The document is a process flow diagram for a proposed biodiesel plant. Raw materials like waste cooking oil, animal fats and processed fatty acid distillate are pre-treated and purified. They are then processed using a transesterification reaction with methanol and KOH catalyst to produce biodiesel and glycerine. The biodiesel undergoes further purification and quality control. Byproducts like glycerine and fertilizers are also produced. Effluents are treated in wastewater and sludge treatment systems before being discharged.

1. Screenings and solid residue (About 33 tpd)
Disposal at Landfill
(Design Capacity
515 tpd with COD -
Wastewater About 15,000 to
GTW off - loading (About 450 tpd)
-1
40,000 mg L ) Vent Gas
Collection Screening GTW Pre-treatment Buffer Tank Vent Gas
Vehicles (About 606 tpd) Scrubber
Steam Condensate Trap Grease Oil-Water
from Purification Process Separator
(About 11 tpd)
Vent Gas
WCO Crude Discharge to atmosphere
(About 50 tpd)
DAF System
Animal Fats
(About 20 tpd)
Purification
Vent Gas
PFAD Purified pH Adjustment
WCO Purified GTW NaOH
(About 167 tpd) Tank
(About (About 91 tpd)
45 tpd)
Sulphuric acid, 96%
(About 3.5 tpd)
Phosphoric acid, 75% Vent Gas
(About 0.3 tpd) Recirculation
Tank
Methanol
(About 34 tpd)
Glycerine Phase
Methanol - KOH Neutralization
Internal Circulation Biogas (About 80 m3hr-1)
Catalyst Transesterification Biogas
(IC) Reactor Buffer Tank
KOH 88%
(About 5 tpd)
Excess
Methanol FFA Fertilizer Separation
Fertilizer
(about 7 tpd) Aeration Tank
Methylester - Methanol Boiler Biogas Flare (Standby)
Recovery Design Capacity
Process Water 3 -1
(About 11 tpd) 150 m hr
Glycerine - FFA Sludge
Separation Secondary Sludge Exhaust Air to
Clarifier Thickener Atmosphere
Methylester Purification
Exhaust Air to
Biodiesel Distillation
Atmosphere
and Quality Control Effluent
Crude Glycerine
Neutralisation Belt Press
Filtrate
Dewatering
System
Biodiesel Bioheating Oil
(About 303 tpd (About 27 tpd)
or 100,000 tpa)
Glycerine Wastewater Discharge to
Demethanolising (About 30 tpd) public sewer leading to
Methanol and TKO Sewage Treatment Works
Dewatered Sludge (30% d.s.)
Dewatering (upto 515 tpd)
to be disposed of
at landfills (About 1.3 tpd)
GTW Pre-treatment Process
Biodiesel Production Process
Anxillaries Process Crude Glycerine 80%
(i.e. Wastewater treatment, Sludge treatment, Biogas utilisation) (About 21 tpd)
Figure 3.2b Process Flow Diagram of Proposed Biodiesel Plant Environmental
Resources
FILE: 0077089j
Management
DATE: 05/08/2008