http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
VLE calculation of carbon dioxide+n-alkanes binary mixtures with MHV2 mixing rule
Behzad Khodakarami,Abbas Naderifar 한국화학공학회 2008 Korean Journal of Chemical Engineering Vol.25 No.6
Vapor-liquid equilibria for binary and asymetric systems include carbon dioxide+C1-C8, C10 are calculated by using the Peng-Robinson-Stryjek-Vera equation of state coupled with the modified MHV2 mixing rule. The modified UNIFAC model is used for determining activity coefficient and excess Gibbs free energy. Calculated equilibrium pressures and mole fractions in vapor phase are compared with the experimental data. The average absolute deviation percent (AAD%)s indicates that the error involved in the application of the MHV2 mixing rule by optimized q1 and q2 is less than WS and PRSK mixing rules in most cases.
Ethanethiol Degradation by Ralstonia eutropha
Mahsa Sedighi,Farzaneh Vahabzadeh,Seyed Morteza Zamir,Abbas Naderifar 한국생물공학회 2013 Biotechnology and Bioprocess Engineering Vol.18 No.4
In the present study, a pure culture of Ralstonia eutropha was used to degrade gaseous ethanethiol. Ethane thiol at various initial concentrations ranging from 115 to 320 mg/m3 was degraded almost completely within 120 ~168 h, while at higher concentrations up to 452 mg/m3,removal efficiency declined. It was likely that ethanethiol was used as the source of energy by R. eutropha, since no clear increase in the biomass concentration was observed. Kinetic data of ethanethiol bidegradation could be fitted using the Monod model. The kinetic parameters were qm =0.23 (mg ethanethiol/g biomass/h), and Ks = 1.379 (mg/L). The mineralization pathway of ethanethiol through sulphate,as the detected product, and the energy production were discussed in some detail.
A new approach for modeling of multicomponent gas hydrate formation
Vahid Mohebbi,Reza Mosayyebi Behbahani,Abbas Naderifar 한국화학공학회 2017 Korean Journal of Chemical Engineering Vol.34 No.3
Several models have been proposed to investigate the kinetics of gas hydrate formation. The main differences between the proposed models are the definition of the driving force, thermodynamics approach and the number of resistances to study the gas consumption by the hydrate phase. This paper concentrates on gas hydrate formation from multicomponent mixture, which has not been much studied before. In the present research, chemical potential has been considered as the driving force and, consequently, a new resistance coefficient was introduced. A complete discussion and reasonable assumptions has been provided to support this modelling.