关键词: 柴油加氢精制装置, 微界面, 强化传质, 试验研究, 工业应用, 微气泡, 乳化液, 反应压力

Abstract:

In recent years, more and more attention has been paid to the application of mass transfer intensification technology of multiphase reaction system in chemical industry. The microinterface mass transfer intensification technology effectively adjusts the geometrical dimensions of gas-liquid, gas-liquid-liquid and gas-liquid-solid interfaces from millimeter-centimeter level to micron level, greatly improves the area of phase boundary, and realizes mass transfer and reaction intensification. The slow reaction system which is controlled by mass transfer, such as diesel hydrogenation, is very suitable for using the microinterface mass transfer intensification technology. This paper introduces the industrial application data of diesel hydrorefining unit modified by microinterface mass transfer intensification technology and the latest pilot test data of the application of microinterface mass transfer intensification technology to diesel hydrogenation. Compared with the traditional diesel hydrogenation process, after adopting microinterface mass transfer intensification, the feedstock that can be processed by the unit is obviously inferior, the desulfurization rate reaches 98.4%, the reaction efficiency increases by more than 30%. The energy consumption and material consumption are reduced by 10%. The pilot test data shows that the reaction pressure can be reduced by 30% when producing Guo Ⅵ diesel blending components.

Key words: diesel hydrorefining unit, microinterface, mass transfer intensification, experimental study, industrial application, microbubble, emulsion, reaction pressure