Record number :
Title of article :
Deoxygenation of dodecanoic acid under inert atmosphere
Author/Authors :
Bernas، نويسنده , , Heidi and Erنnen، نويسنده , , Kari and Simakova، نويسنده , , Irina and Leino، نويسنده , , Anne-Riikka and Kordلs، نويسنده , , Krisztiلn and Myllyoja، نويسنده , , Jukka and Mنki-Arvela، نويسنده , , Pنivi and Salmi، نويسنده , , Tapio and Murzin، نويسنده , , Dmitry Yu.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2010
Pages :
From page :
To page :
Abstract :
A laboratory-scale fixed bed reactor (down-flow) was developed for the deoxygenation of dodecanoic (lauric) acid under inert atmosphere. This reaction can be utilized to produce renewable diesel components. The main products were undecane (decarboxylation) and undecene (decarbonylation). The catalysts were a palladium catalyst supported on mesoporous carbon, Sibunit (egg-shell type with spherical granules of 1.6–2.0 mm in diameter), and a commercial Pd/C catalyst. The challenge was to obtain a high activity and selectivity to undecane, as pure dodecanoic acid without any solvents was used. Moreover, the complete reactor system consisting of a reactant feed vessel, a pump, lines, a sampling valve, and a collector of the residue had to be heated, since saturated fatty acids with more than nine carbon atoms have a melting point exceeding 20 °C. The influence of reaction conditions, such as reaction temperature (300–360 °C), pressure (5–20 bar), gas flow rate, reactant concentrations, was studied. The reactant conversion increased when an inert gas (argon) flow was applied co-currently with the reactant flow. The argon pressure did not have any significant impact on the performance. The reason for the catalyst deactivation was determined to be coking.
Keywords :
deoxygenation , fatty acid , Decarboxylation , PALLADIUM , carbon
Journal title :
Serial Year :
Link To Document :