Patents by Inventor Zhijian Da

Zhijian Da 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).

  • Publication number: 20200129964
    Abstract: The present invention relates to the field of catalytic cracking, and discloses a composition capable of reducing CO and NOx emissions, the preparation method and use thereof, and a fluidized catalytic cracking method. The inventive composition capable of reducing CO and NOx emissions comprises an inorganic oxide carrier, and a first metal element, optionally a second metal element, optionally a third metal element and optionally a fourth metal element supported on the inorganic oxide carrier, wherein the first metal element includes Fe and Co, and wherein the weight ratio of Fe to Co is 1:(0.1-10) on an oxide basis. The inventive composition has better hydrothermal stability and higher activity of reducing CO and NOx emissions in the flue gas from the regeneration.
    Type: Application
    Filed: July 5, 2018
    Publication date: April 30, 2020
    Inventors: Haitao SONG, Qiuqiao JIANG, Huiping TIAN, Wei LIN, Peng WANG, Yan SUN, Xue YANG, Jiushun ZHANG, Zhijian DA
  • Publication number: 20190233749
    Abstract: The present application relates to a process for treating gasoline, comprising the steps of: contacting a gasoline feedstock with a mixed catalyst and subjecting it to desulfurization and aromatization in the presence of hydrogen to obtain a desulfurization-aromatization product; optionally, splitting the resulting desulfurization-aromatization product into a light gasoline fraction and a heavy gasoline fraction; and, optionally, subjecting the resulting light gasoline fraction to etherification to obtain an etherified oil; wherein the mixed catalyst comprises an adsorption desulfurization catalyst and an aromatization catalyst. The process of the present application is capable of reducing the sulfur and olefin content of gasoline and at the same time increasing the octane number of the gasoline while maintaining a high yield of gasoline.
    Type: Application
    Filed: October 20, 2017
    Publication date: August 1, 2019
    Inventors: Youhao XU, Yibin LUO, Xin WANG, Ying OUYANG, Zhijian DA, Xingtian SHU, Xieqing WANG
  • Patent number: 9771529
    Abstract: A process for producing light olefins and aromatics, which comprises reacting a feedstock by contacting with a catalytic cracking catalyst in at least two reaction zones, wherein the reaction temperature of at least one reaction zone among the reaction zones downstream of the first reaction zone is higher than that of the first reaction zone and its weight hourly space velocity is lower than that of the first reaction zone, separating the spent catalyst from the reaction product vapor, regenerating the separated spent catalyst and returning the regenerated catalyst to the reactor, and separating the reaction product vapor to obtain the desired products, light olefins and aromatics. This process produces maximum light olefins such as propylene, ethylene, etc from heavy feedstocks, wherein the yield of propylene exceeds 20% by weight, and produces aromatics such as toluene, xylene, etc at the same time.
    Type: Grant
    Filed: June 2, 2014
    Date of Patent: September 26, 2017
    Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, RESEARCH INSTITUTE OF PETROLEUM PROCESSING, SINOPEC
    Inventors: Jun Long, Zhijian Da, Dadong Li, Xieqing Wang, Xingtian Shu, Jiushun Zhang, Hong Nie, Chaogang Xie, Zhigang Zhang, Wei Wang
  • Patent number: 9611432
    Abstract: The present invention provides a catalytic cracking catalyst, processing method and use thereof. When the catalyst is added into a commercial catalytic cracking unit, it has an initial activity of not higher than 80, preferably not higher than 75, more preferably not higher than 70, a self-balancing time of 0.1-50 h, and an equilibrium activity of 35-60. Said method enables the activity and selectivity of the catalyst in the catalytic cracking unit to be more homogeneous and notably improves the selectivity of the catalytic cracking catalyst, so as to obviously reduce the dry gas and coke yields, to sufficiently use steam and to reduce the energy consumption of the FCC unit.
    Type: Grant
    Filed: June 24, 2010
    Date of Patent: April 4, 2017
    Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, RESEARCH INSTITUTE OF PETROLEUM PROCESSING, SINOPEC
    Inventors: Youhao Xu, Shouye Cui, Jun Long, Jianhong Gong, Zhijian Da, Jiushun Zhang, Yuxia Zhu, Yibin Luo, Jinlian Tang
  • Patent number: 9175230
    Abstract: A cracking catalyst, which contains alumina, phosphorus and molecular sieve, with or without clay, wherein said alumina is ?-alumina or a mixture of ?-alumina and ?-alumina and/or ?-alumina, and wherein the catalyst contains, on the basis of the total amount of the catalyst, 0.5-50 wt % of ?-alumina, 0-50 wt % of ?-alumina and/or ?-alumina, 10-70 wt % of molecular sieve, 0-75 wt % of clay, and 0.1-8 wt % of phosphorus, measured as P2O5. The catalyst not only has higher cracking activity and higher cracking ability for cracking heavy oil, but also improves significantly quality and yield of gasoline, LCO and LPG in cracking products.
