High and low-temperature Fischer-Tropsch synthesis co-production technology

A Fischer-Tropsch synthesis, high and low temperature technology, which is used in the petroleum industry, the preparation of liquid hydrocarbon mixtures, and the production of hydrocarbons by addition of unsaturated hydrocarbons. It can solve problems such as increased production costs and achieve the effect of increasing added value

Active Publication Date: 2012-07-25
TAIYUAN UNIV OF TECH
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Problems solved by technology

If gasoline and diesel are the main products, it will not only be hindered by the oil industry, but also cause the problem of increased production costs

Method used

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  • High and low-temperature Fischer-Tropsch synthesis co-production technology
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  • High and low-temperature Fischer-Tropsch synthesis co-production technology

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Embodiment 1

[0069] The following logistics analysis and economic analysis are based on the high and low temperature Fischer-Tropsch synthesis with an annual output of 5 million tons of oil products, and the combination of high and low temperature co-production in a 2:3 manner. The share of α-olefin in the total product is calculated as 40wt%. The proportions of ethylene, propylene and butene in the product are based on the data reported in the literature. The α-olefin separation efficiency in the process is 90%. The technical characterictic that does not mention in this embodiment adopts the technology routinely used in high-temperature Fischer-Tropsch synthesis and low-temperature Fischer-Tropsch synthesis, and conditions such as catalyst, temperature of reaction, pressure are conventional technology etc., and it changes within a certain range to the present invention There is no influence on the process effect, which is not described one by one in this embodiment.

[0070] For the spe...

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PUM

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Abstract

The invention relates to a high and low-temperature Fischer-Tropsch synthesis co-production technology which is characterized in that the high-temperature Fischer-Tropsch synthesis technology and the low-temperature Fischer-Tropsch synthesis technology are coupled; a coal gasifying and purifying unit is adopted to produce synthetic gases; the purified synthetic gases (CO+H2) enter a high-temperature Fischer-Tropsch synthesis unit and a low-temperature Fischer-Tropsch synthesis unit at different ratios of CO to H2 respectively; and the crude products obtained by the high-temperature Fischer-Tropsch synthesis unit and the low-temperature Fischer-Tropsch synthesis unit form a mixture flow which enters the subsequent oils deep-processing unit and hydrocarbon gas downstream processing unit according to the characteristics of different crude products to produce gasoline, diesel oil, synthetic lubricating oil, polypropylene, polyethylene and high value-added alpha-olefin. The technology provided by the invention avoids the uncertainty of the oils market under the fluctuation of the international crude oil market, realizes balance of the oils income by use of the income of chemical products, and finally achieves the aim of enhancing the competitiveness of the Fischer-Tropsch synthesis oils.

Description

technical field [0001] The invention relates to the technical fields of energy chemical industry and coal chemical industry, in particular to a high-low temperature Fischer-Tropsch synthesis co-production process, in particular to a high-low temperature Fischer-Tropsch synthesis co-production process with coal as raw material and oil products, olefins and chemicals as target products. production process. Background technique [0002] With the continuous development of my country's aerospace industry and automobile industry, my country's demand for liquid fuels is also increasing. It is estimated that in 2016, my country's gasoline demand will reach 250×10 14 bbl / d, the demand for diesel in the Asia-Pacific region will reach 406×10 in 2015 14 bbl / d. Coal indirect liquefaction technology-Fischer-Tropsch (F-T) synthesis, as an important technical method for synthesizing liquid fuels, has once again become the focus of attention in the field of coal chemical industry. Fischer...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10J3/00C10G2/00C07C11/04C07C11/06C07C11/08C07C11/107C07C11/02C07C7/09C07C2/06C07C1/04
Inventor 冯杰褚绮李文英郭琳谢克昌
Owner TAIYUAN UNIV OF TECH
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