http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Experimental Heat and Mass Transfer Coefficients of a Two Stage Spray and Packed Bed Deaerator
( K. V. Suryanarayana ),( R. A. Bakar ),( Chang Sik Lee ),( D. M. Reddy Prasad ),( K. V. Sharma ) 한국액체미립화학회 2010 한국액체미립화학회 학술강연회 논문집 Vol.2010 No.-
Experiments are conducted to study the influence of mass flow rate on heat and mass transfer coefficients in a two stage deaerator consisting of a spray stage and packed bed combination. It has been observed that an increase in mass flow rate of water increases the heat transfer coefficients in both the stages of the deaerator, whereas the mass transfer coefficients increases in the first and decreases in the second stage. The heat transfer coefficient in the spray stage is 300 times greater than that obtained in the packed bed. The mass transfer coefficient decreased by 2 times in the second stage with increase in flow rate in the range of experiments conducted. It has been observed that oxygen can be reabsorbed by the outgoing feed water under certain conditions of flow.
Optimization of CO2 methanation reaction over M*/Mn/Cu–Al2O3 (M*: Pd, Rh and Ru) catalysts
A.H. Zamani,W.A.W. Abu Bakar,R. Ali 한국공업화학회 2015 Journal of Industrial and Engineering Chemistry Vol.29 No.-
The catalytic activity of CO2 methanation with H2 over M*/Mn/Cu–Al2O3 (M* = Pd, Rh and Ru) oxidecatalysts in simulated natural gas was investigated. Among them, Ru/Mn/Cu–Al2O3 catalyst was found tobe the most promising catalyst. Response surface methodology involving central composite design wasemployed and Ru loading was found to be the most significant effective factor, followed by calcinationtemperature and catalyst loading. The optimum condition for CO2 conversion was at 10.9 wt.% Ruloading, calcination temperature of 1035 8C and catalyst loading of 5 wt.g. Interestingly, the RMC10catalyst demonstrated good activity, stability and robustness during entire testing period which issuitable for industrial application.