Sorption and catalytic effects upon the dehydration of methanol on perfluorinated copolymer-containing sulfo groups

被引：10

作者：

Kipnis, M. A. ^{[1
]}

Samokhin, P. V. ^{[1
]}

Bondarenko, G. N. ^{[1
]}

Volnina, E. A. ^{[1
]}

Kostina, Yu V. ^{[1
]}

Yashina, O. V. ^{[1
]}

Barabanov, V. G. ^{[2
]}

Kornilov, V. V. ^{[2
]}

机构：

[1] Russian Acad Sci, Topchiev Inst Petrochem Synth, Moscow 119991, Russia

[2] Appl Chem Russian Res Ctr, St Petersburg 197198, Russia

来源：

RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A | 2011年 / 85卷 / 08期

关键词：

methanol; dimethyl ether; temperature effect; sorption; fluoroplastic; DIMETHYL ETHER DME; SYNGAS;

D O I：

10.1134/S0036024411080164

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The peculiarities of methanol transformation on the surface of perfluorinated copolymer, fluoroplastic, containing sulfo groups were studied. At temperatures of 70-120A degrees C, the polymer was established to have high initial activity during the conversion of methanol into dimethyl ether; this reaction was, however, accompanied by strong water sorption that leads to a rapid drop in the activity. The sorption/desorption processes were characterized by temperature effects such as heating during sorption and cooling during desorption. The structure of the polymer in the salt (sodium cations) and acid (hydrolyzed polymer) forms was studied by IR spectroscopy. H3O+SO (3) (-) ionic pairs were found to be present in the acid form.

引用

页码：1322 / 1331

页数：10

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