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

Particulate combustion catalyst

A technology of burning catalysts and catalysts, which is applied in the directions of catalyst activation/preparation, physical/chemical process catalysts, and separation of dispersed particles, which can solve the problems of cost increase and achieve excellent heat resistance

Inactive Publication Date: 2012-05-23
MITSUI MINING & SMELTING CO LTD
View PDF10 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this continuous regeneration method, in order to oxidize NO to form NO 2 However, it is necessary to install an oxidation catalyst such as Pt upstream of the DPF, which increases the cost

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
  • Particulate combustion catalyst
  • Particulate combustion catalyst
  • Particulate combustion catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～5、 comparative example 1～4

[0040] A silver nitrate aqueous solution (Comparative Example 1), a silver nitrate aqueous solution and a palladium nitrate aqueous solution having an Ag atom:Pd atom=95:5 mixed solution (Comparative Example 2) at 5 mass % in terms of metal elements relative to the mass of the support ), Ag atom of aqueous silver nitrate solution and palladium nitrate aqueous solution: the mixed solution of Pd atom=90:10 (comparative example 3), the Ag atom of silver nitrate aqueous solution and palladium nitrate aqueous solution: the mixed solution of Pd atom=80:20 (implementation Example 1), silver nitrate aqueous solution and palladium nitrate aqueous solution Ag atom: Pd atom=70: 30 mixed solution (embodiment 2), silver nitrate aqueous solution and palladium nitrate aqueous solution Ag atom: Pd atom = 50: 50 mixed solution (Example 3), Ag atom of silver nitrate aqueous solution and palladium nitrate aqueous solution: the mixed solution of Pd atom=30:70 (embodiment 4), palladium nitrate aque...

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

Disclosed is a particulate combustion catalyst in which a catalyst component supported by a carrier is composed of an alloy that comprises 85-20 at% of Ag and 15-80 at% of at least one noble metal that is selected from the group consisting of Pd, Pt and Au. The particulate combustion catalyst has excellent heat resistance, and is capable of oxidizing and removing soot at low temperatures. In addition, the particulate combustion catalyst is capable of oxidizing and removing soot at low temperatures regardless of the NOx concentration in an exhaust gas since an oxidation reaction proceeds even when there is oxygen only. Also disclosed are: a method for producing the particulate combustion catalyst; a particulate filter which is coated with the particulate combustion catalyst; a method for producing the particulate filter; and an exhaust gas purifying apparatus which comprises the particulate filter that is coated with the particulate combustion catalyst.

Description

technical field [0001] The present invention relates to a particulate combustion catalyst, a method for producing the particulate combustion catalyst, a particulate filter, a method for producing the particulate filter, and an exhaust purification device, and more particularly to a particulate combustion catalyst capable of oxidizing and removing particulates discharged from a diesel internal combustion engine . A method for producing the particulate combustion catalyst, a particulate filter coated with the particulate combustion catalyst, and an exhaust purification device including the particulate filter coated with the particulate combustion catalyst. Background technique [0002] Exhaust gas from diesel engines contains nitrogen oxides (NOx ) or particulates (particulate matter), which are major causes of air pollution if released directly into the atmosphere. Accordingly, these substance requirements are substantially restricted. As an effective means for removing part...

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): B01J23/66B01D39/14B01D53/94B01J37/02B01J37/04B01J37/08F01N3/02
CPCB01J23/52F01N3/035B01J37/0201B01D2255/1021B01J23/50B01D53/944B01J37/0215B01J23/42F01N2510/065B01J35/04B01J35/002B01D39/2082B01J23/66B01D39/2034B01D2239/0478B01D2255/1023B01D2255/407B01D2255/106B01D2255/104B01J23/44B01J37/0009B01J21/066B01J23/002B01J2523/00B01J2523/3706B01J2523/3712B01J2523/3725B01J2523/48B01J35/30B01J35/56
Inventor 青木晃浅沼贵仁
Owner MITSUI MINING & SMELTING CO LTD
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