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

A method for hydrogenation conversion of aromatics-containing diesel oil

A hydrogenation conversion and diesel oil technology, which is applied in the field of hydrogenation conversion of aromatics-containing diesel oil, can solve the problem of low octane number of gasoline products, achieve the effect of ensuring long-term operation and reducing oversaturation

Active Publication Date: 2019-03-19
CHINA PETROLEUM & CHEM CORP +1
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the octane number of the gasoline product obtained by this method is low, and further processing is still required

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 method for hydrogenation conversion of aromatics-containing diesel oil
  • A method for hydrogenation conversion of aromatics-containing diesel oil
  • A method for hydrogenation conversion of aromatics-containing diesel oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] use figure 1 process shown. There are three reactors, R1 and R2 are hydrocracking pretreatment reactors, and R3 is a hydroconversion reactor. R1 and R2 are filled with catalyst A, and R3 is filled with catalyst B. In the initial stage of operation, R2 is short-circuited, FCC diesel and hydrogen are mixed into R1, and the effluent is obtained into R3 to obtain products, which are separated and fractionated to obtain gas, gasoline products and diesel products. After 5,500 hours of operation, the process is changed, and R2 is cut into the process flow: FCC diesel is mixed with hydrogen and enters R1, the obtained effluent enters R2, and the obtained effluent enters R3, and the obtained products are separated and fractionated to obtain gas, gasoline products and diesel products. Process conditions and product properties are shown in Table 3.

Embodiment 2

[0044] use figure 1 process shown. There are three reactors, R1 and R2 are hydrogenation pretreatment reactors, and R3 is a hydrogenation conversion reactor. R1 and R2 are filled with catalyst A, and R3 is filled with catalyst B. At the initial stage of operation, R2 is short-circuited, raw material oil and hydrogen are mixed into R1, and the effluent is obtained into R3 to obtain products, which are separated and fractionated to obtain gas, gasoline products and diesel products. After 5,500 hours of operation, the process is changed, and R2 is cut into the process flow: the raw material oil is mixed with hydrogen and enters R1, the obtained effluent enters R2, and the obtained effluent enters R3, and the obtained products are separated and fractionated to obtain gas, gasoline products and diesel products. Process conditions and product properties are shown in Table 5.

[0045] Table 3 Process conditions and product properties

[0046] running time, h

10

60...

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
Login to View More

Abstract

The present invention discloses a hydrogenation conversion method of aromatic hydrocarbon-containing diesel oil. According to the present invention, an aromatic hydrocarbon-containing diesel oil distillate is subjected to a hydrorefining reaction at a hydrogenation pretreatment section, and then is subjected to a hydroconversion reaction at a hydroconversion section, wherein the hydrogenation pretreatment section comprises at least two hydrogenation pretreatment zones; the method further comprises that (a) only one hydrogenation pretreatment zone is used in the step, the other hydrogenation pretreatment zone is subjected to short circuit, and the time is less than the deactivation time of the hydroconversion section, and (b) all the hydrogenation pretreatment zones are used in the step; and with the method of the present invention, the stable operation starting time of the device at the startup initial stage is shortened, and the operating period of the device is effectively prolonged.

Description

technical field [0001] The invention relates to a method for hydrogenation conversion of aromatics-containing diesel oil, in particular to a method for producing high-octane gasoline by hydrogenation conversion of aromatics-containing diesel oil. technical background [0002] Catalytic cracking (FCC) technology is one of the main technological means of lightening heavy oil, and it occupies a relatively important position in oil refining enterprises in all countries in the world. In recent years, the quality of catalytic cracking products, especially catalytic cracking light cycle oil (LCO), has worsened with the increasingly heavy and inferior quality of raw materials processed by catalytic cracking units. FCC light cycle oil has high sulfur content and aromatics content, and poor engine ignition performance. It is mainly used for blending fuel oil, non-vehicle diesel oil and heating oil abroad. [0003] At present, foreign countries have used hydrocracking technology to co...

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): C10G65/12
CPCC10G65/12C10G2300/1037C10G2400/02
Inventor 孙士可吴子明庞宏崔哲王仲义彭冲
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