已为您找到该学者40条结果 成果回收站
吴东方, Dongfang Wu and Jiancheng Zhou
December 2008 Vol. 54, No.12,-0001,():
-1年11月30日
The Taguchi method, a powerful tool to the optimization for quality, is used to improve the mechanical properties of a PCoMoAl hydrotreating catalyst in the impregnating and drying processes. An orthogonal array is selected to analyze the effects of the process factors, ie, impregnating temperature, impregnating time, drying temperature, and drying time. Through this study, not only can the main process factors that affect the mean strength and the Weibull modulus be found, but also the optimal factor levels can be obtained. Results show that the drying temperature is the most significant process factor affecting both the mean strength and the Weibull modulus. It has been shown that the mean strength, Weibull modulus, and mechanical reliability of the ydrotrating catalyst can be improved singificanuly with the optimization of the impregnating and drying process factors. Experimental results are also provided to confirm the effectiveness of the Taguchi method.
Solid catalysts,, mechanical strength,, reliability,, Weibull distribution,, Taguchi method
-
43浏览
-
0点赞
-
0收藏
-
0分享
-
54下载
-
0
-
引用
吴东方, Dongfang
Chemical Engineering Science 58 (2003) 3995-4004,-0001,():
-1年11月30日
The
Solid
-
42浏览
-
0点赞
-
0收藏
-
0分享
-
168下载
-
0
-
引用
-
40浏览
-
0点赞
-
0收藏
-
0分享
-
37下载
-
0
-
引用
吴东方, Jiancheng Zhou, Dongfang Wu, Wei Jiang, Yongdan Li
Chem. Eng. Technol. 2009, 32, No.10, 1520-1526,-0001,():
-1年11月30日
Monolithic catalysts were prepared by washcoating an alumina sol and then im pregnating Cu Mn Ag mixed oxides onto cordierite substrates. The effects of the preparation parameters including the Ag/Cu/Mn ratio, the total amount of active phase and the loading of washcoat, and the reaction conditions, e. g., the space velocity and the oxygen/toluene ratio on the catalytic performance for the corn bustion of toluene were investigated. It is shown that the Cu Mn Ag oxides are very active for the combustion of toluene and that the highest catalytic activity is achieved over a monolithic catalyst containing 14. 7wt% of washcoat and 21. 2 wt % of active phase with a Ag/Cu/Mn molar ratio of 13. 8/43. 1/43. 1. It is also seen that the optimum catalyst has a good catalytic stability and exhibits an excellent activity not only at a rather high space velocity but also within a wide range of oxygen/toluene ratios.
Catalytic combustion,, Mixed oxides,, Monolithic catalysts,, Toluene,, Volatile organic compounds
-
39浏览
-
0点赞
-
0收藏
-
0分享
-
119下载
-
0
-
引用
【期刊论文】Optimization of the production of thiocarbohydrazide using Taguchi method
吴东方
,-0001,():
-1年11月30日
-
38浏览
-
0点赞
-
0收藏
-
0分享
-
292下载
-
0
-
引用