Fixed-bed reactor for isoparaffin synthesis, multi-stage material inlet equipment used for reactor and method for synthesizing isoparaffin

Abstract

The invention relates to a fixed-bed reactor for isoparaffin synthesis, multi-stage material inlet equipment used for the reactor and a method for synthesizing an isoparaffin. The multi-stage materialinlet equipment comprises an upper bed layer supporting member, a lower bed layer fluid distribution member, a material inlet distribution tube, and a fluid collection plate and a fluid distributionplate arranged between the upper bed layer supporting member and the lower bed layer fluid distribution member, and the fluid collection plate is located above the fluid distribution plate; and fluidmixing chambers pass through the fluid collection plate and are fixed to the fluid collection plate, each fluid mixing chamber is provided with one corresponding fixed shaft which passes through the fluid mixing chamber from the top to the bottom and is fixed to the fluid distribution plate, and one spiral blade is fixed on the fixed shaft of each fluid mixing chamber. The multi-stage material inlet equipment provided by the invention can fully mix fluids, improve fluid distribution uniformity, prolong catalyst service life, reduce process energy consumption, and optimize product distributionof the isoparaffin synthesis.

Description

technical field [0001] The invention relates to a fixed-bed isoparaffin synthesis reactor, multi-stage feeding equipment and a method for synthesizing isoparaffin. Background technique [0002] Currently, one of the most important tasks of the refining industry is to provide clean and efficient transportation fuels. As an important transportation fuel, gasoline is widely used in transportation and other industries. With the increase of gasoline consumption and increasingly stringent environmental protection standards, how to solve the problem of producing clean and efficient gasoline has become a hot topic of research and discussion. [0003] Under the action of strong acid, the technology of generating alkylate oil from isoparaffins (mainly isobutane) and olefins (C3-C5 olefins) provides the possibility for clean production of gasoline. Alkylated oil has a high octane number and low vapor pressure, mainly composed of saturated hydrocarbons, and does not contain sulfur, ni...

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Problems solved by technology

[0005] In summary, the current fixed-bed isoparaffin synthesis equipment and technology have the following problems that need to be improved: (1) single-stage feed, the ratio of alkanes to olefins in the reactor is too high, and the energy consumption is large; (2) the catalyst is volatile Live, the reactor operation cycle is short; (3) The mixing and distribution effect of multi-stage feeding equipment is general

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