant: VMWARE, INC.Inventors: Jianjun SHEN, Ying HE, Hailing XU, Howie XU, Juntao LIU, Shudong ZHOU
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Patent number: 8476469Abstract: A process of producing C1-C4 alkyl nitrite, comprising the following steps: a) firstly feeding nitrogen oxide and oxygen into Reactor I, contacting with an aluminosilicate catalyst, and reacting to produce an effluent I containing NO2 and unreacted NO; b) feeding the effluent I and C1-C4 alkanol into Reactor II, and reacting to produce an effluent II containing C1-C4 alkyl nitrite; and c) separating the effluent II containing C1-C4 alkyl nitrite to obtain C1-C4 alkyl nitrite; wherein reactor I is a fixed bed reactor, and Reactor II is a rotating high-gravity reactor; said nitrogen oxide in step a) is NO, or a mixed gas containing NO and one or more of N2O3 and NO2, wherein the molar number of NO is greater than that of NO2, if any; and the molar ratio of NO in nitrogen oxide to oxygen is 4-25:1.Type: GrantFiled: April 14, 2011Date of Patent: July 2, 2013Assignees: China Petroleum & Chemical Corporation, Shanghai Research Institute of Petrochemical Technology SINOPECInventors: Juntao Liu, Weimin Yang, Wanmin Wang, Linna Zhang
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Publication number: 20130079549Abstract: A process of producing oxalate by CO gas phase method includes the following steps: a) introducing nitrite salt, water and an inorganic acid first into a reactor I to produce a NO containing effluent I; and separating the resultant effluent to obtain the effluent II of NO; b) introducing the effluent II of NO, a C1-C4 alkanol and oxygen into a reactor II to be subjected to the reaction, and separating the resultant effluent to obtain the effluent IV of C1-C4 alkyl nitrites; c) introducing the effluent IV of C1-C4 alkyl nitrites and a CO gas stream into a coupling reactor where they are reacted to produce a NO containing effluent VI. The reactor I and/or the reactor II are preferably rotating supergravity reactors. Therefore, the process is applicable to the industrial production of oxalate by CO gas phase method.Type: ApplicationFiled: June 9, 2011Publication date: March 28, 2013Applicants: Shanghai Research Institute of Petrochemical Technology, Sinopec, China Petroleum & Chemical CorporationInventors: Weimin Yang, Juntao Liu, Wanmin Wang, Lei Li
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Patent number: 8269036Abstract: Provided are processes for producing an oxalate by coupling of CO in the presence of a nitrite, wherein two or more reaction zones in series are used, and at least a portion of the oxalate as reaction product is separated between the reaction zones, and/or the nitrite is fed stagewise. The processes described herein can effectively enhance the selectivity to the oxalate and the single-pass conversion of the feedstock.Type: GrantFiled: December 18, 2009Date of Patent: September 18, 2012Assignees: China Petroleum & Chemical Corporation, Shanghai Research Institute of Petrochemical Technology SinopecInventors: Juntao Liu, Zhiyan Zhu, Wanmin Wang, Lei Li
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Patent number: 8178734Abstract: Provided are processes for producing ethylene glycol from oxalate(s), wherein two or more reaction zones in series are used, and oxalate feedstock is fed stagewise, or hydrogen feedstock and optionally a solvent are fed stagewise. The present processes achieve higher selectivity for the product and improved stability of catalysts.Type: GrantFiled: December 18, 2009Date of Patent: May 15, 2012Assignees: China Petroleum & Chemical Corporation, Shanghai Research Institute of Petrochemical Technology SinopecInventors: Juntao Liu, Weimin Yang, Fengxia Sun, Siqing Zhong, Wanmin Wang
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Publication number: 20110308999Abstract: The present invention discloses a process for the selective hydrogenation of phenylacetylene in the presence of styrene, comprising contacting a phenylacetylene and styrene-containing hydrocarbon fraction feedstock with a carbon-containing catalyst under hydrogenation reaction conditions, wherein the carbon-containing catalyst has a carbon content of from 0.02 to 8 wt % based on the weight of the catalyst.Type: ApplicationFiled: December 17, 2009Publication date: December 22, 2011Inventors: Siqin Li, Juntao Liu, Fengxia Sun, Wanmin Wang, Yuanlin Cheng
