Process for the dewaxing of hydrocarbon fractions.

摘要

A process for improving fluidity of hydrocarbon fractions by dewaxing thereof is described. In the process, hydrocarbon fractions are contacted with hydrogen in the presence of a specific type of catalyst, thereby lowering the pour point of the hydrocarbon fraction. The catalyst comprises a specific type of zeolite which is defined by a specific X-ray diffraction pattern (such as that shown in Fig. 1) and which has a mesitylene adsorption not less than 1.8 wt%.