Silica gel adsorption deoiling and desorption tower feeding device and process method thereof

Abstract

The invention relates to a silica gel adsorption deoiling and desorption tower feeding device and a process method thereof. The device comprises a desorption tower, a feeding device body and a material circulation device. The device is provided with the feeding device body and the material circulation device, so that silica gel is pumped into the desorption tower by a slurry pump, feeding operations of the silica gel are simplified, a lot of materials are conveniently fed, the working efficiency of the device is improved, raw materials can be recycled, environmental pollution is decreased, cost is reduced, multilayer circulation scrapers and fixed plates are arranged in the desorption tower, so that the silica gel moves in the desorption tower according to an 'S'-shaped route, the stayingtime of the silica gel in the desorption tower is prolonged, and the deoiling efficiency of the silica gel is improved.

Description

technical field [0001] The invention belongs to the technical field of silica gel regeneration, and in particular relates to a deoiling and desorption tower feeding device after silica gel adsorption and a process method thereof. Background technique [0002] At present, the traditional technology of regenerating Group II base oil is accomplished through hydrogenation process, which has disadvantages such as poor safety and stability, high cost, and large investment in equipment. The latest research shows that the regenerated Type II base oil can be obtained by adsorption and extraction with adsorbents such as silica gel. Due to the strong polarity of silica gel, it can adsorb non-ideal components in waste lubricating oil. After silica gel is adsorbed, its surface will generally adhere to Part of the lubricating oil and the gap between the silica gel will also contain some lubricating oil. If the silica gel that absorbs the lubricating oil is directly treated as garbage, it ...

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Problems solved by technology

[0002] At present, the traditional technology of regenerating Group II base oil is completed by hydrogenation process, which has defects such as poor safety and stability, high cost, and large equipment investment.

The latest research shows that the regenerated Type II base oil can be obtained by adsorption and extraction with adsorbents such as silica gel. Due to the strong polarity of silica gel, it can adsorb non-ideal components in waste lubricating oil. After silica gel is adsorbed, its surface will generally adhere to Part of the lubricating oil and the gap between the silica gel will also contain some lubricating oil. If the silica gel that absorbs the lubricating oil is directly treated as garbage, it will not only cause certain pollution to the environment, but also waste resources.

In this method, the adsorbent will be saturated after being used for a period of time and cannot continue to adsorb

At present, the traditional silica gel regeneration method is generally realized by calcination. Although this method is simple, it does not use a scientific and green method to regenerate silica gel, nor does it realize the recycling of resources, and the equipment consumes a lot of energy. , it is difficult to feed materials, and it is impossible to realize a large amount of deoiling operation of silica gel, which is not the most ideal adsorbent regeneration device and method

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