    Type: Grant
    Filed: July 14, 2005
    Date of Patent: November 3, 2015
    Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, RESEARCH INSTITUTE OF PETROLEUM PROCESSING, SINOPEC
    Inventors: Jun Long, Zhonghong Qiu, Youbao Lu, Jiushun Zhang, Zhijian Da, Huiping Tian, Yuxia Zhu, Wanhong Zhang, Zhenbo Wang
  • Patent number: 9163182
    Abstract: A novel process for cracking olefins including contacting a hydrocarbon oil with a catalyst in a riser reactor having multiple reaction zones under cracking reaction conditions; separating reaction products and the catalyst; regenerating at least a part of spent catalyst obtained, contacting a part of the regenerated catalyst with the hydrocarbon in the first reaction zone; contacting the other part of the spent catalyst and/or regenerated catalyst in at least one reaction zone after the first reaction zone with the products obtained in previous reaction zones.
    Type: Grant
    Filed: February 6, 2008
    Date of Patent: October 20, 2015
    Assignees: China Petroleum & Chemical Corporation, Research Institute of Petroleum Processing, Sinopec
    Inventors: Jun Long, Yuxia Zhu, Huiping Tian, Yujian Liu, Zhenyu Chen, Yaoqing Guo, Zhijian Da, Jiushun Zhang, Mingyuan He
  • Publication number: 20140275673
    Abstract: A process for producing light olefins and aromatics, which comprises reacting a feedstock by contacting with a catalytic cracking catalyst in at least two reaction zones, wherein the reaction temperature of at least one reaction zone among the reaction zones downstream of the first reaction zone is higher than that of the first reaction zone and its weight hourly space velocity is lower than that of the first reaction zone, separating the spent catalyst from the reaction product vapor, regenerating the separated spent catalyst and returning the regenerated catalyst to the reactor, and separating the reaction product vapor to obtain the desired products, light olefins and aromatics. This process produces maximum light olefins such as propylene, ethylene, etc from heavy feedstocks, wherein the yield of propylene exceeds 20% by weight, and produces aromatics such as toluene, xylene, etc at the same time.
    Type: Application
    Filed: June 2, 2014
    Publication date: September 18, 2014
    Applicants: CHINA PETROLEUM CHEMICAL CORPORATION, RESEARCH INSTITUTE OF PETROLEUM PROCESSING, SINOPEC
    Inventors: Jun LONG, Zhijian DA, Dadong LI, Xieqing WANG, Xingtian SHU, Jiushun ZHANG, Hong NIE, Chaogang XIE, Zhigang ZHANG, Wei WANG
  • Patent number: 8778170
    Abstract: A process for producing light olefins and aromatics, which comprises reacting a feedstock with a catalytic cracking catalyst in at least two reaction zones, wherein the reaction temperature of at least one reaction zone downstream of the first reaction zone is higher than that of the first reaction zone and its weight hourly space velocity is lower than that of the first reaction zone. The spent catalyst is separated, from the reaction product vapor, regenerated, and then returned to the reactor. The reaction product vapor is separated to obtain the desired products, light olefins and aromatics. This process efficiently produces light olefins such as propylene, ethylene, etc from heavy feedstocks, wherein the yield of propylene exceeds 20% by weight, and produces aromatics such as toluene, xylene, etc at the same time.
    Type: Grant
    Filed: March 8, 2005
    Date of Patent: July 15, 2014
    Assignees: China Petroleum Chemical Corporation, Research Institute of Petroleum Processing Sinopec
    Inventors: Jun Long, Zhijian Da, Dadong Li, Xieqing Wang, Xingtian Shu, Jiushun Zhang, Hong Nie, Chaogang Xie, Zhigang Zhang, Wei Wang
  • Patent number: 8696887
    Abstract: A catalytic conversion process which comprises catalytic cracking reaction of a hydrocarbon feedstock contacting with a medium pore size zeolite enriched catalyst in a reactor, characterized in that reaction temperature, weight hourly space velocity and catalyst/feedstock ratio by weight are sufficient to achieve a yield of fluid catalytic cracking gas oil between 12% and 60% by weight of said feedstock, wherein said weight hourly space velocity is between 25 h?1 and 100 h?1, said reaction temperature is between 450° C. and 600° C., and said catalyst/feedstock ratio by weight is between 1 and 30. This invention relates to a catalytic conversion process, especially for heavy feedstock oil to produce higher octane gasoline and an enhanced yield of propylene. More particularly, the invention relates to a process to utilize petroleum oil resources efficiently for decreasing the yield of dry gas and coke significantly.
