Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for preparing individual n-alkanes from Fisher-Tropsch synthesis product

A technology of Fischer-Tropsch synthesis and normal alkanes, which is applied in the treatment of hydrocarbon oil, hydrocarbon oil treatment products, and only multi-stage serial refining process treatment, etc. It can solve problems such as high risk, raw material supply problems, and low safety factor. Achieve the effect of good product quality, simple process flow and low energy consumption

Active Publication Date: 2018-11-23
WUHAN PETROCHEM ENG
View PDF3 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The first and second methods are only applicable to the preparation of symmetrical even-numbered n-alkanes, and there are problems in the supply of raw materials.
The 2nd and 3rd methods have low operational safety factors, and petroleum ether is very easy to erupt in the violent reaction between metal sodium and halogenated alkanes, which is dangerous and costly
This method uses Fischer-Tropsch synthetic light oil as raw material to produce a variety of normal paraffin solvent oil products through hydrofining and separation processes, but cannot obtain C 12 、C 13 、C 14 、C 15 Monomer n-alkanes

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for preparing individual n-alkanes from Fisher-Tropsch synthesis product
  • Method for preparing individual n-alkanes from Fisher-Tropsch synthesis product
  • Method for preparing individual n-alkanes from Fisher-Tropsch synthesis product

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Fischer-Tropsch synthetic oil product logistics 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:

[0039] C 14 / C 15 The rectification tower (A) is a vacuum rectification tower with 50 theoretical plates, the feeding position is the 30th block from the top, the reflux ratio is 0.7, the temperature at the top of the tower is 200°C, the temperature at the bottom of the tower is 274°C, and the pressure is absolute Pressure 60kPa;

[0040] C 12 / C 13 The rectification column (B) is a vacuum distillation column with 46 theoretical plates, the feeding position is the 28th block from the top, the reflux ratio is 0.9, the temperature at the top of the tower is 190°C, the temperature at the bottom of the tower is 237°C, and the pressure is absolute Pressure 70kPa;

[0041] C 11 / C 12 The distillation column (C) is an atmospheric distillation column with 58 theor...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a method for preparing individual n-alkanes from a Fisher-Tropsch synthesis product. According to the method, the hydrofined Fisher-Tropsch synthesis product is utilized as araw material, and the hydrofined Fisher-Tropsch synthesis product is separated by a C14 / C15 rectifying tower, a C12 / C13 rectifying tower, a C11 / C12 rectifying tower, a C13 / C14 rectifying tower, a C16 / C17 rectifying tower, a C15 / C16 rectifying tower and a C17 / C18 rectifying tower to obtain individual n-alkanes of C12, C13, C14, C15, C16, C17 and the like. The method disclosed by the invention has the advantages of simple technological process, low energy consumption, multiple product types and high added value.

Description

technical field [0001] The invention belongs to the technical field of oil conversion, and in particular relates to a method for preparing monomeric normal alkanes from Fischer-Tropsch synthesis products. Background technique [0002] C 12 、C 13 、C 14 、C 15 Other normal alkanes are commonly used intermediates in fine chemicals and important raw materials for the production of many high value-added products. For example, alkylbenzene sulfonate occupies the first place in synthetic surfactants, and the use of branched chain alkyl to generate alkylbenzene sulfonate detergent has poor biodegradability, and it enters rivers and seas, causing great pollution to the environment. . The use of straight-chain alkyl, because its structure is similar to the hydrophobic terminal alkyl in natural oils and fats, has good biochemical degradation performance. N-alkanes can also be used as raw materials for the production of plasticizers, chlorinated paraffins, and petroleum proteins. ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C10G53/02C10G7/06
CPCC10G7/06C10G53/02C10G2400/22
Inventor 俞章森周静
Owner WUHAN PETROCHEM ENG