A combined process method for treating heavy hydrocarbons

A combination process and heavy hydrocarbon technology, which is applied in the treatment of hydrocarbon oil, hydrotreating process, petroleum industry, etc., can solve the problems of short operation period and inability to process residual oil with high metal content

Active Publication Date: 2021-04-06
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 cannot process residue oil with high metal content, or when processing residue oil with high metal content, the operation cycle is short

Method used

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  • A combined process method for treating heavy hydrocarbons
  • A combined process method for treating heavy hydrocarbons
  • A combined process method for treating heavy hydrocarbons

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0080] according to figure 1 In the process flow, the hydrogenation pretreatment reaction zone includes a switchable first hydrogenation pretreatment reaction zone and a second hydrogenation pretreatment reaction zone, the first hydrogenation pretreatment reaction zone is provided with a reactor 1, and the second hydrogenation pretreatment reaction zone is provided with a reactor 1. A reactor 2 is arranged in the second hydrogenation pretreatment reaction zone, and the hydrogenation treatment reaction zone includes a hydrogen mixing tank 6 , a reactor 3 , a hydrogen mixing tank 7 and a reactor 4 arranged in series. According to the material flow direction, the reactor in the hydrogenation pretreatment reaction zone (only one hydrogenation pretreatment reaction zone is online during operation) is filled with catalyst A, catalyst B and catalyst C, and the loading volume ratio of each catalyst is 2:7 : 1. Catalyst B and Catalyst C are installed in the reactor 3 of the hydrotreat...

Embodiment 2

[0086] according to figure 1 In the process flow, the hydrogenation pretreatment reaction zone includes a switchable first hydrogenation pretreatment reaction zone and a second hydrogenation pretreatment reaction zone, the first hydrogenation pretreatment reaction zone is provided with a reactor 1, and the second hydrogenation pretreatment reaction zone is provided with a reactor 1. A reactor 2 is arranged in the second hydrogenation pretreatment reaction zone, and the hydrogenation treatment reaction zone includes a hydrogen mixing tank 6 , a reactor 3 , a hydrogen mixing tank 7 and a reactor 4 arranged in series. According to the material flow direction, the reactor in the hydrogenation pretreatment reaction zone (only one hydrogenation pretreatment reaction zone is online during operation) is filled with catalyst A, catalyst B and catalyst C, and the loading volume ratio of each catalyst is 3:6 : 1. Catalyst B and catalyst C are housed in hydrotreating reaction zone reacto...

Embodiment 3

[0089] according to figure 1 In the process flow, the hydrogenation pretreatment reaction zone includes a switchable first hydrogenation pretreatment reaction zone and a second hydrogenation pretreatment reaction zone, the first hydrogenation pretreatment reaction zone is provided with a reactor 1, and the second hydrogenation pretreatment reaction zone is provided with a reactor 1. A reactor 2 is arranged in the second hydrogenation pretreatment reaction zone, and the hydrogenation treatment reaction zone includes a hydrogen mixing tank 6 , a reactor 3 , a hydrogen mixing tank 7 and a reactor 4 arranged in series. According to the material flow direction, the hydrogenation pretreatment reaction zone (only one hydrogenation pretreatment reaction zone is online during operation) is filled with catalyst A, catalyst B and catalyst C, and the loading volume ratio of each catalyst is 4:5:1 . Catalyst B and Catalyst C are installed in the reactor 3 of the hydroprocessing reaction z...

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Abstract

The invention discloses a combined process method for treating heavy hydrocarbons. After the inferior raw material oil is mixed with hydrogen, it first passes through the hydrogenation pretreatment zone; the reaction effluent is separated from the catalytic cracking cycle oil and enters the hydroprocessing reaction zone, and the obtained reaction effluent is separated to obtain hydrogenated residue for catalytic cracking reaction , the circulating oil and / or the oil slurry are circulated to the hydrogenation pretreatment reaction zone, and another part of the cycle oil is circulated to the first hydrogen mixing tank of the hydroprocessing reaction zone; wherein the reaction temperature t1 of the hydrogenation pretreatment reaction zone is higher than that of the hydroprocessing reaction zone The reaction temperature t2 of the hydrogen treatment reaction zone. The method of the invention can improve the utilization rate of the hydroprocessing main catalyst, prolong the operation period of the combined device, and increase the operation efficiency of the device.

Description

technical field [0001] The invention relates to the field of petroleum refining, in particular to a method for treating heavy residue by adopting a combined process of residue oil hydrotreating and catalytic cracking. Background technique [0002] At present, the demand for light and medium oil products in the domestic and foreign oil product markets will continue to rise, while the demand for heavy oil products such as fuel oil will show a downward trend. In addition, due to the increasing pressure of environmental protection, countries have generally raised the quality standard requirements of petroleum products, especially gasoline and diesel products for vehicles. Under the above-mentioned market trend, the refining technology that can not only realize the lightening of heavy oil at a more economical and reasonable price, but also make the obtained products meet the increasingly stringent specifications of gasoline and diesel products has become a key technology develope...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G67/02
CPCC10G67/02
Inventor 吴锐刘涛韩照明黄新露吴长安
Owner CHINA PETROLEUM & CHEM CORP
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