Chinese Academy of Sciences

Dalian Rongkepower Co., Ltd

Uop Lcc

Sabic Global Technolgoies B.v.

Formosa Plastics Corporation

Other

Dalian Institute of Chemical Physics

Tao Zhang

Zhongmin Liu

Mao Ye

Xiangao Wang

Jinling Zhang

Hailong Tang

Jinming Jia

Yinfeng Zhao

Cheng Zhang

Chenggong Li

Hua Li

Mingyuan Zheng

Aiqin Wang

Jing Wang

Shuliang Xu

Jifeng Pang

Yanqiang Huang

Jingguang Chen

Weizhen Li

Na Ji

Tom N Kalnes

Joseph A Kocal

Shenglin Liu

Zhijun Tai

Jibin Zhou

Hui Xing Wang

Xiaodong Wang

Changqing He

Huamin Zhang

Xiangkun Ma

John Qianjun Chen

Talal Khaled Al-Shammari

Yu Jiang

Xi Han

Ying Li

Yuying Shu

Lecong Han

Bin Liu

Song Liu

Kai Huang

Ya Cheng

Hui Wang

Sisi Fan

Jinming Xu

Changzhi Li

Xiong Su

Shuanghe Meng

Yu Chen

Wan-Tun Hung

Honggui Zhao

Yi Zou

Hongdong Jiang

Shan Jiang

Zhenkun Yang

Kuanrong Yi

Jingcai Zhang

Dan Sun

Yu Zhang

Xiaoli Wang

Chin Lien Huang

Wan Tun Hung

Chien Hui Wu

Ming Hsien Wen

Chao Chin Chang

Tsao Cheng Huang

Qiang Guo

Yanhua Zhang

Wan-tun Hung

Lu-Chen Yeh

Tsao-Cheng Huang

Chao-Chin Chang

Ming-Hsien Wen

Ya-Wen Cheng

Chien-Hui Wu

Yu-Cheng Chen

Ming-hung Cheng

Hongmin Duan

Ruiyan Sun

Shuo Al

Chuntian Wu

Zhiqiang Chen

Jingjing Shen

Hongbin Yang

Xiaoli Yang

Aigin Wang

Likun Zhou

Ming-Hung Cheng

Chienhui Wu

Yu Cheng Chen

Ya Wen Cheng

A burner includes a housing, a fan, a burning head and an ignition mechanism. An air inlet of the housing and an input end of the burning head form a pressure equalizing cavity. The ignition mechanism is arranged at an output end of the burning head. The burning head includes a main frame and at least one stable burning isolation strip, an interior of the main frame is divided into at least two ventilation areas by the stable burning isolation strip in a gas channel direction. A plurality of separation mechanisms is arranged in each ventilation area and divide the ventilation area into a plurality of through holes arranged in the gas channel direction, the through holes are used for allowing mixed gas to pass through and strengthening the mixing effect. The burning flame of a burning surface of the main frame can be divided into mutually independent flames by the stable burning isolation strip. The burner can be used in gas stoves, low-nitrogen combustion engines for a gas boiler, gas water heaters and gas heating water heaters.

Burner and applications thereof

A regeneration method of a nitrogen-containing carbon catalyst includes the following steps: roasting the nitrogen-containing carbon catalyst in a nitrogen-containing atmosphere to obtain a regenerated nitrogen-containing carbon catalyst. The method is a universal method, which is suitable for nitrogen-doped carbon catalysts and can be used to regenerate a nitrogen-containing carbon catalyst for producing vinyl chloride (VC) through 1,2-dichloroethane cracking. The method can greatly reduce the production cost of the catalyst and increase the service life of the catalyst, and a regeneration process thereof is fast, simple, and controllable, and does not require high temperatures.

Regeneration method and application of nitrogen-containing carbon catalyst

A coke control reactor, a device for preparing low-carbon olefins from an oxygen-containing compound, and a use thereof are provided. The coke control reactor includes a riser reactor and a bed reactor; the bed reactor includes a bed reactor shell, and the bed reactor shell encloses a reaction zone I, a transition zone, and a gas-solid separation zone I from bottom to top; a bed reactor distributor is arranged in the reaction zone I; a coke controlled catalyst delivery pipe is arranged outside the reaction zone I; an upper section of the riser reactor penetrates through a bottom of the bed reactor and is axially inserted in the bed reactor; and an outlet end of the riser reactor is located in the transition zone. The coke control reactor can control the conversion and generation of coke species in a catalyst.

