One-stage serial hydrocracking method

A technology of hydrocracking and hydrogen, which is applied in the fields of hydroprocessing process, petroleum industry, and hydrocarbon oil treatment, and can solve problems such as catalysts are not considered

Active Publication Date: 2008-03-26
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

US4834365 relates to a graded packing method with different particle sizes of hydrocracking catalysts, without considering different types of catalysts

Method used

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  • One-stage serial hydrocracking method
  • One-stage serial hydrocracking method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～7

[0027] The properties of the raw oil used in the examples are shown in Table 1. (wherein wt% is weight percent)

[0028] Table 1 Raw Oil Properties

[0029] Raw oil

[0030] First, the raw material oil is mixed with hydrogen and enters the hydrocracking pretreatment reactor, and then continues to enter the hydrocracking reactor to obtain the hydrocracking product oil, which is also fractionated. The light fractions and tail oils with different distillation ranges obtained above, the process conditions And product properties are shown in Table 2 and Table 3.

[0031] Table 2 Embodiment 1-5 and comparative example process conditions and product properties

[0032] Example 1

[0033] Hydrocracking Reactor

[0034] Table 3 Embodiment 6-7 process conditions and product properties

[0035] Example 6

[0036] Average reaction temperature / ℃

[0037] It can be seen from the examples that the process of the present invention can e...

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Abstract

The present invention discloses one-section cascade hydrocracking process, and features the hydrocracking unit comprising one hydrocracking pre-treating reactor filled with pre-treating catalyst and hydrocracking catalyst and one hydrocracking reactor filled with hydrocracking catalyst and post-hydrotreating catalyst connected serially. Compared with available technology, the hydrocracking unit of the present invention has the advantages of raised integral activity, increased treating capacity or increased operation period, and raised product quality.

Description

technical field [0001] The invention discloses a hydrocracking method, in particular a one-stage serial hydrocracking method. Background technique [0002] With the rapid development of the world economy, the demand for fuel oil products is increasing, and environmental protection regulations are becoming increasingly stringent, and the quality requirements for oil products are also getting higher and higher, which requires the development of technologies to produce clean oil products from inferior raw materials . Hydrocracking technology is the most direct and effective way to obtain high-quality light products from inferior heavy raw materials, so it has been widely developed and applied. [0003] According to the setting of the reaction part, the hydrocracking process can be divided into single-stage hydrocracking, one-stage series hydrocracking and two-stage hydrocracking, among which one-stage series hydrocracking is widely used. Depending on whether the tail oil is c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G65/10
Inventor 刘涛曾榕辉田洪良赵玉琢白振民单广波孙洪江黄小兵
Owner CHINA PETROLEUM & CHEM CORP
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