Bio-Diesel |
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The Next Generation Sustainable Fuel
What is Bio Diesel?
The concept dates back to 1885 when Dr. Rudolf Diesel built
the first diesel engine with the full intention of running it
on vegetative source.
He first displayed his engine at the Paris show of 1900 and
astounded everyone when he ran the patented engine on any hydrocarbon
fuel available - which included gasoline and peanut oil. In 1912
he stated " … the use of vegetable oils for engine fuels may
seem insignificant today. But such oils may in the course of
time become as important as petroleum and the coal tar products
of present time."
Scientists discovered that the viscosity ( thicKness) of vegetable
oils could be reduced in a simple chemical process In 1970 and
that it could work well as diesel fuel in modern engine.
This fuel is called Bio- Diesel.
Since than the technical developments have largely been completed.
Plant oil is highly valued as Bio fuel "Diesel" and transformed
into Bio Diesel in most industrialised
Please note!!!
- This vegetable oil can be used as it is crushed – ie - unrefined
in the engines of cars
- This vegetable oil can be blended with normal diesel and
used in cars.
- This vegetable oil can be refined and sold as pure diesel
- Refined it can be exported as a clean fuel to anywhere in
the world.
Bio Diesel is asubstitute for, or an additive to, diesel fuel
that is derived from the oils and fats of plants, like Sunflower,
Canola or Jatropha.
It is an alternative fuel that can be used in diesel engines
and provides power similar to conventional diesel fuel.
Bio Diesel is arenewable domestically produced liquid fuel that
can help reduce the countries dependence on foreign oil imports.
Recent environmental and economic concerns (Kyoto Protocol)
have prompted resurgence in the use of biodiesel throughout the
world. In 1991, the European Community, (EC) Proposed a 90% tax
reduction for the use of biofuels, including biodiesel.
Today, 21 countries worldwide, produce Biodiesel.
The Advantages of Bio Diesel
- Bio Diesel is the most valuable form of renewable energy
that can be used directly in any existing, unmodified diesel
engine.
- Energy Independence: Considering that oil
priced at $60 per barrel has had a disproportionate impact
on the poorest countries, 38 of which are net importers and
25 of Which import all of their oil; the question of trying
to achieve greater energy independence one day through the
development of biofuels has become one of ‘when’ rather than ‘if,’ and,
now on a near daily basis, a biofuels programme is being launched
somewhere in the developing world.
- Smaller Trade Deficit: Rather than importing
other countries’ ancient natural resources, we could be using
our own living resources to power our development and enhance
our economies. Instead of looking to the Mideast for oil, the
world could look to the tropics for biofuels. producing more
biofuels will save foreign exchange and reduce energy expenditures
and allow developing countries to put more of their resources
into health, education and other services for their neediest
citizens.
- Economic Growth: Biofuels create new markets
for agricultural products and stimulate rural development because
biofuels are generated from crops; they hold enormous potential
for farmers. In the near future—especially for the two-thirds
of the people in the developing world who derive their incomes
from agriculture.
Today, many of these farmers are too small to compete
in the global market, especially with the playing
field tilted against them through trade distorting
agricultural subsidies. They are mostly subsistence
farmers who, in a good year, produce enough to
feed their families, and in a bad year, grow even
poorer or starve. But biofuels have enormous potential
to change this situation for the better.
At the community level, farmers that produce dedicated
energy crops can grow their incomes and grow their
own supply of affordable and reliable energy.
At the national level, producing more biofuels
will generate new industries, new technologies,
new jobs and new markets.
- Cleaner Air: Biofuels burn more cleanly
than gasoline and diesel. Using biofuels means producing fewer
emissions of carbon monoxide, particulates, and toxic chemicals
that cause smog, aggravate respiratory and heart disease, and
contribute to thousands of premature deaths each year.
- Less Global Warming: Biofuels contain carbon
that was taken out of the atmosphere by plants and trees as
they grew. The Fossil fuels are adding huge amounts of stored
carbon dioxide (CO2) to the atmosphere, where it traps the
Earth's heat like a heavy blanket and causes the world to warm.
Studies show that biodiesel reduces CO2 emissions to a considerable
extent and in some cases all most nearly to zero.
In Nut-shell:
- Bio Diesel is the most valuable form of renewable energy
that can be used directly in any existing, unmodified diesel
engine.
- Bio Diesel fuel and can be produced from oilseed plants such
as rape seeds, sunflower, canola and or JATROPHA CURCAS.
- Bio Diesel is environmental friendly and ideal for heavily
polluted cities.
- Bio Diesel is as biodegradable as salt
- Bio Diesel produces 80% less carbon dioxide and 100% less
sulfur dioxide emissions. It provides a 90% reduction in cancer
risks.
- Bio Diesel can be used alone or mixed in any ratio with mineral
oil diesel fuel. The preferred ratio if mixture ranges between
5 and 20% (B5 - B20)
- Bio Diesel extends the live of diesel engines
- Bio Diesel is cheaper then mineral oil diesel
- Bio Diesel is conserving natural resources
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The Process The process of converting vegetable oil into biodiesel fuel is
called Transesterification and is luckily less complex then it
sounds. Chemically, Transesterification means taking a triglyceride molecule,
or a complex fatty acid, neutralizing the free fatty acids, removing
the glycerin, and creating an alcohol ester. This is accomplished
by mixing methanol with sodium hydroxide to make sodium methoxide.