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Publication number: 20110263726Abstract: A process for selective oxidative dehydrogenation of a hydrogen-containing CO mixed gas, comprising contacting a hydrogen-containing CO mixed gas raw material with at least one catalyst entity having an increased activity gradient disposed in a reactor under at least one reaction condition chosen from a reaction temperature ranging from 100 to 300° C., a volume space velocity ranging from 100 to 10000 h?1, and a reaction pressure ranging from ?0.08 to 5.0 MPa, wherein the molar ratio of oxygen to hydrogen in the raw material ranges from 0.5:1 to 5:1.Type: ApplicationFiled: April 15, 2011Publication date: October 27, 2011Inventors: Juntao Liu, Siqin Li, Linna Zhang, Lei Li, Jun Kuai
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Publication number: 20110257424Abstract: A process of producing C1-C4 alkyl nitrite, comprising the following steps: a) firstly feeding nitrogen oxide and oxygen into Reactor I, contacting with an aluminosilicate catalyst, and reacting to produce an effluent I containing NO2 and unreacted NO; b) feeding the effluent I and C1-C4 alkanol into Reactor II, and reacting to produce an effluent II containing C1-C4 alkyl nitrite; and c) separating the effluent II containing C1-C4 alkyl nitrite to obtain C1-C4 alkyl nitrite; wherein reactor I is a fixed bed reactor, and Reactor II is a rotating high-gravity reactor; said nitrogen oxide in step a) is NO, or a mixed gas containing NO and one or more of N2O3 and NO2, wherein the molar number of NO is greater than that of NO2, if any; and the molar ratio of NO in nitrogen oxide to oxygen is 4-25:1.Type: ApplicationFiled: April 14, 2011Publication date: October 20, 2011Applicants: Shanghai Research Institute of Petrochemical Technology SINOPEC, China Petroleum & Chemical CorporationInventors: Juntao LIU, Weimin YANG, Wanmin WANG, Linna ZHANG
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Publication number: 20110257425Abstract: The present invention relates to a process for producing C1-C4 alkyl nitrite, comprising loading a resin catalyst layer and/or a porous filler layer into a reactor, passing nitrogen oxide, oxygen and C1-C4 alkanol as raw materials through the resin catalyst layer and/or porous filler layer in a counter current, parallel current or cross current manner, reacting under the conditions including a reaction temperature of from 0 to 150° C., a reaction pressure of from ?0.09 to 1.5 MPa, a molar ratio of C1-C4 alkanol/nitrogen oxide of 1-100:1, a molar ratio of nitrogen oxide/oxygen of 4-50:1, to obtain an effluent containing C1-C4 alkyl nitrite, wherein said nitrogen oxide is NO, or a mixed gas containing NO and one or more selected from N2O3 and NO2.Type: ApplicationFiled: April 15, 2011Publication date: October 20, 2011Inventors: Juntao Liu, Siqin Li, Lei Li, Linna Zhang
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Patent number: 7875756Abstract: A process for producing lower olefins is disclosed. The technical problem is to overcome the defects presented in the prior art including high reaction pressure, high reaction temperature, low yield and selectivity of lower olefins as the target products, poor stability and short life of catalyst, and limited suitable feedstocks. The disclosed process, which is carried out under the conditions of catalytic cracking olefins and adopts as a feedstock an olefins-enriched mixture containing one or more C4 or higher olefins and optionally an organic oxygenate compound, comprises the steps of: a) letting the feedstock contact with a crystalline aluminosilicate catalyst having a SiO2/Al2O3 molar ratio of at least 10, to thereby produce a reaction effluent containing lower olefins; and b) separating lower olefins from the reaction effluent; wherein, the reaction pressure is from ?0.1 MPa to <0 MPa.Type: GrantFiled: August 9, 2006Date of Patent: January 25, 2011Assignees: China Petroleum & Chemical Corporation, Shanghai Research Institute of Petrochemical Technology SinopecInventors: Zaiku Xie, Juntao Liu, Siqing Zhong, Wenwei Wu
