Перегляд за Автор "Bondar, Nikolai"

Зараз показуємо 1 - 18 з 18

Absorption anisotropy studies of polymethine dyes
(2004) Lepkowicz, R.; Przhonska, Olga; Stryland, E.; Slominsky, Yu.; Kachkovski, A.; Mayboroda, Elena; Bondar, Nikolai
The determination of the spectral position of the excited states and orientation of the transition dipole moments of polymethine molecules is experimentally measured using two methods: the steady-state fluorescence anisotropy method, and a two-color polar¬ization-resolved pump-probe method. This novel use of the pump-probe method is described in detail and a comparison to the flu¬orescence method is given. Quantum-chemical modeling on the effects of the bridge structure in the polymethine chromophore on the linear absorption spectrum is also discussed.
Advantages of ethanol production from starch-containing raw materials using poliheksamethylene-guanidine (PHMG) salts
(2013) Bondar, Nikolai; Shiyan, Peter; Kuts, Anatoly
The expediency of using salts polyhexamethyleneguanidine (PHMG) as antyseptuyuchoho drug "Polidez" in the production of alcohol from starch raw materials. In a production environment studied its impact on the microbiological and biochemical processes, quality intermediates and alcohol and confirmed the efficiency of the drug "Polidez" kontaminuyuchoyi to inhibit the development of microflora.
An improved method for determining the mass fraction of calcium carbonate in the carbonate bedrock
(2021) Kos, Tatiana; Kuznietsova, Inha; Sheiko, Tamila; Khomichak, Liubomyr; Kambulova, Yuliia; Bal-Prylypko, Larysa; Vasyliv, Volodymyr; Nikolaenko, Mykola; Bondar, Nikolai; Babich, Irina
In the article it is offered to enter in the technological audit of the lime department of sugar factory the adjusted technique of the definition of the maintenance of calcium carbonate in carbonate breed. For this purpose, a complete chemical analysis of limestone was performed, which includes determination of moisture content, impurities insoluble in hydrochloric acid, the amount of one and a half oxides of aluminum and iron, calcium carbonate (advanced method), and magnesium carbonate, calcium sulfate, alkali metal oxides, potassium, and sodium. The obtained experimental data are summarized in one table and the material balance of all components of carbonate bedrock is summarized. The proposed method made it possible to obtain objective data on the component composition of the carbonate material. This, in turn, avoids many technological problems, namely to reduce the formation of melts in the lime kiln, improve the filtration of juices, increase the ability of lime to chemically interact with water, reduce the volume of water on the juicer etc. Thus, the use of the recommended method for determining calcium carbonate (CaCO3), as part of the technological audit, will allow early adjustment of the process, which will give maximum energy and resource savings, as well as increase the level of environmental friendliness of the enterprise.
Aspects of ethanol manufacture. Different purpose – different technological and economic solutions
(2022) Babich, Irina; Boiko, Petro; Bondar, Nikolai; Kuts, Anatoly
The article analyzes the reasons that led to the almost catastrophic situation in the ethanol industry of the country. The existing structure of consumption of ethanol in the domestic market, when the lion's share of ethanol is used to produce alcoholic beverages, together with the actual monopolization of pricing policies, have led to the fact that spirits can produce significantly more volumes of ethanol than the market needs, while exports make high ethanol prices impossible. When considering the effectiveness of the introduction of new technological and technical solutions, almost never paid attention to their impact on the cost of finished products. So, domestic alcoholic beverages are capable of producing high quality rectified ethanol, but the need for it both within the country and in the world is limited. The main volumes of alcohol sales on world markets are formed at the expense of bioethanol and technical ethanol (ethanol for technical needs). At the same time, prices for them are formed taking into account competition with products of the same purpose, offered by producers of other branches of the economy. Therefore, the development of the ethanol industry is possible only by changing the main directions of its use in the production of beverages for technical and transport needs and taking into account the economic results of the implementation of technological and technical solutions.
Biomass gasification in the bioethanol production
(2018) Boiko, Petro; Bondar, Nikolai; Kuts, Anatoly
Монография содержит научные исследования авторов в области техники и технологий. Может быть полезна для инженеров, руководителей и других работников предприятий и организаций, а также преподавателей, соискателей, аспирантов, магистрантов и студентов высших учебных заведений. The monograph contains the scientific research of the authors in the field of engineering and technology. It can be useful for engineers, managers and other employees of enterprises and organizations, as well as teachers, applicants, graduate students, undergraduates and students of higher educational institutions.
Dehydration to bioethanol (fuel ethanol)
(2017) Boiko, Petro; Bondar, Nikolai; Kuts, Anatoly
У цій статті ми описуємо технологію зневоднення біоетанолу (палива етанол). In this artical we describe the technology of degydration of bioethanol (fuel ethanol).
