Solvent desorption apparatus and process method for silica gel refining and regenerating base oil

A technology of regenerated base oil and process method, which is applied in the field of solvent desorption devices for refining and regenerated base oil with silica gel, which can solve the problems of inability to continue adsorption, inability to remove oil, and low regeneration efficiency of adsorbents, and achieve simple structure and promote blow-off and degreasing, easy to achieve results

Pending Publication Date: 2019-05-03
安徽国孚凤凰科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this method, the adsorbent will be saturated after being used for a period of time and cannot continue to adsorb
For this reason, it is necessary to desorb and remove oil from the saturated adsorbent, but the traditional deoiling operation cannot completely remove the oil inside the adsorbent, and the regeneration efficiency of the adsorbent is not high

Method used

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  • Solvent desorption apparatus and process method for silica gel refining and regenerating base oil
  • Solvent desorption apparatus and process method for silica gel refining and regenerating base oil
  • Solvent desorption apparatus and process method for silica gel refining and regenerating base oil

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Embodiment 1

[0035] Such as Figure 1-2 As shown, a solvent desorption device for refining and regenerated base oil with silica gel includes a reaction tower 1, a gas circulation device and a solvent circulation device. The reaction tower 1 is vertically arranged on a fixed surface, and the interior of the reaction tower 1 is a cavity structure, the reaction tower 1 is provided with several inlets and outlets, including a solvent inlet 13, a silica gel inlet 12 and a gas outlet 11 arranged horizontally at the top of the reaction tower 1 in sequence, and the upper end of the side surface of the reaction tower 1 is provided with a No. 2 outlet. The oil port 14, the bottom of the reaction tower 1 is provided with a No. 1 oil outlet 17, an oil inlet 16 and an air inlet 15 in sequence.

[0036] The gas circulation device includes a gas storage tank 2 arranged on one side of the reaction tower 1. The surface of the gas storage tank 2 is provided with several gas outlet ports and gas inlet ports....

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PUM

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Abstract

The invention relates to solvent desorption apparatus and process method for silica gel refining and regenerating base oil. The solvent desorption apparatus of the silica gel refining and regeneratingbase oil comprises a reaction tower, a gas circulating device and a solvent circulating device; the reaction tower is provided with a plurality of inlets and outlets comprising a solvent inlet, a silica gel inlet and a gas outlet which are transversely formed at the top of the reaction tower in sequence; a second oil outlet is formed at the upper end of the side surface of the reaction tower; anda first oil outlet, an oil inlet and an air inlet are transversely formed at the bottom end of the reaction tower in sequence. The apparatus provided by the invention is provided with the gas circulation device and the solvent circulation device, so that silica gel after adsorption is subjected to solvent refining in the reaction tower for a plurality of times, and base oil adsorbed in the silicagel is removed to the maximum degree; in addition, heated nitrogen is introduced in the soaking process, so that mixing and stirring are facilitated, air stripping and deoiling of the silica gel arepromoted, and regeneration efficiency of the silica gel is improved.

Description

technical field [0001] The invention belongs to the technical field of chemical equipment, and in particular relates to a solvent desorption device and a process method for refining and regenerating base oil through silica gel. Background technique [0002] The traditional technology of regenerating Group II base oil is completed by 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 Group II base oil can be obtained by adsorption and extraction with adsorbents such as silica gel. In this method, the adsorbent will be saturated after being used for a period of time and cannot continue to adsorb. For this reason, it is necessary to desorb and remove oil from the saturated adsorbent, but the traditional deoiling operation cannot completely remove the oil inside the adsorbent, and the regeneration efficiency of the adsorbent is not high. Therefore, the de...

Claims

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Application Information

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IPC IPC(8): B01J20/34
Inventor 李书龙
Owner 安徽国孚凤凰科技有限公司
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