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Suspension bed hydrocracking method using disperse type catalyzer

A dispersed catalyst and hydrocracking technology, applied in hydrocarbon oil cracking, petroleum industry, etc., can solve the problems of complex process and high equipment investment, and achieve the effects of promoting hydrogenation reaction, saving equipment investment, and reducing the amount of coke

Active Publication Date: 2009-05-20
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The process of the above two patents is complex, the vulcanization process of the catalyst is carried out under relatively high pressure, and the investment in equipment is high.

Method used

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  • Suspension bed hydrocracking method using disperse type catalyzer
  • Suspension bed hydrocracking method using disperse type catalyzer
  • Suspension bed hydrocracking method using disperse type catalyzer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0023] Such as figure 1 As shown, the process flow for hydrogenation of residual oil using a dispersed catalyst suspension bed is as follows: feed material 1, catalyst 2 and vulcanizing agent 3 into the mixer 4 according to the required ratio, wherein the mixer can be a multi-stage shear pump, Magnetic stirrer, emulsifier, etc., the uniformly mixed raw materials enter the raw material tank 5, and are sent to the low-pressure low-temperature vulcanizer 7 and the low-pressure high-temperature vulcanizer 8 successively through the low-pressure pump 6, and are fully vulcanized by countercurrent contact with the low-pressure hydrogen gas 17, and the water is extracted by gas steam. Then the gas is recycled through the cooler 12 to remove water vapor, and the stream from the low-pressure high-temperature sulfurizer is mixed with the high-pressure hydrogen 16 through the high-pressure pump 9 and then enters the reactor 10 for hydrocracking reaction. After the reaction, the product s...

Embodiment 1～3

[0030] This example is a suspension bed hydrocracking test using a dispersed catalyst. See attached for specific operation procedure figure 1 . Raw material 1, catalyst 2 and vulcanizing agent 3 are uniformly mixed by the shear pump and then enter the raw material tank 5, and then sent to the low-pressure low-temperature vulcanization reactor 7 and the low-pressure high-temperature vulcanization reactor 8 successively through the low-pressure pump 6, and contact with the low-pressure hydrogen 17 countercurrently. Fully vulcanize and gas out water vapor, then the gas passes through the cooler 12 to remove the water vapor for recycling, and the stream from the low-pressure high-temperature vulcanizer passes through the high-pressure pump 9 and mixes with the high-pressure hydrogen 16, and then enters the reactor 10 for hydrocracking reaction. The hydrocracking reaction is carried out under certain reaction conditions. After the reaction, the product stream passes through the f...

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Abstract

The invention disclosed a kind of dreg oil hydrogenating technology on floating beds by scattered catalyst. The invention disperses the scattered catalyst and sulphide uniformly in the heavy dreg oil; charging hydrogen or gas which contains hydrogen into the mixed material while keeping the pressure at 0.1-5MPa; pre-sulfurizing the catalyst at 180-240 Deg C and 280-360 Deg C respectively; extracting the water vapour at the same time and recycling the water after cooling the gas; pulping the sulfurized mixture to the reactor, hydrogenating the dreg oil under rated conditions. Compared with the present technologies, the invention can increase the ability to remove the impurities in the heavy dreg oil hydrogenating technology on floating beds; it can also reduce the quantity of generated coke and it can ensure the device to operate steadily for a long time.

Description

technical field [0001] The invention relates to a residual oil suspended bed hydrocracking process, in particular to a suspended bed residual oil hydrogenation process using a water-soluble dispersed catalyst. Background technique [0002] With the vigorous development of heavy crude oil and the changes in the demand structure of petroleum products worldwide, the market demand for light fuel oil continues to grow rapidly and the demand for heavy fuel oil decreases rapidly. The deep processing technology of residual oil has become the world's oil refining technology. The focus of industrial development. Suspension bed hydrogenation technology for residual oil is one of the options for processing heavy and residual oil raw materials. Catalyst presulfidation and its dispersion state in feedstock oil are key technologies in the suspension bed hydrogenation process. Highly dispersed and highly active catalysts can ensure a high yield of light products without coke formation. In...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G47/02
Inventor 贾丽杨涛贾永忠李鹤鸣刘建锟葛海龙
Owner CHINA PETROLEUM & CHEM CORP