Vapor-liquid equilibrium of mixtures containing formaldehyde, water, and butynediol

Abstract

Measurements of the vapor-liquid equilibrium in the system formaldehyde þ water þ butynediol were performed at 393 K and 413 K for overall formaldehyde mass fractions between 0:1 g g À1 and 0:2 g g À1 and overall butynediol mass fractions between 0:05 g g À1 and 0:35 g g À1 . The studied system is a complex reactive multicomponent mixture as formaldehyde reacts both with formaldehyde and butynediol. A predictive physico-chemical model of the vapor-liquid equilibrium from the literature [1] is validated by the experiments of the present work. Residue curves are calculated to illustrate the distillation behavior of the studied system.

Study on Vapor–Liquid Equilibrium and Microscopic Properties of Glycine + H2O, l-Histidine + H2O, and l-Tryptophan + H2O

“…Vapor–liquid equilibrium (VLE), liquid–liquid equilibrium (LLE), and solid–liquid equilibrium (SLE) are important in industry, chemistry, and other fields, , and VLE experiments are fundamental research in chemical engineering. Berje et al studied the VLE of mixtures containing formaldehyde, water, and butynediol. The effects of different water fractions on the phase equilibrium of methane (CH 4 ) hydrate and the inhibition performance of l -proline hydrate were studied .…”