479 patents
Page 4 of 24
Utility
Method and System for Preparing Epoxypropane by Directly Epoxidizing Propylene
26 Oct 23
A method and system for preparing epoxypropane by direct epoxidation of propylene includes the steps of subjecting a mixed gas of a first feed gas and a second feed gas to a contact reaction with a catalyst under reaction conditions of propylene epoxidation to prepare epoxypropane.
Bing SUN, Chenyang ZHAO, Zhe YANG, Hongwei ZHU, Lin WANG, Jie JIANG, Ning SHI, Na LI, Shiqiang WANG, Haozhi WANG
Filed: 26 Jan 21
Utility
Method for Preparing Propylene Oxide by Means of Direct Epoxidation of Propylene
26 Oct 23
A method of preparing epoxypropane by direct epoxidation of propylene includes the steps of contacting a mixed gas consisting of a reaction feed gas and a diluent gas with a catalyst to carry out reaction under reaction conditions of propylene epoxidation to prepare epoxypropane.
Chenyang ZHAO, Bing SUN, Hongwei ZHU, Junjie FENG, Lin WANG, Zhe YANG, Wei XU, Huiyun JIANG, Fei AN, Yan JIN
Filed: 26 Jan 21
Utility
Oil-water Separation Device
19 Oct 23
An oil-water separation apparatus has a housing that contains at least one longitudinal plate member arranged in a longitudinal direction of the housing (10) and inclined relative to a horizontal direction.
Changchao HU, Xiaoxuan XU, Wei DANG, Pengyuan DING, Xingwang WANG, Zhiwei TANG, Wenjie TAN, Lili WANG, Yanxiao SI, Caixia BI
Filed: 30 Oct 20
Utility
Core-shell Molecular Sieve Containing Phosphorus and Metal, Synthesis Thereof, and Application Thereof
19 Oct 23
A phosphorus- and metal-containing core-shell molecular sieve has a core composed of a ZSM-5 molecular sieve, and a shell composed of a β molecular sieve.
Wei LIN, Peng WANG, Lei HAN, Haitao SONG, Xiang ZHOU, Lixia WANG, Zhenbo WANG, Yaoqing GUO
Filed: 24 Jun 21
Utility
Phenol derivative, and preparation process and use thereof
17 Oct 23
Xiaowei Chen, Kecheng Wei, Yuxiang Liang
Filed: 16 Oct 19
Utility
Acrylamide copolymer and preparation method therefor and use thereof
17 Oct 23
Fangyuan Zhao, Zhuo Yi, Xiaochun Wang, Jie Yang
Filed: 17 Dec 19
Utility
Composite adsorbent for separation of ethylbenzene by adsorption distillation and application thereof
12 Oct 23
A composite adsorbent for separating ethylbenzene from C8 arene by an adsorption distillation contains 1-50 mass % of a xylene adsorbent and 50-99 mass % of a carrier liquid.
Siyuan QIE, Wencheng TANG, Ming ZHAO, Longsheng TIAN, Siliang GAO, Weiwei PANG
Filed: 24 Aug 21
Utility
Polypropylene Composition, Preparation Method therefor, and Article Made therefrom
12 Oct 23
A polypropylene composition, a preparation method therefor, and an article made therefrom, the polypropylene composition comprising: (a) 70-95% by weight of a crystalline homo-polypropylene having a isotactic pentad fraction of 96% or more and forming a continuous matrix phase in the polypropylene composition; (b) 5-30% by weight of an ethylene-propylene elastic copolymer containing 20-35% by weight of an ethylene structure unit and 65-80% by weight of a propylene structure unit, and forming a dispersed rubber phase in the continuous matrix phase, such that the rubber phase can at least partially deform under an orientation force and form an orientation state structure, wherein the ratio of melt mass flow rate measured at 230° C. and a 2.16 kg load of the crystalline homo-polypropylene and the polypropylene composition is 0.5-2.0.
Xiaomeng ZHANG, Wenbo SONG, Fasheng ZOU, Huijie HU, Dezhan LI, Lusheng WANG, Mengyao ZHAO, Qi ZHANG, Zhenjie LIU, Hao YUAN
Filed: 20 Aug 21
Utility
Hydrocracking catalyst, preparation method therefor and application thereof
10 Oct 23
Disclosed is a hydrocracking catalyst, a preparation method and an application thereof.
Zhaoji Tang, Yanze Du, Hongfei Fan, Jifeng Wang, Zhengmin Yu, Xiaoyan Sun
Filed: 12 Dec 19
Utility
Catalytic Cracking Additive, Preparation Method Therefor, and Application Thereof
5 Oct 23
A catalytic cracking additive, its preparation and application thereof are provided.
