公开(公告)号：EP4364838A1

公开(公告)日：2024-05-08

申请号：EP22831472.0

申请日：2022-05-16

申请人： China Petroleum & Chemical Corporation ,  Sinopec Research Institute of Safety Engineering Co., Ltd.

发明人： FENG, Junjie ,  SUN, Bing ,  YANG, Zhe ,  ZHU, Hongwei ,  XU, Wei ,  ZHAO, Chenyang ,  LIU, Yujia

IPC分类号： B01J19/00

CPC分类号： B01J19/00

摘要： The present invention discloses a microreactor (300), which comprises a plurality of mixing units (310) connected in sequence along a longitudinal direction, each of the mixing units (310) comprising a housing (350) in which a flow chamber (330) is formed. An inlet portion (320) and an outlet portion (322) formed on two opposite ends of each mixing unit (310) along the longitudinal direction, respectively, are in communication with the flow chamber (330). The mixing unit (310) further comprises a first blocking portion (311) centrally arranged within said flow chamber (330) along a lateral direction perpendicular to the longitudinal direction, and between the inlet portion (320) and the outlet portion (322), so that a first advancing passage (317), a second advancing passage (318) and a mixing region (319) are formed within the flow chamber (330). The first advancing passage (317) and the second advancing passage (318) are in communication with the mixing region (319). At downstream ends of said first advancing passage (317) and said second advancing passage (318), the microreactor (300) is further provided with auxiliary flow-guiding portions (316) protruding from a first side profile (352) and a second side profile (354) respectively and extending towards but spaced apart from each other.

公开(公告)号：EP4163275A1

公开(公告)日：2023-04-12

申请号：EP21837621.8

申请日：2021-01-26

申请人： China Petroleum & Chemical Corporation ,  Sinopec Research Institute of Safety Engineering Co., Ltd.

发明人： SUN, Bing ,  ZHAO, Chenyang ,  YANG, Zhe ,  ZHU, Hongwei ,  WANG, Lin ,  JIANG, Jie ,  SHI, Ning ,  LI, Na ,  WANG, Shiqiang ,  WANG, Haozhi

IPC分类号： C07D303/14

摘要： The present disclosure relates to the technical field of the preparation of epoxypropane, and particularly to a method and system for preparing epoxypropane by direct epoxidation of propylene. The method comprises: 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, wherein the first feed gas contains oxygen gas and is free or substantially free of hydrogen gas, the second feed gas contains hydrogen gas and is free or substantially free of oxygen gas, the first feed gas and/or the second feed gas contain propylene, at least one of the first feed gas and the second feed gas further comprises a diluent gas. The technical solution of the disclosure can be used for reducing dosage of diluent gas, preferably recycling the tail gas, thereby significantly increasing the conversion rate of propylene without compromising the service life of catalyst.

公开(公告)号：EP4455090A1

公开(公告)日：2024-10-30

申请号：EP22909630.0

申请日：2022-11-22

申请人： China Petroleum & Chemical Corporation ,  Sinopec Research Institute of Safety Engineering Co., Ltd.

发明人： LIU, Yujia ,  ZHAO, Chenyang ,  ZHU, Hongwei ,  SUN, Bing ,  SHI, Ning ,  XU, Wei

