Alkylation reactor and alkylation reaction method

Abstract

The invention discloses a sectional feeding alkylation reactor and an alkylation reaction method. The reactor comprises a reactor barrel, seal heads, a partition plate, an upper bed layer, a lower bed layer, a feeding pipe, a feeding distributing pipe, a rotary shaft, a supplementing material inlet, a discharging opening, a circulating cooling gas inlet, a circulating cooling gas refrigerating system and a circulating cool gas outlet. The invention further provides the alkylation reaction method. The method comprises the following steps: as the sectional feeding alkylation reactor is adopted, firstly forming an acidic hydrocarbon emulsion in the upper bed layer from iso-butane and concentrated sulfuric acid; and then carrying alkylation reaction on the acidic hydrocarbon emulsion and mixed hydrocarbon entering from the supplementing material inlet in a lower bed layer rotary bed. According to the alkylation method disclosed by the invention, by taking the concentrated sulfuric acid as a catalyst and the iso-butane and olefin as raw materials, the alkylation reaction is carried out. The alkylation reaction disclosed by the invention can be carried out at a low temperature, so that the reactor is low in acid consumption and small in equipment scale.

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 that adopts isobutane and C3-C5 olefins to feed in stages to catalyze the alkylation reaction. chemical reaction method. 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 ...

AI Technical Summary

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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