Lube oil solvent refining performance evaluation device

Abstract

The invention provides a lube oil solvent refining performance evaluation device including an extraction tower, a thermostat, a raffinate stripper, an extract stripper, a steam generator and a solvent recovery tank, the extraction tower is arranged in the thermostat, the front face of thermostat is provided with a visible window, an electrical heating element is arranged in the thermostat, the electric heating element and a temperature controller are connected in an electric connection mode, the upper part of the extraction tower is connected with a solvent inlet pipe and a raffinate outlet pipe, the lower part of the extraction tower is connected with a raw material inlet pipe and an extract outlet pipe, the extraction tower is connected with the raffinate stripper by the raffinate outlet pipe, the extraction tower is connected with the extract stripper by the extract outlet pipe, and the raffinate stripper and a solvent outlet of the upper part of the extract stripper are connected with the solvent recovery tank by pipelines. The lube oil solvent refining performance evaluation device has the advantages of reasonable structure and convenient maintenance and operation, and can evaluate lube oil solvent refining performances under the accurate agent and oil ratio and operating conditions.

Description

technical field [0001] The invention relates to a device for evaluating the solvent refining performance of lubricating oil, in particular to a device capable of evaluating the furfural refining performance of lubricating oil at medium and low temperatures. Background technique [0002] The refining process of lubricating oil furfural is a main process in the production of high-grade lubricating oil. In addition to requiring a certain viscosity, lubricating oil also needs to have good viscosity-temperature properties, anti-oxidation stability, and low carbon residue value. In order to meet the above requirements, most of the polycyclic short side chain aromatic hydrocarbons and colloids must be removed from the lubricating oil raw materials to improve the quality of the lubricating oil, so that the viscosity-temperature properties of the lubricating oil, residual carbon value, oxidation stability, color The degree and so on meet the specification requirements of the product...

AI Technical Summary

Problems solved by technology

[0005] The above-mentioned method and device have the following disadvantages: when using the existing extraction tower to operate, the position of the interface in the tower is difficult to determine, and the actual situation of the fluid in the extraction tower cannot be seen, and the solvent-oil ratio is mainly measured by the flow meters of the solvent pump and the raw material pump. A single measurement method leads to large errors, and it is difficult to accurately determine the operating conditions of the subsequent stripper, resulting in poor refining effect

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