IPC分类号： C01B39/08 ,  C01B37/00 ,  B01J29/89

摘要： Provided are a titanium silicate molecular sieve, a nano-gold-loaded titanium silicate molecular sieve catalyst, and a preparation method for and the use of the catalyst. The titanium silicate molecular sieve has a micropore specific surface area of 320-500 m 2 /g, a micropore volume of 0.1-0.4 cm 3 /g, a mesopore specific surface area of 50-100 m 2 /g, a mesopore volume of 0.075-0.1 cm 3 /g, and a particle size of 100-250 nm, wherein the micropore specific surface area accounts for 50-90% of the total specific surface area. The catalyst comprises a titanium silicate molecular sieve carrier and loaded nano-gold, and the catalyst has a micropore volume of 0.06-0.4 cm 3 /g, a micropore specific surface area of 160-450 m 2 /g, a mesopore volume of 0.05-0.08 cm 3 /g, a mesopore specific surface area of 40-85 m 2 /g, and a particle size of 100-250 nm. The preparation method for the catalyst comprises the steps of subjecting a titanium silicate molecular sieve to an alkaline treatment with an aqueous aliphatic amine solution and then loading same with nano-gold particles. The catalyst is used for an olefin epoxidation reaction, a cycloolefin epoxidation reaction, a phenol hydroxylation reaction, and a cyclohexanone ammoximation reaction. By loading nano-gold particles onto a titanium silicate molecular sieve with specific physical property parameters, the high dispersity of nano-gold is achieved; and when the resulting catalyst is used for the gas-phase epoxidation reaction of propylene, a high catalytic activity is obtained, the conversion rate of propylene is increased to 8%-14%, and the selectivity of epoxypropane is increased to 90-99%.

公开(公告)号：EP4163274A1

公开(公告)日：2023-04-12

申请号：EP21838273.7

申请日：2021-01-26

申请人： China Petroleum & Chemical Corporation ,  Sinopec Research Institute of Safety Engineering Co., Ltd.

发明人： ZHAO, Chenyang ,  SUN, Bing ,  ZHU, Hongwei ,  FENG, Junjie ,  WANG, Lin ,  YANG, Zhe ,  XU, Wei ,  JIANG, Huiyun ,  AN, Fei ,  JIN, Yan

IPC分类号： C07D303/04

摘要： The present disclosure relates to the technical field of preparation of epoxypropane, and discloses a method of preparing epoxypropane by direct epoxidation of propylene. The method comprises: 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, wherein the reaction feed gas comprising propylene, oxygen gas and hydrogen gas; at least a portion of the diluent gas is a gaseous olefin. The present disclosure uses gaseous olefin as at least a portion of the diluent gas to perform propylene epoxidation, that can significantly extend service life of the catalyst, effectively reduce the used amount of diluent gas, so as to alleviate the difficulty of subsequent product separation, reduce the energy consumption, and effectively increase the concentration of oxygen gas in the reaction system under the condition of ensuring safety, thereby increase utilization efficiency of feedstock, and improve the reaction selectivity and propylene conversion rate.

公开(公告)号：EP4112547A1

公开(公告)日：2023-01-04

申请号：EP21785231.8

申请日：2021-01-26

申请人： China Petroleum & Chemical Corporation ,  Sinopec Research Institute of Safety Engineering Co., Ltd.

发明人： AN, Fei ,  SUN, Bing ,  LI, Na ,  WANG, Lin ,  SHI, Ning ,  XU, Wei ,  ZHANG, Shucai ,  WANG, Haozhi ,  WANG, Shiqiang ,  FENG, Junjie ,  ZHAO, Chenyang

IPC分类号： C01B32/184 ,  G01N27/12

摘要： The present disclosure relates to the field of materials, and discloses a gas-sensitive material, a preparation method therefore and an application thereof, and a gas sensor using the gas-sensitive material. The gas-sensitive material is a carbon material-metal oxide composite nanomaterial formed by compounding a carbon material and metal oxides, wherein the content of the carbon material is 0.5∼20 wt.% and the content of the metal oxides is 80∼99.5 wt.%; the metal oxides contain tungsten oxide and one or more selected from tin oxide, iron oxide, titanium oxide, copper oxide, molybdenum oxide, and zinc oxide; the metal oxides are formed on the carbon material in the form of nanowires, and the nanowires are tungsten oxide-doped nanowires. The gas-sensitive material has reduced resistance, is capable of responding to various gases at a reduced working temperature, also obviates the need for external heating, implements self-heating simply by Joule heating of a measuring circuit, and has reduced power consumption and increased sensitivity.