Development of optimun synthesis method for transesterification of palm oil methyl esters and trimethylolpropane to environmentally acceptable palm oil-based lubricant.
Chemical synthesis of palm Gil trimethylolpropane esters was conducted via transesterification of palm Gil methyl esters (POME) with trimethylolpropane (TMP). The palm Gil TMP esters are potential biodegradable base stock for lubricant production. The influence of the main operating variables, namely, temperatures and pressures, molar ratio of palm methyl esters to TMp, and catalyst amount was studied and analysed. The effects of temperature (80 GC to 140 GC) and reduced pressure (0.1, l0, 50,100 and 500 mbar) were investigated and found to have a significant impact on the reaction. On the contrary, the amount of catalyst (per cent w/w) and molar ratio of POME to TMP had little influence on the conversion but affected the overall yield of the reaction. The optimal reaction conditions are as follows: duration: 1 hr; temperature: 130 GC; pressure: 20 mbar; catalyst: sodium methoxide at 0.8 per cent w/w; molar ratio of POME:TMP at 3.9:1. Palm Gil TMP ester containing 98 per cent w/w triesters was successfully synthesized in less than an hour.
| Main Authors: | , , , |
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| Format: | Texto biblioteca |
| Language: | d |
| Subjects: | Aceite de palma, Lubricantes., metil éster, Transesterificación, |
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