    Type: Grant
    Filed: August 7, 2008
    Date of Patent: April 15, 2014
    Assignee: China Petroleum & Chemical Corporation
    Inventors: Youhao Xu, Lishun Dai, Longsheng Tian, Shouye Cui, Jianhong Gong, Chaogang Xie, Jiushun Zhang, Jun Long, Zhijian Da, Hong Nie, Jinbiao Guo, Zhigang Zhang
  • Patent number: 8608944
    Abstract: A catalytic conversion process for increasing the light olefin yields, which comprises bringing a hydrocarbon oil feedstock into contact with a catalytic conversion catalyst in a catalytic conversion reactor including one or more reaction zones to carry out the reaction, wherein the hydrocarbon oil feedstock is subjected to the catalytic conversion reaction in the presence of an inhibitor; and separating the reactant vapor optionally containing the inhibitor from the coke deposited catalyst, wherein a target product containing ethylene and propylene is obtained by separating the reactant vapor, and the coke deposited catalyst is stripped and regenerated for recycle use by being returned to the reactor. The process can weaken the further converting reaction of produced light olefins such as ethylene and propylene to 50-70% of the original level by injecting the inhibitor; thereby it can increase the yields of the target products.
    Type: Grant
    Filed: December 19, 2006
    Date of Patent: December 17, 2013
    Assignees: Research Institute of Petroleum Processing SINOPEC, China Petroleum & Chemical Corporation
    Inventors: Zheng Li, Jun Long, Shuandl Hou, Zhijian Da, Chaogang Xie, Jiushun Zhang, Zhanzhu Zhang
  • Patent number: 8597500
    Abstract: A catalytic conversion process to convert inferior feedstock to high quality fuel oil and propylene is disclosed. Inferior feedstock is introduced into first and second reactor zone, wherein first step and second step reactions occur by contacting with catalytic conversion catalyst. Product vapors include fluid catalytic cracking gas oil (FGO) which is introduced into a hydrotreating unit and/or extraction unit to obtain hydrotreated FGO and/or extracted FGO. Hydrotreated FGO and/or extracted FGO returns to the first reactor zone and/or another catalytic cracking unit to obtain propylene and gasoline. The extracted oil of said FGO is rich in double ring aromatics and the raffinate of said FGO is rich in chain alkane and cycloalkane. More particularly, the invention utilizes petroleum oil resources efficiently for decreasing the yield of dry gas and coke significantly.
    Type: Grant
    Filed: March 13, 2009
    Date of Patent: December 3, 2013
    Assignees: China Petroleum & Chemical Corporation, Research Institute of Petroleum Processing, SINOPEC
    Inventors: Youhao Xu, Lishun Dai, Zhigang Zhang, Shouye Cui, Jianhong Gong, Chaogang Xie, Jun Long, Hong Nie, Zhijian Da, Jiushun Zhang, Tao Liu, Anguo Mao
  • Patent number: 8088335
    Abstract: A conversion apparatus for catalytic cracking a hydrocarbon feed to light hydrocarbon comprises at least one riser reactor, a dense bed reactor, a disengager, and a stripper. A dense bed reactor which is separated from disengage, is employed to enforce further cracking hydrocarbon to light olefins, with low methane yield. Moreover, the spent catalysts discharged from the outlet of the dense bed reactor can be introduced into the stripper via a specific catalyst transporting channel, to maintain catalyst concentration in the dense bed reactor that can be advantageous to deeper cracking of the intermediate products to produce more light olefins, particularly propylene.
