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Method for maximum production of clean diesel oil by shale oil whole fraction hydrogenation

A shale oil, the largest amount of technology, applied in the field of shale oil hydrogenation to produce clean diesel in large quantities, can solve the problems of shortening the operation period of the device, residual oil and coke, etc., to ensure long-term operation, good water resistance, The effect of improving quality

Active Publication Date: 2014-07-23
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantage is that it produces more residual oil and coke, which will inevitably shorten the operation period of the device

Method used

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  • Method for maximum production of clean diesel oil by shale oil whole fraction hydrogenation
  • Method for maximum production of clean diesel oil by shale oil whole fraction hydrogenation
  • Method for maximum production of clean diesel oil by shale oil whole fraction hydrogenation

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Embodiment 1～3

[0029] The properties of the raw oil used in the examples are shown in Table 1.

[0030] Table 1 Properties of whole fractions of shale oil (composition is mass percentage)

[0031]

[0032]

[0033] First, the whole fraction of shale oil is mixed with hydrogen and hydrocracking reaction effluent into the hydrofinishing reactor to obtain hydrofinished oil for separation, and the unconverted oil enters the hydrocracking reactor for hydrocracking, and the obtained hydrogenation All the reaction effluent is returned to the hydrofinishing reactor as the feed for hydrofinishing, and the oil produced by hydrofinishing is obtained for fractionation.

[0034] The first reactor in the hydrofining reaction section is filled with the large-particle hydrotreating catalyst R-FF-26 developed by Fushun Petrochemical Research Institute, which is in the shape of a Raschig ring with a diameter of 10×10mm, and the bed porosity is 0.60. The second reactor is filled with FF-36 hydrotreating c...

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Abstract

The invention discloses a method for maximum production of clean diesel oil by shale oil whole fraction hydrogenation. The method adopts a technology combined hydrofining and hydrocracking. The method comprises the following steps of mixing a whole fraction of shale oil and hydrogen, feeding the mixture into a hydrofining reaction section, carrying out heat exchange cooling of effluence obtained by the hydrofining, feeding the cooled effluence into a separator, carrying out gas-liquid separation, feeding the separated liquid into a product fractionating tower, carrying out cutting to obtain products of naphtha, diesel oil and the like, feeding unconverted oil in the bottom of the product fractionating tower into a hydrocracking reaction section for hydrocracking to obtain hydrocracked effluent, and circulating all the hydrocracked effluent as a hydrofinishing raw material. Compared with the prior art, the method realizes production of clean diesel oil meeting the European V standard by shale oil whole fraction hydrogenation, has a product yield of 85% and can obtain a low-sulfur high-quality naphtha by-product as an ethylene production raw material, and thus providing a beneficial technology approach for shale oil deep processing and alleviating the situation of short supply of petroleum-based diesel oil.

Description

technical field [0001] The invention relates to a method for maximum mass production of clean diesel oil through hydrogenation of shale oil. Specifically, the whole distillate of shale oil is used as raw material, and high-quality light fuel oil is produced by hydrofining-hydrocracking method. Background technique [0002] The shortage of oil resources in the world has made the technology of processing various unconventional oil resources to produce light fuel oil a hot topic, one of which is to use shale oil as raw material to produce clean fuel. [0003] Shale oil is the product of thermal decomposition of organic matter after thermal processing of oil shale, similar to natural petroleum, but contains more unsaturated hydrocarbons and non-hydrocarbon organic compounds such as hydrophobic, nitrogen, and oxygen, and these unsaturated Hydrocarbons and non-hydrocarbon organic compounds are the main reasons for the increase of oil colloid and the formation of sediment, which l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G67/02
Inventor 赵桂芳姚春雷李景斌苏重时
Owner CHINA PETROLEUM & CHEM CORP
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