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Adsorption separation device and method for improving base oil viscosity index

An adsorption separation and viscosity index technology, which is applied in the multi-stage series refining process, etc., can solve problems such as the difficulty of base oil viscosity index, and achieve the effect of improving viscosity index and oxidation stability, low investment and simple process operation.

Inactive Publication Date: 2015-07-22
XINJIANG MODERN PETROCHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides an adsorption separation device and method for increasing the viscosity index of base oil, which overcomes the above-mentioned deficiencies in the prior art, and can effectively solve the problem of difficulty in increasing the viscosity index of base oil

Method used

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  • Adsorption separation device and method for improving base oil viscosity index
  • Adsorption separation device and method for improving base oil viscosity index

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1, this adsorption separation device that improves base oil viscosity index comprises pump 1, adsorption tower 2, fractionation tank 3, buffer tank 4, condenser 5 and recovery tank 6; Adsorption tower 2, fractionation tank 3, buffer tank 4, The condenser 5 and the recovery tank 6 are respectively fixedly installed on the bracket, and the inlet end of the pump 1 is fixedly connected with a first pipeline 7, and the outlet of the condenser 5 is fixedly connected together through the second pipeline 8 and the first pipeline 7, and the pump 1 The outlet of the outlet is fixedly connected together with the lower shell-side inlet of the adsorption tower 2 through the third pipeline 9, and the fourth pipeline 10 and the fifth pipeline 11 are fixedly connected on the top of the adsorption tower 2, and the shell of the fourth pipeline 10 and the adsorption tower 2 The pipe-side inlet of the fifth pipeline 11 is fixedly connected with the pipe-side inlet of the adsorpti...

Embodiment 2

[0021] Embodiment 2, the adsorption separation method that uses the adsorption separation device that improves base oil viscosity index is carried out according to the following steps: the first step, at first the diluent in the second pipeline 8 is added in the first pipeline 7, with the first The crude base oil in line 7 is mixed to reduce its viscosity to 2.0 mm at 40°C 2 / s to 3.5mm 2 / s; In the second step, the steam in the fifth pipeline 11 is passed into the tube in the adsorption tower 2, and the mixed diluent and base oil crude material are delivered to the adsorption tower through the pump 1 and the third pipeline 9 In the shell side of the adsorption tower 2, after being adsorbed by the adsorbent in the shell side of the adsorption tower 2 and exchanging heat with the steam in the tube side of the adsorption tower 2, the temperature reaches 90°C to 130°C to become a vapor-liquid mixed phase; the third step, the vapor The liquid mixed phase enters the fractionating ...

Embodiment 3

[0022] Embodiment 3, the adsorption separation method that uses the adsorption separation device that improves base oil viscosity index is carried out according to the following steps: the first step, at first the diluent in the second pipeline 8 is added in the first pipeline 7, with the first The crude base oil in line 7 is mixed to reduce its viscosity to 2.0 mm at 40°C 2 / s or 3.5mm 2 / s; In the second step, the steam in the fifth pipeline 11 is passed into the tube in the adsorption tower 2, and the mixed diluent and base oil crude material are delivered to the adsorption tower through the pump 1 and the third pipeline 9 In the shell side of the adsorption tower 2, after being adsorbed by the adsorbent in the shell side of the adsorption tower 2 and exchanging heat with the steam in the tube side of the adsorption tower 2, the temperature reaches 90°C or 130°C to become a vapor-liquid mixed phase; in the third step, the vapor The liquid mixed phase enters the fractionati...

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Abstract

The invention relates to the technical field of mixture refining with hydrocarbon as a main and relates to an adsorption separation device and an adsorption separation device method for improving a base oil viscosity index. An adsorption separation device comprises a pump, an adsorption tower, a fractionation tank, a buffer tank, a condenser and a recovery tank, the adsorption tower, the fractionation tank, the buffer tank, the condenser and the recovery tank are respectively and fixedly installed on a support, a first pipeline is fixedly connected with an inlet end of the pump, an outlet of the condenser is fixedly connected with the first pipeline through a second pipeline, and an outlet of the pump is fixedly connected with a lower shell side inlet of the adsorption tower through a third pipeline. According to the adsorption separation device and the adsorption separation method, the use is convenient, purposes of improving base oil viscosity and separating through matched use of the adsorption tower, the fractionation tank, the recovery tank and the condenser are achieved, and the adsorption device has the advantages of being simple in process operation, soft in technological condition, small in investment, recycled in adsorbing materials and free of pollution on environment, and improving the base oil viscosity index and oxidation stability.

Description

technical field [0001] The invention relates to the technical field of refining hydrocarbon-based mixtures, and relates to an adsorption separation device and method for increasing the viscosity index of base oil. Background technique [0002] At present, there are mainly two methods for improving the viscosity of base oil through refining: hydrofining and solvent refining. Hydrofining is to make the base oil react and rebuild under hydrogenation conditions, and convert the undesired components (components with low viscosity index) in the oil into ideal components; increase the viscosity of the base oil by changing the basic composition of the oil The index method is also the most direct way; solvent refining is a method to separate the ideal and unideal components through the different solubility of different solvents to the components of the base oil, thereby increasing the viscosity index of the base oil. Hydrofining cannot be implemented by ordinary small and medium-siz...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G53/08
Inventor 刘锦升林向阳刘勇杨文婷
Owner XINJIANG MODERN PETROCHEM IND
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