Biomass granule calorific value table

                                                      Biomass granule calorific value table

Energy according to its shape can be divided into: solid fuel, liquid fuel, gas, fuel, according to the form of energy can be divided into chemical energy, hydropower, nuclear power, electricity, solar energy, biomass energy, wind energy, oceanic energy, and geothermal energy, etc. From the impact on the environment can be divided into clean energy and clean energy, the former can also be referred to as the "green" energy. According to whether the renewable divided into renewable energy and non-renewable energy. According to the energy development and utilization of the form can be divided into primary energy and secondary energy.

With the rapid growth of China's economy, the energy consumption based on fossil energy has also increased sharply, and the pressure on the environment is also increasing. In 2003, China's carbon dioxide emissions reached 823million tons, ranking second in the world. Its sulfur dioxide emissions exceeded 20million tons, ranking first in the world. Acid rain areas have accounted for more than 30% of China's land area. Around 2005, China's carbon dioxide emissions have surpassed that of the United States, leaping to the top of the world. 70% of China's carbon dioxide emissions, 90% of its sulfur dioxide emissions and 2/3 of its nitrogen oxide emissions come from coal. With the increasing pressure from environmental protection, it is imperative to implement energy conservation and emission reduction and promote low-carbon life. As a major energy consuming country, China plays an important role. On march8,2011, China announced the binding indicators for industrial energy conservation and emission reduction this year: China's energy consumption per unit of industrial added value and carbon dioxide emissions will be reduced by more than 4% and 4% respectively compared with 2010.
Under the background of the above international energy forms, biomass energy is developing rapidly. Biomass energy is the solar energy fixed on the earth by the photosynthesis of plants. It is most likely to become one of the main new energy sources in the 21st century. According to statistics, the energy stored by plants every year is about 10 times of the world's main fuel consumption; However, the utilization of energy is less than 1% of the total. Biomass energy conversion technology can efficiently use biomass energy to replace fossil energy, so as to reduce the dependence on mineral energy and reduce the environmental pollution caused by energy consumption. Experts believe that biomass energy will become an important part of sustainable energy in the future. By 2015, 40% of global total energy consumption will come from biomass energy. Biomass energy has the following characteristics: renewable, high calorific value, low pollution, zero emission, high density, etc. Biomass solidification is a form of biomass energy utilization.
Energy saving comparison (taking the energy consumption of heating 1 ton of water from 10 ℃ to 43 ℃ per hour as an example):
Selected energy
Energy consumption
Energy unit price
calorific value
Utilization
Cost of use
Ratio times
remarks
electric
39.7kw
1.0 yuan /kwh
860 kcal
97%
39.7 yuan
4.62x
Extremely expensive
Light diesel oil
3.7kg
8.0 yuan /kg
10500 kcal
85%
29.7 yuan
3.45x
Diesel is difficult to buy; High cost
natural gas
4.9m3
3.5 yuan /m3
8000 kcal
85%
17 yuan
1.98x
High account opening fee; Restricted by Region
Air source water heater
39.7kw/3.5
1.0 yuan /kwh
860 kcal
97%
11.7 yuan
1.36x
Expensive equipment; Limited power supply in winter
Conventional coal
8.8kg
1.0 yuan /kg
5000 kcal
70%
9.5 yuan
1.10x
High pollution; Insufficient combustion
Biomass particle
8.6kg
1.0 yuan /kg
4300 kcal
90%
8.6 yuan
1.00x
Government support; Environmental protection and low cost
Comparison of various biomass particle parameters
Biomass particle type
Biomass source
Low calorific value (kg/ kcal)
Density (t/m3)
ash content
pine
Red red, white pine, fir
4300~4500
≥1.20
≤0.9%
Hard miscellaneous wood
Oak, catalpa and elm
four thousand and five hundred
≥1.22
≤0.9%
Soft miscellaneous wood
Poplar, birch, fir
four thousand and three hundred
≥1.20
≤1.1%
crops
Bean Stalk, cotton stalk, peanut shell
three thousand and eight hundred
≥1.15
≤6.0%
Corn stalk and Rape Stalk
three thousand and seven hundred
≥1.15
≤6.0%
Wheat straw
three thousand and five hundred
≥1.10
≤7.0%
Potato straw
three thousand and four hundred
≥1.10
≤7.0%
Rice straw
three thousand and two hundred
≥1.10
≤8.0%
Comparison table of various fuels
name
Average low calorific value
Unit price (yuan / kg)
Heat utilization
Heating 1 ton of water at 100 ℃
Types of polluting elements
KJ /kg
Kcal /kg
raw coal
twenty thousand nine hundred and thirty-four
four thousand nine hundred and eighty-four
one
zero point eight zero
twenty-five point zero eight
sulfur
crude oil
forty-one thousand eight hundred and sixty-eight
nine thousand nine hundred and sixty-nine
four point seven
zero point eight five
fifty-five point four seven
sulfur
gasoline
forty-three thousand one hundred and twenty-four
ten thousand two hundred and sixty-eight
ten
zero point eight five
one hundred and fourteen point five eight
sulfur
kerosene
forty-three thousand one hundred and twenty-four
ten thousand two hundred and sixty-eight
nine
zero point eight five
one hundred and three point one two
sulfur
Light diesel oil
forty-two thousand seven hundred and five
ten thousand one hundred and sixty-eight
eight point five
zero point eight five
ninety-eight point three five
sulfur
Liquefied petroleum gas
forty-seven thousand four hundred and seventy-two
eleven thousand three hundred and three
seven point nine three
zero point eight five
eighty-two point five four
sulfur
Coke oven gas
16746 joules /m3
3987 kcal /m3
seven point six
zero point eight five
two hundred and twenty-four point five zero
sulfur
1 kWh
857 kcal / degree
0.5 yuan / degree
zero point nine zero
sixty-eight point six three
nothing
Sawdust particles
four thousand and four hundred
one
zero point nine zero
twenty-five point two five
nothing