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

Templated catalyst composition and associated method

a catalyst and composition technology, applied in the field of catalyst composition, can solve the problems of poor nox reduction with concomitant carbon deposition, unsatisfactory reaction kinetics,

Inactive Publication Date: 2010-08-05
GENERAL ELECTRIC CO
View PDF11 Cites 23 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of reaction may not have desirable kinetics.
However, reductants containing aromatics like those present in Diesel fuel, lead to poor NOx reduction with concomitant carbon deposition.

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
  • Templated catalyst composition and associated method
  • Templated catalyst composition and associated method
  • Templated catalyst composition and associated method

Examples

Experimental program
Comparison scheme
Effect test

examples

Preparation of Material

[0043]Templated alumina is produced as follows, for example. Solution 1 is formed by combining ethylaetoacetate (26.5 g, 0.2 mol), TRITON X-114 (85g, ca. 0.15 mol) and 2-butanol (500 mL) in a 5-L, 3-neck flask equipped with an addition funnel, a condenser, and a mechanical stirrer. Solution 2 is composed of Al(O-secBu)3 (500 g, 2 mol) and 2-BuOH (2 L). Solution 3 is composed of water (75 mL, 4 mol) and 2-BuOH (850 mL).

[0044]Solution 2 is added to Solution 1 while stirring, and is held at ambient temperature for 30 min. Solution 3 is added to solutions 1 and 2 via an addition funnel over about 90 minutes. Mechanical stirring is continued at ambient temperature for 3 hours and then the contents are heated to about reflux for about 20 to about 24 hours.

[0045]The contents are cooled and filtered on a #50 paper filter and washed with ethanol. The obtained white solid is dried in vacuo, in a vacuum oven at 80 degrees Celsius. The solid is subjected to Soxhlet extrac...

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
diameteraaaaaaaaaa
diameteraaaaaaaaaa
temperatureaaaaaaaaaa
Login to View More

Abstract

A composition includes a templated metal oxide substrate having a plurality of pores and a catalyst material includes silver. The composition under H2 at 30 degrees Celsius, the composition at a wavelength that is in a range of from about 350 nm to about 500 nm has a VIS-UV absorbance intensity that is at least 20 percent less than a standard silver alumina catalyst (Ag STD). The standard alumina is Norton alumina, and which has the same amount of silver by weight.

Description

BACKGROUND[0001]1. Technical Field[0002]The invention includes embodiments that relate to a catalyst composition. The invention includes embodiments that relate to a method of making the catalyst composition and a method of using the catalyst composition for reducing nitrogen oxides.[0003]2. Discussion of Art[0004]Currently, lean NOx traps may be used in exhaust gas treatment systems. In these, NOx reduction catalysts and methods include the alkali and alkali earth metal in the catalyst composition where the alkali metal or the alkali earth metal absorbs the NOx and then the reductant reduces NOx to nitrogen. This type of reaction may not have desirable kinetics.[0005]Silver-containing alumina is known for selective catalytic reduction (SCR) of NOx using linear hydrocarbon reductants. However, reductants containing aromatics like those present in Diesel fuel, lead to poor NOx reduction with concomitant carbon deposition.[0006]Therefore, it may be desirable to have a catalyst composi...

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(United States)
IPC IPC(8): B01D53/56B01J23/50B01J21/04B01J21/08B01J35/00
CPCB01D53/9418B01D2255/104B01J23/50B01J35/002B01J37/036B01J37/0018B01J37/0201B01J37/033B01J35/023B01J35/30B01J35/40
Inventor LEWIS, LARRY NEILHANCU, DANSICLOVAN, OLTEA PUICAYIN, MING
Owner GENERAL ELECTRIC CO
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