A KIND OF BIOFUEL CLUMPS

TYPE DE MORCEAUX DE BIOCARBURANT

English Abstract

A kind of new biofuel shaped into bio-based fuel clumps and particles are made
from
the organic materials such as wheat straws, corn stalks, corn cobs, soybean
straws,
rice straws, reed sticks, wood dusts, wood blocks, branches, leaves, shells,
pomace,
bagasse, sunflower stalks, hay, bran, wheat bran and waste paper. They are
compressed to 1/20 - 1/30 of their original volumes, after been crushed,
mixed, dried
and pressurized. The shaped clumps or particles combustion value is greatly
increased,
equivalent to the value of standard coal combustion (7000 Kcal) of 50-70%.
With
extended burning time, there are many other added excellent features, such as
easier
to be stored or transported, not easy to catch fire and to decay. Therefore,
this kind of
bio-fuel will become new bio-energy that need to be vigorously developed in
future.

Claims

Claims
1. A kind of biofuel clumps or particles produced by grinding, heating and
high
pressure mainly with wheat straws, corn stalks, corn cobs, soybean straws,
rice straws,
reed sticks, wood dusts, wood blocks, branches, leaves, shells, pomace,
bagasse,
sunflower stalks, hay, bran, wheat bran, waste paper and other bio-based
materials;
2. According to
claim 1, the kind of biofuel clumps or particles has such a feature:
they are the clumps or particles compressed by mainly one or several organic
materials such as wheat straws, corn stalks, corn cobs, soybean straws, rice
straws,
reed sticks, wood dusts, wood blocks, branches, leaves, shells, pomace,
bagasse,
sunflower stalks, hay, bran, wheat bran and waste paper;
3. According to claim 1, the kind of biofuel clumps or particles has such a
feature:
they are compressed and molded by heating and high pressure.
4. According to claim 1, the kind of biofuel clumps or particles has such a
feature:
first, shattering the wheat straws, corn stalks, corn cobs, soybean straws,
rice straws,
reed sticks, wood dusts, wood blocks, branches, leaves, shells, pomace,
bagasse,
sunflower stalks, hay, bran, wheat bran, waste paper and other organic
materials into
1-2 mm fragments. Second, adding water and binders and mixing the fragments
under
the gradual heating condition. Third, putting the fragments into forming
machines for
extrusion molding;
5. According to claims 1, the kind of biofuel clumps or particles has such a
feature:
the wheat straws, corn stalks, corn cobs, soybean straws, rice straws, reed
sticks,
wood dusts, wood blocks, branches, leaves, shells, pomace, bagasse, sunflower
stalks,
hay, bran, wheat bran, waste paper and other organic materials shall be mixed
with
water and binders in a certain proportion. The ratio of organic materials to
water and
binders is 80-85: 14 -18: 2-5;
6. According to claim 1, the kind of biofuel clumps or particles has such a
feature: the
size of fuel clumps or particles can be adjusted as needed;
7. According to claim 1, the kind of biofuel clumps or particles has such a
feature: the
binders are natural materials such as waste paper pulp and glutinous rice (a
kind of
rice) milk. The purpose to add binder is to hold the shape of biofuel clumps
or
particles;

Description

CA 02829667 2013-10-04
Description
Field of Technology
This patent involves a kind of compressing biofuel.
Technical Background
The earth provides human beings with endless variety of plants which grow year
after
year and provide the necessities for human lives and a part of these
substances have
been used as fuels for human beings. However, with the extensive development
of
coal, oil and natural gas, man has become estranged from these kinds of fuels
or the
products of these fuels -- biofuels. Since the fossil fuels such as oil, coal
and natural
gas, which are non-renewable resources, are facing the increasingly expensive
cost,
strict environmental restrictions, and massive exhaustion, man is in urgent
need of
finding alternative resources for fuels. Therefore, turning back to the use of
renewable
fuels or biofuels becomes a necessary choice for man.
At present, it is difficult to use biological raw materials directly as fuel
mainly because
wheat straws, corn stalks, corn cobs, soybean straws, rice straws, reed
sticks, wood
dusts, wood blocks, branches, leaves, shells, pomace, bagasse, sunflower
stalks, hay,
bran, wheat bran and waste paper have many problems such as relatively low
fuel
value, short burning time, need of large storage space, easy to be perishable
and cause
fire as well as high transportation cost. This patent is put forward to solve
the
problems inherent in the use of bio-based fuel products, especially the low
fuel value
and short burning time.
Summary of the Invention
The application for this utility model patent aims to solve some problems of
the
bio-based fuels products we referred above, such as the low fuel value, short
burning
time, need of large storage space and high transportation cost, by turning the
biological raw materials into biofuels by high-temperature and high-pressure
compresses;
1. According to the claims, this kind of biofuel are entirely compressed and
produced
from natural plants or natural plant products which are discarded as wastes.
These
plants mainly include the wheat straws, corn stalks, corn cobs, soybean
straws, rice
straws, reed sticks, wood dusts, wood blocks, branches, leaves, shells,
pomace,
bagasse, sunflower stalks, hay, bran, wheat bran and waste paper. Currently,
only a
small part of these natural plant wastes have been reused, and most of them
are
disposed as wastes or garbage. This patent is to promote the efficient
utilization of

CA 02829667 2013-10-04
these natural plants and natural plant products effectively.
2. According to the claims, one or several kinds of natural plants or natural
plant
products, such as the wheat straws, corn stalks, corn cobs, soybean straws,
rice straws,
reed sticks, wood dusts, wood blocks, branches, leaves, shells, pomace,
bagasse,
sunflower stalks, hay and waste paper, should be shattered into 1-5 mm
fragments in
order to facilitate the mixing and compression molding in subsequent steps.
3. According to the claims, these fragments of natural plants or natural plant
products
should be put into specific containers and mixed with water and binders in a
certain
proportion. The water and binders should be uniformly distributed so as to
ensure the
uniformity of each composition of the compressed clumps or particles. The
ratio of
organic materials to water and binders is: 80-85% of organic material, 14-18%
of
water and 2-5% of binders. The reason why water is added is that water
contributes to
the intensive mixing of organic materials and binders in the compression
process, so
that the clumps or particles will become easier to shape. The binder is added
to make
the shaped clumps or particles not easy to be scattered and fragmented.
4. According to the claims, these organic materials should be heated to 120-
160
degrees in the mixing process with the purpose of softening the materials
enough
during the compression process so that the materials can be compressed more
tightly,
thereby improving the fuel value of clumps or particles. The heating
temperature can
be adjusted based on the nature of organic materials.
5. According to the claims, the mixture of organic materials should be put
into
forming machines to be compressed into clumps or particles as needed (Figure).
The
compression ratio is 20-30 times the volume of raw organic materials. Namely,
the
organic materials such as wheat straws, corn stalks, corn cobs, soybean
straws, rice
straws, reed sticks, wood dusts, wood blocks, branches, leaves, shells,
pomace,
bagasse, sunflower stalks, hay, bran, wheat bran and waste paper should be
compressed to 1/20 - 1/30 of their original volumes. The shaped clumps or
particles
can be used after being dried in the air or by heating.
6. After the high temperature compression, the fuel value of these organic
materials
greatly increase and their calorific value can be up to 3200-5000 kcals,
equivalent to
the fuel value of coke oven gas (4000 kcals) and 50-70% of the fuel value of
standard
coal (7000 kcals). Besides, in addition to the longer burning time, they are
easier to be
stored and transported, as well as not easy to catch fire and decay.
Therefore, they will
become a kind of energy resources that need to be vigorously developed in
future.
2

Representative Drawing