This liquid is then mixed into the vegetable oil. After the mixture
has settled, Glycerin is left on the bottom and methyl esters,
or biodiesel is left on top and is washed and filtered. The final product Bio Diesel fuel, when used directly in a Diesel
Engine will burn up to 75% cleaner then mineral oil Diesel fuel. The Technology The technology is mature and proven Presently, the indigenously designed bio-fuel plant
for 250 lt./day is in operation. We have to design
and develop bio-fuel plants of 3 to 10 tones per day
capacity for installation in different parts of the
country. Effective marketing chain needs to be planned
for enabling farmers to reap the benefits directly.
Bio-fuel mission will provide technological and employment
generation focuses for the rural sector. Use of eleven
million hectares of wasteland for Jetropha cultivation
can lead to generation of minimum twelve million jobs The Cost The cost of Bio Diesel is largely dependent on the
choice of feedstock and the size of the production
facility. |
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FEED
STOCK PRODUCTION PER HECTARE & COST
THEREOF |
FEEDSTOCK |
Country |
Yield/hectare (kg) |
Rate per barrel(US$) |
SOYA OIL |
USA |
375 |
73 |
| RAPESEED OIL |
Europe |
1000 |
78 |
| JATROPHA OIL |
INDIA |
3000 |
43 |
PALM OIL |
Malaysia |
5000 |
46 |
International Laws and regulation |
Several
countries have active Biodiesel programmes. Such countries also
have given
legislative support and have drawn up national polices on biodiesel
development. Wide variety of motives for action taken can observe
like
-
Increase of energy supply
security
-
Reduction of dependence
on fossil energy forms
-
Reduction of harmful locally acting emissions.
-
Protection of soil by biodegradable products
-
Reduction of health hazard by using non-toxic
products.
Biodiesel Scenario In India As India is deficient in edible
oils, non-edible oil is the main choice for producing biodiesel.
According to Indian
government policy and Indian technology effects. Some development
works have been carried out with regards to the production of transesterfied
non edible oil and its use in biodiesel by units such as Indian
Institute of Science, Bangalore, Tamilnadu Agriculture University
Coimbatore and Kumaraguru College of Technology in association
with Pan horti consultants. Coimbatore. Generally a Blend of 5%
to 20% is used in India (B5 to B20). Indian Oil Corporation has
taken up Research and development work to establish the parameters
of the production of tranesterified Jatropha Vegetable oil and
use of bio diesel in its R&D center at Faridabad. Research
is carried out in Kumaraguru College of Technology for marginally
altering the engine parameters to suit the Indian Jatropha seeds
and to minimize the cost of transesterification.
|
| Area Coverage vs. Blending Requirements |
Year |
|
Bio-Diesel @ 5% MMT |
Area for 10% Mha |
Bio-Diesel @10% MMT |
Area for 10% Mha |
Bio-Diesel @20% MMT |
Area for 20% Mha |
2005-06 |
49.56 |
2.48 |
2.07 |
4.96 |
4.14 |
9.91 |
8.28 |
2006-07 |
52.33 |
2.62 |
2.19 |
5.23 |
4.38 |
10.47 |
8.76 |
2011-12 |
66.90 |
3.35 |
2.79 |
6.69 |
5.58 |
13.38 |
11.19 |
Bio Diesel Experiments Initially 5% of the bio diesel was blended with High-speed
diesel and later increased to 20%. The railway and Indian oil corporation
has successfully used 10% blended biodiesel fuel in train running
between Amritsar and New Delhi in the month of Feb 2003. At Kumaraguru
College of Technology an auto rickshaw was run on pure biodiesel
(B100) prepared from Jatropha oil. Conclusion As a substitute for fast depleting fossil fuel. Bio
diesel had come to stay. In future, it should also serve to reduce
and maintain the price of automobile fuel. The under exploited
and un exploited vegetable oils are good sources of biofuel. Our
country is endowed with many such plants. Research is being carried
out now to convert vegetable oils into biodiesel through biotechnological
processes using biodiesel. With a concentrated and coordinated
effort. Wide use of bio diesel in our country is going to be a
reality in the days to come. A national mission on Bio-Diesel
has already been proposed by the committee comprising six micro
missions covering
all aspects of plantation, procurement of seed, extraction of oil,
trans-esterification, blending & trade, and research and development.
Diesel forms nearly 40% of the energy consumed in the form of hydrocarbon
fuels, and its demand is estimated at 40 million tons. Therefore blending becomes the important National
Issue which apart from giving the dividends , it saves the country's
exchequer. India has vast stretches of degraded land, mostly in
areas with adverse agro- climatic conditions, where species of
Jatropha , Mahua etc can be grown easily. Even 30 million hectares planted for bio- diesel can completely
replace the current use of biofuels. The production of Bio fuels
will also boost the rural economy which will bring more enthusiasm
in more than one billion lives in the area
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