Step Changes and Deactivation Behavior in the Continuous Decarboxylation of Stearic Acid Full article
Journal |
Industrial and Engineering Chemistry Research
ISSN: 0888-5885 , E-ISSN: 1520-5045 |
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Output data | Year: 2011, Volume: 50, Number: 19, Pages: 11049-11058 Pages count : 10 DOI: 10.1021/ie201273n | ||||||||
Tags | CATALYTIC DEOXYGENATION; VEGETABLE-OILS; FATTY-ACIDS; PALM OIL; MESOPOROUS CARBON; BIOFUEL PRODUCTION; ALIPHATIC ESTERS; DIESEL FUEL; BIODIESEL; PD | ||||||||
Authors |
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Affiliations |
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Funding (1)
1 | Danish Agency for Science, Technology and Innovation |
Abstract:
Deoxygenation of dilute and concentrated stearic acid over 2% Pd/C beads was performed in a continuous reactor at 300 °C and 20 bar pressure of Ar or 5% H2/Ar. Stable operation was obtained in 5% H2 atmosphere, with 95% conversion of 10 mol % dilute stearic acid in dodecane and 12% conversion of pure stearic acid. Deactivation took place in H2-deficient gas atmosphere, probably as a result of the formation of unsaturated products and coking in the pore system. Transient experiments with step changes were performed: 1 h was required for the step change to be visible in liquid sampling, whereas steady states were achieved after a total of 2.5–3 h. Postreaction analysis of the spent catalyst revealed that a deactivation profile was formed downward over the catalyst bed.
Cite:
Madsen A.T.
, Rozmysłowicz B.
, Simakova I.L.
, Kilpiö T.
, Leino A-R.
, Kordas K.
, Eranen K.
, Maki-Arvela P.
, Murzin D.Y.
Step Changes and Deactivation Behavior in the Continuous Decarboxylation of Stearic Acid
Industrial and Engineering Chemistry Research. 2011. V.50. N19. P.11049-11058. DOI: 10.1021/ie201273n WOS Scopus РИНЦ
Step Changes and Deactivation Behavior in the Continuous Decarboxylation of Stearic Acid
Industrial and Engineering Chemistry Research. 2011. V.50. N19. P.11049-11058. DOI: 10.1021/ie201273n WOS Scopus РИНЦ
Files:
Full text from publisher
Dates:
Submitted: | Jun 15, 2011 |
Accepted: | Sep 2, 2011 |
Published online: | Sep 2, 2011 |
Published print: | Oct 5, 2011 |
Identifiers:
Web of science | WOS:000295237000020 |
Scopus | 2-s2.0-84860142914 |
Elibrary | 18056953 |
Chemical Abstracts | 2011:1320804 |
Chemical Abstracts (print) | 155:567311 |
OpenAlex | W1976438433 |