Portada Mauricio Guevara S.
6O 2 Oxígen Carbon Dioxide 6CO 2 2CO2 Cellulose C 6 H 10 O 5 4CO 2 Less CO less volatile products 6O 2 4CO 2 2 Photosyintesis H 2 O 5H 2 O Water 2C 2 H 5 OH Ethanol 6H 2 0
LACASSINE EXISTING FACILITIES for the processing of sugar cane and sweet sorghum
LACASSINE ETHANOL PLANT Production Of Ethanol From Sugar Cane and Sweet Sorghum INDIAN TECHNOLOGY MORE THAN 300 ETHANOL PLANT OPERATING CAPACITY 22.4 Million Gls/year fuel Alcohol START UP TARGET: 2009
Distillery Products 22.4 GLS/YEAR FUEL ETHANOL 99.5% v/v 24.000 GLS/YEAR FUSEL OIL 600 m3/day SPENT LEES 200Ton/day VINASSE 60 % w/w
FEEDSTOCK Fermentable Sugar Unfermentable Sugar Calcium Volatile Acidity Molasses Syrup Juice % w/w 48 55 13,9 % w/w 3 0,6 0,07 % w/w 1 ppm 6000 2000 450 Brix % 81 57,7 13,5 ph 6 6,2 6,9 CFU/ml 1 1010 3 1 1010 4 10-3000 10-1000 1000
FUEL ALCOHOL FLOW CHART Yeast Molasses Syrup Juice Fermentation Fermented Mash 8% v/v Vinasse 12-16 % w/w Distillation Spent Lees Rectified Ethanol 96% v/v Evaporation Vinasse 60 % w/w Process Condensate Waste Water Treatment Plant Dehydration Soil nutrient Plant Press Mud Fertilizer Fuel Alcohol 99.5 %v/v
MIXED FEED PREPARATION Molasses Syrup 1.25 kg/l 45 % w/w Fermentable sugar Mixed Feed to fermenters Juice Steam Densimeter Volatile Acidity Molasses less 5000 ppm Syrup less 2000 ppm Juice less450 ppm Feed Tank 200 F TI LI Cooling water 200 F TI Magnetic Flow meter PHE 104 F TI Cooling Water
COMPONENTS OF VOLATILE ACIDITY Acetic Acid Butyric Acid Propionic Acid Valeric Acid Destroy yeast cell membrane Decrease Alcohol Productivity of Yeast Decrease Yeast Growth Iso Valeric Acid Maximum in the fermenter 2500 ppm
Effects of Volatile Acidity Volatile Acidity Effect on Relative Yeast Growth & Productivity 120 Relative Specific Growth Rate (%) Relative Specific Productivity (%) 100 80 60 40 20 0 0 1000 2000 3000 4000 5000 6000 7000 Volatile Acidity (ppm) Relative Specific Productivity Relative Specific Growth Rate R
FERMENTATION SECTION Mixed Feed Vinasse Water R-1 R-2 R-3 R-4 1000 m3 Nutrients Sulphuric Acid Mixed Feed + Water Mash to to Distillery Mash Charger Settling tank Air Activation Tank VINASSE RECYCLING 45-60%
Fermentation Operation Conditions Temperature in fermenters: 31 32 C Activation Vessel ph : 3.5-4 Antibiotic Addition: 2 3 ppm Operation Volume: 750 m3 Fermenter Yeast Population / Viability : 450-350 million cel/ml ~ 49 % - 60 % Free Asimilable Nitrogen: 250 ppm Ethanol Concentration: 7.5 8 % v/v Maximum Slugde: Lower than 16 % w/w Vinasse Recycled to fermenter: 45 60 % Volatile Acidity: Maximum 3000 ppm Contamination: Lower than 10 6 CFU/ml Last fermenter residual sugar: 0.75 % w/v
DISTILLATION SECTION Degassifyng Column Mash Mash Column OH Rectifier Colum Steam Rectified Alcohol OH Aldehyde Column Energy recovery From Molecular Sieve Cooling Water Impure Ethanol Flubex Evaporator Steam Vapor Waste Water Treatment Plant Vinasse Spent Lees Process Condesate Vinasse to fertilizer production 45-60% Vinasse to Fermentation
RECTIFIER COLUMN 56 BUBBLE CAP TRAYS
Mash Column 24 Grid trays -Vacuum DISTILLERY Rectifier Column 56 bubble cap trays - Vacuum Distillation Efficiency : 99-99.5% Dehydration Efficiency : 99.5% Fermentation Efficiency : 88-90 % Steam Consumption : 3.5 3.6 kg /liter Ethanol
DEHYDRATION SYSTEM MOLECULAR SIEVES FUEL ALCOHOL 99.5% v/v RECTIFIED ALCOHOL 96 % V/V
DEHYDRATION FLOW DIAGRAM 94 oc 120 oc 25 psia E V A P O R A T O R Superheater Regeneration Liquid 80 % v/v Steam C O L U M N Spent Lees Fuel Alcohol Cooler Alcohol 96 % v/v Condenser Feed Preheater Regeneration Preheater Vacuum System
TORRES ENFRIAMENTO TQ. ECUALIZACION METANIZACION QUEMA DE BIOGAS H 3 PO 4 UREA NaOH CLARIFICADOR TQ. AIREACION LECHOS DE SECADO REACTIVOS PARSHALL BIOFILTRO
DISTILLE - VINASSE PRODUCTION CONVENTIONAL DISTILLERIES PRODUCE 10-16 LITERS VINASSE/LITER ALCOHOL DISTILLERY PRODUCES 1 LITERS VINASSE / LITER ALCOHOL RECIRCULATION 45-60 % VINASSE TO FERMENTATION FOUR LUBEX EVAPORATORS TO CONCENTRATE THE VINASSE
Full Full View View Separator Hot fluid Top Top Bonnet Bonnet Steam Tube 2 Flubex Downcomer- Tube 4 Distributor Caps Distributor Plates Condensate Cold fluid Bottom Bottom bonnet bonnet
WIRE BITS ARE POURED INTO FLUBEX Scaling Wire Bits 5 mm Compared Size Scouring Action ONE MONTH --CONTINUOUS OPERATION DUE TO SELF-CLEANING MECHANISM FROM WIRE BIT ACTION
Products to Vinasses and Mill Mud Cachaza. Bagasse and Mill Mud with vinasses: Organic fertilization in different cultures. Combination or substitution with chemical fertilizers. Vinasses transform in a organic fertilizer (Liquid). Organic fertilization in different cultures by irrigation systems. Combination or substitution with chemical fertilizers. Stabilization of Vinasses similar product to molasses: sustitution of molasses for Cattle. Aglutinated in Concentrated Protein concentrated for animal use.
COMPOSTING PLANT AFTER 65 DAYS WE OBTAIN A FERTILIZER PRESS MUD VINASSE BAGASSE ASH FROM BOILER
Vinasses transform in a organic fertilizer (Liquid).
PLANT VIEW
Louisiana Green Fuels Phone: 337-588 4944 Fax: 337-588 4947 LACASSINE, LA