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Publication number: 20100179356Abstract: Provided are processes for producing ethylene glycol from oxalate(s), wherein two or more reaction zones in series are used, and oxalate feedstock is fed stagewise, or hydrogen feedstock and optionally a solvent are fed stagewise. The present processes achieve higher selectivity for the product and improved stability of catalysts.Type: ApplicationFiled: December 18, 2009Publication date: July 15, 2010Inventors: Juntao LIU, Weimin Yang, Fengxia Sun, Siqing Zhong, Wanmin Wang
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Publication number: 20100160671Abstract: Provided are processes for producing an oxalate by coupling of CO in the presence of a nitrite, wherein two or more reaction zones in series are used, and at least a portion of the oxalate as reaction product is separated between the reaction zones, and/or the nitrite is fed stagewise. The processes described herein can effectively enhance the selectivity to the oxalate and the single-pass conversion of the feedstock.Type: ApplicationFiled: December 18, 2009Publication date: June 24, 2010Inventors: Juntao LIU, Zhiyan Zhu, Wanmin Wang, Lei Li
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Patent number: 7692056Abstract: The present invention provides a process for producing lower olefins from methanol or dimethyl ether. The technical problem mainly addressed in the present invention is to overcome the defects presented in the prior art including high operation temperature, low yield and selectivity of lower olefins as the target products, and poor stability and short regeneration period of catalyst.Type: GrantFiled: August 15, 2006Date of Patent: April 6, 2010Assignee: Shanghai Research Institute of Petrochemical Technology SinopecInventors: Zaiku Xie, Juntao Liu, Weimin Yang, Siqing Zhong, Xiaofeng Chen
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Patent number: 7692057Abstract: The present invention provides a process for producing lower olefins by catalytic cracking a feedstock comprising an olefins-enriched mixture containing C4 or higher olefins and optionally an organic oxygenate compound. The technical problem mainly addressed in the present invention is to overcome the defects presented in the prior art including low yield and selectivity of lower olefins as the target products, and short regeneration period of catalyst.Type: GrantFiled: August 11, 2006Date of Patent: April 6, 2010Assignees: China Petroleum & Chemical Corporation, Shanghai Research Institute of Petrochemical Technology SinopecInventors: Zaiku Xie, Juntao Liu, Weimin Yang, Siqing Zhong, Yanhui Yuan, Huiming Zhang
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Publication number: 20100063335Abstract: A process for producing light olefins from methanol and/or dimethyl ether comprising the steps of: (a) introducing a feed comprising methanol and/or dimethyl ether into a fluidized-bed reactor from its bottom, and reacting the feed in a dense phase zone and a transition zone of the fluidized-bed reactor by contacting it with a catalyst, to form an effluent I comprising unreacted feed, reaction products and entrained solid particulate catalyst; (b) introducing a terminating agent at upper portion of the transition zone and/or lower portion of a gas-solid separating zone of the fluidized-bed reactor into the effluent I, to give an effluent II, wherein the terminating agent is at least one selected from the group consisting of water, C2 to C5 alcohols, C2 to C10 ethers, hydrocarbons having 4 or more carbon atoms, and C6 to C12 aromatic hydrocarbons; and (c) passing the effluent II into the gas-solid separating zone in upper portion of the fluidized-bed reactor, where gas-solid separation is accomplished to giveType: ApplicationFiled: October 19, 2007Publication date: March 11, 2010Applicants: CHINA PETROLEUM & CHEMICAL CORPORATION, SHANGHAI RESEARCH INSTITUTE OF PETROCHEMICAL TECHNOLOGY SINOPECInventors: Zaiku Xie, Juntao Liu, Siqing Zhong, Huiming Zhang