Distillation of ethanol in the bioethanol production
(2017) Boiko, Petro; Bondar, Nikolai; Kuts, Anatoly
В работе рассматриваются технологические аспекти выделения этилового спирта из бражки при производстве топливного спирта. The paper considers technological aspects extraction of alcohol from mash in the production of fuel alcohol.
Features of biodiesel production from waste oils and technical animal fats
(2018) Mushtruk, Mikhailo; Vasyliv, Volodymyr; Mukoid, Roman; Boiko, Petro; Bondar, Nikolai
Waste cooking oil has always been an environment problem in food factories. Converting the feedstock oil into biodiesel will reduce this problem. This project will not only save environment but also cost.
Improving the method of determin-ing the mass fraction of magnesium carbonate and the study of the chemical composition of carbonate rocks for the effective conduct of the technological process of sugar production
(2021) Kos, Tatiana; Kuznietsova, Inha; Sheiko, Tamila; Khomichak, Liubomyr; Bal-Prylypko, Larysa; Vasyliv, Volodymyr; Gudzenko, Maxim; Nikolaenko, Mykola; Bondar, Nikolai; Haidai, Irina
The article considers an improved method for determining the content of magnesium carbonate in the carbonate rock. An adjusted method for determining the content of magnesium carbonate was included in the complete establishment of chemical analysis of limestone, which includes the determination of moisture, impurities insoluble in hydrochloric acid, the amount of one and a half oxides of aluminum and iron, calcium carbonate and magnesium carbonate (advanced method), calcium sulfate, alkali metal oxides of potassium and sodium. The obtained experimental data were entered into a single table and summed up the material balance of all components of the carbonate rock. As a result, it was found that this technique includes the following criteria: it is the most accurate, most accessible, and cheap. The use of adjusted methods for determining the content of calcium and magnesium carbonate in limestone will make it possible to establish the objective chemical composition of the carbonate rock and avoid several technological problems. Namely, the excess of uncontrolled magnesium carbonate contributes to the formation of the liquid phase, which in turn reduces the concentration of chemically active lime and promotes the formation of melts in the lime kiln, deteriorating filtration rates, clogging the evaporating station, and so on. Therefore, having information about the real component composition of limestone, the technologist will be able to adjust the technological process in advance, which will lead to the preservation of natural resources while the quality of finished products will not decrease.
Innovative technologies of bioconvertion of renewable raw materials in etanol
(2022) Babich, Irina; Boiko, Petro; Bondar, Nikolai; Kuts, Anatoly
У статті розглядається інноваційна технологія біоконверсії відновлюваної сировини в етанол. The article discusses an innovative technology for the bioconversion of reducible raw materials into ethanol.
Milling of graine for ethanol production
(2019) Boiko, Petro; Bondar, Nikolai; Kuts, Anatoly; Bobel (Zinchenko), Inna
Монография содержит научные исследования авторов в области техники, информатики, архитектуры, медицины, сельского хозяйства. Может быть полезна для руководителей и других работников предприятий и организаций, а также преподавателей, соискателей, аспирантов, магистрантов и студентов высших учебных заведений. The monograph contains the scientific research of the authors in the field of technology, computer science, architecture, medicine, agriculture. It can be useful for managers and other employees of enterprises and organizations, as well as teachers, applicants, graduate students, undergraduates and students of higher educational institutions.
Selection of the complex of enzyme preparation for the hydrolysis of the constituents of grain at the fermentation of the wort of high
(2018) Mudrak, Tatiana; Kuts, Anatoly; Kovalchuk, Svitlana; Kyrylenko, Roman; Bondar, Nikolai
In this work we have selected the optimal complex of enzyme preparations for hydrolysis of constituents of grain raw materials at fermentation of wort of high concentrations. In the selection of enzyme systems, their effect on the technical and chemical parameters of mature broods during fermentation of wort is investigated. For research, corn starch of 69.0% was used. Based on experimental studies, it was found that the use of a complex of enzyme preparations - amylolytic Amylex 4T, saccharifying - Diazim TGA, proteolytic (Alfalase AFP), cytolytic (Laminex 750) and complex complex AF β-glucanase and xylanase XL combinations of their concentrations contributed to the intensification of the fermentation process of the wort and increase the accumulation of the target product - ethanol by 0.8-1.4%, depending on the concentration of the wort. The highest amount of ethanol was accumulated at the maximum dosage of additional enzyme preparations.
