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Production of intermediate fractional oil from Fischer-Tropsch synthetic oil

A Fischer-Tropsch synthetic oil, full distillate technology, applied in the petroleum industry, hydrocarbon oil treatment, hydrotreating process, etc., can solve the problems of poor product quality, stability and adverse effects of operation cycle, etc.

Active Publication Date: 2008-05-21
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, because the Fischer-Tropsch synthetic oil contains a relatively high content of olefins and oxygen, it is directly in contact with the isomerization cracking catalyst, which has an adverse effect on its stability and operation cycle, and the product quality is poor

Method used

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  • Production of intermediate fractional oil from Fischer-Tropsch synthetic oil

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Experimental program
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Effect test

Embodiment 1

[0044] The whole fraction of Fischer-Tropsch synthetic oil enters the hydrofining reactor, and under the action of hydrofining catalyst RTF-1, the reaction of olefin saturation and hydrodeoxygenation is carried out, and the refined reaction products are cut into naphtha fraction and diesel fraction by fractionation tower and heavy oil fraction; the heavy oil fraction is mixed with the tail oil fraction from the hydrocracking fractionation tower and then enters the isomerization hydrocracking reactor, and the reaction product generated under the action of the isomerization hydrocracking catalyst RCF-1 enters the fractionation tower and is cut into stone Naphtha fraction, diesel fraction and tail oil fraction, the tail oil fraction is recycled to the isomerization hydrocracking reactor to continue cracking into light purpose products. The operating conditions and product distribution are shown in Table 2, the properties of naphtha fraction products are listed in Table 3, and the ...

Embodiment 2

[0047] The whole fraction of Fischer-Tropsch synthetic oil enters the hydrofining reactor, and under the action of hydrofining catalyst RTF-1, the reaction of olefin saturation and hydrodeoxygenation is carried out, and the refined reaction products are cut into naphtha fraction and diesel fraction by fractionation tower and heavy oil fraction; the heavy oil fraction is mixed with the tail oil fraction from the hydrocracking fractionation tower and then enters the isomerization hydrocracking reactor, and the reaction product generated under the action of the isomerization hydrocracking catalyst RCF-2 enters the fractionation tower and is cut into stone Naphtha fraction, diesel fraction and tail oil fraction, the tail oil fraction is recycled to the isomerization hydrocracking reactor to continue cracking into light purpose products. The operating conditions and product distribution are shown in Table 2, the properties of naphtha fraction products are listed in Table 3, and the ...

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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 pertains to a method for treating hydrocarbon oils using multiple hydrotreating processes, more particularly to a method for treating Fischer-Tropsch synthetic oils using a hydrotreating process and a cracking process in the presence of hydrogen. technical background [0002] At present, the main source of fuel used by various means of transportation in the world is petroleum, and various derivatives of petroleum provide a strong driving force for economic and social development. However, petroleum, as a non-renewable energy source, is facing the crisis of depletion day by day, and the quality of crude oil is getting worse and worse, and the content of non-ideal components such as polycyclic aromatic hydrocarbons, sulfur, nitrogen, etc. Before becoming a fuel commodity, it needs to go through an increasingly complex processing process to remove components that affect the environment, resulting in a substantial increase in producti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G65/12
Inventor 李毅石亚华熊震霖胡志海门卓武董松涛聂红李大东
Owner CHINA PETROLEUM & CHEM CORP
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