Alkylation reactor capable of intensifying mass transfer, and alkylation technology method

Abstract

The invention discloses an alkylation reactor, and an alkylation technology method. The alkylation reactor comprises a reactor cylinder, a sealing head, a rotating bed, a feed pipe, a feed distribution pipe, a discharge outlet, a circulating cooling gas inlet, a circulating cooling gas outlet and a circulating cooling gas refrigeration system; the reactor cylinder and the sealing head form a sealed shell, the rotating bed is arranged in the middle of the shell, the feed distribution pipe is arranged at the center of the rotating bed, and communicated with the feed pipe, and the discharge outlet is formed in the lower part of the shell; and a fin assembly is arranged on the radial outer side of the rotating bed, the upper end and the lower end of the fin assembly are respectively communicated with the circulating cooling gas inlet and the circulating cooling gas outlet through an upper circulating cooling gas distribution pipe and a lower circulating cooling gas distribution pipe, the circulating cooling gas inlet and the circulating cooling gas outlet are formed in the shell, and the circulating cooling gas refrigeration system is arranged between the circulating cooling gas inlet and the circulating cooling gas outlet. The alkylation reaction method comprises the following steps: reacting by taking iso-butane and olefin as raw materials through taking the concentrated sulfuric acid as a catalyst. The reaction can be carried out at a low temperature, the acid consumption is low, the product quality is high 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...

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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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