Russian scientists have found a way to get eco-friendly fuel from peat and rapeseed oil
08.02.2023
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Scientists of Tomsk Polytechnic University have determined the optimal ratio of biofuel components and temperature regimes.
A method for producing eco-friendly fuel from a mixture of peat and rapeseed oil using focused sunlight was developed by scientists of Tomsk Polytechnic University (TPU). This method of biofuel production is cheaper than analogues, the press service of the university told TASS on Tuesday.
"Previously, almost no one was engaged in mixtures of peat and oil. This is due to the fact that the process of their processing is energy-intensive due to the peculiarities of the thermal decomposition of rapeseed oil, which requires very intensive heating. We proposed using the method of high-temperature thermochemical conversion to generator gas for the processing of the mixture. The conversion is carried out due to the heat received from focused sunlight. Thus, the energy spent on gasification of fuel is taken from an inexhaustible source, which significantly reduces the cost of production," Roman Egorov, a researcher at the Research School of Physics of High-Energy Processes of TPU, is quoted as saying.
Scientists have determined the optimal ratio of biofuel components, temperature conditions that ensure the most efficient gasification of the mixture, estimated the process performance and energy costs per unit mass of generator gas. It turned out that with the ratio of peat and rapeseed oil in the mixture at the level of 1:2, the conversion process becomes as effective as possible at temperatures less than 1000 degrees.
The proposed approach makes it possible to convert the initial fuel mixture into a gaseous fuel with a simple and homogeneous chemical composition. The base fuel mixture is ignited only when heated intensively, which is convenient for safe storage. And the resulting combustible gas can be used for heating or as a raw material for chemical synthesis.
Scientists plan to study the possibility of using other oils as part of peat-based blended fuels, since rapeseed oil is quite expensive. In particular, polytechnics consider used synthetic motor oils as a possible raw material.
Peat is one of the most common and relatively cheap in the extraction of combustible minerals. At the same time, its use as an industrial fuel complicates a large number of non-combustible components in the composition and high-molecular organic compounds, which partially volatilize when heated slowly. Because of this, peat has a relatively low gorenje temperature, and in the process a small amount of heat and a lot of ash is formed.
"Previously, almost no one was engaged in mixtures of peat and oil. This is due to the fact that the process of their processing is energy-intensive due to the peculiarities of the thermal decomposition of rapeseed oil, which requires very intensive heating. We proposed using the method of high-temperature thermochemical conversion to generator gas for the processing of the mixture. The conversion is carried out due to the heat received from focused sunlight. Thus, the energy spent on gasification of fuel is taken from an inexhaustible source, which significantly reduces the cost of production," Roman Egorov, a researcher at the Research School of Physics of High-Energy Processes of TPU, is quoted as saying.
Scientists have determined the optimal ratio of biofuel components, temperature conditions that ensure the most efficient gasification of the mixture, estimated the process performance and energy costs per unit mass of generator gas. It turned out that with the ratio of peat and rapeseed oil in the mixture at the level of 1:2, the conversion process becomes as effective as possible at temperatures less than 1000 degrees.
The proposed approach makes it possible to convert the initial fuel mixture into a gaseous fuel with a simple and homogeneous chemical composition. The base fuel mixture is ignited only when heated intensively, which is convenient for safe storage. And the resulting combustible gas can be used for heating or as a raw material for chemical synthesis.
Scientists plan to study the possibility of using other oils as part of peat-based blended fuels, since rapeseed oil is quite expensive. In particular, polytechnics consider used synthetic motor oils as a possible raw material.
Peat is one of the most common and relatively cheap in the extraction of combustible minerals. At the same time, its use as an industrial fuel complicates a large number of non-combustible components in the composition and high-molecular organic compounds, which partially volatilize when heated slowly. Because of this, peat has a relatively low gorenje temperature, and in the process a small amount of heat and a lot of ash is formed.
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