Studying the processing of food dye from beet juice
(2019) Sheiko, Tamila; Tkachenko, Serhii; Mushtruk, Mikhailo; Vasyliv, Volodymyr; Deviatko, Olena; Mukoid, Roman; Bilko, Marina; Bondar, Nikolai
The manuscript describes a new method of red beet processing and the technology of manufacturing food colorant from the juice concentrate, which is natural, safe and useful analogue to existing expensive offers on the market of similar goods that have chemical origin not useful for regular consumption. Nowadays in order to give to food products a colour, close to natural coloring of fruits and vegetables, expensive synthetic dyes are used, which might have cancer-inducing effect when being accumulated by human organism. Therefore improving the technology for producing food grade dye from red beet juice is remarkably important task. Currently, there is a problem for vegetable processors – pectin substances complicate the process, like the illumination of juice and negatively affect its storage capacity. The article below reveals and substantiates the necessity of using a natural carbon-containing adsorbent shungite for the purification of beet juice from pectin substances. On the basis of the study, the authors suggest a more cost-effective way of producing a food dye from juice concentrate, which allows avoiding usage of expensive enzyme processing additives.
Technical ethanol. Technological and economic features of manufacture
(2020) Boiko, Petro; Bondar, Nikolai
У статті розглядаються питання виробництва технічного етанолу із зерна як типового продукту сільського господарства України з точки зору поєднання технологічних заходів та визначення економічної доцільності збуту продукції на різних ринках. Уточнюється, що специфікою такого впровадження є конкуренція технічного етанолу та продуктів нафтогазоорганічного синтезу. Розглянуто ряд заходів, які при незначних величинах їх реалізації забезпечують зниження собівартості технічної переробки зерна на технічний етиловий спирт. The article deals with the issues of producing technical ethanol from the grain as a typical Ukrainian agricul ture product in terms of the combination of technological measures and the determination of the economic feasi bility of marketing products in different markets. It is specified that the specifics of such implementation are com petition of technical ethanol and products of oil and gas-organic synthesis. A number of measures are considered, which, at insignificant values of their implementation, provide a reduction in the cost of technical processing of grain into technical ethanol.
The biorefinery of second generation - new resourses, technologies and ideas
(2020) Boiko, Petro; Bondar, Nikolai; Kuts, Anatoly
У цій статті ми описуємо перспективи виробництва біоетанолу НПЗ ІІ генерації, в тому числі з целюлози як сировини.In this artical we describe the perspectives of bioethanol production by the refinery of second generation, including from cellulose as a raw material.
The technology of the second generation of bioethanol
(2018) Boiko, Petro; Bondar, Nikolai; Kuts, Anatoly
У цій статті ми описуємо практичне виконання другої та заключної частини технологія газифікації біомаси у виробництві біоетанолу (паливного етанолу). Ця частина є перетворення синтез-газу в етанол за допомогою мікроорганізмів. Умови життя мікроорганізмів залежить від багатьох умов: температури, pH, впливу інгібіторів та/або активаторів. Це все умови дають змогу реалізувати промислове виробництво біоетанолу з целюлози. In this article we describe the practilal realazing of the second and final part of the technology of biomass gasification in the bioethanol (fuel ethanol) production. This part is the conversion of syngas to ethanol using the microorganisms. The living conditions of microorganisms depends from meny conditions: temperature, pH, ingibitors and/or activators influence. This all conditions give as realize the industrial volume production of bioethanol from cellulose.
The use of poliheksamethyleneguanidine (phmg) salts in alcohol production from starch-containing raw materials
(2021) Boiko, Petro; Bondar, Nikolai; Kuts, Anatoly
Доцільність використання солей полігексаметиленгуанідину (ПГМГ) як антисептика при виробництві спирту з крохмалевмісної сировини. У виробничих умовах досліджено його вплив на перебіг мікробіологічних і біохімічних процесів, якість напівфабрикатів і спирту та підтверджено ефективність препарату «ПГМГ» для пригнічення росту контамінативної мікрофлори. Expediency of the use of poliheksamethyleneguanidine (PHMG) salts is reasonable as the antiseptic in alcohol production from starch-containing raw materials. In working environment its influence on the course of microbiological and biochemical processes, quality of semiproducts and alcohol was investigated and efficiency of the preparation «PHMG» for inhibition of contaminating microflora growth was confirmed.
The use of poliheksametyleneguanidine (PHMG) salts in alcohol production from starch containing raw materials
(2012) Bondar, Nikolai; Shiyan, Peter; Mudrak, Tatiana; Kyrylenko, Roman
Expediency of the use of poliheksamethyleneguanidine (PHMG) salts is reasonable as the antiseptic preparation «Polidez» in alcohol production from starch-containing raw materials. In working environment its influence on the course of microbiological and biochemical processes, quality of semiproducts and alcohol was investigated and efficiency of the preparation «Polidez» for inhibition of contaminating microflora growth was confirmed.