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Shale oil hydrogenation process

A process method, shale oil technology, applied in refining to remove heteroatoms, etc., can solve the problems of increasing ammonia adsorption, low yield of generated oil, increasing post-treatment process, etc.

Active Publication Date: 2009-07-29
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As the reaction progresses, the amount of ammonia produced gradually increases, and the concentration of ammonia in the gas increases, which increases the probability of ammonia being adsorbed on the acidic sites of the catalyst, reduces the acidic sites, and affects the basicity of hydrogenation of neutral and acidic nitrogen compounds. Nitride, and further adsorbed to the acidic center of the catalyst for hydrodenitrogenation reaction, which reduces the denitrification effect, resulting in patents US4231858 and US4238320 to obtain low-nitrogen products, increase the post-treatment process, and produce low oil yield at the same time

Method used

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  • Shale oil hydrogenation process

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Fushun shale oil at 180-380°C was used as the test sample, and its properties are shown in Table 1.

[0017] Table 1 Properties of 180~380℃ distillate oil

[0018] C / ％

[0019] The hydrofining catalyst is FF-26, at a reaction temperature of 360°C, a reaction pressure of 8.0MPa, and a volumetric space velocity of 0.8h -1 , under the condition of hydrogen-to-oil ratio 300:1, the conventional process (feedstock oil and hydrogen pass through the catalyst bed in parallel from top to bottom) and the countercurrent process were used for comparative experiments, and the results are shown in Table 4.

Embodiment 2

[0021] The whole fraction of Fushun shale oil was used as the test sample, and its properties are shown in Table 2.

[0022] Table 2 Properties of whole fractions

[0023] C / ％

[0024] There are two layers of hydrofining catalyst bed, the catalyst in the upper part of the reactor is R-FF-26, the catalyst in the lower part of the reactor is FF-26, and the volume ratio of R-FF-26 and FF-26 is 50:50. At a reaction temperature of 390°C, a reaction pressure of 15.0MPa, and a volumetric space velocity of 0.6h -1 , under the condition of hydrogen-to-oil ratio of 800:1, the content of hydrogen sulfide in the hydrogen entering the reactor was 700 μL / L. The conventional process and the countercurrent process were used for comparative experiments, and the results are shown in Table 4. In addition, in this embodiment, since hydrogen sulfide is added to the hydrogen entering the reactor, the catalyst can maintain good activity and stability.

Embodiment 3

[0026] Fushun shale oil at 380-520°C was used as the test sample, and its properties are shown in Table 3.

[0027] Table 3 Properties of 380~520℃ distillate oil

[0028] C / ％

85.63

H / ％

11.75

S / ％

0.45

N / ％

1.0675

[0029] There are two layers of hydrogenation catalyst bed, the catalyst in the upper part of the reactor is R-FF-26, the catalyst in the lower part of the reactor is FF-26, and the volume ratio of R-FF-26 and FF-26 is 30:70. At a reaction temperature of 420°C, a reaction pressure of 10.0MPa, and a volumetric space velocity of 1.0h -1 , under the condition of hydrogen-to-oil ratio of 500:1, the content of hydrogen sulfide in the hydrogen entering the reactor was 100 μL / L. The conventional process and the countercurrent process were used for comparative experiments, and the results are shown in Table 4. In addition, in this embodiment, since hydrogen sulfide is added to the hydrogen entering the reac...

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Abstract

The invention relates to a shale oil hydrogenation process method. Shale oil raw material is added into a reactor from the upper part of the reactor, hydrogen enters the reactor from the lower part thereof, the gas and oil reversely pass through a hydrobon catalyst bed for oil hydrogen refining, gas phase after reaction is exhausted from the upper part of the reactor, and liquid phase after reaction is the refined shale oil and is discharged from the lower part of the reactor. Compared with the prior art, the method of the invention does not require additional process, hydrogenation process alone can process the shale oil with high nitrogen content into the refined shale oil with low nitrogen content.

Description

technical field [0001] The invention relates to a shale oil hydrogenation process, which is used for processing the whole fraction of shale oil or distillate oil of shale oil, removing non-hydrocarbon components such as sulfur and nitrogen, and improving the quality of shale oil. Background technique [0002] Shale oil is a liquid product obtained by thermal decomposition of kerogen in oil shale. In addition to a large amount of unsaturated hydrocarbons, shale oil also contains many non-hydrocarbon compounds such as sulfur, nitrogen and oxygen. Unsaturated hydrocarbons and non-hydrocarbon compounds in shale oil are the main reasons for the increase of oil colloid and the formation of sediment, which leads to poor stability and black color. Therefore, when producing light products from shale oil, it is necessary to remove non-hydrocarbon compounds and saturated olefins to ensure product quality. [0003] Hydrotreating is a process of catalytic upgrading of oil products in th...

Claims

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Application Information

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IPC IPC(8): C10G45/02
Inventor 苏重时刘平蔡立赵桂芳刘灏
Owner CHINA PETROLEUM & CHEM CORP
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