Patent · US Active

Ce-based composite oxide catalyst, preparation method and application thereof

US9498770B2 · kind B2 · utility

1Cited by

4References

16Claims

0Family size

Assignee

RESEARCH CENTER FOR ECO-ENVIRONMENTAL SCINCES, CHINESE ACADEMY OF SCIENCES · CN

Inventors

Hong He · Schenectady, US
Wenpo Shan · Beijing, CN
Fudong Liu · Tianjin, CN
Xiaoyan Shi · Beijing, CN
Changbin Zhang · 韩家川村, CN
Shaoxin Wang · Beijing, CN

Key dates

Filing date	Nov 9, 2011
Grant date	Nov 22, 2016
Priority date	—
Expiry date	Nov 21, 2031

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/12
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

Disclosed is a Ce-based composite oxide catalyst for selective catalytic reducing nitrogen oxides with ammonia, which comprises Ce oxide and at least one oxide of transition metal except Ce. The Ce-based composite oxide catalyst is prepared by a simple method which uses non-toxic and harmless raw materials, and it has the following advantages: high catalytic activity, and excellent selectivity for generating nitrogen etc. The catalyst can be applied in catalytic cleaning plant for nitrogen oxides from mobile and stationary sources.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.