    Type: Grant
    Filed: March 30, 2007
    Date of Patent: January 3, 2012
    Assignees: China Petroleum and Chemical Corporation, Research Institute of Petroleum Processing, Sinopec
    Inventors: Jun Long, Kejia Xu, Shuandi Hou, Zhijian Da, Chaogang Xie, Jiushun Zhang, Zhanzhu Zhang
  • Patent number: 7923399
    Abstract: A catalyst for converting hydrocarbons includes, based on the weight of the catalyst, 1-60% by weight of a zeolite, 0.1-10% by weight of an assistant catalytic component, 5-98% by weight of a thermotolerant inorganic oxide, and 0-70% by weight of a clay in terms of the oxide. The zeolite is a MFI-structured zeolite-containing phosphor and transition metal(s) or a mixture of the zeolite and a macroporous zeolite, which comprises, based on the weight of the mixture, 75-100% by weight of said MFI-structured zeolite containing phosphor and transition metal(s) and 0-25% by weight of the macroporous zeolite. In terms of the mass of the oxide, the MFI-structured zeolite containing phosphor and transition metal(s) has the following anhydrous chemical formula: (0-0.3)Na2O.(0.3-5.5)Al2O3.(1.0-10)P2O5.(0.7-15)M1xOy.(0.01-5)M2mOn(0-10)RE2O3.(70-97)SiO2??I or (0-0.3)Na2O.(0.3-5)Al2O3.(1.0-10)P2O5.(0.7-15)MpOq.(0-10)RE2O3.
    Type: Grant
    Filed: March 31, 2005
    Date of Patent: April 12, 2011
    Assignees: China Petroleum & Chemical Corporation, Research Institute of Petroleum Processing Sinopec
    Inventors: Jun Long, Zhijian Da, Huiping Tian, Zhenyu Chen, Weilin Zhang, Xingtian Shu, Jiushun Zhang, Yuxia Zhu, Yujian Liu
  • Publication number: 20110000818
    Abstract: A catalytic conversion process can convert inferior feedstock to high quality fuel oil and propylene. A inferior feedstock is introduced into first and second reactor zone, wherein the feedstock carry out first step and second step reactions by contacting with catalytic conversion catalyst. Product vapors separate from spent catalyst by gas-solid separation. The spent catalyst is stripped, regenerated by burning off coke and then returns to reactor. The product vapors are introduced into separation system to obtain propylene, gasoline, diesel, fluid catalytic cracking gas oil (FGO) and other products. The FGO is introduced into hydrotreating unit and/or extraction unit to obtain hydrotreated FGO and/or extracted FGO. Said hyrotreated FGO and/or extracted FGO return to the first reactor zone and/or another catalytic cracking unit to obtain propylene and gasoline. The extracted oil of said FGO is rich in double ring aromatics which are good chemical materials.
    Type: Application
    Filed: March 13, 2009
    Publication date: January 6, 2011
    Applicants: CHINA PETROLEUM & CHEMICAL CORPORATION, RESEARCH INSTITUTE OF PETROLEUM PROCESSING
    Inventors: Youhao Xu, Lishun Dai, Zhigang Zhang, Shouye Cui, Jianhong Gong, Chaogang Xie, Jun Long, Hong Nie, Zhijian Da, Jiushun Zhang, Tao Liu, Anguo Mao
  • Publication number: 20100326888
    Abstract: The present invention provides a catalytic cracking catalyst, processing method and use thereof. When the catalyst is added into a commercial catalytic cracking unit, it has an initial activity of not higher than 80, preferably not higher than 75, more preferably not higher than 70, a self-balancing time of 0.1-50 h, and an equilibrium activity of 35-60. Said method enables the activity and selectivity of the catalyst in the catalytic cracking unit to be more homogeneous and notably improves the selectivity of the catalytic cracking catalyst, so as to obviously reduce the dry gas and coke yields, to sufficiently use steam and to reduce the energy consumption of the FCC unit.
    Type: Application
    Filed: June 24, 2010
    Publication date: December 30, 2010
    Applicants: CHINA PETROLEUM & CHEMICAL CORPORATION, Research Institute of Petroleum Processing, Sinopec
    Inventors: Youhao XU, Shouye CUI, Jun LONG, Jianhong GONG, Zhijian DA, Jiushun ZHANG, Yuxia ZHU, Yibin LUO, Jinlian TANG
  • Publication number: 20100213102
    Abstract: A catalytic conversion process which comprises catalytic cracking reaction of a hydrocarbon feedstock contacting with a medium pore size zeolite enriched catalyst in a reactor, characterized in that reaction temperature, weight hourly space velocity and catalyst/feedstock ratio by weight are sufficient to achieve a yield of fluid catalytic cracking gas oil between 12% and 60% by weight of said feedstock, wherein said weight hourly space velocity is between 25 h?1 and 100 h?1, said reaction temperature is between 450° C. and 600° C., and said catalyst/feedstock ratio by weight is between 1 and 30. This invention relates to a catalytic conversion process, especially for heavy feedstock oil to produce higher octane gasoline and an enhanced yield of propylene. More particularly, the invention relates to a process to utilize petroleum oil resources efficiently for decreasing the yield of dry gas and coke significantly.
