Hydrocracking process for flexibly producing diesel oil

A technology of hydrocracking and hydroisomerization cracking, which is applied in the fields of hydrotreating process, petroleum industry, and hydrocarbon oil treatment, etc. It can solve the problems of poor operational flexibility, reduce operational scale, increase isoparaffin content, The effect of lowering the reaction temperature

Active Publication Date: 2019-07-09
CHINA PETROLEUM & CHEM CORP +1
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when using the above hydrocracking processes alone, you can only choose different types of hydrocracking catalysts according to your needs, or use two molecular sieve composite ca

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
  • Hydrocracking process for flexibly producing diesel oil
  • Hydrocracking process for flexibly producing diesel oil
  • Hydrocracking process for flexibly producing diesel oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-3

[0047] Protective agents FZC-100, FZC-105 and FZC106 are hydrogenation protective agents developed and produced by Sinopec Fushun Petrochemical Research Institute; catalyst FF-56 is developed and produced by Sinopec Fushun Petrochemical Research Institute Hydrotreating catalyst; Catalyst FC-32 is a hydrogenation upgrading catalyst developed and produced by Fushun Petrochemical Research Institute of China Petrochemical Corporation, containing Y-type molecular sieve; Catalyst FC-20 is a research and development product of Fushun Petrochemical Research The hydroisomerization cracking catalyst developed and produced by the Institute contains β-type molecular sieves.

[0048] Table 1 Main properties of wax oil feedstock

[0049]

[0050] Table 2 process conditions

[0051]

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 hydrocracking process for flexibly producing diesel oil. A wax oil raw material is subjected to hydrogenation pretreatment and then enters a hydrocracking reactor; the obtained hydrocracked material is divided into two streams; one stream enters a hot high-pressure separator to be separated to obtain a gas phase and a liquid phase; one hydrocracked material stream which does not enter the high-pressure separator is mixed with the gas phase separated by the hot high-pressure separator, and the mixture is subjected to gas-liquid separation and fractionation to obtain hydrocracked naphtha, aviation kerosene, diesel oil and tail oil; the liquid phase obtained through separation by the hot high-pressure separator is mixed with a part or all of the hydrocracking tail oil and then mixed with hydrogen, the mixture is subjected to a hydroisomerization cracking reaction, and an obtained hydroisomerization cracking material is subjected to gas-liquid separation and fractionation to obtain hydroisomerization cracked naphtha, aviation kerosene, diesel oil and tail oil. The invention provides, for the first time, the hydrocracking process for simultaneously producing more than two aviation kerosene, diesel oil and tail oil products with different specifications on one set of hydrogenation process equipment, particularly diesel oil products with different condensation points.

Description

technical field [0001] The invention belongs to the field of petroleum refining, and in particular relates to a hydrocracking process for flexibly producing high-quality naphtha, jet fuel, diesel oil and tail oil products of different properties from wax oil. Background technique [0002] Hydrogenation technology is an important processing method for lightening heavy oil and upgrading the quality of light oil. Hydrocracking technology has developed rapidly due to the advantages of strong feed oil adaptability, good product flexibility, high liquid product yield, and high product quality. The existing hydrocracking technology can be divided into three types according to the processing flow: one-stage series hydrocracking process, single-stage hydrocracking process and two-stage hydrocracking process. According to whether the tail oil is recycled or not, it can be divided into three types: one-way one-pass process, partial cycle process and full cycle process. Hydrocracking ...

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
IPC IPC(8): C10G67/00
CPCC10G67/00C10G2400/04C10G2400/10
Inventor 刘涛张学辉白振民李宝忠黄新露曾榕辉
Owner CHINA PETROLEUM & CHEM CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap