TY - JOUR
T1 - Component optimization and performance of Ti-Si-Ox deNOx catalyst carrier
AU - Liu, Qing
AU - Jin, Qijie
AU - Sui, Guorong
AU - Shen, Yuesong
AU - Zhu, Shemin
AU - Qiu, Tai
N1 - Publisher Copyright:
© 2017, Science Press. All right reserved.
PY - 2017/10/5
Y1 - 2017/10/5
N2 - A series of Ti-Si-Ox catalyst carriers were prepared by extrusion method and tested for selective catalytic reduction (SCR) of NO with NH3.The influence of component proportion, specific surface area and total acid quantity of Ti-Si-Ox catalyst carriers on catalytic activity and compressive strength was investigated. These catalysts were characterized by XRD, N2-BET, Py-IR and XPS respectively. Results showed that the catalyst carrier exhibited the highest catalytic performance and appropriate compressive strength when the Ti/Si molar ratio was equal to 9:1.Under the GHSV of 5 000 h-1, the Ti0.9Si0.1Ox obtained 99.0% NO conversion at 400℃ and the light-off temperature decreased to 260℃. The specific surface area was 75.4 m2·g-1, the most probable meso pore distribution was 8.1 nm and the axial compressive strength was 1.4 MPa. In other words, the Ti-Si-Ox catalyst carrier had a good application prospect of industry.
AB - A series of Ti-Si-Ox catalyst carriers were prepared by extrusion method and tested for selective catalytic reduction (SCR) of NO with NH3.The influence of component proportion, specific surface area and total acid quantity of Ti-Si-Ox catalyst carriers on catalytic activity and compressive strength was investigated. These catalysts were characterized by XRD, N2-BET, Py-IR and XPS respectively. Results showed that the catalyst carrier exhibited the highest catalytic performance and appropriate compressive strength when the Ti/Si molar ratio was equal to 9:1.Under the GHSV of 5 000 h-1, the Ti0.9Si0.1Ox obtained 99.0% NO conversion at 400℃ and the light-off temperature decreased to 260℃. The specific surface area was 75.4 m2·g-1, the most probable meso pore distribution was 8.1 nm and the axial compressive strength was 1.4 MPa. In other words, the Ti-Si-Ox catalyst carrier had a good application prospect of industry.
KW - Component optimization
KW - Flue gas denitrification
KW - Performance study
KW - Ti-Si-O catalyst carrier
UR - http://www.scopus.com/inward/record.url?scp=85039966010&partnerID=8YFLogxK
U2 - 10.12030/j.cjee.201611064
DO - 10.12030/j.cjee.201611064
M3 - 文章
AN - SCOPUS:85039966010
SN - 1673-9108
VL - 11
SP - 5495
EP - 5501
JO - Chinese Journal of Environmental Engineering
JF - Chinese Journal of Environmental Engineering
IS - 10
ER -