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Publication number: 20100056831Abstract: The present invention discloses a process for the co-production of ethylene and dimethyl ether, comprising (i) providing a feedstock comprising ethanol and methanol, with a weight ratio of methanol to ethanol being in a range of from 1:10 to 10:1; (ii) feeding the feedstock into a reaction zone containing a solid catalyst to give an effluent, wherein a reaction temperature is in a range of from 200 to 480° C., a reaction pressure is in a range of from 0 to 2 MPa (gauge), and a weight hourly space velocity of the feedstock is in a range of from 0.1 to 10 h?1, and wherein the solid catalyst is selected from the group consisting of alumina catalysts and crystalline aluminosilicate catalysts; and (iii) isolating ethylene and dimethyl ether from the effluent from step (ii).Type: ApplicationFiled: August 10, 2007Publication date: March 4, 2010Applicants: CHINA PETROLEUM & CHEMICAL CORPORATION, SHANGHAI RESEARCH INSTITUTE OF PETROCHEMICAL TECHNInventors: Juntao Liu, Siqing Zhong, Lei Li, Xiaoqi Xin
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Publication number: 20090105512Abstract: The present invention provides a process for producing lower olefins. The technical problem mainly addressed in the present invention is to overcome the defects presented in the prior art including high reaction pressure, high reaction temperature, low yield and selectivity of lower olefins as the target products, poor stability and short life of catalyst, and limited suitable feedstocks. The present process, which is carried out under the conditions of catalytic cracking olefins and adopts as a feedstock an olefins-enriched mixture containing one or more C4 or higher olefins and optionally an organic oxygenate compound, comprises the steps of: a) letting the feedstock contact with a crystalline aluminosilicate catalyst having a SiO2/Al2O3 molar ratio of at least 10, to thereby produce a reaction effluent containing lower olefins; and b) separating lower olefins from the reaction effluent; wherein, the reaction pressure is from ?0.1 MPa to <0 MPa.Type: ApplicationFiled: August 9, 2006Publication date: April 23, 2009Applicants: China Petroleum & Chemical Corporation, Shanghai Research Institute of Petrochemical Technology SinopecInventors: Zaiku Xie, Juntao Liu, Siqing Zhong, Wenwei Wu
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Publication number: 20070038011Abstract: The present invention provides a process for producing lower olefins from methanol or dimethyl ether. The technical problem mainly addressed in the present invention is to overcome the defects presented in the prior art including high operation temperature, low yield and selectivity of lower olefins as the target products, and poor stability and short regeneration period of catalyst.Type: ApplicationFiled: August 15, 2006Publication date: February 15, 2007Applicants: China Petroleum & Chemical Corporation, SHANGHAI RESEARCH INSTITUTE OF PETROCHEMICAL TECHNOLOGY SINOPECInventors: Zaiku Xie, Juntao Liu, Weimin Yang, Siqing Zhong, Xiaofeng Chen
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Publication number: 20070038010Abstract: The present invention provides a process for producing lower olefins by catalytic cracking a feedstock comprising an olefins-enriched mixture containing C4 or higher olefins and optionally an organic oxygenate compound. The technical problem mainly addressed in the present invention is to overcome the defects presented in the prior art including low yield and selectivity of lower olefins as the target products, and short regeneration period of catalyst.Type: ApplicationFiled: August 11, 2006Publication date: February 15, 2007Applicants: China Petroleum & Chemical Corporation, SHANGHAI RESEARCH INSTITUTE OF PETROCHEMICAL TECHNOLOGY SINOPECInventors: Zaiku Xie, Juntao Liu, Weimin Yang, Siqing Zhong, Yanhui Yuan, Huiming Zhang