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Method for producing n-alkane solvent oil from Fischer-Tropsch synthetic oil

A technology for Fischer-Tropsch synthetic oil and n-alkane, which is applied in the treatment of hydrocarbon oil, petroleum industry, hydrotreating process, etc., can solve the problem of inability to obtain n-alkane solvent oil, etc., and achieves various models, simple process flow and high quality. high effect

Active Publication Date: 2015-09-16
YANKUANG ENERGY R&D CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method uses Fischer-Tropsch synthetic wax as raw material, adopts multi-step hydrofinishing and hydroisomerization combined process, and its product cannot obtain normal paraffin solvent oil

Method used

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  • Method for producing n-alkane solvent oil from Fischer-Tropsch synthetic oil
  • Method for producing n-alkane solvent oil from Fischer-Tropsch synthetic oil
  • Method for producing n-alkane solvent oil from Fischer-Tropsch synthetic oil

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Experimental program
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Effect test

Embodiment 1

[0054] Fischer-Tropsch synthetic light oil stream 1, its properties are shown in Table 1, enters technical process according to the method of the present invention, the implementation condition of each step is:

[0055] Fractionation column A has a theoretical plate number of 40, a reflux ratio of 3, a feeding position of the 20th plate from the top, a tower top temperature of 110°C, and a tower bottom temperature of 268°C;

[0056] Hydrofining unit B uses Ni-W / Al 2 o 3 Catalyst, the reaction temperature is 350°C, the pressure is 6.5MPa, the volume space velocity is 1, and the light oil ratio is 800;

[0057] The theoretical plate number of the degassing tower C is 30, the feeding position is the 15th plate from the top, the reflux ratio is 3, under normal pressure, the temperature at the top of the tower is -4.1°C, and the temperature at the bottom of the tower is 113.1°C;

[0058] C 6 / C 7 The theoretical plate number of the cutting tower D is 30, the feeding position is...

Embodiment 2

[0068] Fischer-Tropsch synthetic light oil stream 1, its properties are shown in Table 1, enters the technical process described in this method, and the implementation conditions of each step are:

[0069] Fractionation column A has a theoretical plate number of 20, a reflux ratio of 6, a feeding position of the 10th plate from the top, a tower top temperature of 112°C, and a tower bottom temperature of 267°C;

[0070] Hydrofining unit B uses Ni-W / Al 2 o 3 Catalyst, the reaction temperature is 330°C, the pressure is 3MPa, the volume space velocity is 1, and the light oil ratio is 600;

[0071] The theoretical plate number of the degassing tower C is 20, the feeding position is the 10th plate from the top, the reflux ratio is 5, under normal pressure, the temperature at the top of the tower is -4.1°C, and the temperature at the bottom of the tower is 113.1°C;

[0072] C 6 / C 7 The theoretical plate number of the cutting tower D is 20, the feeding position is the 10th plate ...

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Abstract

The invention relates to a method for producing n-alkane solvent oil from Fischer-Tropsch synthetic oil. According to the method, low-temperature Fischer-Tropsch synthetic light oil is adopted as a raw material, and is processed through upgrading and distillation separation processes with a fractionation tower, hydro-finishing, a degassing tower, a C6 / C7 cutting tower, a C5 / C6 cut tower, a C10 / C11 cutting tower, a C8 / C9 cutting tower, a C7 / C8 cutting tower, a C9 / C10 cutting tower, a C13 / C14 cutting tower, and a C17 / C18 cutting tower; such that various types of solvent oils such as n-pentane-rich, #6, #120, #140, #200, #D30, #D40, #D65, #D100 and #D120 solvent oils can be obtained. Compared to prior arts, all products produced with the method are n-alkane solvent oils. The method has the advantages of simple process flow, more produced solvent oil types, high solvent oil quality, and the like.

Description

technical field [0001] The invention relates to a method for producing solvent oil, in particular to a method for producing normal paraffin solvent oil from Fischer-Tropsch synthetic oil. Background technique [0002] Solvent oil products are one of the five major categories of petroleum products. They are used in the production of coatings and paints, edible oil processing, printing inks, leather, pesticides, rubber, cosmetics, spices, chemical polymerization, medicine and IC electronic components produced by petroleum processing. A light oil for cleaning and other aspects. The use of mineral spirits is very extensive and is closely related to people's basic necessities of life. [0003] According to the boiling range, solvent oil can be divided into three categories: low boiling point solvent oil, such as No. 6 solvent oil, with a boiling range of 60-90°C; medium boiling point solvent oil, such as rubber solvent oil (No. 80-120°C; high-boiling solvent oils, such as paint...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G67/14
Inventor 孙启文杨正伟张宗森孙海超
Owner YANKUANG ENERGY R&D CO LTD
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