Shanqing YU, Jiasong YAN, Jiexiao ZHANG, Wei LIN
Filed: 17 Jun 21
Utility
Anti-coking Equipment, Preparation Method Therefor and Use Thereof
5 Oct 23
Hongxia WANG, Guoqing WANG, Shenxiang WANG, Jingsheng JIA, Lijun ZHANG
Filed: 22 Jun 21
Utility
Sliding Sleeve Device
5 Oct 23
A sliding sleeve device has an outer cylinder, a circulation hole being provided in the wall of the outer cylinder; and an inner cylinder provided in an inner cavity of the outer cylinder.
Zhimin HOU, Dan HU, Qiang WANG, Yijun ZHOU, Jiang QIAN, Chen CHEN, Tao LIU, Jianfa CI, Wenfeng PANG, Wenjiang TENG
Filed: 10 Jun 21
Utility
Reservoir Parameter Prediction Method and Apparatus Based on Geological Characteristic Constraint, and Storage Medium
5 Oct 23
A method, an apparatus, a computer storage medium and a computer device for geological characteristic constraint-based reservoir parameter prediction are provided.
Kai XU, Zhentao SUN, Shixing WANG, Jinliang TANG, Huilan CAO, Ruyi ZHANG, Xiaoxue ZHENG, Ming YAO
Filed: 30 Jun 21
Utility
Method and system for producing epoxyalkane
3 Oct 23
A method for producing an epoxyalkane includes the step of separating a stream containing an epoxyalkane and an extracting agent in a separation column having a column kettle reboiler.
Song Hu, Shuai Hu, Weisheng Yang
Filed: 30 Nov 18
Utility
Process for making phenol and xylenes
26 Sep 23
Processes for making phenol and xylenes from a phenols-containing feed are described.
Shuguang Zhang, Lubo Zhou
Filed: 4 Feb 19
Utility
Composition, Preparation Method for and Application of Composition, and Self-healing Method for Well Cementing In Oil/gas Field
21 Sep 23
Described are a self-healing composition, and a preparation method for and an application of the composition.
Hongwen LIANG, Gewei PENG, Hailiang ZHANG, Xiaojun MO, Fan YANG, Junhua ZHANG, Xu WANG, Qichun WANG, Min ZENG
Filed: 21 Jul 21
Utility
Process for separating alkylation product, alkylation reaction and separation process, and related apparatus
19 Sep 23
A liquid phase alkylation product from an alkylation reaction unit is introduced into a first heat-exchanger directly or after being pressurized with a pressure pump and heat-exchanged with a vapor phase stream from the column top of a high-pressure fractionating column n, then introduced into a second heat-exchanger and further heated to 100° C.-150° C., then introduced into the high-pressure fractionating column and subjected to fractionation at 2.0 MPa-4.0 MPa, the vapor phase stream from the column top of the high-pressure fractionating column is heat-exchanged with the liquid phase alkylation product to be separated, a liquid phase stream from the column bottom of the high-pressure fractionating column is introduced into a low-pressure fractionating column and subjected to fractionation under at 0.2 MPa-1.0 MPa, a low-carbon alkane is obtained from the column top of the low-pressure fractionating column n, and a liquid phase stream obtained from the column bottom of the low-pressure fractionating column is an alkylation oil product.
Qing Yuan, Junyi Mao, Zhenxing Zhu, Tao Huang, Zhihai Zhao, Yongxiang Li, Lifeng Hu, Xiaojin Tang
Filed: 6 Sep 19
Utility
Polymer Having Dispersing Function, Oil Well Cement Dispersant, and Preparation Method Therefor and Use Thereof
14 Sep 23
A polymer having a dispersing function, a preparation method therefor, and a use thereof as a cement dispersant are provided.
Shiming ZHOU, Xia MIAO, Guangguo YANG, Haoguang WEI, Peiqing LU, Jingnan XIAO, Hongqi YANG, Rengguang LIU, Lei CHEN, Lishuang WANG, Laiyu SANG, Jinkai ZHANG, Yongtao CHU
Filed: 13 Aug 21
Utility
Transalkylation of Alkylated Phenols
14 Sep 23
Transalkylation processes using catalysts comprising three dimensional 12 membered ring zeolites with a combination of small and large pores are described.
Somphonh Peter PHIVILAY, Neelesh RANE, Liwei GUO, Zhenhua ZHOU
Filed: 30 Sep 20
Utility
Coking System and Coking Process
31 Aug 23
A coking system comprises the 1st to the m-th heating units and the 1st to the n-th coke towers, each of the m heating units being in communication with the n coke towers, respectively, each of the n coke towers being in communication with one or more separation towers, respectively, in communication with the m-th heating unit and optionally with the i-th heating unit.
Renqing CHU, Xiangchen FANG, Dan GUO, Yongyi SONG, Jihua LIU, Lianzhong GOU, Dewei JIAO, Yun WU
Filed: 10 May 23