Coke control reactor, device for preparing low-carbon olefins from oxygen-containing compound, and use thereof

A fluidized bed regenerator, a device for preparing low-carbon olefins, and a use thereof are provided. The fluidized bed regenerator includes a second activation zone, a first activation zone, and a gas-solid separation zone from bottom to top; the second activation zone axially communicates with the gas-solid separation zone; the first activation zone is arranged on a periphery of a junction between the second activation zone and the gas-solid separation zone; the first activation zone is an annular cavity; n baffles are radially arranged in the first activation zone, and the n baffles divide the first activation zone into n first activation zone subzones; and a catalyst circulation hole is formed in each of n−1 of the baffles such that a catalyst entering the first activation zone flows in an annular direction.

Fluidized bed regenerator, device for preparing low-carbon olefins, and use thereof

A regeneration device, a device for preparing low-carbon olefins, and a use thereof are provided. The regeneration device includes a first regenerator and a second regenerator; a first activation zone of the first regenerator is connected to the second regenerator through a pipeline, such that a catalyst in the first activation zone is able to be delivered to the second regenerator; and the second regenerator is connected to a gas-solid separation zone of the first regenerator through a pipeline, such that a catalyst in the second regenerator is able to be delivered to the gas-solid separation zone. The regeneration device can adjust the coke content, coke content distribution, and coke species in a dimethyl ether/methanol to olefins (DMTO) catalyst to control an operation window of the DMTO catalyst, which improves the selectivity for low-carbon olefins and the atomic economy of a methanol-to-olefins (MTO) technology.

Regeneration device, device for preparing low-carbon olefins, and use thereof

A fluidized bed reactor, a device, and a method for producing low-carbon olefins from oxygen-containing compound are provided. The fluidized bed reactor includes a reactor shell, a reaction zone, a coke control zone and a delivery pipe, where there are n baffles arranged in the coke control zone, and the n baffles divide the coke control zone into n sub-coke control zones which include a first sub-coke control zone, a second sub-coke control zone, and an nth sub-coke control zone; at least one catalyst circulation hole is provided on each of the n-1 baffles, so that the catalyst flows in an annular shape in the coke control zone, where n is an integer. The device and method can be adapted to a new generation of DMTO catalyst, and the unit consumption of production ranges from 2.50 to 2.58 tons of methanol/ton of low-carbon olefins.

Fluidized bed reactor, device and method for preparing low-carbon olefins from oxygen-containing compound

The present disclosure includes a system for producing low carbon olefins and/or aromatics from raw material comprising naphtha. The system can include a reaction unit that includes a fast fluidized bed reactor, a stripping unit that includes a stripper, and a regeneration unit. The reactor unit is adapted to allow the catalytic cracking of naphtha and to output reaction unit effluent material (spent catalyst and product gas) into the stripping unit, which is adapted to output product gas. The stripping unit is connected to and in fluid communication with the regeneration unit such that the stripping unit supplies the spent catalyst from the reaction unit to regeneration unit. The regeneration unit is adapted to regenerate the spent catalyst to form regenerated catalyst. The regeneration unit is connected to and in fluid communication with the fast fluidized bed reactor such that, in operation, regenerated catalyst can be sent to the fast fluidized bed reactor of the reaction unit.

System for catalytic cracking of naphtha with mixed spent and regenerated catalyst

Disclosed is a method for partially regenerating a catalyst for methanol and/or dimethyl ether-to-olefin. The method comprises: introducing a mixed gas into a regenerated region containing a catalyst to be regenerated, and subjecting same to a partial regeneration reaction to obtain a regenerated catalyst, wherein the mixed gas contains water vapor and air; and in the regenerated catalyst, the coke content of at least part of the regenerated catalyst is greater than 1%. The method utilizes the coupling of a mixed gas of water vapor and air to activate a deactivated catalyst, selectively eliminate part of a coke deposit in the catalyst to be regenerated, and obtain a partially regenerated catalyst for methanol-to-olefin. Another aspect of the present invention is that further provided is a method for methanol and/or dimethyl ether-to-olefin by using the partially regenerated catalyst for methanol-to-olefin regenerated by means of the method.

Method for partially regenerating catalyst for methanol and/or dimethyl ether-to-olefin and method for methanol and/or dimethyl ether-to-olefin

A fluidized bed reactor includes a main shell and a coke control zone shell; the main shell includes an upper shell and a lower shell; the upper shell encloses a gas-solid separation zone, and the lower shell encloses a reaction zone; the reaction zone axially communicates with the gas-solid separation zone; the coke control zone shell is circumferentially arranged on an outer wall of the main shell; the coke control zone shell and the main shell enclose an annular cavity, and the annular cavity is a coke control zone; n baffles are radially arranged in the coke control zone, and the n baffles divide the coke control zone into n coke control zone subzones, where n is an integer; the coke control zone subzones are provided with a coke control raw material inlet; and a catalyst circulation hole is formed in each of n−1 of the baffles.

