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"Straw oil" can be directly used as a fuel reporter to see the "straw becomes oily" pyrolysis equipment. The staff dumped the smashed wood chips into one end of the pyrolysis equipment and passed the liquefaction unit to produce liquid. Combustible gas and about 10% of ash, where the liquid turns into bio-oil after condensing in a circulating water condensation tower. This bio-oil is passed through the oil pipeline to industrial boilers and kilns and can be used directly as fuel.
According to experts, the bio-oil that has been “changed†into straw can be used as a vehicle fuel after refining and refining.
Oil production rate is generally not less than 50%
“Every summer and summer harvest season, farmers everywhere burn straw in large quantities, leading to serious air pollution. Biomass energy technology uses crop stalks as raw materials and first solves this environmental pollution problem.†Academician Zhu Qingshi, President of China University of Science and Technology says, “China’s biomass The resources are very rich. In the harvest season of a year, there are at least 700 million tons of straw that can be used in our country. For biomass pyrolysis liquefaction technology, the oil production rate is generally not less than 50% for wood chips. 60%, this is quite impressive. Our research goal is not only straw refining technology, but also a new channel for the search for renewable clean energy."
The manuscript is collated by China Chemical Network
Experts also believe that once the technology is put into industrial production, it can not only solve the environmental problems caused by burning straw in rural areas, but the by-product of bio-oil production - carbon powder contains large amounts of organic and inorganic substances, and can also be directly used as a fertilizer. . Farmers can obtain huge economic benefits from the sale of straw and the production of organic fertilizer under the field. According to the calculation, according to the calculation of straw in two quarters per year, at least 260 yuan can be gained from the sale of straw per mu of land. In addition, each "straw-to-oil" facility producing 1 t/h of oil consumes an average of 20,000 tons of raw materials a year, and the collection radius of raw material-straw is approximately 10 kilometers. At each production site, it can also increase by 5 to 6 Personal job opportunities.
The academician Zhu Qingshi, who will build a bio-oil plant with an annual output of 10,000 tons, told reporters that biomass energy technology has successfully developed a pilot plant from today’s theoretical exploration and experimental research, and the relevant experts from the China University of Science and Technology’s Biomass Clean Energy Laboratory A lot of original research work. Although there are not many researchers in the research group, the laboratory has been built as a key laboratory in Anhui Province. In addition, the research results and equipment developed have a strong vitality. Anhui Provincial Party Committee, Provincial Government and Provincial People's Congress paid great attention to this project, and the transformation of technological achievements was supported by Anhui Energy Bioenergy Co., Ltd.
In the introduction materials of Yi Neng Company, the reporter saw that before June of this year, a production plant with an annual output of 10,000 tons of bio-oil will be built in Lancang River in our province, and before the end of the year, it will also produce 5 sets of 10,000 tons per year. The liquefaction facilities were deployed into outlets to achieve an annual production of 60,000 tons of oil. Calculated on the basis of comparable calorific value, only in 2007, it can replace 25,000 tons of heavy oil or diesel, saving energy equivalent to 30,000 tons of standard coal, while saving energy, farmers can increase the income of 25 million yuan by selling straw.
The trial production of “straw oil†pyrolysis technology developed by China National University of Science and Technology has been successful. The refined and refined bio-oil can be used as fuel for vehicles to use wood chips, rice hulls, corn stalks, cotton stalks and other agricultural and forestry wastes after smashing. By simply processing the machine, bio-oil can be directly produced as a boiler fuel. A few days ago, the "biomass pyrolysis and liquefaction technology" developed by the China University of Science and Technology Clean Energy Biomass Laboratory was successfully tested. Each pyrolysis device producing 500 kilograms of oil per hour has been able to continuously produce oil, which produces one ton of oil per hour. The device will also be available in April and May of this year. Yesterday, the reporter went to the factory located in the Heshan Industrial Park in Hefei to explore the entire process of “straw conversionâ€.
September 21, 2023