Fine separation method and system of crude Fischer-Tropsch wax

A Fischer-Tropsch wax and fine separation technology, applied in separation methods, distillation separation, chemical instruments and methods, etc., can solve the problems of high risk, high melting point Fischer-Tropsch wax cannot be further separated, and the product use effect is not good.

Inactive Publication Date: 2019-07-30
李振山 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

And this invention just carries out rough separation to Futuo synthetic product oil, obtains two kinds of high melting point wax products, does not accomplish fine separation
[0005] Due to the unreasonable design of the existing separation method and system, the

Method used

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  • Fine separation method and system of crude Fischer-Tropsch wax
  • Fine separation method and system of crude Fischer-Tropsch wax
  • Fine separation method and system of crude Fischer-Tropsch wax

Examples

Experimental program
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Embodiment 1

[0067] Embodiments of the present invention are further described below in conjunction with accompanying drawings:

[0068] Such as figure 1As shown, the fine separation system of the Fischer-Tropsch wax crude product of the present invention comprises a Fischer-Tropsch wax crude product raw material storage tank 1, a primary separation system, a secondary separation system, a three-stage separation system and a four-stage separation system; The crude raw material storage tank 1 is connected to the thin-film evaporator 3 in the primary separation system through pipelines, and the 1# heavy phase collection tank 5 in the primary separation system is connected to the primary short-path distiller 8 in the secondary separation system through pipelines The 2# heavy phase collection tank 10 in the secondary separation system is connected with the secondary short-path distiller 12 in the tertiary separation system through pipelines, and the 3# heavy phase collection tank 14 in the ter...

Embodiment 2

[0095] The refined separation system of the Fischer-Tropsch wax crude product used in Example 2 is the same as that in Example 1.

[0096] The fine separation method of the Fischer-Tropsch wax crude product described in present embodiment 2, specifically as follows:

[0097] The raw material is Fischer-Tropsch wax crude product with high melting point, the drop melting point is between 85-100°C, the normal paraffin content is over 85%, and the carbon number distribution is between C15-C85.

[0098] Fischer-Tropsch wax raw material enters the primary separation system and is separated in the thin film evaporator to obtain 1# light phase product and 1# heavy phase product of C15-C32, and the 1# heavy phase product enters the secondary separation system. Separation is carried out in the distiller to obtain 2# light phase products and 2# heavy phase products of C17-C40. The 2# heavy phase products enter the three-stage separation system and are separated in the secondary short-pat...

Embodiment 3

[0106] The refined separation system of the Fischer-Tropsch wax crude product used in Example 3 is the same as that in Example 1.

[0107] The fine separation method of the Fischer-Tropsch wax crude product described in present embodiment 3, specifically as follows:

[0108] The raw material is Fischer-Tropsch wax crude product with high melting point, the dropping melting point is between 85-100°C, the normal paraffin content is over 85%, and the carbon number distribution is between C13-C90.

[0109] Fischer-Tropsch wax crude raw material enters the primary separation system and is separated in the thin film evaporator to obtain 1# light phase product and 1# heavy phase product of C13-C35, and the 1# heavy phase product enters the secondary separation system. Separation is carried out in the distiller to obtain 2# light phase product and 2# heavy phase product of C20-C45, and the 2# heavy phase product enters the three-stage separation system and is separated in the secondar...

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Abstract

The invention relates to a fine separation method and system of crude Fischer-Tropsch wax, and belongs to the technical field of Fischer-Tropsch wax cutting equipment. The raw materials of the crude Fischer-Tropsch wax enter a first-stage separation system and are separated in a thin film evaporator to obtain a No.1 light phase product and a No.1 heavy phase product; the No.1 heavy phase product enters a second-stage separation system and is separated in a first-stage short-path distiller to obtain a No.2 light phase product and a No.2 heavy phase product; the No.2 heavy phase product enters athird-stage separation system and is separated in a second-stage short-path distiller to obtain a No.3 light phase product and a No.3 heavy phase product; and the No.3 heavy phase product enters a fourth-stage separation system and is separated in a third-stage short-path distiller to obtain a No.4 light phase product and a No.4 heavy phase produce. The separation method and the separation systemcan realize fine separation of the crude Fischer-Tropsch wax, have reasonable system design, can obtain Fischer-Tropsch wax with different melting point brands, meet different market requirements, have a simple technical process and realize industrial production.

Description

technical field [0001] The invention relates to a fine separation method and system for crude Fischer-Tropsch wax, belonging to the technical field of Fischer-Tropsch wax cutting equipment. Background technique [0002] Fischer-Tropsch synthesis (Fischer–Tropsch process), also known as F-T synthesis, is a process that synthesizes liquid hydrocarbons or hydrocarbons (hydrocarbon) using synthesis gas (a mixed gas of carbon monoxide and hydrogen) as a raw material with a catalyst and under appropriate conditions. It was developed in 1925 by German chemists Franz Fischer and Hans Tropsch at the Max Planck Institute for Coal Research in Mülheim an der Ruhr. [0003] The Fischer-Tropsch synthetic oil is produced from coal through the Fischer-Tropsch synthesis process, and the Fischer-Tropsch synthetic oil is hydrotreated by a catalytic hydrogenation device, and the normal paraffin content reaches more than 90%, and the naphtha is roughly separated by an atmospheric distillation to...

Claims

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Application Information

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IPC IPC(8): C10G7/00B01D3/14B01D1/22
CPCB01D1/22B01D3/143B01D3/146B01D3/148C10G7/00C10G2300/1022
Inventor 李振山廖荣凯
Owner 李振山
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