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

Shale oil diesel fraction single-stage serial hydrorefining method

A hydrorefining and shale oil technology, which is applied in the fields of hydrotreating process, petroleum industry, and hydrocarbon oil treatment, can solve the problems that motor fuel oil cannot be used directly, and the operating parameters are harsh, so as to reduce the concentration, improve the quality, The effect of reducing coking

Active Publication Date: 2014-05-07
CHINA PETROLEUM & CHEM CORP +1
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The whole fraction of shale oil is directly hydrotreated, and the operating parameters are relatively strict, and it can only reduce the non-ideal components in the whole fraction of shale oil to a certain extent, so it cannot be directly used as motor fuel oil, and further processing is 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
  • Shale oil diesel fraction single-stage serial hydrorefining method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] In this example, the first reactor was filled with two catalysts, R-FF-26 and FF-26, the weight ratio of the two catalysts was 1:1, and the bed porosity was 0.50. The second reactor uses FF-26 hydrotreating catalyst developed and produced by Fushun Petrochemical Research Institute, and the bed porosity is 0.38. A part of the generated oil in the second reactor is recycled to the first reactor and directly mixed with the raw material shale oil diesel fraction for heat exchange, and the mixing ratio is raw material: generated oil = 2:1. The reaction process conditions and results are shown in Table 2.

Embodiment 2

[0033] Same as Example 1, except that the oil produced in the second reactor was not recycled back to the first reactor.

[0034] Example 1 Example 2 first reactor catalyst R-FF-26 / FF-26 R-FF-26 / FF-26 Process conditions temperature, ℃ 190 190 pressure, MPa 8.0 8.0 Hydrogen oil ratio 800：1 800：1 Airspeed, h -1 3.5 3.5 second reactor catalyst FF-26 FF-26 Process conditions temperature, ℃ 360 360 pressure, MPa 8.0 8.0 Hydrogen oil ratio 800：1 800：1 Airspeed, h -1 0.8 0.8 Produced oil N content, μg / g 154 300

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

No PUM Login to View More

Abstract

The invention discloses a shale oil diesel fraction single-stage serial hydrorefining method which is as follows: before a shale oil and diesel fraction and hydrogen enter a first reactor, the shale oil and diesel fraction and the hydrogen firstly are mixed with part of generated oil for direct heat transfer to 150-250 DEG C, then pass in a volume space velocity of 0.5-4.0h<-1> through the first reactor which is filled with a high-porosity hydrofining catalyst and conventional hydrotreating catalyst mixture; after heat transfer, a first reactor effluent directly passes in a volume space velocity of 0.3-1.0h<-1> through the second reactor in which the average reaction temperature is 350-390 DEG C, and the second reactor is filled with a conventional hydrofining catalyst. The method can improve the diene saturation performance of a whole reaction system, avoids coking of raw oil in heating or heat transfer processes, prolongs the running period of a device, and improves the quality of products.

Description

technical field [0001] The invention relates to a process method for hydrogenation of shale oil diesel fraction. In particular, it relates to a method for treating shale diesel by adopting a one-stage series hydrorefining process. Background technique [0002] Shale oil is a liquid product obtained by heating and decomposing kerogen in oil shale. In addition to many non-hydrocarbon compounds such as sulfur, nitrogen and oxygen, shale oil also contains a large amount of unsaturated hydrocarbons. Unsaturated hydrocarbons and non-hydrocarbon compounds in shale oil are the main reasons for the increase of oil colloid and the formation of sediment, which leads to poor stability and black color. Due to the nature of shale oil is different from natural petroleum, it is mainly used as fuel oil and the production of chemical products. To produce motor fuel oil from shale oil, non-ideal compounds and saturated olefins need to be removed to ensure product quality. [0003] Natural p...

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 Applications(China)
IPC IPC(8): C10G65/04
Inventor 苏重时姚春雷李景斌刘灏
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