NOx Removal Performance on Self-Propagating High-Temperature Synthesis Prepared TiCe0.2W0.2Ox Catalyst

Abstract

Abstract:

In order to broaden the temperature window of nitrogen oxide removal efficiency of selective catalytic reduction （SCR） catalyst, the research of Ti-Ce-W mixed oxide catalysts was conducted. Among a series of Ti-Ce-W mixed oxide catalysts prepared by SHS (self-propagating high-temperature synthesis) method, catalyst with n(W)∶n(Ti)=0.2(n is the amount of substance) showed a 100% NO removal efficiency from 200 to 440 ℃ and 100% N2 selectivity below 400 ℃. The SCR characteristic of TiC0.2W0.2Ox was also tested under high GHSV( gas hourly space velocity) of 11 400 h-1. Besides by directly deposit the catalyst on cordierite carrier, a 95% NO removal efficiency and a 100% N2 selectivity from 250 to 450 ℃ were obtained.

Key words:selective catalytic reduction （SCR）,nitrogen oxide,self-propagating hightemperature synthesis (SHS),cordierite carrier； diesel

CLC Number:

TK 414.5

YANG Yang,LIN He,CHEN Ting,HUANG Zhen. NOx Removal Performance on Self-Propagating High-Temperature Synthesis Prepared TiCe0.2W0.2Ox Catalyst[J]. Journal of Shanghai Jiaotong University, 2014, 48(06): 761-766.

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