Method and device for solid alkylation reaction

A technology of an alkylation reaction and regeneration device, which is applied in the petrochemical field and can solve the problems that the reaction and regeneration process cannot be carried out continuously.

Active Publication Date: 2006-12-20
CHINA UNIV OF PETROLEUM (BEIJING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to solve the problem that the reaction regeneration process cannot be continuously carried out in the existing solid acid alkylation process, and realize the continuous operation of the catalyst under high activity

Method used

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  • Method and device for solid alkylation reaction
  • Method and device for solid alkylation reaction
  • Method and device for solid alkylation reaction

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] see Figure 8 , the solid acid alkylation reaction regeneration method of this embodiment mainly utilizes the circuit formed by the liquid distributor 1, the riser reactor 2, the fluidized bed reactor 3 and the circulation bed regenerator 4, by opening Figure 8 Middle control valve 29 and control valve 31, close control valve 28, control valve 30 and control valve 32 (see figure 1 ) device of the present invention can be set to this circuit operation. The specific process is that the reaction liquid mixed according to the reaction ratio is divided into two paths and pumped into the liquid distributor 1 by the metering pump from the primary reaction liquid inlet 14 and the secondary reaction liquid inlet 15 respectively, and the reaction liquid flow entered by the primary reaction liquid inlet The catalyst particles are in the circulating bed state, and the reaction liquid flow entering from the secondary reaction liquid inlet is used to change the resistance at the ca...

Embodiment 2

[0050] see Figure 9 , the regeneration method of solid acid alkylation reaction in this embodiment mainly utilizes the circuit composed of liquid distributor 1, riser reactor 2, fluidized bed reactor 3 and moving bed regenerator 5, by opening Figure 9 Control valve 28 and control valve 32 in, close control valve 29, control valve 30 and control valve 31 (see figure 1 ) device of the present invention can be set to this circuit operation. In the specific process, the part where the catalyst particles are subjected to the alkylation reaction in the riser reactor 2 and the fluidized bed reactor 3 is the same as that in the first embodiment. The difference is that after the catalyst particles flow out from the outlet 18 at the bottom of the fluidized bed, they enter the catalyst bed in the moving bed regenerator 5 through the control valve 28 through the connecting pipeline. It should be noted that the length of the catalyst particle inlet line 25 inserted into the moving bed ...

Embodiment 3

[0052] see Figure 10 , The solid acid alkylation reaction regeneration method in this embodiment mainly utilizes a circuit composed of a liquid distributor 1 , a riser reactor 2 , a fluidized bed reactor 3 , a circulating bed regenerator 4 and a moving bed regenerator 5 . by opening Figure 10 Control valve 29, control valve 30 and control valve 32 in the middle, close control valve 28 and control valve 31 (see figure 1 ) device of the present invention can be set to this circuit operation. In the specific process, the reaction part of the alkylation reaction of the catalyst particles in the riser reactor 2 and the fluidized bed reactor 3 is the same as that in the first embodiment. During the regeneration process, the unused catalyst particles at the bottom of the fluidized bed reactor 3 leave from the outlet 18 at the bottom of the fluidized bed, and enter the circulating bed regenerator 4 from the inlet 21 in the middle of the circulating bed regenerator 4 through the co...

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Abstract

The invention relates to a solid alkyl reaction regenerator, which comprises a liquid distributor, a lifter tube reactor, a fluid bed reactor, a circulate bed regenerator and a movable bed regenerator, wherein the liquid distributor is connected to the bottom of lifter tube reactor whose top is connected to the bottom of fluid bed reactor; the lower part of fluid bed reactor via valve tube is connected to the circulate bed regenerator and the movable bed regenerator; the lower part of circulate bed regenerator via the valve tube is connected to the top of movable bed; the lower part of circulate bed regenerator and the bottom of movable bed regenerator via valve tubes are connected to the liquid distributor, to form the cycle loop. The invention also provides a relative method, based on different catalysts, react liquids, and regenerate liquid, to select the reaction- regeneration loop, to meet the application of different solid acid catalyst particles.

Description

technical field [0001] The invention relates to a reaction regeneration method and device, in particular to a solid acid alkylation reaction regeneration method and device, belonging to the field of petrochemical industry. Background technique [0002] The alkylation process uses isoparaffins and low molecular olefins to carry out the alkylation reaction to produce alkylate oil with high octane number, low vapor pressure, high combustion calorific value, and no sulfur, nitrogen and non-hydrocarbon components. It is an ideal gasoline blending components. [0003] The traditional alkylation process began in the 1940s. It uses liquid acid sulfuric acid or hydrofluoric acid as a catalyst. It is characterized by good selectivity, low price, recyclability and continuous activity. However, hydrofluoric acid is highly toxic and seriously endangers human health; sulfuric acid corrodes equipment and produces a large amount of acid residue that pollutes the environment. Therefore, wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J8/24C07C5/13C10G45/00
Inventor 卢春喜聂向锋时铭显
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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