PL
 |
EN
Preferencje help
Polish version English version Język
Widoczny [Schowaj] Abstrakt
Liczba wyników

Znaleziono wyników: 5

Liczba wyników na stronie
first rewind previous Strona / 1 next fast forward last
Wyniki wyszukiwania
Wyszukiwano:
w słowach kluczowych:  Amberlist 15
help Sortuj według:

help Ogranicz wyniki do:
first rewind previous Strona / 1 next fast forward last
1
Content available Zastosowanie inwersyjnej chromatografii gazowej w badaniach koadsorpcji – adsorpcja metanolu na Amberlyście 15
Słomkiewicz P. M.
Camera Separatoria
|
2011
|
Vol. 3, No. 1
103--114
PL
Opisano aparaturę do dozowania różnej wielkości próbki dwóch adsorbatów do pomiarów koadsorpcji. Pomiary koadsorpcji wykonano dla metanolu na powierzchni sulfonowanego kopolimeru styrenowo-diwinylobenzenowego Amberlyst 15 pokrytej zaadsorbowaną wodą. Wyznaczono stałe równowagi i entalpie adsorpcji.
EN
The apparatus for dosage different size of sample of two adsorbatesforcoadsorption measurementswas described. The measurements were executed for methanol coadsorption on the surface of sulfonated styrene-divinylobenzenecopolymerAmberlyst 15 covered with adsorbed water. The equilibrium constants and enthalpies of adsorptionwere determined.
2
Content available remote A determination of equilibrium constants for syntheses of methyl-tert-butyl and ethyl-tert-butyl ethers on sulfonic copolymer by gas chromatography
Słomkiewicz P.M.
Polish Journal of Chemical Technology
|
2006
|
Vol. 8, nr 2
97-101
EN
A method of determining equilibrium constants of catalytic reactions was described using gas chromatography. Both the equilibrium constants and enthalpies of methyl-tert-butyl ether from methanol and isobutene, ethyl-tert-butyl ether from ethanol and isobutene on catalyst Amberlyst 15 in the gas phase were determined. The enthalpy values of these reactions were compared with the enthalpies calculated from thermodynamic data and the experimental data given in the literature.
3
Content available remote The kinetics of ethers synthesis from alkenes and methanol catalyzed by the sulfonated styrene-divinylbenzene copolymer
Słomkiewicz P.M.
Polish Journal of Chemical Technology
|
2004
|
Vol. 6, nr 2
43-49
EN
The investigation of ethers synthesis on the acidic catalyst (sulfonated styrene-divinylbenzene copolymer Amberlyst 15) was carried out. For the experiments: methanol and alkenes (propene, isobutene, 2-methyl-1-butene, 2-methyl-2-butene, 2-methyl-1-pentene, 2-methyl-2-pentene, 2-methyl-2-hexene) were chosen. The influence of the parameters reaction (temperature, partial pressure of the reacting substances) on the course of etherification reaction was determined. The Langmuir-Hinshelwood heterogeneous kinetic model was used for the description of the kinetic etherification reaction. The adsorption equilibrium constants for the alkenes and alcohols on the sulfonated styrene-divinylbenzene copolymer Amberlyst 15 by separate measurements, were also determined with a gas chromatography method. The influence of the carbon chain length in the alkenes on the kinetic parameters of the etherification reaction and the influence of the sorption effects on rate of the reaction was determined.
4
Content available remote Determination of the adsorption model of alcohols on the sulfonic copolymer by a gas chromatography method
Słomkiewicz P.M.
Polish Journal of Chemical Technology
|
2004
|
Vol. 6, nr 2
39-42
EN
Determination of the number of adsorption sites on the sulfonated divinylbenzene-styrene copolymer for alcohols (methanol, ethanol and n-propanol, n-butanol,) was performed by the copolymer saturation of alcohol vapour, the removing excess of alcohol from the copolymer by blowing the inert gas through the copolymer bed and the desorption of the adsorbed alcohol at the programmed increase of temperature. The adsorption measurements were performed on the sulfonated ion exchange resin (Amberlyst 15) with different acid group concentration, which means, with the varying number of adsorption sites. The adsorption model where one sulfonic group can adsorb one molecule of alcohol was proposed.
5
Kinetics of ETBE catalytic synthesis in a three phase reactor
Zmudziński W., Sobczyński A.
Polish Journal of Applied Chemistry
|
2002
|
Vol. 46, nr 1
11-19
EN
A three-phase reactor with an air stream controlled by a draft tube was applied to ETBE synthesis from isobutene and ethanol under atmospheric pressure in the presence of Amberlyst 15 resin. It was found that when excess of ethanol was used, the catalytic reaction was highly selective and proceeded as 1st order towards isobutene. The reaction product, ETBE, if not removed from the mixture, retarded the reaction rate.
first rewind previous Strona / 1 next fast forward last
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.