Zobrazeno 1 - 10
of 34
pro vyhledávání: '"Akinori Maezawa"'
Publikováno v:
International Journal of Photoenergy, Vol 1, Iss 1, Pp 60-64 (1999)
Photo-catalytic oxidation of surfactant (polyoxyethylene-alkyl-ether, C14H29O(CH2CH2)7H, hereinafter referred as SS-70) enhanced by high power ultrasound is examined. The influences of the ultrasonic power and the stirring speed on the degradation ra
Externí odkaz:
https://doaj.org/article/a706c058b72944249845f145f518b99b
Publikováno v:
JOURNAL OF CHEMICAL ENGINEERING OF JAPAN. 39:687-692
The ultrasonic technique was used for measuring the interfacial area (a) in a gas–liquid bubble column. In this study, the ultrasonic technique is based on the measurement of the attenuation of the ultrasound pulses propagating through a gas–liqu
Publikováno v:
JOURNAL OF CHEMICAL ENGINEERING OF JAPAN. 39:724-730
The removal of Cr(III) in an aqueous solution by an alkaline solution was experimentally and theoretically investigated. The experiment was carried out in a batch stirred reactor at room temperature. A mathematical model based on mass and charge bala
Autor:
Mariana, Ken-ichi Sumida, Takenari Takeshita, Toshihoko Satake, Shigeo Uchida, Akinori Maezawa
Publikováno v:
Korean Journal of Chemical Engineering. 21:589-594
Experimental and modeling studies have been conducted on CO2 absorption in a cyclone scrubber operated at room temperature. The effects of parameters such as the initial concentration of alkali in the solution and the liquid - gas ratio on the CO2 ab
Publikováno v:
JOURNAL OF CHEMICAL ENGINEERING OF JAPAN. 37:927-932
The gas holdup and the volumetric mass transfer coefficient are very important parameters for mass transfer operation in bubble columns. These parameters have been major subjects for many researches for a long time. In this study, a novel technique o
Publikováno v:
Chemical Engineering & Technology. 26:1080-1083
This paper presents the implementation of a novel technique based on an ultrasonic and neural network, to simultaneoulsy determine e g and k L a, in a 2-D bubble column. Preliminary results showing the capability of the proposed method will be presen
Publikováno v:
Chemical Engineering & Technology. 22:507-510
The oxidation of surfactant (polyoxyethylene alkyl ether, C 14 H 29 O(CH 2 CH 2 ) 7 H, hereafter referred to as SS-70) induced by high power ultrasound is examined. The influences of aeration, bubble distribution, and frequency on the degradation rat
Publikováno v:
Journal of Chemical Engineering of Japan. 30:786-792
The radial distribution of solid concentration in the fully-developed flow region of a slurry bubble column was measured by an ultrasonic penetration method. The method allows the measurement of the solid holdup separately from the gas holdup by meas
Publikováno v:
ChemInform. 22
The effect of ZnO addition on cobalt–alumina interaction modes was studied using TPR and XPS. It was found that the addition of 2 wt% ZnO markedly affects the distribution of the cobalt species in CoO/Al2O3 (5 wt% CoO): cobalt–alumina surface int
Publikováno v:
Bulletin of the Chemical Society of Japan. 64:236-242
The effect of ZnO addition on cobalt–alumina interaction modes was studied using TPR and XPS. It was found that the addition of 2 wt% ZnO markedly affects the distribution of the cobalt species in CoO/Al2O3 (5 wt% CoO): cobalt–alumina surface int