초록

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Abstract ▼ AI-Helper

During the hydrogenation of rapeseed oil, reaction kinetics and physicochemical characteristics with catalysts (UP9900, DM3, Nysosel 222) were determined. Hydrogenation reaction rates for the UP 9900, Nysel DM3 and Nysosel 222 were $1.6{\pm}0.1\;({\times}10^{-2}),\;1.2{\pm}0.1\;(10^{-2}),\;1.2{...

During the hydrogenation of rapeseed oil, reaction kinetics and physicochemical characteristics with catalysts (UP9900, DM3, Nysosel 222) were determined. Hydrogenation reaction rates for the UP 9900, Nysel DM3 and Nysosel 222 were $1.6{\pm}0.1\;({\times}10^{-2}),\;1.2{\pm}0.1\;(10^{-2}),\;1.2{\pm}0.1\;(10^{-2})$, respectively. The selectivities for the linoleic acid and oleic acid were determined to be $0.9{\sim}1.5\;and\;39{\sim}44$ at 20 min. From these results, the use of catalysts was shown to be non-selective. Trans isomer content in Nysosel 222 was 32% when the reduction rate of iodine value was 38%, that in Nysel DM3 was 28% at the reduction rate of 45%. UP9900 showed no influence on the trans isomer content. Below the melting point of $35^{\circ}C$, oleic acid and trans isomer acid were increased. On the other side, over the melting point of $35^{\circ}C$, oleic acid was decreased and trans isomer acid was constant. And this tendency was also appeared at the reduction rate of iodine value of 38%.

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