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Oil refining method

A refining method and technology for oil products, applied in the treatment of hydrocarbon oil, petroleum industry, hydrotreating process, etc., can solve the problems of little increase in the added value of oil products, high viscosity and poor fluidity, etc. The effect of increasing added value

Active Publication Date: 2022-03-04
ENN SCI & TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The oil produced by coal hydrogasification has the characteristics of light weight and good fluidity. However, since the oil is a mixture of various components, the diversity of composition reduces the market price of oil produced by coal hydrogasification. The market price of oil products In order to improve the economics of the coal hydrogasification process, the oil products produced must be further processed to improve the purity of the main components
[0003] At present, the coal hydrogasification process mainly adopts a simple two-step condensation method to process the oil mixture. Only by cutting the temperature point, the oil is roughly divided into crude pyrene oil and crude benzene oil. The purity of pyrene and benzene is about 60%-70%. The purity is relatively low, and the added value of the oil is not much improved. At the same time, the crude pyrene oil contains more heavy oil, which has high viscosity and poor fluidity. Continuous collection is a problem.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] figure 1 A flow chart of the steps of the oil refining method according to the embodiment of the present invention is shown. Such as figure 1 Shown, this oil refining method comprises the steps:

[0042] S01), separating and refining the mixed oil with multiple components step by step to obtain benzene oil and naphthalene oil with preset purity, and obtain heavy component oil.

[0043] Specifically, the composition of the oil produced by coal hydrogasification is shown in the table below, which is mainly a mixture of benzene, naphthalene, pyrene, anthracene, phenanthrene, fluorene, toluene, and xylene. Since the hydrogasification oil product is high-pressure and high-temperature steam of oil-water mixture at the initial stage, it is inevitable to add a small amount of water to the separated mixed oil product during the cooling collection and oil-water separation process. There is an impact on the purity of the final product after refining, and the mixed oil must be d...

Embodiment 2

[0069] figure 1 A flow chart of the steps of the oil refining method according to the embodiment of the present invention is shown. Such as figure 1 Shown, this oil refining method comprises the steps:

[0070] S01), separating and refining the mixed oil with multiple components step by step to obtain benzene oil and naphthalene oil with preset purity, and obtain heavy component oil.

[0071] Specifically, the composition of the oil produced by coal hydrogasification is shown in Table 1, which is mainly a mixture of benzene, naphthalene, pyrene, anthracene, phenanthrene, fluorene, toluene, and xylene. Since the hydrogasification oil product is high-pressure and high-temperature steam of oil-water mixture at the initial stage, it is inevitable to add a small amount of water to the separated mixed oil product during the cooling collection and oil-water separation process. There is an impact on the purity of the final product after refining, and the mixed oil must be dehydrate...

Embodiment 3

[0095] figure 1 A flow chart of the steps of the oil refining method according to the embodiment of the present invention is shown. Such as figure 1 Shown, this oil refining method comprises the steps:

[0096] S01), separating and refining the mixed oil with multiple components step by step to obtain benzene oil and naphthalene oil with preset purity, and obtain heavy component oil.

[0097] Specifically, the composition of the oil produced by coal hydrogasification is shown in Table 1, which is mainly a mixture of benzene, naphthalene, pyrene, anthracene, phenanthrene, fluorene, toluene, and xylene. Since the hydrogasification oil product is high-pressure and high-temperature steam of oil-water mixture at the initial stage, it is inevitable to add a small amount of water to the separated mixed oil product during the cooling collection and oil-water separation process. There is an impact on the purity of the final product after refining, and the mixed oil must be dehydrate...

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Abstract

The invention relates to an oil refining method, which comprises: step 1: separating and refining mixed oil with various components step by step to obtain benzene oil and naphthalene oil with preset purity, and obtain heavy The heavy component oil; step 2: subjecting the obtained heavy component oil to hydrogenation upgrading treatment to obtain various oil and gas products, thereby realizing the lightening treatment of the heavy component oil. The oil refining method refines the mixed oil, and the mixed oil is dehydrated, separated and refined to obtain benzene oil and naphthalene oil with high purity, and then the heavy components are hydrogenated and lightened, which greatly improves the The added value of the oil obtained by hydrogasification further improves the overall economics of the oil and the economics of the coal hydrogasification process.

Description

technical field [0001] The invention relates to the technical field of oil product production, and more specifically, to an oil refining method. Background technique [0002] The oil produced by coal hydrogasification has the characteristics of light weight and good fluidity. However, since the oil is a mixture of various components, the diversity of composition reduces the market price of oil produced by coal hydrogasification. The market price of oil products In order to improve the economy of coal hydrogasification process, the oil products produced must be further processed to improve the purity of the main components. [0003] At present, the coal hydrogasification process mainly adopts a simple two-step condensation method to process the oil mixture. Only by cutting the temperature point, the oil is roughly divided into crude pyrene oil and crude benzene oil. The purity of pyrene and benzene is about 60%-70%. The purity is low, and the added value of the oil product i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G67/14
CPCC10G67/14
Inventor 马丽荣郑征
Owner ENN SCI & TECH DEV