Household, industrial and animal waste needs recycling and gas generators, and the use of crops for biodiesel production can be a solution.

Household, industrial and animal waste needs recycling and gas generators, and the use of crops for biodiesel production can be a solution.

Для этих целей могут быть использованы стебли и корнеплоды таких культур как хлопок, различные зерновые, рис и картофель, которые на сегодня используются как корм для скота. «Один гектар, засеянный хлопком, может дать около трех-семи тонн хлопкового стебля с содержанием влаги 23-62%, что может быть преобразовано в два-четыре тонны сухого стебля в расчете на один гектар»

The use of fossil resources causes important environmental impacts such as global warming, ozone depletion, deforestation, acidification, photo chemical smog and eutrophication. As a result of these factors, in addition to others, there is a need for an urgent search for alternative energy sources which are economically effective, environmentally sound and socially accepted.

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Biodiesel, as shown by experiments, when ingested in water does not harm plants and animals. In addition, it is subjected to almost complete biological decay: in soil or water, microorganisms process 99% of biodiesel in 28 days, which allows us to talk about minimizing pollution of rivers and lakes.

Reducing CO2 emissions. When biodiesel is burned, exactly the same amount of carbon dioxide is released that was consumed from the atmosphere by the plant, which is the raw material for the production of oil, for the entire period of its life. Biodiesel in comparison with conventional diesel fuel contains almost no sulfur. This is good from the point of view of ecology.

Biofuel can be produced from bio wastes. So, it has prospects in all countries.

High ignition temperature. The ignition point for biodiesel exceeds 150°C, which makes the bio-combustible relatively safe substance. A by-product of production is glycerol, which is widely used in industry. Purified glycerin is used for the production of technical detergents (for example, soap). After deep cleaning, pharmacological glycerin is obtained, a ton of which costs about 1 thousand euros on the market. By adding phosphoric acid to glycerine, phosphoric fertilizers can be obtained. Midland group is developing this technology in Uzbekistan and plans to launch a network of gas stations in all regions of the country in the near future.

The main practical benefit of using alternative biofuels is that, within certain volume limits, they can be combined with traditional "fossil" fuels and used in existing energy systems, such as passenger car and truck engines.

There are two main conservation factors in using biofuels instead of fossil fuels. First, biofuels are a renewable resource, so they are a long-term, relatively cheap and reliable source of energy. Second, biofuels emit much less greenhouse gases in their production cycle and use.

The so-called "second generation biofuel", a synthetic fuel, although derived from biomass, mimics the chemical characteristics of fossil fuels. This makes it possible to integrate it more deeply into existing fuel systems. It can also be produced with a greater proportion of "wood" biomass, such as straw, rather than corn itself.

Uzbekistan intends to develop the production of biofuels based on low-demand, inefficiently used types of agricultural products, a representative of the Ministry of foreign economic relations, investment and trade (mwesit) of Uzbekistan told RIA Novosti on Tuesday.

In particular, we are talking about sorghum-spring culture, which is characterized by heat-loving, very high drought resistance, salt resistance, easily adapts to different soils. "Conventional plant for the production of alcohol can be converted to bio-ethanol production from sorghum. Also promising are the organization of the second and third generation of biofuel production from plant stems and microalgae».

In the production of biodiesel, the esterification reaction results in a mixture that is allowed to settle. The light top fractions of the product are rapeseed methyl ether, or biodiesel.

Dignities

Good lubrication characteristics. Mineral diesel fuel loses its lubricating properties when sulfur compounds are removed from it. Biodiesel, despite its significantly lower sulfur content, is characterized by good lubricating properties, which prolongs the life of the engine. This is due to its chemical composition and oxygen content.

Higher Cetane number

For mineral diesel fuel 42-45,

For biodiesel (methyl ether) at least 51.

Uzbekistan intends to develop the production of biofuels based on low-demand, inefficiently used types of agricultural products, a representative of the Ministry of foreign economic relations, investment and trade (mwesit) of Uzbekistan told RIA Novosti on Tuesday.

In particular, we are talking about sorghum-spring culture, which is characterized by heat-loving, very high drought resistance, salt resistance, easily adapts to different soils. "Conventional plant for the production of alcohol can be converted to bio-ethanol production from sorghum. Also promising are the organization of the second and third generation of biofuel production from plant stems and microalgae." For these purposes, the stems and roots of crops such as cotton, various grains, rice and potatoes, which are currently used as fodder for livestock, can be used. "One hectare sown with cotton can yield about three to seven tons of cotton stem with a moisture content of 23-62%, which can be converted into two to four tons of dry stem per hectare."

Employees Of the Institute of materials science of the NGO "Physics-Sun" of the Academy of Sciences of Uzbekistan became the authors of processing cotton stems by exposure to concentrated sunlight.

Scientists suggest that crushed cotton waste be placed in a transparent reactor made of quartz glass, in which a liquid is formed under the influence of sunlight, which can be used as fuel for vehicles and agricultural vehicles, Uzbekistan Today reports.

The fact is that the country annually collects 5-6 million tons of cotton stalks, which is why it was decided to find a use for such raw materials.

In Uzbekistan, the production and use of biofuels is sporadic. These are mostly isolated projects funded by Western countries. Nevertheless, the governments of these States unanimously declare their interest in the development of "green" technologies, including biofuels.