High-efficient multi-phase reactor

Abstract

By using a slurry-state bed as a design idea, a slurry-state bed reactor is characterized in that a reactor shell is formed by a flanged cylinder body of standard equipment. The slurry-state bed reactor comprises a diameter-varied shell, an upper closure head, a lower closure head, a bottom air inlet pipe hole, a top gas outlet, a slurry inlet and a slurry outlet; the following parts, including an inner draft tube, a coiled pipe heat exchanger, a gas clamp plate distributor, a gas-rising pipe, a re-distributor and a cyclone separator, are arranged in the shell. The gas is uniformly ejected through the clamp plate distributor, and reaction between the gas and catalyst slurry inside the reactor shell is carried out to obtain a reactant; the reactant is subjected to gas-liquid separation at the upper end of the reactor and then flows out of the gas outlet; slurry which is borne on a free fluid surface flows from the inner part of the draft tube to the downside, flows out of the side surface of the bottom of the draft tube and then carries out reaction with the gas to flow upwards for circulation. According to the slurry-state bed reactor disclosed by the invention, by analyzing a flow state, the matching design of the slurry-state bed is carried out, so that a high-efficient internal recycling effect is achieved.

Description

technical field [0001] The invention belongs to the field of chemical equipment, and relates to a reactor for gas-liquid two-phase or gas-liquid-solid three-phase reaction, such as a gas-liquid reactor and a gas-liquid-solid three-phase slurry bed reactor for a Fischer-Tropsch synthesis process. Background technique [0002] The gas-liquid reactor is relatively simple, and the gas-liquid-solid three-phase slurry bed reactor is used as the design idea. [0003] Slurry bed is a hot spot in the development of reactors in recent years. Its main advantages are: it provides greater flexibility for mixing, heat recovery, and temperature control, and it can apply fine particle catalysts to minimize the internal diffusion effect. The slurry bed reactor uses synthesis gas as the power source for reaction mixing, and the catalyst is suspended in the liquid phase for reaction; since there is no mechanical stirring, it can operate under high pressure without leakage. However, this type ...

AI Technical Summary

Problems solved by technology

The existing slurry bed design is not perfect, some are too complicated, some are too simple to achieve the effect of reaction matching

Moreover, there are still great difficulties in enlarging

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