Method of hydro up grading isomerizing pour point depression to produce diesel oil

A technology of isomerism depreciation and hydrogenation upgrading, which is applied in the petroleum industry, refined hydrocarbon oil, etc., can solve the problems such as the inability to comprehensively improve diesel performance indicators, and achieve strong catalyst adaptability, stable operation, and adaptability to seasonal changes. Effect

Active Publication Date: 2007-08-15
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In summary, none of the existing technologies can comprehensively improve various performance indicators of diesel and simply produce high-quality clean diesel

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0030] In embodiment 2, catalyst replaces (the zeolite content of the zeolite catalyst containing β involved in the US5011593 embodiment) with the catalyzer that contains β zeolite 32wt%, other is identical with embodiment 2, test result is shown in Table 6, can find out from the data in the table , the use of a hydrotreating catalyst with a high zeolite content will greatly reduce the yield of diesel oil, and some performance indicators of diesel oil will also decrease. In addition, because more light hydrocarbons are produced by cracking, the hydrogen consumption will inevitably increase.

[0031] Table 5 Comparative Example 1 reaction temperature

[0032] Process conditions

Comparative example 1

Reaction temperature / ℃

320 / 322

[0033] Table 6 Comparative Example Reaction Results and Refined Oil Properties

[0034] Response result

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PUM

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Abstract

A process for preparing the clean diesel oil by hydromodifying, isomerizing and lowering pour point features that the fractional oil raw material and H2 pass through a catalyst bed to obtain clean high-quality diesel and the naphtha product with low contents of sulfur and nitrogen and high content of arylhydrocarbon. Said catalyst bed contains hydrocatalyst bed containing beta zeolite (0.5-20 wt.%).

Description

technical field [0001] The invention relates to a method for producing diesel oil through hydrogenation modification, isomerization and decondensation. A catalyst with strong isomerization function is selected, and distillate oil is used to produce decondensed diesel oil. Background technique [0002] The sustained development of the national economy has led to the rapid development of the automobile industry and the transportation industry, especially the faster growth of diesel vehicles, which has also brought about the problem of air pollution caused by vehicle exhaust emissions. In order to effectively control vehicle exhaust emissions and protect the ecological environment on which human beings depend, countries all over the world, especially developed countries, have continuously improved automobile engines and their exhaust gas treatment systems, and at the same time have put forward higher and higher requirements for the quality of diesel products. Requirements, the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G45/00
Inventor 关明华李扬王凤来刘继华王震牛世坤
Owner CHINA PETROLEUM & CHEM CORP
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