Sorption of vapour mixtures of methanol and dimethyl carbonate in PTMSP: Cooperative and competitive sorption in one system

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F16%3A43899610" target="_blank" >RIV/60461373:22340/16:43899610 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1016/j.eurpolymj.2015.12.015" target="_blank" >http://dx.doi.org/10.1016/j.eurpolymj.2015.12.015</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.eurpolymj.2015.12.015" target="_blank" >10.1016/j.eurpolymj.2015.12.015</a>

Result language

angličtina

Original language name

Sorption of vapour mixtures of methanol and dimethyl carbonate in PTMSP: Cooperative and competitive sorption in one system

Original language description

Equilibrium sorption of vapour mixtures of methanol and dimethyl carbonate in poly[(trimethylsilyl)propyne], PTMSP, is reported. The experiments were conducted at 40 oC and at atmospheric pressure using an apparatus that combined the sorption gravimetry in a carrier gas and the analysis of the desorbate by Fourier transform infrared spectroscopy (FT-IR). An unusual combination of competitive and cooperative sorption effects of dimethyl carbonate on methanol was observed. The cooperative sorption occurred at small methanol vapour activities, at which the sorption of pure methanol vapour is anomalously, and advantageously, small. The sorption isotherms of pure vapours and vapour mixtures were plausibly parameterized using Guggenheim, Anderson, De Boer (GAB) model and its semi-empirical extension for vapour mixtures, respectively. While the ideal separation factor of sorption, observable from the pure component sorption data, ranged 2-248, the real separation factor was significantly lowered by the co-sorption effects to 1-20. Overall, the highest real separation factors were observed for the higher dilutions of the binary feed mixtures with the inert gas and, advantageously, for methanol rich feed mixtures (i.e. in the vicinity of the composition of the azeotropic mixture).

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CF - Physical chemistry and theoretical chemistry

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2016

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

European Polymer Journal

ISSN

0014-3057

e-ISSN

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Volume of the periodical

75

Issue of the periodical within the volume

75

Country of publishing house

IE - IRELAND

Number of pages

8

Pages from-to

243-250

UT code for WoS article

000370309400020

EID of the result in the Scopus database

2-s2.0-84952766482