Hydrotreating process for preparing food-grade white oil

The invention relates to the technical field of food-grade white oil preparation, in particular to a hydrotreating process for food-grade white oil preparation, which comprises a support frame, a slide block is slidably mounted on the side surface of the support frame, a support plate is fixedly connected to the surface of the slide block, and an adjusting assembly is mounted in the support frame. A fixing rod is connected to the right side of the adjusting assembly, a butt joint assembly is installed on the right side of the fixing rod, a capillary viscometer is installed in the butt joint assembly, and a lap joint block is fixedly installed on the surface of the supporting frame. Compared with the prior art, the hydrotreating process has the beneficial effects that the hydrotreating process for preparing the food-grade white oil is improved on the basis of the prior art, and the capillary viscometer can enable the negative pressure assembly to automatically generate negative pressure in the rotating process