Warianty tytułu
Języki publikacji
Abstrakty
The possibility to use nitrogen-rich natural gases directly, without separation and nitrogen removal, as feedstocks in some prospective novel CH4 conversion processes has been investigated. Various CH4-N2 mixtures containing up to about 90 vol.% of N2 were used as models for nitrogen-rich natural gases. The possible effect of N2 content in the feed on the course of methane oxidative coupling to ethylene and ethane over Na2O/CaO, methane and toluene oxidative cross-coupling to ethylbenzene and styrene over Na2O/CaO, oxygen-free methane dehydroaromatization to hydrogen, benzene and naphthalene over Mo/HZSM-5 and oxygen-free methane catalytic decomposition to hydrogen and carbon over NiCu/MgO, has been studied. Some detailed results and observed regularities have been reported and discussed. It was shown that in the irreversible processes of methane oxidative coupling and cross-coupling, no effect of CH4 dilution on the reactants conversion and on the yields and selectivities of the main products formation was observed under experimental conditions, at least up to about 80% of the nitrogen content. In the reversible processes of methane dehydroaromatization and methane catalytic decomposition, proceeding with the increase in the number of moles, it was observed the beneficial rise in the CH4 conversion and in the products yields with the growing dilution. Thus, it was shown that non-separated nitrogen-rich natural gases could be used as direct feedstocks in the investigated novel processes.
Czasopismo
Rocznik
Tom
Strony
55-70
Opis fizyczny
Bibliogr. 22 poz.
Twórcy
autor
autor
autor
- Silesian University of Technology, Chair of Chemical Organic Technology and Petrochemistry, ul. Krzywoustego 4, 44-101 Gliwice, Poland, Marian.Taniewski@polsl.pl
Bibliografia
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Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.baztech-article-BPP1-0093-0102