The design for a new packed distillation column for consideration as a new experiment for the University Of Florida Department Of Chemical Engineering Unit Operations Laboratory was created to demonstrate the separation of water and isopropanol (i-Pr) and to evaluate a parallel applied multi-correlation approach to creating a high accuracy process model based on correlations with known margins ...

Vapor-liquid equilibrium and density measurements have been performed on 1.00-5.89 m tetrabutylammonium bromide (TBAB) in mixtures of 2-propanoland water. The VLE experiments were performed using a modified Othmer still a t ambient pressure. The effect of salt on the relative volatility of 2-propanol was evaluated at molalities of 1.00,1.79, and 5.89 over the full range of solvent composition. ...

The Online Chemical Modeling Environment (OCHEM, http://ochem.eu) is a web-based platform that provides tools for automation of typical steps necessary to create a predictive QSAR/QSPR model. The platform consists of two major subsystems: a database of experimental measurements and a modeling framework. So far, OCHEM has been limited to the processing of individual compounds. In this work, we e...

Extracting ethanol by steam directly from fermented solid-state bagasse is an emerging technology of energy-efficient bioethanol production. With continuous distillation (CSSD) approach, the vapor with more than 25 wt% flows out column. Conventionally, was concentrated to azeotrope rectification column, which contributes most energy consumption in As alternative, a process integrating CSSD and ...

The extension of the translated–consistent Peng–Robinson (tc-PR) equation state (EoS) to mixtures has been investigated. For this purpose, advanced EoS/aresE,? mixing rules are used combine tc-PR EoS with residual part an activity coefficient model chosen among Wilson, nonrandom two-liquid (NRTL), and universal quasi-chemical (UNIQUAC) models. performances three resulting versions compared agai...

The invisible inks have many applications, including the use of banknote printing, code load, securitydocuments and much of its application in the exchange of security information. Photoluminescenceproperties of lanthanide compounds that attracted the attention of many scholars in recent decades are one ofthe important factors in drying and fluidity of the ink. The solvent eva...

/ O" rather an attempt to compare the two a~ents by carefully anal)~smg the results of the routine use first of Fluothane then of the az~?otrope. There has been some eontrovers over the merit of adding ethelr to Fluothane. Hudon, Jaeques__and Boivin 1 suggested that by adding ether to prochaee respiratory and myocardial stimulation inany of the disadvantages of Ft~othane could be remedied. Thei...

Abstract Drying cement-based materials is a necessary step to characterize the microstructure by microscopy, adsorption, or mercury intrusion. The isopropanol (IPA) exchange method commonly used replace pore solution prior drying, as it reduces capillary pressure and thereby helps preserve of hydrated cementitious materials. However, some physical chemical effects IPA on hydration products have...