Oleate formation from stearate

A novel method for production of paraffinic hydrocarbons, suitable as diesel fuel, from renewable resources was illustrated. The fatty acid ethyl ester, ethyl stearate, was successfully converted with high catalyst activity and high selectivity towards formation of the desired product, heptadecane. Investigation of the impact of catalyst reduction showed that the reduction pretreatment had a beneficial effect on the formation of desired diesel compound. The non-pretreated catalyst dehydrogenated ethyl stearate to ethyl oleate. The experiments at different reaction temperatures, depicted that conversion of ethyl stearate was strongly dependent on reaction temperature with Eact=69 kj/mole, while product selectivities were almost constant. Complete conversion of ethyl stearate and very high selectivity towards desired product (95%) were achieved at 360°C. 

To test these possibilities, secondary molecular ion emission from arachidic (AA) and behenic (BA) acids cast directly onto equivalently prepared silver substrates from solution was compared to the secondary ion emission from LB films of equivalent molecular concentrations (i.e. molecules/cm2) to determine the effect of orientation in molecular ion formation. The qualitative results are summarized in Table 3. For single LB layers of AA and BA on Ag, no (M+H)+ emission is observed, as was previously reported for stearate, oleate and linolenic systems (3a). The Ag cationized molecular species, (M+Ag)+ and (M-H+2Ag)+, are... 

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