Sub Unit of Immersed Coil Heater

Figure 3.24 Sub unit of washing tank

9. Sub Unit of Dekanter

This sub unit is used to separate methyl ester from water, the remaining methanol, catalyst, and glycerol Figure 3.25. The input on line number 22 is : methyl ester, FFA, triglyceride, methanol, KOH catalyst, glycerol, water, and dirt. While the output on line number 23 is : Water, Methanol, KOH catalyst, glycerol, and dirt. The output on line number 24 is: methyl esters, FFA, triglycerides, methanol, KOH catalyst, glycerol, and water. Figure 3.25 Sub unit of decanter

10. Sub Unit of Evaporator

This subunit is used to eliminate water content and remaining methanol in methyl ester Figure 3.26. Figure 3.26 Sub unit of evaporator The input on line number 24 is: methyl ester, FFA, triglyceride, methanol, KOH catalyst, glycerol, water, and dirt. While the output on line number 25 20 22 21 water FFA Triglyceride water dirt CH 3 OH Methy ester Glycerol KOH 23 24 water KOH Glycerol FFA Triglyceride water CH 3 OH Methyl ester Glycerol KOH CH 3 OH dirt 22 FFA Triglyceride water dirt CH 3 OH 25 24 26 Methyl ester Glycerol KOH CH 3 OH water methyl ester FFA Triglyceride dirt water OH 3 Glycerol KOH CH Methyl ester FFA Triglyceride water dirt OH 3 CH Glycerol KOH FFA Methyl ester Triglyceride dirt OH 3 CH Glycerol KOH water is:water, and methanol, and output on line number 26 is: methyl ester, FFA, triglyceride, methanol, KOH catalyst, glycerol, water, and dirt.

11. Sub Unit of Cooler

This subunit is used to lower the temperature of biodiesel from the to enter the storage tank Figure 3.27. Figure 3.27 Sub unit of cooler The input on line number 26 is: methyl ester, FFA, triglyceride, KOH catalyst, glycerol, and water. While the output on line number 27 is: methyl ester, FFA, triglyceride, KOH catalyst, glycerol, and water.

12. Sub Unit of Heater

This sub unit is used to raise the temperature of the feed which will enter to distillation sub uit Figure 3.28. Figure 3.28 Sub unit of heater The input on line number 28 is: methanol, KOH catalyst, glycerol, and water. While the output on line number 29 is: methanol, KOH catalyst, glycerol, and water.

13. Sub Unit of Distillation Tray

This sub unit is used to recover residual methanol. Incoming feed consists of methanol, water, glycerol, and KOH. The input on line number 29 is: water, methanol, glycerol, and KOH catalyst; the input in line number 35 and 32 is: water, and methanol. While the output on line number 34 is: water, methanol, glycerol, and KOH catalyst; the output on line number 30 is : methanol, and water Figure 3.29. FFA Triglyceride water Methyl ester Glycerol KOH 26 27 water 28 water Glycerol KOH CH 3 OH 29 Methyl ester FFA Triglyceride KOH Glycerol water Glycerol KOH CH 3 OH