Temperature-adjustable alkylation reactor and alkylation reaction method

An alkylation reactor and reactor technology, applied in chemical/physical/physicochemical nozzle reactors, liquid hydrocarbon mixture production, petroleum industry, etc., can solve the problems of increased side reactions, unsuitable heat release, etc., to achieve Effects of reducing side reactions, increasing octane number, and low reaction temperature

Active Publication Date: 2015-04-29
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
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  • Claims
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Problems solved by technology

This reactor is not suitable for the sulfuric acid alkylation reaction process, because the heat exchange method adopted is the heat extraction method of circulating materials, which is not suitable for the su

Method used

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  • Temperature-adjustable alkylation reactor and alkylation reaction method
  • Temperature-adjustable alkylation reactor and alkylation reaction method
  • Temperature-adjustable alkylation reactor and alkylation reaction method

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Example

[0035] Examples 1~3

[0036] Use as figure 1 In the reactor of the structure shown, the bed of the rotating bed is composed of stainless steel wire mesh packing, the porosity of the bed of the stainless steel wire mesh packing is 0.95, and the specific surface area is 4000m 2 / m 3 , The diameter of the metal wire is 1mm, and the volume of the rotating bed occupies 45% of the total volume of the rotating bed reactor. The stationary bed adopts the same wire mesh packing as the rotating bed, and the thickness of the stationary bed is 50% of the thickness of the rotating bed. Concentrated sulfuric acid with a mass concentration of 95% is used as a catalyst, and isobutane and butene are used as raw materials for alkylation reaction.

[0037] The molar ratio of isobutane to butene is 1:1 to 300:1, preferably 3:1 to 50:1. The acid-to-hydrocarbon volume ratio is 0.1:1 to 5:1, preferably 0.5:1 to 1.5:1. The reaction temperature is -20 to 15°C, preferably -10 to 10°C, and most preferably ...

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Abstract

The invention discloses an alkylation reactor and an alkylation reaction method. The reactor comprises a reactor tube body, closure heads, a revolving bed, a charging pipe, a charge distribution pipe, a discharging opening, a circulating cooling gas inlet, a circulating cooling gas outlet and heat pipe elements, wherein a closed shell body is formed by the reactor tube body and the closure heads, the revolving bed is arranged at the internal middle part of the shell body and is connected with a driving device through a revolving shaft, the charge distribution pipe is arranged at the center of the revolving bed and is communicated with the charging pipe, and the discharging opening is formed in the lower part of the shell body; a sealing member is arranged between the revolving bed and the shell body, the heat pipe elements are arranged at the outer side of the revolving bed and sequentially penetrate through the sealing member and the shell body, the heat pipe elements outside the shell body are sealed with a jacket, a refrigerant inlet and a refrigerant outlet are formed in the jacket, and the circulating cooling gas inlet and the circulating cooling gas outlet are formed in the shell body. According to the alkylation reaction method disclosed by the invention, alkylation reaction is carried out by taking concentrated sulfuric acid as a catalyst and taking isobutane and alkene as raw materials. According to the alkylation reactor and the alkylation reaction method, the alkylation reaction can be carried out at low temperature, the acid consumption is low, and the equipment scale is small.

Description

technical field [0001] The invention relates to an alkylation reactor and an alkylation reaction process, in particular to an alkylation reactor and an alkylation reaction process which adopt isobutane and C3-C5 olefins to catalyze the alkylation reaction. Background technique [0002] With the development of the economy, especially the rapid development of the transportation industry, the emission of vehicle exhaust is one of the main sources of air pollution. Improving the quality of gasoline is the most important way to reduce the pollution of vehicle exhaust. The alkylated oil obtained by the alkylation reaction of isobutane and C3-C5 olefins has the characteristics of no sulfur, high octane number, small difference between the octane number of the research method and the octane number of the motor method, and is a high-quality An important blending component of clean gasoline. [0003] Alkylation reaction is a traditional technology in the field of petroleum refining, ...

Claims

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Application Information

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IPC IPC(8): B01J19/26C10G50/00
CPCB01J19/26B01J2219/00126C10G50/00
Inventor 方向晨彭德强李欣王璐瑶陈建兵王岩孟凡飞陈新
Owner CHINA PETROLEUM & CHEM CORP
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