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

Double-riser catalytic cracking device for lowering sulfur content in catalytically cracked gasoline

A catalytic cracking unit, catalytic cracked gasoline technology, applied in chemical instruments and methods, chemical/physical processes, multi-stage series-connected refining and cracking process treatment, etc., can solve the problem of high sulfur content in catalytic cracked gasoline, and achieve product distribution Good, gasoline octane improvement effect

Active Publication Date: 2007-02-07
SINOPEC LUOYANG PETROCHEM ENG CORP
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: the problem that the sulfur content of the catalytic cracked gasoline produced by the existing conventional catalytic cracking unit is generally high

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
  • Double-riser catalytic cracking device for lowering sulfur content in catalytically cracked gasoline

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] in such as figure 1 Experiments were carried out on the double riser catalytic cracking test device shown. The ratio of the inner diameter D of the bed reactor to the inner diameter of the gasoline riser reactor is 3.0, the length L of the bed reactor is 1 / 6 of the length of the gasoline riser reactor, and the top outlet of the bed reactor reaches the gasoline riser The vertical distance a of the center of the reactor lifting gas inlet is 1 / 10 of the length L of the bed reactor. The heavy oil riser reactor processing pipe transports mixed heavy oil (sulfur content is 0.78w%), and the processing capacity is 30kg / d (kg / day); the gasoline feed of the gasoline riser reactor is the gasoline produced by the heavy oil riser reactor (the sulfur content is 0.097w%), and the treatment capacity is 15kg / d. The pre-lifting medium of the bed reactor is catalytic cracking dry gas.

[0022] The catalyst used is the desulfurization catalytic cracking catalyst of the present invention...

Embodiment 2

[0028] According to Example 1, the difference is that the catalyst residence time in the bed reactor is 80s. The operating conditions and main properties of gasoline are listed in Table 1.

Embodiment 3

[0030] According to Example 1, the difference is that the catalyst residence time in the bed reactor is 100s. The operating conditions and main properties of gasoline are listed in Table 1.

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

This invention discloses double riser catalytic cracking device used to decrease sulfur content in catalytically cracked gasoline in petroleum processing field and solve the high sulfur content problem in existing technique. The device comprises heavy oil riser reactor (12) and gas riser reactor (4); set expanding- structural cylinder layer-shape reactor (2) below the raised air inlet (141); set pre-rise medium inlet (101) on vertical pipe below the layer-shape reactor; and use desulfurization catalytic cracking catalyst. It can decrease the sulfur content greatly and the olefin content, and increase octane number of gas.

Description

technical field [0001] The invention relates to the field of hydrocarbon oil refining, in particular to a double riser catalytic cracking device for reducing the sulfur content of catalytic cracked gasoline. Background technique [0002] With the increasing awareness of environmental protection, environmental protection departments have increasingly stringent requirements on the sulfur content of finished gasoline. FCC gasoline accounts for more than 80% of my country's finished gasoline; as the raw materials processed by oil refineries become heavier and worse, when conventional catalytic cracking units (with a single heavy oil riser reactor) and catalysts are used for processing, the production of The sulfur content of catalytically cracked gasoline is generally high, so the problem of gasoline sulfur content compliance is facing a severe situation. At present, various research institutes at home and abroad have developed various technologies for reducing the sulfur conten...

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): B01J8/06B01J8/08C10G55/06
Inventor 闫鸿飞刘金龙王文柯张庆宇汤海涛李玖云陈曼桥
Owner SINOPEC LUOYANG PETROCHEM ENG 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