In this study, the kinetics for reaction of tert-butanol esterification with acetic acid in presence Dowex 50Wx8 catalyst was investigated. The kinetic experiments were conducted 1000 milliliter vessel at temperatures ranged from 50 - 80 oC, loading 25-50 g/L, and molar ratios to 1/3 – 3/1. rate found increase increasing temperature loading. It also conversion increases as ratio alcohol Non-ide...

The working fluids are crucial for developing the absorption refrigeration system. Our previous work has proposed three novel pairs, which uses low-GWP HFCs (R32, R152a and R161) as refrigerants polyethylene-glycol dimethylether solvent DMETEG absorbent. To explore VLE behaviors of in other longer chain structures solvents, modified UNIFAC (Dortmund) model was applied prediction. binary paramet...

Secondary organic aerosol (SOA) formation in the atmosphere is currently often modeled using a multiple lumped “two-product” (N · 2p) approach. The N · 2p approach neglects: 1) variation of activity coefficient (ζi) values and mean molecular weight MW in the particulate matter (PM) phase; 2) water uptake into the PM; and 3) the possibility of phase separation in the PM. This study considers the...

This paper describes the inclusion of organic particulate material within the Aerosol Diameter Dependent Equilibrium Model (ADDEM) framework described in the companion paper applied to inorganic aerosol components. The performance of ADDEM is analysed in terms of its capability to reproduce the behaviour of various organic and mixed inorganic/organic systems using recently published bulk data. ...

Separation of glycols with close boiling points and relatively high viscosity at their melting point is a challenge in the production purity products downstream biorefinery processes. In this work, efficiency layer melt crystallization process acetone as assisting solvent was evaluated for mixture monoethylene glycol 1,2-pentanediol. Solid-liquid equilibrium measured modelled NRTL modified UNIF...

Knowledge of thermodynamic properties mixtures is essential in many fields science and engineering. However, the experimental data usually scarce, so prediction methods are needed. Matrix completion have proven to be very successful predicting binary mixtures. In this approach, organized a matrix whose rows columns correspond two components, entries indicate value studied property at fixed cond...