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Direct conversion of methanol to n-C4H10 and H2 in a dielectric barrier discharge reactor.
- Source :
- Green Chemistry; 10/21/2016, Vol. 18 Issue 20, p5658-5666, 9p
- Publication Year :
- 2016
-
Abstract
- Methanol is an important H-carrier and C1 chemical feedstock. In this paper, a direct conversion of methanol to n-C<subscript>4</subscript>H<subscript>10</subscript> and H<subscript>2</subscript> was achieved for the first time in a dielectric barrier discharge (DBD) non-thermal plasma reactor. The selective formation of n-C<subscript>4</subscript>H<subscript>10</subscript> by limiting CO<subscript>x</subscript> (x = 1 and 2) generation was obtained by optimizing different plasma processing parameters including the methanol inlet concentration, discharge power, and pre-heating temperature. The results showed that a higher methanol inlet concentration and a higher pre-heating temperature favors the formation of n-C<subscript>4</subscript>H<subscript>10</subscript>, while a higher methanol inlet concentration and a lower discharge power can effectively limit the formation of CO. The optimal selectivity for n-C<subscript>4</subscript>H<subscript>10</subscript> (37.5%), H<subscript>2</subscript> (28.9%) and CO (14%) was achieved, with a methanol conversion of 40.0%, at a methanol inlet concentration of 18 mol%, a discharge power of 30 W and a pre-heating temperature of 140 °C using N<subscript>2</subscript> as a carrier gas. Value-added liquid chemicals (e.g., alcohols, acids, and heavy hydrocarbons) were also obtained from this reaction. Emission spectroscopy diagnostics reveals the formation of various reactive species (e.g., CH, C<subscript>2</subscript>, CN, H and metastable N<subscript>2</subscript>) in the CH<subscript>3</subscript>OH/N<subscript>2</subscript> DBD. Possible reaction pathways for the formation of n-C<subscript>4</subscript>H<subscript>10</subscript> were proposed and discussed. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 14639262
- Volume :
- 18
- Issue :
- 20
- Database :
- Complementary Index
- Journal :
- Green Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 118713395
- Full Text :
- https://doi.org/10.1039/c6gc01604a