In modern conditions of economic globalization, strengthening market relations and aggravated competition, the economic development of an enterprise directly depends on the introduction of innovations. The transition to an innovative path of development requires the enterprise to determine its readiness and assess the possibility of development and the further implementation of innovations. Modern trends in the production of conventional liquid fuels in Ukraine, in particular, analysis of the production of motor gasoline and primary oil refining in Ukraine, the share of motor gasoline produced in Ukraine in the total volume of gasoline used, the volume of bioethanol production by Ukrainian distillery factories have been analyzed in the article. An assessment of the resource production potential for the production of bioethanol in Ukraine has been carried out. Possibilities of bioethanol production in Ukraine at distilleries have been investigated. An analysis of molasses production in Ukraine and theoretically possible volumes of bioethanol production from molasses in Ukraine have been calculated. The scheme of key strategic priorities for the development of the food ethanol and bioethanol in Ukraine has been proposed. The advantages of using bioethanol in the gasoline-ethanol blends for vehicles have been noted, a SWOT analysis map for organizing the production of bioethanol at sugar beet processing plant and distilleries has been generated. The needs of Ukraine in the production of bioethanol have been calculated and, according to the results obtained, the volumes of bioethanol production have been predicted.

The energy strategy of Ukraine until 2035 forecasts that 12% of energy production will be from biomass. Currently, the share of biomass energy in the total structure of energy supplies in Ukraine is only 2%. After the Russian invasion of Ukraine, the diversification of the energy sector became extremely important. Rising fuels prices, problems with the fuel supply and the availability of agricultural biomass make biofuels an attractive alternative to fossil fuels. Ukraine has the potential to develop the production and use of all types of biofuels: solid, liquid and gaseous. Currently, the existing capacity and feedstock potential of biofuel production in Ukraine have not been fully realized. The experience of leading countries in the field of biofuel production shows that at the basis of the governments’ growing commitment to developing the biofuel sector is a desire to diversify the energy supply, create new jobs, improve energy security and reduce carbon dioxide emissions and other gases that contribute to global warming. The aim of the study is to construct the theoretical and practical principles of the implementation of the strategy for biofuel production from agrobiomass in Ukraine. We came to the conclusion that the trigger for the development of the bioenergy industry is the adoption at the state level of the strategy for the production of biofuels from agrobiomass. The implementation of the strategy for biofuel production will help to increase the production and use of biofuels that will strengthen Ukraine’s energy sector, help to stabilize fuel prices and will have a positive impact on the economic development of the country.

This study investigates the effects of repetitive injection molding on the properties of feedstock using the AISI 4140 feedstock. The properties of feedstock are evaluated from the mixing homogeneity of powder and binder, rheological properties, and dimensional accuracy of parts sintered. The feedstock after the 1st injection molding shows a better homogeneity than as-received feedstock due to re-mixing effects between the screw and barrel during the injection molding process. As the number of recycling numbers increases, the homogeneity, viscosities ad shrinkage ratio of recycled feedstocks show slight differences with those of the as-received feedstock until the 6th molding injection. However, some rheological parameters like the moldability index sharply increased up to the 4th injection but shows a tendency to decrease thereafter.

Today, ensuring energy security is becoming increasingly important. It has been proven that agricultural crops are currently the dominant feedstock for the production of biofuels and first-generation biofuels dominate both in Ukraine and around the world and can potentially pose a threat to food security. The research aims to analyze the state of food security in Ukraine in order to estimate the economic basis for the use of surplus food crops for biofuel production for substantiating the required areas for growing energy crops in the volumes that could ensure balance between the food and energy use of crops. An analysis of food security of Ukraine showed that the agricultural sector provides the population with most of the necessary food products, but it is advisable to modernize the food supply standards. It has been proven that crops that can be used for the production of first-generation biofuels in Ukraine are produced in sufficient quantities to ensure food security, and they are exported without compromising the food security of the state and export potential.
As calculated, Ukraine can use about 11–12 million hectares of arable land for growing energy crops with their subsequent processing into biofuels. It has been proven that in the future in Ukraine, it is recommended to develop the production of biofuels (biogas and solid biofuels) from crop and livestock waste, as well as organic waste from processing enterprises. This would not pose a threat to food security and would address a number of environmental issues related to waste disposal. Today, under the condition of war in Ukraine, food security and energy independence are priority issues and energy diversity, including the production and consumption of biofuels, is a top factor for further development.

Biochar has been extensively studied as a soil amendment to reduce nutrients losses. However, the comparative effectiveness of biochar adsorption capacity for ammonium (NH4-N), nitrate (NO3-N), and phosphate (PO4-P) remains unknown. In the present study, the effects of feedstock (banana stem and coconut shell) and temperature (300, 500, and 700°C) on biochar adsorption ability for NH ₄-N, NO ₃-N, and PO ₄-P were investigated and fitted by three adsorption models, viz Freundlich, Langmuir, and linear. Freundlich (R ² = 0.95–0.99) and Langmuir (R ² = 0.91–0.95) models were found suitable for adsorption of NH ₄-N. The maximum adsorption capacity (Q _m) for coconut shell biochar increased with pyrolysis temperature (Q _m = 12.8–15.5 mg g-1) and decreased for banana stem biochar (Q _m = 12.9–9.7 mg g-1). In the case of NO ₃-N adsorption, Freundlich (R ² = 0.82–0.99) and linear model (R ² = 1.00) were found suitable while Langmuir model showed much less contribution, similarly adsorption of PO ₄-P, was not supported by these three models. The minimum concentrations required for adsorption of phosphate were recorded as 36, 8, and 3 mg L ^-1 using pyrolyzed biochar at the temperatures of 300, 500, and 700°C, respectively. These results indicate that the feedstock and pyrolysis temperature, as well as aquatic nutrient concentration, were important factors for the adsorption of inorganic nitrogen and phosphorus.

Mortar feedstock is extruded to form bead and it is selectively placed line by line in the material extrusion additive manufacturing. With respects to part building process healthiness, load-supporting ability of overlaid beads is emphasized as buildability. Buildability is primarily dependent on thixotropic properties of feedstock and vertical overlapping schedule. In the present study, water-to-binder (w/b) ratio was chosen as material aspect to assess buildability. Uneven bead shape evolution and premature failure were highlighted owing to low yield stress of high w/b ratio feedstock. Feedstock with optimum w/b ratio showed good buildability even at the interval time of 19 sec.