Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A combined process method for treating low-quality residual oil

A combined process and low-quality technology, which is applied in the treatment of hydrocarbon oil, hydrotreating process, petroleum industry, etc., and can solve problems such as complex operation

Active Publication Date: 2021-04-06
CHINA PETROLEUM & CHEM CORP +1
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method can prolong the stable operation period of the device, but the operation of this method is more complicated

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A combined process method for treating low-quality residual oil
  • A combined process method for treating low-quality residual oil
  • A combined process method for treating low-quality residual oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0082] 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

[0088] 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

[0091] 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 4:5 : 1. Catalyst B and Catalyst C are installed in the reactor 3 of the hydroproce...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
specific surface areaaaaaaaaaaa
specific surface areaaaaaaaaaaa
Login to View More

Abstract

The invention discloses a method for treating inferior residual oil with a combined process. After the heavy oil raw material is saturated with hydrogen, it first passes through the hydrogenation pretreatment zone for hydrodemetallization and partial desulfurization; the reaction effluent is saturated with hydrogen again and then enters the hydrotreatment reaction zone for hydrodesulfurization and hydrodenitrogenation Reaction; wherein the reaction temperature in the hydrogenation pretreatment reaction zone is higher than the reaction temperature in the hydrotreatment reaction zone. In the method of the present invention, the hydrogenation pretreatment reaction zone reacts at a higher temperature, which can remove most of the metal impurities in the material, so that the desulfurization catalyst and / or denitrogenation catalyst in the hydrogenation treatment reaction zone are deactivated The reason has changed from the previous metal deposition and carbon deposition deactivation to only carbon deposition deactivation, so that the desulfurization catalyst and denitrogenation catalyst can be regenerated after one cycle of use, prolonging the operation cycle of the hydrogenation unit, thereby increasing the capacity of the unit. The operating efficiency improves the economy.

Description

technical field [0001] The invention relates to the field of petroleum refining, in particular to a method for treating inferior residue oil 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 d...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
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
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com