PROBLEMS AND PROSPECTS OF BIOLFUEL MARKET DEVELOPMENT IN UKRAINE

2017 ◽  
Author(s):  
Alina Proshchalykina ◽  
◽  
Victoria Denisenko ◽  
Anton Proshchalykin ◽  
◽  
...  
Keyword(s):  
Raw Materials ◽  
Agricultural Waste ◽  
Motor Fuel ◽  
Market Development ◽  
Technical Equipment ◽  
Waste Biomass ◽  
Investment Projects ◽  
Strategic Direction ◽  
Business Entities ◽  
Sufficient Resource

The features of the biofuel market development in Ukraine are studied. It was determined that Ukraine has sufficient resource potential for the production of such main types of biofuels as: rare types of motor fuel (biodiesel and bioethanol), biogas from the processing of agricultural waste and other organic waste, biomass for heat production. When choosing a location for production facilities, it is necessary to focus on the availability of raw materials. The demand for biofuels, both in Ukraine and in the world, exceeds the supply. Therefore, the market is characterized by positive dynamics. The main obstacles to the development of the market are the instability of supply and sales, underdeveloped infrastructure, insufficient investment, and problems with technical equipment. Analyzing the opportunities and threats to the development of bioenergy in Ukraine, it was determined that under the conditions of state support, the benefits of developing biofuels will exceed the possible risks. It is important to create a motivational environment for business entities, to create conditions for predicting the payback periods of investment projects in this area. Prospects for the development of the biofuel market associated with the formation of bioclusters, which will allow systematic interaction between suppliers, producers, sellers and consumers of biofuels. Clusters allow you to obtain synergies from the sharing of resources, production base and infrastructure. The development of the infrastructure of the market under consideration should take place with government assistance and be considered as a strategic direction for enhancing the country's energy security. The development of electronic exchanges for trading biofuel and resources for its production is promising. In this way, the problem of stability in the sale of finished products can be overcome.

scholarly journals ECONOMIC EFFICIENCY OF USE OF WASTE-FREE TECHNOLOGIES IN THE AGRO-INDUSTRIAL COMPLEX

2020 ◽  
pp. 186-206
Author(s):  
Valeriia VOVK
Keyword(s):  
Energy Balance ◽  
Biogas Production ◽  
Raw Materials ◽  
Agricultural Waste ◽  
Main Idea ◽  
Economic Benefits ◽  
Animal Waste ◽  
Industrial Complex ◽  
Waste Biomass ◽  
Agricultural Enterprises

The article explores the economic essence of the concept of “waste-free technologies” and it was determined that the main idea of waste-free production is the conversion of residues of secondary raw materials and waste obtained in the production process into finished products, which is able to bring economic benefits to the enterprise. Has been analyzed the dynamics of the volume of generated and utilized agricultural waste in Ukraine in 2010-2019. And it was determined that no more than 30% of waste is disposed of, the share of which has been rapidly decreasing in recent years. It was noted that the agro-industrial complex is one of the material-intensive and high-waste sectors of the economy, which accounts for a significant part of greenhouse gas emissions - more than 12%. It is concluded that the introduction of waste-free production technologies in agricultural enterprises of Ukraine will not only reduce the amount of waste generated and their impact on the environment, but it is also a source of income by replenishing the energy balance of enterprises. Attention is paid to the most promising direction for the introduction of waste-free technologies at agricultural enterprises - the production of biogas from organic waste (biomass). It is noted that agricultural waste, mainly animal waste, such as manure, chicken droppings, can be an additional source of replenishing the energy balance of agricultural enterprises and ensuring the energy security of the region. Have been analyzed the volumes of animal waste generation in Ukraine and the potential for biogas production from manure in Ukraine in 2020. A sample of the 10 largest biogas plants in Ukraine was carried out and the further development of the bioenergy sector in 2050 in terms of biogas production was predicted. 6 main environmental effects from the introduction of biogas complexes in Ukraine were identified. The main directions of the European Green Deal are characterized and the key areas of harmonization of domestic legislation on waste management are given with European ones.

scholarly journals Pyrolysis of agricultural waste biomass towards production of gas fuel and high-quality char: Experimental and numerical investigations

Fuel ◽  
2021 ◽  
Vol 296 ◽  
pp. 120611
Author(s):  
Agata Mlonka-Mędrala ◽  
Panagiotis Evangelopoulos ◽  
Małgorzata Sieradzka ◽  
Monika Zajemska ◽  
Aneta Magdziarz
Keyword(s):  
Agricultural Waste ◽  
Waste Biomass ◽  
High Quality ◽  
Numerical Investigations ◽  
Gas Fuel

Purification of dye-contaminated ethanol-water mixture using magnetic cellulose powders derived from agricultural waste biomass

