Onyestyák, György and Novodárszki, Gyula and Barthos, Róbert and Klébert, Szilvia and Wellisch, Á. Farkas and Pilbáth, Aranka (2015) Acetone alkylation with ethanol over multifunctional catalysts by a borrowing hydrogen strategy. RSC ADVANCES, 5 (120). pp. 99502-99509. ISSN 2046-2069
|
Text
RSC_Advances_2015_final_accepted_manuscript_u.pdf Download (718kB) | Preview |
Abstract
Step by step alkylation of acetone (A) with ethanol (E) in a ratio of 1 : 2 was investigated. A fixed bed flow-through reactor system was used at a total pressure of 21 bar and in the temperature range of 150-350 [degree]C in inert He or a reducing H2 medium. Following the hydrogen borrowing methodology, two types of catalysts were prepared; using neutral activated carbon (AC) and alkaline hydrotalcite (HT) supports, namely 5 wt% Pd/AC in the presence of alkaline additives (10, 20 and 30 wt% KOH or 20% K3PO4); 9 wt% Cu/HT and 5 wt% Pd/HT. The catalysts were activated in a H2 flow at 350 [degree]C. Different yields of mono- or dialkylated ketones were observed. In a hydrogen medium over the same catalyst systems the ketone products could be reduced to alcohols. In this study the Pd/HT catalyst seems to be the most promising for fuel production based on biomass fermentation.
Item Type: | Article |
---|---|
Subjects: | Q Science / természettudomány > QD Chemistry / kémia |
SWORD Depositor: | MTMT SWORD |
Depositing User: | MTMT SWORD |
Date Deposited: | 23 Nov 2015 07:13 |
Last Modified: | 13 Nov 2016 00:15 |
URI: | http://real.mtak.hu/id/eprint/30310 |
Actions (login required)
![]() |
Edit Item |