TY - JOUR
T1 - Catalytic reduction of NO by CO with Cu-based and Mn-based catalysts
AU - Pan, Kuan Lun
AU - Young, Chyi Woei
AU - Pan, Guan Ting
AU - Chang, Moo Been
N1 - Publisher Copyright:
© 2019 Elsevier B.V.
PY - 2020/5/15
Y1 - 2020/5/15
N2 - Various Cu-based and Mn-based catalysts are prepared and evaluated for the reduction of NO with CO process. Cu-Ce-Fe-Co/TiO2 and Mn-Ce-Fe-Co/TiO2 show the best catalytic performance for the reduction of NO with CO process among Cu-based and Mn-based catalysts, respectively. The highest conversions of NO and CO achieved with Cu-Ce-Fe-Co/TiO2 reach 100% and 79%, respectively, with the operating temperature of 250 ℃, while 100% and 70% are achieved with Mn-Ce-Fe-Co/TiO2 for the gas streams containing 200 ppm NO and 200 ppm CO. The results reveal that both modified catalysts (e.g., Cu-Ce-Fe-Co/TiO2 and Mn-Ce-Fe-Co/TiO2) have good activities for CO + NO reaction. Overall, Cu-Ce-Fe-Co/TiO2 has better tolerance for O2, SO2 and H2O(g) than Mn-Ce-Fe-Co/TiO2. Good catalytic performance of Cu-Ce-Fe-Co/TiO2 toward NO reduction is attributed to its good surface properties, i.e., reducibility, oxygen mobility and more oxygen vacancies. Additionally, the apparent activation energy is calculated as 54.2 kJ/mol is calculated using Mars-Van Krevelen model for reduction of NO with CO process with Cu-Ce-Fe-Co/TiO2 as catalyst. Further, active component Cu-Ce-Fe-Co is loaded on activated carbon (AC) to form Cu-Ce-Fe-Co/AC, which is applied as catalyst for durability test. The results indicate that NO conversion achieved with Cu-Ce-Fe-Co/AC maintains at 100% during 240 min operation period, even in the simultaneous presence of O2, H2O(g) and SO2. Overall, this study demonstrates that Cu-based catalyst is promising for the reduction of NO with CO process.
AB - Various Cu-based and Mn-based catalysts are prepared and evaluated for the reduction of NO with CO process. Cu-Ce-Fe-Co/TiO2 and Mn-Ce-Fe-Co/TiO2 show the best catalytic performance for the reduction of NO with CO process among Cu-based and Mn-based catalysts, respectively. The highest conversions of NO and CO achieved with Cu-Ce-Fe-Co/TiO2 reach 100% and 79%, respectively, with the operating temperature of 250 ℃, while 100% and 70% are achieved with Mn-Ce-Fe-Co/TiO2 for the gas streams containing 200 ppm NO and 200 ppm CO. The results reveal that both modified catalysts (e.g., Cu-Ce-Fe-Co/TiO2 and Mn-Ce-Fe-Co/TiO2) have good activities for CO + NO reaction. Overall, Cu-Ce-Fe-Co/TiO2 has better tolerance for O2, SO2 and H2O(g) than Mn-Ce-Fe-Co/TiO2. Good catalytic performance of Cu-Ce-Fe-Co/TiO2 toward NO reduction is attributed to its good surface properties, i.e., reducibility, oxygen mobility and more oxygen vacancies. Additionally, the apparent activation energy is calculated as 54.2 kJ/mol is calculated using Mars-Van Krevelen model for reduction of NO with CO process with Cu-Ce-Fe-Co/TiO2 as catalyst. Further, active component Cu-Ce-Fe-Co is loaded on activated carbon (AC) to form Cu-Ce-Fe-Co/AC, which is applied as catalyst for durability test. The results indicate that NO conversion achieved with Cu-Ce-Fe-Co/AC maintains at 100% during 240 min operation period, even in the simultaneous presence of O2, H2O(g) and SO2. Overall, this study demonstrates that Cu-based catalyst is promising for the reduction of NO with CO process.
KW - Carbon monoxide (CO)
KW - Catalysis, nitrogen oxides (NO)
KW - NO reduction with CO
KW - Selective catalytic reduction (SCR)
UR - http://www.scopus.com/inward/record.url?scp=85071533594&partnerID=8YFLogxK
U2 - 10.1016/j.cattod.2019.08.038
DO - 10.1016/j.cattod.2019.08.038
M3 - 期刊論文
AN - SCOPUS:85071533594
SN - 0920-5861
VL - 348
SP - 15
EP - 25
JO - Catalysis Today
JF - Catalysis Today
ER -