The oxidative methylaion of tolucoe with methane to ethylbenzene and Styrene proCeeded over basic Y typezeolite catalyst at 1023K. KY was prepared from NaY raw powder by exchange with 0.5M KOH aqueoussolution at 363K....The oxidative methylaion of tolucoe with methane to ethylbenzene and Styrene proCeeded over basic Y typezeolite catalyst at 1023K. KY was prepared from NaY raw powder by exchange with 0.5M KOH aqueoussolution at 363K. Loaded KY were preped by impregnating aqueous solutions of LiNO3 and CsNO3 onto KYzeolite.Only KY zeolite showed very low C8-yield and selativity. Addition of alkali-metal oxides to the KYzeolite increased greatly the catalytic activity. The Cs2O(6Wt% Cs2O)/KY catalyst gave the highest C3 yield of32.2% with selelectivity of 60.9%.展开更多
The effect of acid component including various conventional acids and tungstic compounds on glucose hydrogenation over a series of binary catalyst system containing Ru/C catalyst was investigated. The results showed t...The effect of acid component including various conventional acids and tungstic compounds on glucose hydrogenation over a series of binary catalyst system containing Ru/C catalyst was investigated. The results showed that HC1, H2SO4, H3BO3, H3PO4, and HNO3 had negligible effect, while all the tungstic compounds imposed inhibiting effects on the hydrogenation of glucose over Ru/C catalyst, and the suppressing effect followed the order of H2WO4〉HPW〉WO3〉AMT〉HSiW. This order is the same as the order of ethylene glycol （EG） yields in the one-pot conversion of glucose to EG, suggesting the important role of competition between glucose hydrogenation and retro-aldol condensation in controlling the selectivity of EG.展开更多
CATALINBREAD是个斩获无数荣誉大奖的Boutique类型效果器品牌,本次向大家介绍其旗下一款明星单块效果器产品--Dirty Little Secret。CATALINBREAD在海外彻底大热的其中一部分原因,是因为DLS这款产品(DirtyLittleSecret)。DLS有若干个版...CATALINBREAD是个斩获无数荣誉大奖的Boutique类型效果器品牌,本次向大家介绍其旗下一款明星单块效果器产品--Dirty Little Secret。CATALINBREAD在海外彻底大热的其中一部分原因,是因为DLS这款产品(DirtyLittleSecret)。DLS有若干个版本,以在小音量下完美重现经典的70年代初Marshall Plexi音色著称,官方在说明书中称其电路与Marsha11音箱完全一样。展开更多
This paper introduces the origin and progress of Tropical and South Subtropical Agricultural Comprehensive Experimental Station( hereinafter referred to as experimental station) CATAS( Jiangmen),formulates the thought...This paper introduces the origin and progress of Tropical and South Subtropical Agricultural Comprehensive Experimental Station( hereinafter referred to as experimental station) CATAS( Jiangmen),formulates the thought for construction of experimental station,analyzes the restrictive factors and puts forward corresponding countermeasures in order to provide reference for the decision- making and implementation of constructing the experimental station.展开更多
文摘The oxidative methylaion of tolucoe with methane to ethylbenzene and Styrene proCeeded over basic Y typezeolite catalyst at 1023K. KY was prepared from NaY raw powder by exchange with 0.5M KOH aqueoussolution at 363K. Loaded KY were preped by impregnating aqueous solutions of LiNO3 and CsNO3 onto KYzeolite.Only KY zeolite showed very low C8-yield and selativity. Addition of alkali-metal oxides to the KYzeolite increased greatly the catalytic activity. The Cs2O(6Wt% Cs2O)/KY catalyst gave the highest C3 yield of32.2% with selelectivity of 60.9%.
基金supported by the National Natural Science Foundation of China(Grants 21176235 and 21206159)
文摘The effect of acid component including various conventional acids and tungstic compounds on glucose hydrogenation over a series of binary catalyst system containing Ru/C catalyst was investigated. The results showed that HC1, H2SO4, H3BO3, H3PO4, and HNO3 had negligible effect, while all the tungstic compounds imposed inhibiting effects on the hydrogenation of glucose over Ru/C catalyst, and the suppressing effect followed the order of H2WO4〉HPW〉WO3〉AMT〉HSiW. This order is the same as the order of ethylene glycol （EG） yields in the one-pot conversion of glucose to EG, suggesting the important role of competition between glucose hydrogenation and retro-aldol condensation in controlling the selectivity of EG.
文摘CATALINBREAD是个斩获无数荣誉大奖的Boutique类型效果器品牌,本次向大家介绍其旗下一款明星单块效果器产品--Dirty Little Secret。CATALINBREAD在海外彻底大热的其中一部分原因,是因为DLS这款产品(DirtyLittleSecret)。DLS有若干个版本,以在小音量下完美重现经典的70年代初Marshall Plexi音色著称,官方在说明书中称其电路与Marsha11音箱完全一样。
文摘This paper introduces the origin and progress of Tropical and South Subtropical Agricultural Comprehensive Experimental Station( hereinafter referred to as experimental station) CATAS( Jiangmen),formulates the thought for construction of experimental station,analyzes the restrictive factors and puts forward corresponding countermeasures in order to provide reference for the decision- making and implementation of constructing the experimental station.
