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Integrated Fischer-Tropsch synthetic oil hydrogenation purification

An integrated cost-effective, hydrogenation-upgrading technology, which is applied in the fields of hydrogenation treatment process, petroleum industry, and hydrocarbon oil treatment, can solve the problems of poor product quality, stability, and adverse effects of operation cycle, and achieve less equipment and improved Utilization and service life, the effect of reducing investment and operating costs

Active Publication Date: 2006-11-01
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology

Due to the higher content of olefins and nitrogen in Fischer-Tropsch oil, direct contact with isomerization cracking catalysts has adverse effects on its stability and operating cycle, and the product quality is poor

Method used

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  • Integrated Fischer-Tropsch synthetic oil hydrogenation purification

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Embodiment

[0039] The test catalysts and operating conditions are listed in Table 2, the properties of the product naphtha fraction are listed in Table 3, and the properties of the product diesel fraction are listed in Table 4.

[0040] It can be seen from the data in the table that using the method provided by the present invention, the hydrogen partial pressure is 6.4MPa, the hydrorefining reaction temperature is 300°C, the hydroisomerization cracking reaction temperature is 363°C, and the total volumetric space velocity is 2.0h. -1 , Processing Fischer-Tropsch synthetic full distillate oil under the condition of hydrogen-oil volume ratio of 800v / v can completely convert wax oil distillate into naphtha and diesel products. The yield of diesel product is high, 83.6% by weight, and its cetane number is 80, which can be blended with low cetane number diesel fraction; naphtha fraction is mainly composed of alkanes, which is a good raw material for steam cracking to produce ethylene .

[0041] ...

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Abstract

A kind of integrated hydrogenation improving quality method for the oil fractions from Fishcher-Tropsch synthesis process, it is used to gain high quality middle fraction oil. The all fractions and hydrogen contact with hydrofining catalyst, the middle fraction oil gained after isolation, naphtha and tail oil will be mixed by the reactant liquor of hydrofining and the reactant liquor of hydrocracking reactant liquor, the tail oil and hydrogen will be mixed and then circulate to isocracking reacktor and contact with hydrocracking and isocracking catalyst. The yield of the diesel oil is higher than 80% by the method, and the cetane number will be as high as 80, The water produced by hydrofining process can be prevented to go into the isocracking reacktor by this method, the availability and using periodic can also be improved. Moreover, the technological process of this method is high integrated; the equipment needed is fewer, so the cost of investment and operation can be decreased.

Description

Technical field [0001] The present invention belongs to a method for treating hydrocarbon oil with multiple hydrogenation processes, and more specifically, is a method for treating Fischer-Tropsch synthetic oil with a hydroprocessing process and a cracking process in the presence of hydrogen. technical background [0002] At present, the main source of fuel used by various vehicles in the world is petroleum, and various derivatives of petroleum provide a strong impetus for economic and social development. However, as a non-renewable energy source, petroleum is facing a crisis of depletion. In addition, the quality of crude oil is getting worse and worse. The content of non-ideal components such as fused ring aromatics, sulfur, and nitrogen in the composition of its derivatives is increasing. Before becoming a fuel commodity, it needs to go through an increasingly complex process to remove components that affect the environment, resulting in a substantial incr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G65/12
Inventor 胡志海李毅熊震霖孟勇新门卓武聂红石亚华李大东
Owner CHINA PETROLEUM & CHEM CORP
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