Primary energy refers to energy that can be supplied in ready-to-use forms in nature (solar energy, wind energy, tidal energy, geothermal energy). Secondary energy refers to energy that must be produced indirectly by relying on other energy sources. (i.e. primary energy). Energy (coal, straw, natural gas, electric energy, hydrogen energy, alcohol)
Coal, straw, natural gas, electric energy, hydrogen energy, alcohol, etc., are all formed by plants at the as a result of long-term changes in nature. This requires the injection of primary energy. In fact, these elements store primary energy and become secondary energy (of course, electrical energy is different. Electrical energy can be converted). solar energy to become a secondary energy, or coal can be used to generate electricity to become a secondary energye third level)
What is renewable energy derived from the combustion of organic materials such as wood and alcohol?
(1) Ethanol gasoline contains ethanol and gasoline, which is a mixture
(2) The chemical equation of ethanol combustion is: C2H5OH+3O2
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(3) Ethanol gasoline has many advantages as a vehicle fuel, such as reducing environmental pollution, l economy of fossil fuels, increasing the added value of agricultural products, etc. ;
(4) Modern Society has a growing demand for energy, the energy of reactionsns chemicals can no longer meet human needs. At present, people are using and developing many new energy sources, such as solar energy, wind energy, geothermal energy, tidal energy and biomass energy. and nuclear energy, etc. so the answer is: solar energy.
So the answer is:
(1) Mixing
(2)
(3) Reduce environmental pollution , save fossil fuels, Increase the added value of agricultural products, etc.
(4) Solar energy
Renewable energy obtained from the combustion of materials organic materials such as wood and alcohol is biomass energy.
The energy provided by living matter is called biomass energy. Burning wood can provide biomass energy, and food can provide biomass energy. Biomass energy is the energy provided by plants viboasts in nature. These plants use biomass as a means of storing solar energy and are renewable energy sources.
Biomass is a renewable resource. Biomass energy can be regenerated through plant photosynthesis. It is a renewable energy source equivalent to wind and solar energy. It is rich in resources and can ensure sustainable use of energy.
Detailed information:
The sulfur and nitrogen content of the biomass is low , and the combustion process There are less SOX and NOX generated in the process; When biomass is used as fuel, because the carbon dioxide it requires during its growth is equivalent to the amount of carbon dioxide it emits, the net emissions of carbon dioxide into the atmosphere are close to zero , which can effectively reduce the greenhouse effect.
Biomass includes all plants, microorganisms, animals that feed on plants and microorganisms, as well as the waste they produce. Representative biomass includes crops, agricultural waste, wood, wood waste and animal manure.
Baidu Encyclopedia-Biomass Energy