Material and exhaust gas system and method for using the same

Patent metadata

Field	Value
Publication number	US-9586193-B2
Application number	US-201313945951-A
Country	US
Kind code	B2
Filing date	Jul 19, 2013
Priority date	Aug 1, 2012
Publication date	Mar 7, 2017
Grant date	Mar 7, 2017

Abstract

A material is described of formula Na x M y Al a Si b O δ with Face Centered Cubic (fcc) lattices forming F-4 3 m cubic structure, wherein M is at least one of lithium, potassium, rubidium, caesium, vanadium, chromium, iron, cobalt, nickel, ruthenium, rhodium, palladium, silver, osmium, iridium, platinum, gold, and cerium; 0<x+y≦22/3; wherein when y=0, 4<x≦/3, when 0<y≦/3, 0≦x<22/3, and when M is potassium, x>0; 1≦a≦3; 1≦b≦3; and 0<δ≦32/3. An exhaust gas system comprising the material and a method are also described herein.

First claim

The invention claimed is:

1. A material of formula I, having face centered cubic (FCC) lattices forming F-43 m cubic structure,
Na x M y Al a Si b O δ    I,

wherein
M is at least one of lithium, potassium, rubidium, caesium, vanadium, chromium, iron, cobalt, nickel, ruthenium, rhodium, palladium, silver, osmium, iridium, platinum, gold, and cerium;
0<x+y≦22/3; wherein 0<y≦22/3, 0≦x<22/3, and when M is potassium, 3.2<x≦3.8 and 0.2≦y≦0.8;
1≦a≦3; 1≦b≦3; and 0<δ≦32/3.

2. The material of claim 1 , wherein M is at least one of potassium, lithium, cerium, and cobalt.

3. The material of claim 1 , wherein M is potassium and 3.2≦x≦3.8 and 0.2≦y≦0.8.

4. The material of claim 1 , wherein M is lithium and x=3.8 and y=0.2.

5. The material of claim 1 , wherein M is cobalt and x=3.8 and y=0.2.

6. The material of claim 1 , wherein M is cerium and 3.8≦x≦3.9996 and 0.0004≦y≦0.2.

7. The material of claim 1 , being of formula: Na 3.8 K 0.2 Al 2 Si 2 O 9 , Na 3.6 K 0.4 Al 2 Si 2 O 9 , Na 3.2 K 0.8 Al 2 Si 2 O 9 , Na 3.8 Li 0.2 Al 2 Si 2 O 9 , Na 3.8 Ce 0.2 Al 2 Si 2 O 9.3 , Na 3.998 Ce 0.002 Al 2 Si 2 O 9.003 , Na 3.9996 Ce 0.0004 Al 2 Si 2 O 9.0002 , Na 5 Al 2 Si 2 O 9.5 , Na 3.72 K 0.24 Al 2 Si 1.92 O 8.82 , or Na 3.8 Co 0.2 Al 2 Si 2 O 9.2 .

8. An exhaust gas system comprising the material of claim 1 .

9. The exhaust gas system of claim 8 , comprising a diesel particulate filter receiving diesel exhaust gas from a diesel engine and coated with the material of claim 1 .

10. The exhaust gas system of claim 8 , wherein M is at least one of potassium, lithium, cerium, cobalt, iron, and vanadium.

11. The exhaust gas system of claim 8 , wherein 3.2≦x≦3.9996 and 0.0004≦y≦0.8.

12. The exhaust gas system of claim 8 , wherein M is potassium and 3.2≦x≦3.8 and 0.2≦y≦0.8.

13. The exhaust gas system of claim 8 , wherein the material is of formula: Na 3.8 K 0.2 Al 2 Si 2 O 9 , Na 3.6 K 0.4 Al 2 Si 2 O 9 , Na 3.2 K 0.8 Al 2 Si 2 O 9 , Na 3.8 Li 0.2 Al 2 Si 2 O 9 , Na 3.8 Ce 0.2 Al 2 Si 2 O 9.3 , Na 3.998 Ce 0.002 Al 2 Si 2 O 9.003 , Na 5 Al 2 Si 2 O 9.5 , Na 3.9996 Ce 0.00004 Al 2 Si 2 O 9.0002 , Na 3.72 K 0.24 Al 2 Si 2 O 8.82 , or Na 3.8 Co 0.2 Al 2 Si 2 O 9.2 .

14. A method comprising:
contacting a carbonaceous material with an effective amount of the material of claim 1 to initiate the oxidization of the carbonaceous material at a first oxidization initiation temperature;
wherein the first oxidization initiation temperature is lower than an oxidization initiation temperature of the carbonaceous material when a catalyst is not present.

15. The method of claim 14 , wherein the contacting is in an environment comprising an oxidant.

16. The method of claim 14 , wherein the contacting is in an environment comprising at least one of oxygen, air, steam and nitrogen oxide.

17. The method of claim 14 , wherein M is at least one of potassium, lithium, cerium, and cobalt.

18. The method of claim 14 , wherein the material is of formula: Na 3.8 K 0.2 Al 2 Si 2 O 9 , Na 3.6 K 0.4 Al 2 Si 2 O 9 , Na 3.2 K 0.8 Al 2 Si 2 O 9 , Na 3.8 Li 0.2 Al 2 Si 2 O 9 , Na 3.8 Ce 0.2 Al 2 Si 2 O 9.3 , Na 3.998 Ce 0.002 Al 2 Si 2 O 9.003 , Na 5 Al 2 Si 2 O 9.5 , Na 3.9996 Ce 0.0004 Al 2 Si 2 O 9.0002 , Na 3.72 K 0.24 Al 2 Si 1.92 O 8.82 or Na 3.8 Co 0.2 Al 2 Si 2 O 9.2 .

19. The method of claim 14 , wherein the carbonaceous material comprises at least one of hydrocarbon, carbon black and soot.

Assignees

• Gen Electric

Inventors

• Fu Qijia
• Zhang Xiao
• Lin Chuan
• Yang Youhao
• Norton Daniel
• Lewis Larry Neil
• Bao Xiaoying
• Corah Susan Elizabeth
• Dong Yu
• Wang Dejia
• Wang Shizhong

Classifications

• B01D2255/2022

  Potassium · CPC title

• B01J23/005 Primary

  Spinels · CPC title

• B01D2255/20746

  Cobalt · CPC title

• B01D2255/40

  Mixed oxides · CPC title

• B01D2255/2025

  Lithium · CPC title