Oil-coal co-hydrogenation micro-interface enhanced emulsification bed reaction system

Abstract

The invention provides an oil-coal co-hydrogenation micro-interface enhanced emulsification bed reaction system. The system comprises: an emulsification bed reactor used as a reaction chamber in an oil-coal co-hydrogenation reaction process; and a micro-interface generator connected with the emulsification bed reactor, wherein the micro-interface generator is used for crushing the hydrogen into micro-bubbles with the diameter of micron grade in the micro-interface generator in a preset manner before the hydrogen and residual oil-pulverized coal mixed liquid in the hydrogenation reaction process enters the emulsification bed reactor main body, the hydrogen is introduced into the residual oil-pulverized coal mixed solution to increase the phase boundary mass transfer area between the hydrogen and the residual oil-pulverized coal mixed solution in the reaction process and improve the mass transfer efficiency between reaction phases, and the oil-coal co-hydrogenation reaction is enhanced under the conditions of preset temperature and pressure intensity. The problems of low mass transfer rate and influence on the overall reaction rate caused by small phase boundary contact area betweenhydrogen and the residual oil-pulverized coal mixed liquid in the use process of the existing emulsion bed hydrogenation reaction strengthening system are effectively solved.

Description

technical field [0001] The invention belongs to the technical field of reaction strengthening, and in particular relates to an oil-coal co-hydrogenation micro-interface enhanced emulsified bed reaction system. Background technique [0002] Gas-liquid, gas-liquid-solid and other gas-liquid reaction processes are widely found in energy, petrochemical, fine chemical and other fields. For gas-liquid heterogeneous reactions such as oxidation, hydrogenation, and chlorination, the macroscopic reaction rate is generally limited by the mass transfer process. The volumetric mass transfer coefficient of gas-liquid reaction is mainly affected by the mass transfer coefficient and the gas-liquid interface area. Previous studies have shown that the phase boundary area has a greater influence on the volumetric mass transfer coefficient and is easy to control. Therefore, increasing the phase boundary area is regarded as an effective way to increase the gas-liquid macroscopic reaction rate....

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Problems solved by technology

[0004] In view of this, the present invention proposes an oil-coal co-hydrogenation micro-interface enhanced emulsified bed reaction system, which aims to solve the problem of the existing emulsified bed hydrogenation reaction enhanced system due to the large contact area of ​​the phase boundary between the various reaction phases during use. Smaller, resulting in a lower mass transfer rate at the phase boundary, which in turn affects the overall reaction rate

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