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Fischer-Tropsch synthesis system and method for Fischer-Tropsch synthesis by utilizing Fischer-Tropsch synthesis system

A Fischer-Tropsch synthesis and hydrocarbon mixture technology, which is applied in the petroleum industry, multi-stage series refining process treatment, hydrocarbon oil treatment products, etc., can solve the problems of high normal paraffin content, low aromatic content, and insufficient density, etc. question

Active Publication Date: 2017-05-31
CHNA ENERGY INVESTMENT CORP LTD +1
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Problems solved by technology

However, due to the high content of n-alkanes and low content of aromatics in the diesel obtained from Fischer-Tropsch synthesis, the density does not meet the requirements of the national standard (GB 19147-2013), and cannot be directly sold as refined oil

Method used

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  • Fischer-Tropsch synthesis system and method for Fischer-Tropsch synthesis by utilizing Fischer-Tropsch synthesis system

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Embodiment Construction

[0084] The technical solutions of the present invention and their effects will be further described below through specific embodiments. The following embodiments are only used to illustrate the content of the present invention, and are not intended to limit the protection scope of the present invention. Simple changes made to the present invention by applying the concept of the present invention are all within the scope of protection of the present invention.

[0085] Such as figure 1 As shown, a Fischer-Tropsch synthesis system includes a refining fractionation unit;

[0086] The refining fractionation unit includes:

[0087] The first heating furnace 1 is used to transport the refined product from the refined reaction system; the refined product is mainly the C5-C80 saturated hydrocarbon mixture obtained by hydrotreating;

[0088] Refining fractionation column 2 is used to receive the feed from the first heating furnace 1 and fractionate it to obtain the C5-C10 hydrocarbo...

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Abstract

The invention provides a Fischer-Tropsch synthesis system which comprises a rectification unit, wherein the rectification unit comprises a first heating furnace, a rectification tower, a first diesel oil stripper, a first diesel oil pump, a first overhead condenser, a first overhead reflux tank, a first reflux pump and a first naphtha pump. The invention also provides a method for Fischer-Tropsch synthesis by utilizing the Fischer-Tropsch synthesis system. The Fischer-Tropsch synthesis system provided by the invention can be obtained only by transforming a small part on a basis of the existing device, and therefore, the investment is less, and the cost is low; and the invention provides the novel method for obtaining diesel oil by Fischer-Tropsch synthesis, and fractions can be segmented only by adjusting technological parameters, and therefore, the cost is lowered, the yield of naphtha is increased, and the additional value of the diesel oil obtained by Fischer-Tropsch synthesis is increased.

Description

technical field [0001] The invention belongs to the field of Fischer-Tropsch synthesis, in particular to a Fischer-Tropsch synthesis system and a method for using it to perform Fischer-Tropsch synthesis. Background technique [0002] Shenhua Ningxia Coal Group's 4 million tons / year coal indirect liquefaction project adopts slurry bed Fischer-Tropsch synthesis process, and mainly produces diesel, naphtha and LPG (liquefied petroleum gas) through oil processing equipment. However, due to the high content of n-paraffins and low content of aromatics in the diesel obtained from Fischer-Tropsch synthesis, the density does not meet the requirements of the national standard (GB 19147-2013), and cannot be directly sold as refined oil. [0003] The content of n-alkanes in the diesel obtained by Fischer-Tropsch synthesis is as high as 85wt%, which is an excellent raw material for producing light liquid paraffin. The main components of liquid paraffin are normal alkanes, which are divi...

Claims

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Application Information

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IPC IPC(8): C10G53/00C10G53/02C10G55/00
CPCC10G53/00C10G53/02C10G55/00C10G2300/1022C10G2400/04
Inventor 安良成袁炜罗春桃王峰刘素丽邵光涛袁华梁雪美李增杰
Owner CHNA ENERGY INVESTMENT CORP LTD
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