"Changing out" new energy sources on land - "Biomass Town"

At the current Kunming Trade Fair, the bio-industry has become the focus of attention of all walks of life, and a series of forums around the bio-industry are also in full swing. In the electromechanical museum, "Electan Research New Energy", one of the most powerful new energy application developers in Yunnan, has exhibited the "Yunnan level" of the biomass industry for participating countries.

In the two days since the opening of the "Kunming Trade Fair," Hall 1 of the Electrical and Mechanical Museum entered the gate of the Kunming Dianyan New Energy Technology Development Co., Ltd., and a green energy use sandbox was constantly visited by government officials and merchants.

On the morning of June 6, when reporters came to the pavilion, Caizheng Da, chairman of Dianyan New Energy, was busy introducing products to the first wave of merchants. On June 7, when reporters came to the booth again, the publicity materials there were already running out.

"Biomass town" opens up new ways to use energy

In the sand table specially produced by E-Research New Energy, the “biomass town” conceived was displayed. From this sand table, the reporter saw an “agriculture-industry” integration system with biomass energy in series.

Cai Zhengda introduced that in the "agricultural area" represented by the sand table, the corn and wheat grown by farmers are "energetic". The solar energy that is fixed in the living body through photosynthesis globally generates about 170 billion tons of biomass each year. Biomass energy is 10 times the current human total energy consumption.

On the farmer's land, straw, rice hulls, and branches are often treated as "waste." If they are transported to the “manufacturing area” of “biomass-forming fuels and carbonization plants”, these “wastes” are dried under special equipment and then compressed to a certain, denser shape under certain pressure. Solid pieces, they successfully "turn waste into treasure."

Cai Zhengda gave an example: “In these solid compacts, compacts with a density of 1.0-1.2 g/cm3 have a calorific value of 13381-16726 kJ/kg and a sulfur content of 0.3% or less, which can be used as an alternative fuel for coal. For industrial production, biomass carbon produced by a carbonization plant can be used as a reducing agent in the metallurgical industry such as industrial silicon and ferrosilicon to replace coke."

Therefore, at the "biomass-forming fuel and carbonization plant," yellow densely shaped bulk fuel and black biomass carbon are being continuously transported by "trucks" to factories in the "industrial zone" as alternative fuels for coal. .

Biomass power has a "money" view

In the "manufacturing area," biomass can also be used to generate electricity. Biomass is used as fuel, and oxygen-controlled combustion is performed at room temperature to pyrolysis and gasify the fuel to produce combustible gas. After the combustible gas is dusted and boosted, it can provide clean gas to each generator set to generate electricity.

According to different biomass feedstocks, every 1.5-1,8 kilograms of biomass is burned for one degree of electricity and 20%-25% of biochar is obtained at the same time. Caizheng Da calculated for the reporter: The raw material price is 200 yuan/ton, and the cost per kilowatt hour is 0.45-0.51 yuan. The on-grid electricity price implements the national policy of 0.75 yuan/degree, and the economic benefits are significant.

The investment per kilowatt of solar power is about 35,000 yuan, the wind energy is 10,000 yuan per kilowatt, and the investment per kilowatt of waste straw is only 0.6 yuan. This is where the power of biomass as a renewable energy source lies.

At present, the electric energy gasification power generation unit of China Electric New Energy has been exported to Southeast Asia. Caizheng Da said that Yunnan has a number of remote mountain villages still tolerate the pain of no electricity. If the introduction of a small biomass power generation system as a supplemental energy source can solve the problem of power consumption in rural Yunnan's rural population, it is a low cost and effective The way of power supply; on the other hand, turning straw into treasure reduces the emission of carbon dioxide, sulfur dioxide, and nitrogen oxides. It also avoids the cutting of forests and protects the ecological environment.

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