China Petroleum & Chemical Corporation

Research Institute of Petroleum Processing, Sinopec

Boe Technology Group Co., Ltd.

Yongxiang Li

Junyi Mao

Xiaojin Tang

Zhenxing Zhu

Lifeng Hu

Zhihai Zhao

Zheng Liu

Qiang Fu

Tao Huang

Wei Wu

Xingtian Shu

Xuhong Mu

Bin Sun

Shuandi Hou

Qing Yuan

Enquan Wang

Shuzhong Zhang

Chengxi Zhang

Hexin Hu

Lijie Zhang

Lingmin Hu

Shibiao Cheng

The present disclosure generally relates to a liquid-solid radial moving bed reaction apparatus comprising a radial moving bed reactor, a spent catalyst receiver, a catalyst regenerator, and a regenerated catalyst receiver that are successively connected. Also disclosed is a solid acid alkylation process using the liquid-solid radial moving bed reaction apparatus.

Liquid-solid radial moving bed reaction device and solid acid alkylation method

A solid acid catalyst has a macropore specific volume of about 0.30-0.50 ml/g, a ratio of macropore specific volume to specific length of catalyst particles of about 1.0-2.5 ml/(g·mm), and a ratio of specific surface area to length of catalyst particles of about 3.40-4.50 m/mm. The macropore refers to pores having a diameter of more than 50 nm. An alkylation catalyst is based on the solid acid catalyst and can be used in alkylation reactions. The solid acid catalyst and alkylation catalyst show an improved catalyst service life and/or trimethylpentane selectivity when used in the alkylation of isoparaffins with olefins.

Solid acid catalyst, preparation therefor and use thereof

A liquid-solid axial moving bed reaction and regeneration apparatus and a solid acid alkylation process by using the liquid-solid axial moving bed reaction and regeneration apparatus. the liquid-solid axial moving bed reaction and regeneration apparatus comprise: An axial moving bed reactor (), a spent catalyst receiver (), a catalyst regenerator () and a regenerated catalyst receiver () that are successively connected, wherein, a catalyst outlet of the regenerated catalyst receiver () is communicated with a catalyst inlet of the axial moving bed reactor (); Wherein, the axial moving bed reactor () is provided with at least two catalyst beds () arranged up and down, the axial moving bed reactor () is provided with a feed inlet () above each catalyst bed (); A catalyst delivery pipe () is arranged between two adjacent catalyst beds () so that the catalyst can move from top to bottom in the axial moving bed reactor (); A separation component () is provided between two adjacent catalyst beds (), the inside space of the separation component () is communicated with the catalyst delivery pipe (), the separation component () is for separating the stream after the reaction in the upstream catalyst bed from the catalyst, the catalyst obtained by the separation with the separation component () moves down through the catalyst delivery pipe ().

Liquid-solid axial moving bed reaction and regeneration device, and solid acid alkylation method

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&#xb0; C.-150&#xb0; 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.

Process for separating alkylation product, alkylation reaction and separation process, and related apparatus

A process for separating an alkylation product includes introducing a liquid phase alkylation product from an alkylation reaction unit 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, then into a second heat-exchanger and subsequently into the high-pressure fractionating column. 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 a condition of 0.2 MPa-1.0 MPa, a low-carbon alkane is obtained from the column top of the low-pressure fractionating column, and a liquid phase stream obtained from the column bottom of the low-pressure fractionating column is an alkylation oil product.

A NaY molecular sieve with an aluminum-rich surface is prepared using a process that includes the steps of: a. mixing a directing agent and a first silicon source to obtain a first mixture, wherein the directing agent has a molar composition of NaO:AlO:SiO:HO=(6-25):1:(6-25):(200-400); b. mixing the first mixture obtained in the step a with a second silicon source, an aluminum source and water to obtain a second mixture; c. carrying out hydrothermal crystallization on the second mixture obtained in the step b, and collecting a solid product. Calculated as SiO, the weight ratio of the first silicon source to the second silicon source is 1:(0.01-12). The NaY molecular sieve has larger aluminum distribution gradient from the surface to the center of the particle than the conventional molecular sieve.

NaY molecular sieve with an aluminum-rich surface and a process of preparing same

A stereo vision measuring system and measuring method are provided. The system includes a main control device and at least two cooperation devices; each of the cooperation devices is a movable device, and is provided with an image acquiring part; the cooperation device is configured to acquire a first image of a first scene and first image information of the first image and transmit them to the main control device in a calibrating phase, and the cooperation device is further configured to acquire a second image of a second scene and second image information of the second image, and transmit the second image information to the main control device in a measuring phase; the main control device is configured to acquire parameter information of the image acquiring parts in the calibrating phase; the main control device is further configured to obtain three-dimensional reconstruction information of the second scene.

Stereo vision measuring system and stereo vision measuring method

The present invention discloses a process for the ammoximation of carbonyl compounds, wherein a reaction in a liquid reaction system comprising a carbonyl compound, ammonia and hydrogen peroxide is carried out in the presence of a sillicon-containing catalyst, characterized in that a liquid silicon-containing assistant is added to the reaction system so that the silicon concentration in the system reaches a range of between 0.1 and 10000 ppm. In the process according to the present invention, the deactivation of catalyst due to dissolution of silicon in the catalyst can be reduced, thus lifetime of the catalyst extended and the stable operation time elongated.

Process for ammoximation of carbonyl compounds

The present invention discloses a process for regenerating titanium-containing catalysts, characterized in that a deactivated catalyst is treated in an acidic solution having a pH value of &#x2266;3, and then dried and calcined. The process is simple in procedure and can make the catalytic activity, selectivity and stability of the regenerated catalyst be recovered to the level of its fresh catalyst.

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Beijing, China

Yongxiang Li