Filling method of n-butene direct hydration reactor

Abstract

The invention provides a filling method of an n-butene direct hydration reactor. The filling method comprises the following steps: opening a plurality of filling ports on the reactor and a discharge valve at the bottom of the reactor; filling the plurality of filling ports with a catalyst respectively from top to bottom to fill the catalyst to corresponding catalyst beds of the filling ports; closing the plurality of filling ports and the discharge valve; filling the reactor with n-butene materials, and allowing the reactor to start working. The filling method provided by the invention effectively solves the problems that the filling method in the prior art requires a large amount of a rinsing agent and dust, and fine particles and impurities in the catalyst accumulate along with the rinsing agent.

Description

technical field [0001] The invention relates to the technical field of petrochemical equipment usage methods, in particular to a filling method for a n-butene direct hydration reactor. Background technique [0002] The direct hydration of n-butene is the most important method to produce sec-butanol at home and abroad. The method mainly uses resin as a catalyst, and n-butene generates sec-butanol through proton catalysis, and the reaction is carried out under three-phase conditions, the reaction temperature is 150-170°C, and the reaction pressure is 5.0-7.0MPa. The molar ratio is about 1:1. [0003] The method has simple technological process, easy product recovery and refining, less three wastes, less corrosion to equipment, and high selectivity of sec-butanol. During actual operation, the n-butene direct hydration reactor is prone to high catalyst bed pressure drop, catalyst breakage and leakage, so that the process circulating water system carries the catalyst, resulting...

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Problems solved by technology

[0006] The main purpose of the present invention is to provide a filling method of n-butene direct hydration reactor, to solve the problem that the filling method in the prior art needs to consume more flushing agent and the dust, finely divided particles and impurities in the catalyst are mixed with the flushing agent. build up to the problem

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