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Medium pressure hydrocracking process for preparing jet fuel

A technology of hydrocracking and jet fuel, which is applied in the field of hydrocarbon oil cracking, and can solve problems such as multiple equipment, increased equipment investment, and large circulation of kerosene fractions.

Active Publication Date: 2007-11-28
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method needs to increase more equipment, and the circulation of kerosene fraction is relatively large, which increases the investment of the device, and the operation is more complicated

Method used

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  • Medium pressure hydrocracking process for preparing jet fuel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Compared with Comparative Example 1, the hydrocracking reaction effluent of this example is subjected to hydrotreating with the gas phase stream after high-pressure separation, and other conditions are the same. Tables 1 to 4 are the properties of raw oil, process operating conditions, product yield and main product properties.

[0034] Contrast result shows, the present invention has reached production qualification under the situation that catalyst volume increases very little # Jet fuel requirements, while product distribution and other product properties have changed little.

Embodiment 2

[0038] Compared with Comparative Example 2, the hydrocracking reaction effluent in this example is subjected to hydrotreating with the gas phase stream after high-pressure separation, and other conditions are the same. Tables 5 to 8 are the properties of raw oil, process operating conditions, product yield and main product properties.

[0039] Contrast result shows, the present invention has reached production qualification under the situation that catalyst volume increases very little # Jet fuel requirements, while product distribution and other product properties have changed little.

[0040] Raw oil properties

[0041] Comparative example 1

[0042] * Based on fresh ingredients

[0043] Product Distribution (Based on Fresh Raw Materials)

[0044] Comparative example 1

[0045] Raw oil properties

[0046] Comparative example 2

[0047] * Based on fresh ingredients

[0048] Product yield (based on ...

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Abstract

The jet fuel producing medium pressure hydrocracking process includes the following steps: mixing material oil with hydrogen for hydroprocessing, hydrocracking the hydroprocessing effluent directly, hot high pressure separating the hydrocracking effluent into gaseous matter flow and liquid matter flow, arene saturating of the gaseous matter flow in the second hydroprocessing reactor, lowering the pressure of the liquid matter flow and making it pass successively through hot low pressure separator, cold low pressure separator and fractionating tower, cold high pressure separating the effluent from the second hydroprocessing reactor into liquid phase flow and gas phase flow, circulating the gas phase flow, lowering the pressure of the liquid phase flow and making it pass successively through cold low pressure separator and fractionating tower, and separate liquid matter in the fractionating tower to obtain naphtha fraction, jet fuel fraction, diesel oil fraction and tail oil.

Description

technical field [0001] The present invention relates to a process for the cracking of hydrocarbon oils in the presence of hydrogen to obtain low boiling fractions, and more particularly to a process for hydrocracking for the production of jet fuel. Background technique [0002] Hydrocracking technology has always been one of the effective means of lightening heavy oil due to its ability to process heavier raw materials, and has the advantages of high liquid yield, excellent product properties, flexible product schemes and device operations. With the more stringent environmental protection requirements worldwide, hydrocracking technology, as an effective means of producing clean fuel and combining oil production, is more and more favored by people. [0003] However, the traditional high-pressure hydrocracking technology, due to high pressure, leads to large investment and high operating costs, which limits its industrial application to a certain extent...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G47/00
Inventor 熊震霖石玉林胡志海王子文毛以朝董松涛
Owner CHINA PETROLEUM & CHEM CORP
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