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Alkylation reactor and alkylation reaction method

An alkylation reactor and reaction technology, applied in chemical instruments and methods, chemical methods for reacting liquids with liquids, chemical/physical/physical-chemical stationary reactors, etc., can solve the problems of high investment, poor mixing effect, etc. The problem of large floor space, etc., can improve the reaction efficiency, optimize the alkene ratio, and reduce the investment and floor space.

Active Publication Date: 2019-02-26
SINOPEC ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this type of reactor has poor mixing effect, and requires multiple independent horizontal reactors, which requires high investment and a large footprint

Method used

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  • Alkylation reactor and alkylation reaction method
  • Alkylation reactor and alkylation reaction method
  • Alkylation reactor and alkylation reaction method

Examples

Experimental program
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Effect test

Embodiment 1

[0050] Such as Figure 1-Figure 4 As shown, this embodiment provides an alkylation reactor with a built-in 4-stage mixing-reaction module. Including: shell 1 with an inner diameter of 3800mm and a length of 7400mm, an upper head 2 and a lower head 3, the upper head 2 and the lower head 3 are sealed and welded to the two ends of the shell 1 to form a closed reactor shell 4 groups of mixing-reaction modules 4 with a thickness of 600mm are installed in the shell 1, four DN100 reaction feed inlets 6 are provided on the side of the shell 1 to communicate with each mixing-reaction module, and the upper head 2 is an ellipsoid Type, the top is provided with a DN200 liquid catalyst inlet 5, the lower head 3 is ellipsoidal, and the bottom is provided with a DN250 outlet 7 for the reaction product and liquid catalyst mixture to leave the reactor;

[0051] The mixing-reaction module includes 18 mixing-reaction elements 8, the upper partition 9 and the lower partition 10 are respectively sea...

Embodiment 2

[0059] Same as Example 1, the only difference is that the shape of the first tubular member 11 provided in the mixing-reaction element 8 is an inverted conical tube with a large top diameter and a small diameter at the bottom. The ratio of the upper and lower diameters is 1:0.65, and the inner diameter of the upper part is 80mm. The length of the first tubular member 11 is 350mm, the diameter of the hole is 3mm, and the opening ratio is 21% of the surface area of ​​the tube wall;

[0060] The radial distance of the second liquid passage (the distance between the outer diameter of the first tubular member 11 and the inner diameter of the second tubular member 12) is 57mm in the upper part and 71mm in the lower part; the second tubular member 12 is a metal mesh fired tube with holes The ratio is 18% of the surface area of ​​the tube wall, and the diameter of the second opening 15 of the mixing-reaction element is 100 mm.

[0061] Reaction conditions: the average reaction temperature ...

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Abstract

The invention relates to an alkylation reactor and an alkylation reaction method. The alkylation reactor comprises a mixing-reaction element of a specific structure; in the mixing-reaction element, aliquid catalyst and a reaction feed enter a reaction zone in a second liquid channel in an opposed jetting manner respectively through a first opening and a second opening arranged face to face and then undergo a mixing reaction, so the reaction feed and the liquid catalyst are fully mixed and contacted in the reaction zone; and thus, mixing and reaction efficiency is high, and selectivity and product quality are improved. The alkylation reactor of the invention may be provided with a plurality of mixing-reaction modules containing the mixing-reaction element, so a multistage reactor capable of realizing feeding stage by stage is formed. The alkylation reactor and the method for performing the alkylation reaction therewith may realize multi-stage reactions in one reactor, so an alkane-alkene ratio is optimized, reaction efficiency is enhanced, and the investment and the floor space of the reactor are reduced.

Description

Technical field [0001] The present disclosure relates to the field of petrochemical industry, and in particular to an alkylation reactor and an alkylation reaction method. Background technique [0002] The reaction in the alkylation reactor of the petrochemical industry is carried out under the action of a catalyst. The catalyst is divided into two forms: solid and liquid. The liquid catalyst is usually an acidic ionic liquid. It can be seen from the study of the reaction mechanism that for the alkylation reaction process using liquid catalysts, the reaction is mainly completed at the interface between the liquid phase catalyst and the hydrocarbon reaction feedstock, and the renewal rate of the interface and the ratio of alkanes to olefins near the interface (Alkane ratio) is a key factor affecting the selectivity of the main reaction. In order to achieve higher selectivity of alkylation products, the alkylation reaction requires strong liquid-liquid mixing and a higher reaction...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J19/00B01J19/24B01J14/00C10G50/00
CPCB01J14/00B01J19/0053B01J19/24C10G50/00C10G2300/1081C10G2300/1088C10G2300/70
Inventor 袁忠勋
Owner SINOPEC ENG
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