欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
利用溶胶凝胶法制备CuO-CeO2-MnOX／r-Al2O3催化剂颗粒，在固定床上测试其催化脱硝活性。CuO-CeO2-MnOX／r-Al203催化剂在200～450℃范围内脱硝效率保持在70％以上。利用程序升温方法研究了催化剂对NH3的氧化性能，活性组分负载量增多，加强了催化剂对NH3氧化性能。红外表征显示NH3被吸附在催化剂的L酸位和B酸位。NO以多种硝酸盐物种在催化剂表面吸附。吸附态NH3参与SCR反应，但吸附态NO物种仅部分参加SCR反应。
英文摘要：
AbstractCuO-CeO2-MnOx/r-Al2O3 granular catalysts were synthesized by the sol-gel method. Performance of the CuO-CeO2-MnOx/r-Al2O3catalyst for the selective catalytic reduction （SCR） was explored in a fixed bed adsorption system. The optimum temperature ranges for SCR of NO over the CuO-CeO2-MnOx/r-Al2O3catalyst samples were 200～450℃. The catalysts maintained nearly 100% NO conversion at 350℃. Preliminary tests were carried out to study the behavior of NH3 over catalyst in the presence of oxygen. The catalysts in this experiment had relatively stronger oxidation property on NH3 which improved the activity at low temperature. NH3＋O2, NO＋O2 adsorption on catalyst and the transient response of NH3 and NO were investigated by the in situ diffuse reflectance infrared transform spectroscopy （DRIFT） to provide insight into the mechanism. It was found that the SCR reaction on the CuO-CeO2-MnOx/r-Al2O3 catalyst proceeded in accordance with the Eley-Rideal mechanism and the Langmuir- Hinshelwood hypothesis at the same time. The adsorbed NO may give some contribution to the highly catalytic activity.
同期刊论文项目
同项目期刊论文
Selective catalytic reduction of NO with NH3 over sol-gel-derived CuO-CeO2-MnOx/gamma-Al2O3 catalyst
Preparation, Characterization, and Application of Modified Chitosan Sorbents for Elemental Mercury R
Combustion Modeling of Blended Coal in a 300MW Tangentially-firing Boiler with a Three-mixture-fract
An Improved Petrov-Galerkin Spectral Collocation Solution for Linear Stability of Circular Jet, CMES
A Special Issue on 2009 Sino-Australian Symposium on Advanced Coal and Biomass Utilisation Technolog
An economic feasibility study of O2/CO2 recycle combustion technology based on existing coal-fired p
Relationship between nitrogenous species in coals and volatile nitrogen-containing yields during pyr
An investigation of the causes of the difference in coal particle ignition temperature between combu
Effect of cellulose, lignin, alkali and alkaline earth metallic species on biomass pyrolysis and gas
Physical quantity synergy in the field of turbulent heat transfer and its analysis for heat transfer
The effects of coal blending on the formation and properties of particulate matter during combustion
The Solution of Transient Riadative Transfer with Collimated Incident Serial Pulse in a Plane-Parall
Optimization of combustion based on introducing radiant energy signal in pulverized coal-fired boile
A compact optimization strategy for combustion in a 125 MW tangentially anthracite-fired boiler by a
Volatilization behavior of Cd and Zn based on continuous emission measurement of flue gas from labor
Numerical simulations of the slagging characteristics in a down-fired, pulverized-coal boiler furnac
A pilot scale study on co-capture of SO2 and NOx in O-2/CO2 recycled coal combustion and techno-econ
Pyrolysis of maize stalk on the characterization of chars formed under different devolatilization co
Effects of Indigenous and Added Minerals on Transformation of Organic and Inorganic Sulfur in Densit
Mineralogy and chemical composition of high calcium fly ashes and density fractions from a coal-fire
Study of flow mechanism and heat transfer enhancement in longitudinal-flow tube bundle of shell-and-
The Formation and Emission of Particulate Matter during the Combustion of Density Separated Coal Fra
An efficient solution for linear stability of circular jet: A combination of Petrov-Galerkin spectra
Physical quantity synergy in laminar flow field of convective heat transfer and analysis of heat tra
期刊信息
位置：