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A rectification process for separation of Fischer-Tropsch synthesis products

A Fischer-Tropsch synthesis and product technology, applied in the field of rectification technology, to achieve the effect of broad prospects for deep processing, broad prospects for deep processing of products, and clear product fractions

Active Publication Date: 2019-09-10
SHANXI INST OF COAL CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of separating and upgrading the waxy oil of Fischer-Tropsch synthesis products, the present invention provides a rectification method for the separation of Fischer-Tropsch synthesis products that can prepare fuel oil, base lubricating oil and various petrochemical products, and has a high product recovery rate. craft

Method used

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  • A rectification process for separation of Fischer-Tropsch synthesis products
  • A rectification process for separation of Fischer-Tropsch synthesis products
  • A rectification process for separation of Fischer-Tropsch synthesis products

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Primary cooler 1: operating temperature 130°C, operating pressure 3MPa.

[0048] Primary separator 2: adiabatic operation, temperature 130°C, operating pressure 3MPa.

[0049] Secondary cooler 3: operating temperature 40°C, operating pressure 3MPa.

[0050] Secondary separator 4: operating temperature 40°C, adiabatic operation, operating pressure 3MPa.

[0051] Tertiary cooler 5: operating temperature 5°C, operating pressure 3MPa.

[0052] Tertiary separator 6: the operating temperature is 5°C, and the operating pressure is 3MPa.

[0053] Condenser 8 and reflux tank 9: the operating temperature is 60°C and the operating pressure is 1.5MPa.

[0054] Reboiler 10: operating temperature 230°C, operating pressure 1.68MPa.

[0055] Condenser 12 and reflux tank 13: the operating temperature is 45°C, and the operating pressure is 1MPa.

[0056] Reboiler 14: operating temperature 280°C, operating pressure 1.12MPa.

[0057] Condenser 16 and reflux tank 17: the operating tem...

Embodiment 2

[0069] Primary cooler 1: operating temperature 135°C, operating pressure 4MPa.

[0070] Primary separator 2: adiabatic operation, temperature 150°C, operating pressure 4MPa.

[0071] Secondary cooler 3: the operating temperature is 45°C and the operating pressure is 4MPa.

[0072] Secondary separator 4: operating temperature 45°C, adiabatic operation, operating pressure 4MPa.

[0073] Tertiary cooler 5: operating temperature 5°C, operating pressure 4MPa.

[0074] Tertiary separator 6: the operating temperature is 5°C, and the operating pressure is 4MPa.

[0075] Condenser 8 and reflux tank 9: the operating temperature is 79°C and the operating pressure is 2.5MPa.

[0076] Reboiler 10: operating temperature 250°C, operating pressure 2.75MPa.

[0077] Condenser 12 and reflux tank 13: the operating temperature is 47°C and the operating pressure is 1MPa.

[0078] Reboiler 14: operating temperature is 281°C, operating pressure is 1.15MPa.

[0079] Condenser 16 and reflux tank...

Embodiment 3

[0090] Primary cooler 1: operating temperature 138°C, operating pressure 5MPa.

[0091] Primary separator 2: adiabatic operation, temperature 138°C, operating pressure 5MPa.

[0092] Secondary cooler 3: operating temperature 47°C, operating pressure 5MPa.

[0093] Secondary separator 4: operating temperature 47°C, adiabatic operation, operating pressure 5MPa.

[0094] Tertiary cooler 5: operating temperature 8°C, operating pressure 5MPa.

[0095] Tertiary separator 6: the operating temperature is 8°C, and the operating pressure is 5MPa.

[0096] Condenser 8 and reflux tank 9: the operating temperature is 70°C and the operating pressure is 1.8MPa.

[0097] Reboiler 10: operating temperature 242°C, operating pressure 2.0MPa.

[0098] Condenser 12 and reflux tank 13: the operating temperature is 52°C, and the operating pressure is 1.2MPa.

[0099] Reboiler 14: operating temperature 296°C, operating pressure 1.38MPa.

[0100] Condenser 16 and reflux tank 17: the operating te...

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Abstract

The invention relates to a rectification technology for separation of a Fischer-Tropsch synthetic product. The rectification technology comprises the following steps of triple separation, four-tower rectification, and separation of five sections of fraction. Compared with the traditional hot trap separation, water-cooling separation and deep-cooling separation routes, the rectification technologyhas the characteristics that the fraction sections of the obtained product are clear, the recycling rate of the product is high, and the deep processing prospect of the product is broad; the rectification technology is not only suitable for the reaction products of a slurry bed, but also suitable for the reaction products of a fixed bed.

Description

technical field [0001] The invention belongs to a rectification process for separation of Fischer-Tropsch synthesis products. Background technique [0002] Fischer-Tropsch synthesis refers to the conversion of synthesis gas (CO+H 2 ) to make hydrocarbon fuel oils, lubricating oils and waxes. According to the different forms of catalyst and reactor, Fischer-Tropsch synthesis can be divided into iron-based slurry bed reaction and cobalt-based fixed bed reaction. With the depletion of petroleum resources, Fischer-Tropsch synthesis reaction to prepare liquid fuels and other products has received extensive attention. Therefore, the wax oil in the Fischer-Tropsch product is refined to provide crude raw materials for the refining of fuel oil, base lubricating oil and petrochemical products. [0003] Past patents mainly focused on the coarse separation of Fischer-Tropsch synthesis catalysts, reactors and their synthetic products (wax oil and water), while there were few ideas for...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G7/00B01D3/14C10L3/12C10M105/04
Inventor 李德宝夏铭贾丽涛侯博马中义陈从标
Owner SHANXI INST OF COAL CHEM CHINESE ACAD OF SCI
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