2021 ◽  
Vol 258 ◽  
pp. 117690
Author(s):  
Sijie Zhou ◽  
Liangjun Xia ◽  
Zhuan Fu ◽  
Chunhua Zhang ◽  
Xiangyu Duan ◽  
...  
Keyword(s):  
Agricultural Waste ◽  
Water Mixture ◽  
Waste Biomass

scholarly journals Study of the Incorporation of Biomass Bottom Ash as a Filler for Discontinuous Grading Bituminous Mixtures with Bitumen Emulsion

2021 ◽  
Vol 11 (8) ◽  
pp. 3334
Author(s):  
Jorge Suárez-Macías ◽  
Juan María Terrones-Saeta ◽  
Francisco Javier Iglesias-Godino ◽  
Francisco Antonio Corpas-Iglesias
Keyword(s):  
Raw Materials ◽  
Bottom Ash ◽  
Chemical Properties ◽  
Physical And Mechanical Properties ◽  
Waste Biomass ◽  
Bituminous Mixtures ◽  
Bitumen Emulsion ◽  
Main Disadvantage ◽  
Physical And Chemical ◽  
And Chemical Properties

Energy consumption, because of population development, is progressively increasing. For this reason, new sources of energy are being developed, such as that produced from the combustion of biomass. However, this type of renewable energy has one main disadvantage, the production of waste. Biomass bottom ash is a residue of this industry that currently has not much use. For this reason, this research evaluates its use as a filler in bituminous mixtures, since this sector also has a significant impact on the environment, as it requires large quantities of raw materials. With this objective, first, the physical and chemical properties of biomass bottom ashes were evaluated, verifying their characteristics for their use as filler. Subsequently, bituminous mixtures were conformed with biomass bottom ash as filler, and their physical and mechanical properties were analyzed through particle loss and Marshall tests. The results of these tests were compared with those obtained with the same type of mixture but with conventional and ophite aggregates. This study confirmed that biomass bottom ash was viable for use as a filler, creating mixtures with a higher percentage of bitumen, better mechanical behavior, and similar physical properties. In short, more sustainable material for roads was obtained with waste currently condemned to landfill.

Agricultural waste as a source of innovative and compostable composite biopolymers for food packaging: a scientific review

2021 ◽  
Author(s):  
Anna Ronzano ◽  
Roberta Stefanini ◽  
Giulia Borghesi ◽  
Giuseppe Vignali
Keyword(s):  
Food Packaging ◽  
Agricultural Land ◽  
Raw Materials ◽  
Agricultural Waste ◽  
Natural Fibers ◽  
Scientific Review ◽  
Food And Agriculture ◽  
Food And Agriculture Organization ◽  
Regional Project ◽  
Materials Used

"The recovery of agriculture waste is one of the challenges of 2030 Agenda. Food and Agriculture Organization states that 30 % of the world’s agricultural land is used to produce food that is later lost or wasted, and the global carbon footprint corresponds to 7% of total greenhouse gases emissions. Alternatively, natural fibers contained in food and agricultural waste could be a valuable feedstock to reinforce composite biopolymers contributing to increase mechanical properties. In addition, the use of biopolymers matrix could contribute significantly to reduce the environmental footprint of the biobased compounds. Based on these premises, a regional project in Emilia-Romagna, aims to enhance agricultural waste to produce food packaging materials which in turn would contribute to the reduction of green raw materials used. This article reviews the state of art of composite biopolymers added with fillers extracted by food and agricultural waste, analyzing the literature published on scientific databases such as Scopus. The characteristics, advantages and drawbacks of each innovative sustainable material will be studied, trying to compare their various properties. The results of the work could guide companies in the choice of eco-sustainable packaging and lay the foundations for the development of the mentioned regional project."

PROSPECTS FOR OBTAINING GAS MOTOR FUEL FROM BIOGAS OF ANAEROBIC DIGESTION OF AGRICULTURAL WASTE

2021 ◽  
Vol 3 (144) ◽  
pp. 22-31
Author(s):  
Viktor S. Grigor’yev ◽  
◽  
Il’ya V. Romanov
Keyword(s):  
Anaerobic Digestion ◽  
Gas Hydrates ◽  
Process Model ◽  
Organic Waste ◽  
Agricultural Waste ◽  
Motor Fuel ◽  
Hydrate Formation ◽  
Research Purpose ◽  
Industrial Complex ◽  
Mixed Gas

