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

Regular structure catalyst, preparation method and application thereof, and treatment method of incomplete regeneration flue gas

A technology of regular structure and regular structure carrier, applied in catalyst activation/preparation, gas treatment, chemical instruments and methods, etc., can solve the problem of low catalytic conversion activity, achieve high catalytic conversion activity, simple preparation method, and be conducive to catalysis The effect of transforming activity

Active Publication Date: 2020-06-30
CHINA PETROLEUM & CHEM CORP +1
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] In the regeneration process of the prior art, especially in the incomplete regeneration process, the catalytic conversion activity of reduced nitrogen compounds such as NH3 is relatively low Low defects, the present invention provides a structured catalyst for reducing NOx emissions in flue gas, its preparation method and application, and a treatment method for incompletely regenerated flue gas

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
  • Regular structure catalyst, preparation method and application thereof, and treatment method of incomplete regeneration flue gas
  • Regular structure catalyst, preparation method and application thereof, and treatment method of incomplete regeneration flue gas
  • Regular structure catalyst, preparation method and application thereof, and treatment method of incomplete regeneration flue gas

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0099] (1) Add 262g pseudo-boehmite to 1.42kg deionized water to make a slurry and disperse, then add 23.8mL hydrochloric acid to acidify for 15min to obtain bauxite colloid. The iron nitrate (as Fe 2 O 3 Calculated) 6g, cobalt nitrate (in Co 2 O 3 Count) 6g, KMnO 4 (Calculated by MnO) 10g, add 350mL water and stir until fully dissolved, add bauxite colloid to it, stir for 15min to obtain the first solution; add 10g MgO to 30g water, stir for 10min, add to the first solution, stir for 20min Afterwards, the active component coating slurry is obtained;

[0100] (2) Use the active component coating slurry obtained in step (1) to coat the cordierite honeycomb carrier (the carrier pore density is 400 pores / square inch, the cross-section opening rate is 70%, and the pore shape is square). Dry (100℃, 4h), then transfer to a tube furnace, and pass in CO / N with a CO concentration of 10% by volume at a flow rate of 100mL / min 2 The mixed gas is treated at 600°C for 1.5h to obtain a coating o...

Embodiment 2

[0105] (1) Add 253g pseudo-boehmite into 1.37kg deionized water for beating and dispersing, and then add 22.9mL hydrochloric acid to acidify for 15min to obtain bauxite colloid. The ferric nitrate (as Fe 2 O 3 Calculated) 10g, cobalt nitrate (in Co 2 O 3 Count) 6g, KMnO 4 (Calculated by MnO) 6g was added to 350mL of water and stirred until fully dissolved, the bauxite colloid was added to it, stirred for 15min to obtain the first solution; 16g MgO was added to 48g of water, stirred for 10min, then added to the first solution, stirred for 20min , Obtain the active component coating slurry;

[0106] (2) Use the active component coating slurry obtained in step (1) to coat the cordierite honeycomb carrier (the carrier pore density is 400 pores / square inch, the cross-section opening rate is 70%, and the pore shape is square). Dry (100℃, 4h), then transfer to a tube furnace, and pass in CO / N with a CO concentration of 10% by volume at a flow rate of 100mL / min 2 The mixed gas was treated...

Embodiment 3

[0110] (1) Add 209g pseudo-boehmite into 1.13kg deionized water to make a slurry and disperse, and then add 19.0mL hydrochloric acid to acidify for 15min to obtain bauxite colloid. The iron nitrate (as Fe 2 O 3 Calculated) 20g, cobalt nitrate (in Co 2 O 3 Total) 12g, KMnO 4 (Calculated by MnO) add 10g into 350mL water and stir until fully dissolved, add bauxite colloid to it, stir for 15min to obtain the first solution; add 24g MgO to 72g water, stir for 10min, add to the first solution, stir for 20min , Obtain the active component coating slurry;

[0111] (2) Use the active component coating slurry obtained in step (1) to coat the cordierite honeycomb carrier (the carrier pore density is 400 pores / square inch, the cross-section opening rate is 70%, and the pore shape is square). Dry (100℃, 4h), then transfer to a tube furnace, and pass in CO / N with a CO concentration of 10% by volume at a flow rate of 100mL / min 2 The mixed gas is treated at 650°C for 1 hour to obtain a coating of...

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

PropertyMeasurementUnit
porosityaaaaaaaaaa
Login to View More

Abstract

The invention relates to the field of catalytic cracking, the invention discloses a regular structure catalyst for reducing NOx emission in flue gas, a preparation method and application of the regular structure catalyst and a treatment method of incomplete regeneration flue gas. The catalyst comprises: a regular structure carrier and an active component coating, the active component coating contains an active metal component and a matrix; wherein the active metal component comprises a first metal element, a second metal element and a third metal element; wherein the first metal element comprises Fe and Co, in terms of oxide, the weight ratio of Fe to Co is 1: (0.05-20), the second metal element is selected from at least one of IA group metal elements and / or IIA group metal elements, and the third metal element is selected from at least one of IB-VIIB group non-noble metal elements. The catalyst provided by the invention has high catalytic conversion activity on reduced nitrides, the preparation method is simple, and when the catalyst is used in a catalytic cracking process, NOx emission in catalytic cracking incomplete regeneration flue gas can be effectively reduced.

Description

Technical field [0001] The invention relates to the field of catalytic cracking, in particular to a regular structure catalyst for reducing NOx emissions in flue gas, a preparation method and application thereof, and a treatment method for incompletely regenerated flue gas. Background technique [0002] Rising crude oil prices have greatly increased the processing costs of refineries. On the one hand, refineries reduce costs by purchasing low-priced inferior oil; on the other hand, they increase economic benefits by deep processing heavy oil. As an important method of heavy oil processing in refineries, catalytic cracking has a pivotal position in refineries. It is not only the main means for the balance of heavy oil and the production of clean fuels, but also the focus of energy conservation and efficiency in refineries. Catalytic cracking is a fast catalytic reaction system in which the catalyst is rapidly deactivated. Solving the problem of catalyst regeneration has always bee...

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): B01J23/889B01J37/02B01J35/04B01D53/86B01D53/56
CPCB01J23/8892B01J37/0215B01D53/8628B01D2258/0283B01J35/56Y02C20/20
Inventor 宋海涛姜秋桥田辉平林伟严加松孙言王鹏张久顺达志坚
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