A multi-zone slurry tube reactor

Abstract

The invention discloses a multi-zone slurry tube reactor, which includes a shell, and there are at least two reaction zones in the shell, and any adjacent two reaction zones are provided with a barrier for separating the two and passing through the tubes. For the transverse partition, a central hole is provided in the center of any transverse partition, and any transverse partition is provided with at least one auxiliary hole distributed around the central axis of the central hole to cooperate with the central hole to form a vortex state in the reaction zone. During the chemical reaction, the gas-liquid mixed reactant in the reaction zone rises through the central hole due to its low density, and at the same time, the liquid reactant descends through the auxiliary hole due to its high density, thus forming a rising and falling circulation phenomenon in the reaction zone , and then realize the blocking of the liquid reactant circulating along the entire inner cavity of the shell, so that the liquid in each reaction zone can reach a vortex motion state, and prevent the short circuit and dead angle of the fluid in the shell, thereby preventing the overall back-mixing flow.

Description

technical field [0001] The invention relates to the technical field of chemical equipment, in particular to a multi-zone slurry tube reactor. Background technique [0002] Slurry bed reactors, especially multi-zone slurry tube reactors, are generally accompanied by strong exothermic heat during the chemical reaction, which makes it necessary to add heat exchangers to slurry bed reactors. The heat exchanger is usually fixed at both ends of the reactor in the form of tubes, and the cooling medium flows in from one end of the heat exchanger and flows upward along the tube side, that is, the cooling medium flows in the tubes; the gaseous reactants and slurry reactants are The side of the slurry bed reactor enters the slurry bed reactor and flows upward along the shell side, so that the slurry reactants in the entire slurry bed reactor flow with the gaseous reactants, and chemical reactions occur during the flow. [0003] Take the continuous production of alkyl aluminum chloride...

AI Technical Summary

Problems solved by technology

At the same time, the heat of reaction between aluminum powder and monochloroalkane is very large, and the heat must be removed quickly.

However, although the structure of the existing slurry bed reactor has a heat transfer function, the interior is a whole, and there is strong back-mixing, so that the aluminum powder cannot be distributed in steps in the reactor, and cannot meet the requirement that the export material does not contain aluminum powder. Require

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