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Method for hydrogenating deeply-drawing carbolineum

A technology of deep anthracene oil and anthracene oil, which is applied in the fields of hydrogenation treatment process, petroleum industry, and hydrocarbon oil treatment, etc. It can solve the problem that the nitrogen content of heavy distillates meets the feed requirements, the activity stability of hydrogenation catalyst is unfavorable, and the Problems such as the operation cycle of the device, to achieve the effect of prolonging the operation cycle of the device, reducing the content of nitrogen and aromatics, and increasing the added value

Active Publication Date: 2011-05-04
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] CN101024780A uses conventional anthracene oil as raw material to produce high-quality diesel oil. It adopts a series process of hydrofinishing-hydrocracking. The ammonia and water generated in the process of hydrofinishing have adverse effects on the activity and stability of subsequent hydrogenation catalysts, affecting the device operating cycle, can not process deep dipanthracene oil
CN101033409A refines and produces oil with a nitrogen content of <400 μg / g, and CN1676583A tail oil directly enters the hydrocracking reactor. These two methods have the same problem: the nitrogen-containing compounds that are difficult to remove are concentrated in the heavy fraction as the hydrocracking feed In the conventional hydrotreating catalyst and hydrogenation conditions, it is difficult to make the nitrogen content in the heavy fraction meet the feed requirements of hydrocracking
These two methods can not process deep dipanthracene oil

Method used

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  • Method for hydrogenating deeply-drawing carbolineum
  • Method for hydrogenating deeply-drawing carbolineum
  • Method for hydrogenating deeply-drawing carbolineum

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～3

[0052] In the embodiment, the hydrotreating reaction zone adopts two reactors. The first reactor is filled with hydrogenation protection agents FZC-100, FZC-102B and FZC-103 in turn from top to bottom, and the second reactor is filled with hydrotreating catalyst 3936 . In the embodiment, the volume ratio of FZC-100:FZC-102B:FZC-103:3936 is as follows: 6:15:19:60. The results obtained from the reaction are shown in Table 3.

[0053] Table 3 Hydrotreating reaction zone process conditions and hydrotreating oil properties

[0054]

Embodiment 4

[0056] After the hydrorefining oil obtained in Example 1 is subjected to gas-liquid separation through the separation system, the obtained liquid-phase product enters the hydrocracking reaction zone, and successively passes through the hydrorefining catalyst 3936, the hydrotreating carbon residue catalyst, and the hydrocracking catalyst. and post-treatment hydrorefining catalyst FF-26, its volume ratio is 40:15:40:5, wherein the first hydrocracking catalyst loaded on the top of the hydrocracking catalyst is a hydrocracking catalyst containing amorphous silica-alumina and Y molecular sieves , the second hydrocracking catalyst loaded in the lower part is a hydrocracking catalyst containing amorphous silica-alumina and beta molecular sieve, and the volume ratio of the two is 2:1.

Embodiment 5

[0058] The hydrorefining product oil obtained in Example 1 was replaced with the hydrorefining product oil obtained in Example 2, and the rest were the same as those in Example 4.

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Abstract

The invention discloses a method for hydrogenating deeply-drawing carbolineum. The two-section hydrocracking process is applied to the method. The deeply-drawing carbolineum passes through a hydrorefining reaction area firstly to obtain a hydrorefining product; the obtained hydrorefining product is separated to obtain a liquid phase product which enters a hydrocracking reaction area, is sequentially contacted with a hydrorefining catalyst, a hydrogenating residual carbon removing catalyst and a hydrocracking catalyst for reaction to obtain a hydrocracking product; and the hydrocracking product is separated to obtain gasoline and diesel oil fractions. By using the method, the deeply-drawing carbolineum is processed, the range of raw materials is widened, the deeply-drawing carbolineum can be converted to maximum extent, the yield of lightweight fuel oil can be improved and the added value of carbolineum is improved; meanwhile, the activity of the hydrocracking catalyst can be effectively protected, so that the device can operate for a long period.

Description

technical field [0001] The invention relates to a method for hydrogenation of anthracene oil, in particular to a method for hydrogenation of deep anthracene oil. Background technique [0002] The increasing scarcity of the world's petroleum resources has made the technology of processing various unconventional petroleum resources to produce light fuel oil a hot topic, one of which is to produce clean fuels from coal-based raw materials. [0003] Coal tar is a by-product of coking technology, and anthracene oil is one of its distillation products. Generally, the fraction at 300-360°C is called I anthracene oil, the fraction at 360-500°C is called II anthracene oil, and the fraction above 500°C belongs to asphalt components. In recent years, coal tar hydrogenation has attracted much attention in the coal chemical industry. The dry point of hydrogenation raw materials is generally less than 500-550°C. As a processing raw material that needs to increase added value, asphalt comp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G65/12
Inventor 许杰
Owner CHINA PETROLEUM & CHEM CORP
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