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

A catalyst regeneration method for reducing carbon dioxide emissions

A carbon dioxide and catalyst technology, which is applied in the regeneration field of carbon-containing catalysts, can solve problems such as high coke and dry gas yields, and achieve the effects of improving coking efficiency, reducing crushing, and reducing size

Active Publication Date: 2016-01-20
CHINA PETROLEUM & CHEM CORP +1
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the highest activity recovery of the regenerated catalyst can be achieved during regeneration, but when the regenerated catalyst participates in the reaction, it may cause high coke and dry gas yields due to its high activity, which is undesirable

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 catalyst regeneration method for reducing carbon dioxide emissions
  • A catalyst regeneration method for reducing carbon dioxide emissions
  • A catalyst regeneration method for reducing carbon dioxide emissions

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0033] The embodiment is carried out on a catalytic cracking demonstration unit, as shown in the accompanying drawing. The demonstration plant does not have a flue gas energy recovery system and a carbon dioxide separation system. Wherein the internal diameter of the charred tank is 20 cm, and the internal diameter of the dense phase bed is 50 cm. The catalyst is regenerated according to the regeneration method proposed by the present invention, and pure oxygen gas is fed into the coke pot and the dense-phase bed respectively, and at the same time, the flue gas from the cyclone separation system of the regenerator is returned to the bottom of the dense-phase bed. The temperature of the scorching pot is 580°C, and the temperature of the dense bed of the regenerator is 640°C. The residence time of the catalyst in the burnt pot was 45 seconds, and the average residence time in the dense bed was 110 seconds. The superficial linear velocity of gas in the charred tank is 1.51m / s, ...

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 catalyst regeneration method capable of reducing carbon dioxide discharge. The catalyst regeneration method is characterized in that a catalyst with coke is subjected to pure oxygen-based partial regeneration in a coke combustion tank, and the partially regenerated catalyst goes through a macroporous distribution plate, then enters into a dense bed of a regenerator and then is subjected to residual coke burning; the dense bed is provided with a cooler for controlling a temperature of the dense bed; after cyclone separation, flue gas orderly enters into a flue gas energy recovery system and a carbon dioxide separation system and after carbon dioxide separation, a capturing process is carried out; and the regenerated catalyst is directly returned into a reactor for recycle. The catalyst regeneration method realizes complete regeneration of a catalyst and uniform distribution of catalyst activity so that coke as a catalytic cracking by-product and a dry gas yield are reduced. The catalyst regeneration method greatly reduces carbon emission and even realizes zero emission of carbon.

Description

technical field [0001] The invention relates to a method for regenerating carbon-containing catalysts in hydrocarbon processing. More specifically, the present invention relates to a catalyst regeneration method for realizing carbon dioxide emission reduction in the catalytic cracking process of heavy oil. Background technique [0002] Today, the development of the global oil refining industry is facing many challenges such as oil price fluctuations, the trend of worsening crude oil quality, improved oil product quality specifications, stricter requirements for energy conservation and emission reduction, and the rapid development of biofuels. Reducing carbon dioxide emissions and mitigating climate change have become the key factors for the oil refining industry to transform the economy. The way of growth and the only way to maintain sustainable development. In October 2009, the country announced the action goal of controlling greenhouse gas emissions, that is, by 2020, the...

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): B01J29/90B01J38/20C10G11/00C10G11/14C01B31/20C01B32/50
CPCY02A50/20Y02P20/584Y02P30/40
Inventor 许友好王新龚剑洪崔守业
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