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用于NH₃选择催化还原NO反应的新型Ce-P-O催化剂

A Novel Ce-P-O Catalyst for Selective Catalytic Reduction of NO with NH₃

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【Author】 LI Fei1,2,XIAO Dehai1,3,ZHANG Yibo1,2,WANG Deqiang1,2,PAN Xiqiang1,2,YANG Xiangguang1,3,* 1State Key Laboratory of Rare Earth Resource Utilization,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022,Jilin,China 2Graduate University of Chinese Academy of Sciences,Beijing 100049,China 3Laboratory of Green Chemistry and Process,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022,Jilin,China

【机构】中国科学院长春应用化学研究所稀土资源利用国家重点实验室；中国科学院研究生院；中国科学院长春应用化学研究所绿色化学与过程实验室；

【摘要】报道了一种新型的可用于氨选择催化还原氮氧化物的Ce-P-O催化剂.在空速为20000h-1,较宽的温度范围内经500oC焙烧的Ce-P-O催化剂上表现出了较高的NO转化率(可达到90%以上).与V-W-Ti催化剂相比,该催化剂具有一定的耐水蒸气和SO2能力以及较好的抗碱中毒性能.更多还原

【Abstract】 A novel Ce-P-O catalyst for the selective catalytic reduction of NO with NH3 was synthesized.The Ce-P-O catalyst was calcined at 500 °C and showed higher deNOx activity (NO conversion > 90%) within the temperature range of 300-500 °C and at GHSV=20 000 h-1.The NO conversion was not significantly affected by the presence of H2O and SO2.By comparison with the commercial V-W-Ti catalyst,the Ce-P-O catalyst exhibited better resistance to deactivation due to K2O poisoning.更多还原