    Type: Application
    Filed: August 7, 2008
    Publication date: August 26, 2010
    Inventors: Youhao Xu, Lishun Dai, Longsheng Tian, Shouye Cui, Jianhong Gong, Chaogang Xie, Jiushun Zhang, Jun Long, Zhijian Da, Hong Nie, Jinbiao Guo, Zhigang Zhang
  • Patent number: 7776775
    Abstract: The present invention provides a cracking catalyst, containing a rare-earth Y-zeolite and a support, which is characterized in that the rare-earth content in crystal lattice of the rare-earth Y-zeolite is 4-15 wt % of RE2O3; the original unit cell size is 2.440-2.465 nm; the equilibrium unit cell size of the catalyst after 100% steam-aging treatment at 800° C. for 17 hours is larger than 2.435 nm; the rare-earth atom content in the support is 1.0-8.0 wt % of the support. The present invention also relates to a preparation process for the same catalyst.
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: August 17, 2010
    Assignees: China Petroleum & Chemical Corporation, Research Institute of Petroleum Processing, Sinopec
    Inventors: Jun Du, Zheng Li, Jun Long, Mingde Xu, Zhijian Da, Huiping Tian, Mingyuan He
  • Patent number: 7767611
    Abstract: A modified zeolite beta having an anhydrous chemical formula, by weight % of the oxides, of (0-0.3)Na2O.(0.5-10)Al2O3.(1.3-10)P2O5.(0.7-15)MxOy.(70-97)SiO2, wherein M is one or more transition metal(s) selected from the group consisting of Fe, Co, Ni, Cu, Mn, Zn and Sn, x is the number of the atoms of said transition metal M, and y is a number that meets with the requirement of the oxidation state of said transition metal M, is disclosed. The modified zeolite beta can be used as an active component of a cracking catalyst or additive for catalytic cracking of petroleum hydrocarbons.
    Type: Grant
    Filed: May 31, 2006
    Date of Patent: August 3, 2010
    Assignees: China Petroleum & Chemical Corporation, Research Institute of Petroleum Processing Sinopec
    Inventors: Yibin Luo, Zhijian Da, Ying Ouyang, Li Zhuang, Jun Long, Xingtian Shu, Baoning Zong
  • Publication number: 20090288985
    Abstract: A process for producing light olefins and aromatics, which comprises reacting a feedstock with a catalytic cracking catalyst in at least two reaction zones, wherein the reaction temperature of at least one reaction zone downstream of the first reaction zone is higher than that of the first reaction zone and its weight hourly space velocity is lower than that of the first reaction zone. The spent catalyst is separated from the reaction product vapor, regenerated and then returned to the reactor. The reaction product vapor is separated to obtain the desired products, light olefins and aromatics. This process efficiently produces light olefins such as propylene, ethylene, etc. from heavy feedstocks, wherein the yield of propylene exceeds 20% by weight, and produces aromatics such as toluene, xylene, etc. at the same time.
    Type: Application
    Filed: March 8, 2005
    Publication date: November 26, 2009
    Inventors: Jun Long, Zhijian Da, Dadong Li, Xieqing Wang, Xingtian Shu, Jiushun Zhang, Hong Nie, Chaogang Xie, Zhigang Zhang, Wei Wang
  • Publication number: 20090117017
    Abstract: The present invention relates to a catalytic conversion apparatus, characterized in that said apparatus comprises at least one feed oil cracking riser reactor, a dense bed reactor, a disengager, and a stripper, wherein said stripper locates below said dense bed reactor and communicates directly with the lower part of the dense bed reactor or through a fluid-communicating channel, the outlet of at least one of said riser reactor(s) communicates with the lower part of said dense bed reactor or any part of said fluid-communicating channel, the outlet of said dense bed reactor communicates with the inlet of a gas-solid separating apparatus located in said disengager through said disengager and/or through an optional transporting channel, the catalyst outlet of said disengager communicates with at least one position selected from the upper part of said stripper, any part of said fluid-communicating channel, and the lower part of said dense bed reactor, through at least one catalyst transporting channel.
    Type: Application
    Filed: March 30, 2007
    Publication date: May 7, 2009
    Applicants: China Petroleum and Chemical Corporation, Research Institule of Petroleum Processing,Sinopec
    Inventors: Jun Long, Kejia Xu, Shuandi Hou, Zhijian Da, Chaogang Xie, Jiushun Zhang, Zhanzhu Zhang