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

Catalytic conversion method and apparatus

A catalytic conversion method and catalyst technology, applied in the field of catalytic conversion of petroleum hydrocarbons, can solve problems such as poor product selectivity, unfavorable regeneration, large temperature difference in the reaction process, etc., and achieve low contact temperature, increased octane number, and gasoline olefin content Reduced effect

Inactive Publication Date: 2007-01-03
石宝珍
View PDF7 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the existing gasoline reaction process, on the one hand, because gasoline is directly in contact with the high-temperature regenerant, the temperature difference in the reaction process is relatively large, resulting in poor product selectivity; It is well utilized, but directly sent to the regenerator, which is not good for regeneration

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
  • Catalytic conversion method and apparatus
  • Catalytic conversion method and apparatus
  • Catalytic conversion method and apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Example 1. The reaction materials are: pipeline transportation of heavy oil at atmospheric pressure, 100t / h heavy oil, gasoline feedstock is heavy oil reaction self-produced gasoline; heavy oil is preheated at 220°C, gasoline is at 40°C; the reactor is in the form of a riser; the heavy oil is divided into four routes After entering the riser, the gasoline enters the reactor in two ways; the reaction temperature of heavy oil is 500°C, and the reaction time is 2.5s; the reaction temperature of gasoline is 430°C, and the reaction time is 3s; The catalyst temperature is 550°C; the regeneration temperature is 690°C; in this embodiment, all the catalyst after the gasoline reaction enters the bottom of the heavy oil riser; the catalyst after the gasoline reaction enters the heavy oil riser after being stripped.

[0034] This embodiment uses the device see figure 1 . In this device, beside the heavy oil reactor 10 of the heavy oil reaction-regeneration unit, a gasoline reactor...

Embodiment 2

[0037] Embodiment 2, the reaction material is: Daqing atmospheric heavy oil, 100t / h heavy oil, gasoline feedstock is heavy oil reaction self-produced gasoline; heavy oil preheating 220 ℃, gasoline 40 ℃; heavy oil reactor is riser form, gasoline reactor is The gasification section of the riser and the fluidized bed are connected in series; the heavy oil enters the riser in four ways, and the gasoline enters the reactor in two ways; the reaction temperature of heavy oil is 500°C, and the reaction time is 2.5s; the reaction temperature of gasoline is 400°C, and the reaction time is 6s, of which The residence time of gasoline in the gasification section is 0.5s, the residence time in the middle fluidized bed is 4s, and the residence time in the riser above the fluidized bed is 1.5s; the superficial flow velocity of oil and gas in the fluidized bed is 1.5m / s; The catalyst mixing temperature before the tube reaction is 620°C, and the catalyst temperature before the reaction in the ga...

Embodiment 3

[0041] Embodiment 3. In the device of this embodiment, the upper end of the catalyst delivery pipe 14 is directly connected to the lower part of the gasoline reaction settler 40 . Others are the same as embodiment 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

The present invention is catalytic conversion method and apparatus and belongs to the field of petroleum hydrocarbon catalytically converting technology. The catalytic conversion method is that beside the heavy oil reactor of heavy oil reaction-regeneration apparatus, one gasoline reactor sharing the regenerator is connected in parallel, so that catalyst after passing through the gasoline reactor can enter to the heavy oil reactor for being mixed with the regenerated catalyst from the regenerator before reacting with heavy oil. There are one settler set in the outlet of the gasoline reactor and one catalyst conveying pipe set between the settler and the heavy oil reactor. The present invention can raise catalytic cracking yield, improve product quality and, especially, lower the content of olefin in gasoline.

Description

technical field [0001] The invention belongs to the technical field of catalytic conversion of petroleum hydrocarbons, and in particular relates to a catalytic conversion method and device capable of increasing catalytic cracking yield, improving product quality, and especially reducing olefin content in gasoline. Background technique [0002] Catalytic cracking is an important secondary processing method for petroleum heavy fractions. Especially in China, about 80% of gasoline comes from catalytic cracking units. How to improve the efficiency of catalytic cracking unit and improve product quality are very important. Conventional catalytic cracking methods and devices use riser reactors, which have obvious deficiencies in the reaction process. Firstly, the temperature of the regenerant is high, which limits the ratio of reactant to oil and the preheating temperature of heavy oil; secondly, the efficiency of the second half of the riser reactor is low; in addition, the prod...

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): C10G63/04
Inventor 石宝珍
Owner 石宝珍
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