Selective Vapour-Phase α-Pinene Isomerization to Camphene over Gold-on-Alumina Catalyst Full article
| Journal |
Applied Catalysis A: General
ISSN: 0926-860X , E-ISSN: 1873-3875 |
||||||
|---|---|---|---|---|---|---|---|
| Output data | Year: 2010, Volume: 385, Number: 1-2, Pages: 136-143 Pages count : 8 DOI: 10.1016/j.apcata.2010.07.002 | ||||||
| Tags | α-Pinene, Camphene, Gold catalysts, Isomerization | ||||||
| Authors |
|
||||||
| Affiliations |
|
Funding (3)
| 1 | Russian Foundation for Basic Research | 09-03-12272 |
| 2 | Russian Foundation for Basic Research | 08-03-91758 |
| 3 | Фонд содействия развитию малых форм предприятий в научно-технической сфере |
Abstract:
The vapour-phase isomerization of α-pinene for the first time was studied over a supported Au catalyst. α-pinene was isomerized to camphene over the 2.2% Au/γ-Al2O3 catalyst at 463–483 K using a solution of the reagent in n-octane as the initial reaction mixture and H2 or N2 as a carrier gas. Under these conditions, the selectivity to camphene reaches 60–80% at 99.9% conversion of α-pinene. The reaction is found to be first-order with respect to α-pinene, the apparent activation energy being similar to that observed with the conventional TiO2 catalyst. The prominent catalyst deactivation has been observed at increased α-pinene concentrations in the inlet reaction mixture (≥4 vol% in n-octane solution). According to HRTEM and TPO results, the deactivated catalyst contains the carbonaceous deposits that may block the catalyst surface. Almost complete regeneration was done in flowing O2 at temperature up to 923 K required to totally eliminate the coke deposits.
Cite:
Simakova I.L.
, Solkina Y.S.
, Moroz B.L.
, Simakova O.A.
, Reshetnikov S.I.
, Prosvirin I.P.
, Bukhtiyarov V.I.
, Parmon V.N.
, Murzin D.Y.
Selective Vapour-Phase α-Pinene Isomerization to Camphene over Gold-on-Alumina Catalyst
Applied Catalysis A: General. 2010. V.385. N1-2. P.136-143. DOI: 10.1016/j.apcata.2010.07.002 WOS Scopus РИНЦ OpenAlex ANCAN
Selective Vapour-Phase α-Pinene Isomerization to Camphene over Gold-on-Alumina Catalyst
Applied Catalysis A: General. 2010. V.385. N1-2. P.136-143. DOI: 10.1016/j.apcata.2010.07.002 WOS Scopus РИНЦ OpenAlex ANCAN
Dates:
| Submitted: | Apr 26, 2010 |
| Accepted: | Jul 3, 2010 |
| Published online: | Jul 10, 2010 |
| Published print: | Sep 15, 2010 |
Identifiers:
| ≡ Web of science: | WOS:000281991000016 |
| ≡ Scopus: | 2-s2.0-77955917609 |
| ≡ Elibrary: | 15319561 |
| ≡ OpenAlex: | W2061406636 |
| ≡ Chemical Abstracts: | 2010:1053473 |
| ≡ Chemical Abstracts (print): | 153:530709 |