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Figure 3.12 CPObased biodiesel processing process under transesterification reaction
Figure 3.13 Common CPO based biodiesel processing under two stages transesterification reaction in PT Adaro, Central Kalimantan
Detail description of production process in Figure 3.20 and 3.21 and the common method implemented in biodiesel industry, and also to analyze the flow
of mass, energyheat, and waste into the air, liquid waste and solid waste per sub unit process production under catalytic method using CPO is as follow:
1. Sub Unit of Immersed Coil Heater
This sub unit is used to heat CPO before entering centrifuge Figure 3.14.
Figure 3.14 Sub unit of immersed coil heater
Preparation Washing
Distillation Purification
Methanol Methanol
Drying Trans
esterification
Biodiesel
Separation Glycerol I
Purification Dehydration
Biodiesel
Transesterification Stage I
Catalyst alkali
Transesterification
Stage II
Catalyst of alkali
+
Methanol
Separation Glycerol II
Pinch
Methanol
Pinch
Glycerol
Raw Glycerol Salt fertilizer
Preparation
Washing and
CPO Catalyst
Alkaline
Glycerol
CPO
Methanol
55
The input on line number 1 is CPO, water and dirt, and the output on line number 2 is FFA, triglyceride, water and dirt.
2. Sub Unit of Centrifuge 1
This sub unit is used to separate CPO that will be reacted from water and dirt Figure 3.15.
Figure 3.15 Sub unit of centrifuge 1 The input on line number 2 is FFA, triglyceride, water and dirt; while the
output in line number 4 is: FFA, triglyceride, water and dirt; and the output in line number 3 is: water and dirt.
3. Sub Unit of Mixer 1
This sub unit is used to blend methanol solution with KOH alkali as the catalyst Figure 3.16.
Figure 3.16 Sub unit of mixer 1 The input on line number 11 is: methanol and water, the input on line
number 12 is : KOH, and water; the output in line number 13 is : methanol, KOH catalyst, and water; while the output in line number 17 is : methanol, KOH
catalyst and water.
4. Sub Unit of Transesterification 1
This sub unit is used to react triglyceride with methanol to produce methyl ester biodiesel using KOH catalyst Figure 3.17.
2 3
4 dirt
FFA triglyceride
water dirt
water dirt
KOH water
CH
3
OH
water
KOH 12
13 CH
3
OH
water
KOH 17
triglyceride FFA
water
water
OH
3
CH 11
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Figure 3.17 Sub unitof transesterification 1 The input on line number 10 is : FFA, triglyceride, methanol and water;
the input on line number 13 is: methanol, KOH catalyst and water. The output on line number 14 is : methyl ester, FFA, triglyceride, methanol, KOH catalyst,
glycerol, water and dirt.
Figure 3.18 3D layout biodiesel milling plant with capacity of 500 literbatch or
about 1 ton per day in BRDST BPPT Puspitek Serpong
5.
Sub Unit of Centrifuge 2
This sub unit is used to separate methyl ester from glycerol, water, dirt and catalyst Figure 3.19.
FFA triglyceride
water dirt
CH
3
OH 13
10 14
methyl ester
glycerol KOH
3
OH CH
KOH water
FFA triglyceride
water dirt
