CHEEERRRSS!!!!!

SEMINAR REPORT

ONPRODUCT

ION OF ETHANOL

FROM MOLASSE

S

PRESENTED BY:- YADVENDRA YADAV ; CHEMICAL ENGG. 3RD YEAR

TABLE OF CONTENTS

INTRODUCTION

ETHANOL PRODUCTION FROM SUGAR CANE

CHEMICAL REACTIONS INVOLVED

FLOW SHEET FOR ETHANOL PRODUCTION

FLOW SHEET FOR SEPARATION PROCESSES

FLOW SHEET FOR QUALITY CONTROL OF ETHANOL

FACTORS AFFECTING CONCENTRATION OF MOLASSES

MAJOR ENGINEERING PROBLEMS

USES OF ETHANOL

HEALHT EFFECTS OF ETHANOL : GOOD OR BAD

INTRODUCTION

MOLASSES

STARCH CELLULOSE

ETHANOL

There are three fermentation methods by which we can produce Ethanol :-

SUGAR CANE

MAIZE BAGASSE

EHTANOL PRODUCTION FROM SUGAR CANE

SUGAR CANE

SUGARINDUSTRY

FOR ETHANOL

PRODUCTION

Molasses

(a) Main Reaction

C H O + H O 2 C H O

C H O 2 C H OH + 2CO

Invertase

Zymase

12 22 11 2 6 12 6

6 12 6 2 5 2 H = - 31.2 kcal

(b)Side Reaction

2C H O + H O ROH + R CHO

26 12 6

higher mol. wt. alcohols

CHEMICAL REACTIONS INVOLVED

FLOW SHEET FOR PRODUCTION OF

ETHANOLYEAST

CULTURETANK

NUTRIENTS

co2

h2o

MOLASSESSTERILIZER

STEAM

YEAST STORAGE

FERMENTATIONTANKNUTRIENTS

h2o

STR

IPPER h2o

co2

h2o

WATER SRUB WITH 1-2% ALCOHOL

PRODUCED ALCOHOL

TOSEPARATION

UNIT

CONTINUOUS DILUTER

START

MOLASSESSTORAGE

MOLASSES

FLOW SHEET FOR SEPARATION PROCESSES

PRODUCEDALCOHOL

FROMPRODUCTIO

NUNIT H

FUSEL OIL

ALDEHYDE COLUMN

h2o

P

C

C

STORAGE

95% ethanol

Forqualitycontrol

h2o

C

P

REC

TIF

YIN

G

CO

LUM

NBE

ER

S

TIL

L

HP

C

TO WASTE DISPOSAL OR EVAPORATOR TO PRODUCE CATTLE FEED OR FERTILIZERS

FLOW SHEET FOR QUALITY CONTROL OF ETHANOL

c

STR

IPPER

MAKE-UP C6H6

AN

HYD

RO

US

S

TIL

L

100% ethanol

TO RECTIFYING COLUMN FOR RE-

USE

DENATURANT

DENATURED ALCOHOL

FACTORS AFFECTING COMPOSITION OF MOLASSES

Variety of cane

Composition of soil

Climatic conditions

Harvesting practices

Sugar manufacturing process

Handling and storage

MAJOR ENGINEERING

PROBLEMS

Collection and storage of MOLASSES.

Maintenance of sterile and specific yeast culture conditions.

Batch versus continuous operation.

Waste disposal problem.

Fuel economy in the series of distillations.

USES OF ETHANOL

Ethanol can be used as a fuel.

Ethanol can also be used as Rocket fuel.

Ethanol can be used as alcoholic beverages.

It can be used as an antiseptic.

Ethanol is easily miscible in water and is a good solvent.

Ethanol is less polar than water and is used in

perfumes, paints and tinctures.

Ethanol is also used in design and sketch art markers.

HEALTH EFFECTS OF ETHANOL : GOOD OR BAD

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