The ability of gas hydrates to concentrate gas into a solid chelate structure and the properties of self-preservation of gas hydrates at negative temperatures allows us to consider the possibility of developing a method for the utilization of biogas, environmentally safe storage and transportation of biomethane. (Research purpose) The research purpose is in substantiation the technological possibilities of obtaining synthetic mixed gas hydrates of biogas components, their storage and transportation based on the analysis of the existing regularities of the formation of gas hydrates in time, temperature and external pressure. (Materials and methods) The article presents the accumulated results of studies of the process of obtaining artificial hydrates of natural gas and methane- containing gas mixtures at various initial static pressures and temperatures. The object of research to substantiate the parameters of artificial creation of gas hydrates is biogas obtained during anaerobic thermophilic fermentation of organic waste at an existing experimental biogas plant. Mixed feed SK-8 with a humidity of 90-92 percent was used as an organic substrate of constant composition. The composition of biogas was studied using the Optima-7 Biogas gas analyzer. (Results and discussion) The article presents a process model and a technical appearance of an installation for producing gas motor fuel from the biogas of anaerobic digestion of organic waste of the agro-industrial complex. The hydrate formation time depends on the increase in the interfacial surface and the movement of gas bubbles relative to the liquid, which can be regulated by acting on the hydrate formation zone (shock wave, electromagnetic, mechanical, chemical, temperature). (Conclusions) The research results can be used in modeling processes in two-phase media during the formation of gas hydrates and the creation of installations for their production.

Research of pneumatic conveyor for overloading of fuel pellets

2021 ◽  
pp. 88-96
Author(s):  
N. Spodyniuk ◽  
◽  
L. Horbachenko ◽  
Keyword(s):  
Key Words ◽  
Agricultural Sector ◽  
Raw Materials ◽  
Agricultural Waste ◽  
High Quality ◽  
Fuel Pellets ◽  
Energy Consuming ◽  
Loading And Unloading

The constant development of the country's agricultural sector allows the production of biofuels, such as fuel pellets, from agricultural waste - straw, corn and sunflower husks. However, the transportation of fuel pellets is quite energy consuming. The process of loading and unloading, transportation over long distances requires complex mechanized equipment. The use of a pneumatic conveyor for grain reloading will allow to provide high-quality transportation of fuel pellets. The aim of the article was to investigate the operation of the pneumatic conveyor for overloading fuel pellets, to determine the optimal indicators that affect the productivity of the pneumatic conveyor. Since fuel pellets, as raw materials, are structurally similar to cereals, a study of the pneumatic grain conveyor PTZ-25 was conducted. The dependence of the productivity of the pneumatic conveyor on the lifting height h, m and the length of the pipelines L, m was obtained. The obtained results showed that by reducing the length of the pipelines by four times and the lifting height by half, the productivity of the pneumatic conveyor will increase by 1.15 times. Key words: fuel pellets, pneumatic conveyor, productivity

scholarly journals Conversion of Waste Agriculture Biomass to Bioethanol by Recombinant Saccharomyces cerevisiae

2010 ◽  
Vol 2 (2) ◽  
pp. 351-361
Author(s):  
A. A. Saleh ◽  
S. Hamdan ◽  
N. Annaluru ◽  
S. Watanabe ◽  
M. R. Rahman ◽  
...  
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Enzyme Activity ◽  
Protein Engineering ◽  
Agricultural Waste ◽  
Xylitol Dehydrogenase ◽  
Ethanol Conversion ◽  
Waste Biomass ◽  
Wild Type ◽  
Coenzyme Specificity ◽  
Recombinant Yeasts

Agricultural waste biomass has already been transferred to bioethanol and used as energy related products, although many issues such as efficiency and productivity still to be overcome. In this study, the protein engineering was applied to generate enzymes with completely reversed coenzyme specificity and developed recombinant yeasts containing those engineered enzymes for construction of an efficient biomass-ethanol conversion system. Recombinant yeasts were constructed with the genes encoding a wild type xylose reductase (XR) and the protein engineered xylitol dehydrogenase (XDH) (with NADP) of Pichia stipitis.  These recombinant yeasts were characterized based on the enzyme activity and fermentation ability of xylose to ethanol. The protein engineered enzymes were expressed significantly in Saccharomyces cerevisiae as judged by the enzyme activity in vitro. Ethanol fermentation was measured in batch culture under anaerobic conditions. The significant enhancement was found in Y-ARS strain, in which NADP+-dependent XDH was expressed; 85% decrease of unfavorable xylitol excretion with 26% increased ethanol production, when compared with the reference strain expressing the wild-type XDH.  Keywords: Agricultural waste biomass; Protein engineering; Xylitol dehydrogenase; Xylose-fermentation; Eethanol production. © 2010 JSR Publications. ISSN: 2070-0237 (Print); 2070-0245 (Online). All rights reserved. DOI: 10.3329/jsr.v2i2.2882               J. Sci. Res. 2 (2), 351-361 (2010) 

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