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Alkylation reactor and alkylation reaction method

An alkylation reactor and reactor technology, applied in chemical instruments and methods, chemical/physical/physical-chemical nozzle reactors, chemical/physical/physical-chemical processes, etc., can solve the problem of increasing side reactions, unsuitable discharge Heat and other problems, to achieve the effect of reducing side reactions, good reaction effect, and low reaction temperature

Active Publication Date: 2015-04-29
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
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  • Application Information

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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 sulfuric acid alkylation reaction with large exothermic heat. The liquid storage tank at the lower part of the reactor and The use of reaction material circulation operation mode will increase the side reaction

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

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Embodiment 1～3

[0038] use as figure 1 In the reactor with the structure shown, the bed of the rotating bed is made of stainless steel mesh packing, the bed porosity of the stainless steel mesh packing is 0.95, and the specific surface area is 4000m 2 / m 3 , the wire diameter is 1mm, and the volume of the rotating bed accounts for 45% of the total volume of the rotating bed reactor. The static bed uses the same wire mesh filler as the rotating bed, and the thickness of the static bed is 50% of the thickness of the rotating bed. The alkylation reaction is carried out using concentrated sulfuric acid with a mass concentration of 95% as a catalyst and isobutane and butene as raw materials.

[0039] The molar ratio of isobutane to butene is 1:1-300:1, preferably 3:1-50:1. The volume ratio of acid to hydrocarbon is 0.1:1~5:1, preferably 0.5:1~1.5:1. The reaction temperature is -20-15°C, preferably -10-10°C, most preferably -5-5°C. The reaction pressure is 0.2~1.5MPa, preferably 0.3~0.8MPa. T...

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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 refrigeration system and a circulating cooling gas outlet, wherein a closed reactor shell body is formed by the reactor tube body and the closure heads, and the revolving bed is vertically located at the internal middle part of the shell body; a static bed layer is arranged at the radial outer side of the revolving bed, and a suitable gap exists between the static bed layer and the revolving bed; a sealing member is arranged between the upper part of the revolving bed and the reactor shell body, the upper part of the revolving bed and the sealing member are of rotatable connection, the circulating cooling gas inlet and the circulating cooling gas outlet are respectively formed in the shell body at the upper and lower sides of the sealing member, and the circulating cooling gas refrigeration system is located between the circulating cooling gas inlet and the circulating cooling gas outlet. 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 method, in particular to an alkylation reactor and an alkylation reaction method 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, ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J19/26C10G50/00
CPCB01J19/02B01J19/26B01J2219/0204C10G50/00
Inventor 王璐瑶彭德强齐慧敏李欣陈新王岩孟凡飞陈建兵
Owner CHINA PETROLEUM & CHEM CORP
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