Fluidized bed reactor, device, and use thereof

A coke control reactor, and a device and method for preparing low-carbon olefins from an oxygen-containing compound are provided. The coke control reactor includes a coke control reactor shell, a reaction zone I, and a coke controlled catalyst settling zone; a cross-sectional area at any position of the reaction zone I is less than that of the coke controlled catalyst settling zone; n baffles are arranged in a vertical direction in the reaction zone I; the n baffles divide the reaction zone I into m reaction zone I subzones; and a catalyst circulation hole is formed in each of the baffles, such that a catalyst flows in the reaction zone I in a preset manner. A catalyst charge in the present coke control reactor can be automatically adjusted, and an average residence time of a catalyst in the coke control reactor can be controlled by changing process operating conditions.

Coke control reactor, and device and method for preparing low-carbon olefins from oxygen-containing compound

An electrode structure of a flow battery. A density of the vertical tow in the electrode fiber is larger than the density of the parallel tow. In the electrode fiber per unit volume, the quantity ratio of the vertical tow to the parallel tow is at least 6:4. The electrode structure includes an odd number of layers of the electrode fibers, and the porosity of other layers is larger than that of the center layer. The electrode structure includes the vertical tows, so that, the contact area between the outer surface of the electrode and the adjacent component is increased and the contact resistance is reduced; the electrode has good mechanical properties; the contact resistance of such structure is reduced by 30%-50%; and the layers of the electrode have different thickness depending on the porosity. After compression, the layers with optimized thickness have a consistent porosity.

Electrode structure including electrode fiber having higher density of vertical tows to parallel tows, flow battery stack including the same, and sealing structure including sealing gaskets connected by sealing wire

The present application discloses a molecular sieve-based catalyst modification apparatus. The apparatus comprises a feed unit, a modification unitand a cooling unitconnected in sequence; the feed unit comprises a catalyst feed unitand a modifier feed unit, a catalyst and a modifier are introduced into the modification unitrespectively by the catalyst feed unit and the modifier feed unit and are discharged from the modification unit after sufficient reaction in modification unit, and then enter the cooling unitfor cooling. The present application further discloses a use method for the molecular sieve-based catalyst modification apparatus. The use method comprises: introducing a catalyst and a modifier into the modification unitrespectively through the feed unit; wherein the catalyst is modified by the modifier in the modification unit, and then discharged to the cooling unitto cool until the temperature is lower than 50&#xb0; C., and then the cooled modified catalyst is transferred to any storage device.

Molecular sieve-based catalyst modification apparatus, and method

Disclosed is a method for producing low carbon olefins and/or aromatics from feedstock comprising naphtha. The method can include the following steps: a) feeding feedstock comprising naphtha into a fast fluidized bed reactor; b) contacting the feedstock with a catalyst under conditions to produce a gas product and spent catalyst; c) separating the gas product to produce a stream comprising primarily one or more low carbon olefins and/or one or more aromatics; d) transporting the spent catalyst to a regenerator; e) regenerating the spent catalyst in the regenerator to form regenerated catalyst; and f) returning the regenerated catalyst to the fast fluidized bed reactor.

Method for the conversion of feedstock containing naphtha to low carbon olefins and aromatics

The present application discloses a method for partially regenerating a methanol to olefin catalyst, comprising: placing a deactivated methanol to olefin catalyst in a regenerator to carry out a partial regeneration reaction to obtain a regenerated catalyst; at least a portion of the regenerated catalyst has a coke amount of more than 1%. The present application discloses a methanol to olefin process, the methanol to olefin reaction is carried out in a fluidized bed with the use of a methanol to olefin catalyst, wherein at least a portion of the regenerated catalyst has a coke amount of more than 1%.

Method for partially regenerating methanol to olefin catalyst and methanol to olefin process

Disclosed is a catalyst for producing ethylbenzene in one-step by vapor phase alkylation reaction of ethanol and benzene. The catalyst has the following features for the reaction: high alkylation reaction activity, high selectivity of ethylbenzene in an alkylation product, high hydrothermal stability and stable catalytic performance. The catalyst comprises a mesoporous-microporous composite TNU-9 molecular sieve and the silicon to aluminum molar ratio, SiO/AlO, of the meso-microporous composite TNU-9 molecular sieve ranges from 50 to 200.

Catalyst for preparing ethylbenzene from ethanol and benzene, preparation therefor and use thereof

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Dalian, China

Tao Zhang