Liquid acid alkylation reactor and alkylation reaction method

An alkylation reactor and alkylation reaction technology, applied in chemical methods for liquid-liquid reactions, chemical instruments and methods, chemical/physical/physicochemical fixed reactors, etc., can solve the problem of optimization space, etc. problems, to achieve the effect of compact structure, promoting alkylation reaction, and high alkene ratio

Active Publication Date: 2020-03-20
SINOPEC ENG +1
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0007] The above-mentioned existing alkylation reactors are improving the alkene-ene ratio and liquid-liquid mixing efficiency, but there is still room for optimization

Method used

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  • Liquid acid alkylation reactor and alkylation reaction method
  • Liquid acid alkylation reactor and alkylation reaction method
  • Liquid acid alkylation reactor and alkylation reaction method

Examples

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Embodiment

[0069] This example is used to illustrate the liquid acid alkylation reactor of the present disclosure and the method for carrying out liquid acid alkylation using the reactor.

[0070] Such as figure 1 As shown, the liquid acid alkylation reactor includes a liquid acid inlet 1 , a liquid acid distributor 6 , a hydrocarbon inlet 2 , a hydrocarbon feed distributor 3 , a mixing element 4 , and an acid hydrocarbon outlet 5 . Wherein, the hydrocarbon feed distributor 3 is located in the middle and upper part of the reactor, including a main feed pipe 3.1, a feed branch pipe 3.2, and a feed riser pipe 3.3. Distributing holes 3.4 are provided on the feed standpipe 3.3. According to the positions of the distribution holes 3.4 and the mixing elements 4, three groups of premixing units 7 and mixing units 8 are arranged inside the reactor, and the two are arranged in a staggered manner to ensure that the distribution holes 3.4 are located in the premixing units and each premixing unit ...

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Abstract

The invention relates to a liquid acid alkylation reactor and an alkylation reaction method. The reactor comprises a liquid acid inlet (1), a hydrocarbon inlet (2), a hydrocarbon feeding distributor (3), a mixed reaction zone and an acid hydrocarbon outlet (5), wherein the hydrocarbon inlet and the liquid acid inlet are positioned above the mixed reaction zone, the acid hydrocarbon outlet (5) is positioned below the mixed reaction zone, the hydrocarbon feeding distributor comprises a radial distribution part and an axial distribution part, the radial distribution part and the axial distribution part are communicated with each other, the pipeline extending directions of the radial distribution part and the axial distribution part are perpendicular to each other, the radial distribution partis arranged above the mixing reaction zone, the raw material inlet of the radial distribution part is communicated with the hydrocarbon inlet, the axial distribution part comprises a feeding verticalpipe (3.3), the top end of the feeding vertical pipe is communicated with the radial distribution part, the bottom end of the feeding vertical pipe is a free end, the bottom end of the feeding vertical pipe extends into the mixing reaction zone in the axial direction of the reactor, and a plurality of distribution holes (3.4) are formed in the pipe wall of the feeding vertical pipe at intervals in the axial direction. According to the alkylation reactor, in-situ multi-section feeding can be achieved so as to ensure high alkane-olefin ratio.

Description

technical field [0001] The present disclosure relates to the technical field of petrochemical liquid acid alkylation, in particular, to a liquid acid alkylation reactor and an alkylation reaction method. Background technique [0002] The alkylation reactor is under the action of an acidic catalyst, the C in the liquefied gas products of catalytic cracking, hydrocracking and other equipment 4 The reaction produces a high octane alkylate. Compared with other gasoline blending components, alkylate has a high octane number and does not contain aromatics, olefins, sulfur, oxygen and other impurities, and is considered an ideal gasoline blending component. [0003] C 4 The alkylation reaction is a fast reaction process, which requires a large contact area between the acid and hydrocarbon phases; and the main reaction rate to generate alkylated oil is lower than that of C 4 Olefin superposition reaction rate. Therefore, the liquid acid alkylation reactor needs not only to stren...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J19/24C10G50/00B01J14/00
CPCB01J14/00B01J19/24C10G50/00
Inventor 李玉新孙丽丽吴德飞蒋荣兴张立新
Owner SINOPEC ENG
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