Перегляд за Автор "Buliy, Yuri"

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A concentration of organic compounds of alcoholic distillate under bioethanol production
(2013) Ivanov, Sergey; Shiyan, Peter; Buliy, Yuri; Kuts, Anatoly
Cyclic rectification technology in alcohol production
(2019) Buliy, Yuri; Shiyan, Peter; Kuts, Anatoly; Melnyk, Iryna
Alternate changing of the steaming periods and liquid overflow allows to intensify mass transfer between liquid and steam and to reduce the specific consumption of heating steam in the process of separation of multicomponent mixtures. The authors propose a technology for rectification, which involves the cyclic motion of the liquid without interrupting of the supply of heating steam and the construction of a rectification column for its implementation. The purpose of the work was to research the effectiveness of the proposed technology in the process of rectification of alcohol-containing fractions and to establish the specific flow rate of steam in the impurity concentration column. The investigations were carried out in the production conditions of the Chudniv branch of SE “Zhytomyr liquor producer ”. To ensure a cyclic mode, the column was equipped with movable liquid transfer devices connected to actuating mechanismes, which acted according to the controller program, and perforated (scale-shaped) trays. The primary task was to determine the hydrodynamic mode of operation of the contact devices - the lower and upper the critical vapor velocity of at which the liquid is retained on the plates and there is its entrainment. It is established that the vapor velocity in the free section of the column can reach 1.2 m/s or more, and in the openings of the scales must exceed the first critical velocity of 6.5-7.5 m/s. The weeping of the tray occurs at the vapor velocity in the holes of 1.5-1 m/s. It is experimentally proved that in the process of rectification of alcohol-containing fractions, the main impurities are removed completely, the degree of extraction of higher fusel alcohols is increased by 38%, methanol - by 15.6%, the multiplicity of concentration of the main impurities is increased by 25%, the higher alcohols - by 40%, methanol – by 34%, acrolein – by 36%. The costs of heating steam are reduced by 30% compared to typical installations and do not exceed 13 kg / dal of absolute alcohol introduced with feed. Exempted from the key impurities the bottom liquid of the impurity concentration column should be used for hydroselection in the purifying column.
Distillation of alcoholic distillate in controlled cycles mode
(2016) Buliy, Yuri; Shiyan, Peter; Kuts, Anatoly
Authors have proposed an innovative technology of alcoholic distillate distillation. The construction of distillation column allows to manage the cycles delay and the liquid overflowing by predetermined algorithm. The design of scaly plates is offered. It allows to increase the intensity of the mass transfer process of volatile liquid and steam components. The expediency of using an innovative technology in production environment is proved. Experimental column with a diameter of 650 mm was equipped with 30 scaly plates with distance of 400 mm and movable valves mounted on rods connected with the cylinders DNT 63-50-PPV-A FESTO. Rods was set in motion in accordance with the controller program. Were used applied contact devices with coaxial arrangement of the arched type scales, with the help of which the principle of gas-liquid jets collision was realized. Founded, that using of the proposed technology allows to optimize the process of alcohol distillation of alcoholic distillate by reducing the specific consumption of heating steam by 35 % compared to a typical distillation columns and the increasing of ethanol concentration in the distillate by 28...30 % with the normative losses of alcohol with stillage. If you increase the interval delay of the mash on the plates of the column more than 12 sec. the specific consumption of heating steam and the alcohol concentration in the distillate is rising insignificantly. This causes the decreasing of column liquid throughput. Proposed design of the contact devices allows to exclude the unidirectionality of the fluid flow, the possibility of stagnant zones formation on the steps of the phase contact, the sticking of alcoholic distillate suspended particles on the surface of the plates and allows to increase the intensity of the mass transfer process of liquid and steam volatile components and extend the lifetime of distillation column without its service stop.
Energy-saving rectification technology with controlled mass exchange cycles between liquid and vapor
(2021) Buliy, Yuri; Kuts, Anatoly; Forsyuk, Andriy; Chumachenko, Sergii
Purpose of the article: the definition of the hydrodynamic mode of operation of barbotage perforated plates, of the efficiency of the technology of cyclic rectification in the mass-exchange columns equipped with barbotage perforated plates with variable free cross-sectionin and determining the consumption of heating steam in the rectificational and epyuratin columns. Research methods - analytical, chemical, physico-chemical with the use of instruments and research methods used in the production of rectified ethyl alcohol. Fluid consumption was controlled with the help of flowmeter RM, air velocity in the free section of the column - anemometer MS-13, in the holes of the plates - by calculation method. The concentration of volatile impurities of alcohol was determined on a gas chromatograph with a column HP FFAP 50 m × 0.32 m. Analysis of research samples was performed according to the State Standard of Ukraine 4222:2003 "Vodka, ethyl alcohol and water-alcohol solutions. Gas chromatographic method for determination of microcomponents content". An energy-saving technology of cyclic rectification with a continuous supply of heating steam and liquid to a mass-exchange column apparatus equipped with flake plates is proposed. The innovative method allows to prolong the time of contact of steam and liquid on plates up to 40-60 s and to reduce the time of overflow up to 1-1,7 s. In order to implement the technology, a rectification column design was proposed, equipped with flake plates with variable free cross-section.
From experience of using mechatronics subsystems in rectification technology
(2016) Buliy, Yuri; Shiyan, Peter; Kuts, Anatoly
Authors suggest the energy saving technology of the rectification with controllable cycles of delay and overflowing of liquid without interrupting of steam and liquid flows supply in the column due to additionally installed valves on the moving rods along the entire height of the column connected with the driving mechanisms, the action of which is carried out according to the predetermined algorithm.Using of mechatronics subsystems allows to implement full (single) or separated (fractional) liquid overflowing on the plates of the distillation column under conditions of cyclic mode. Technical solution allows to extend the interval of liquid and steam contact.
Improving the efficiency of mass-exchange between liquid and steam in rectification columns of cyclic action
(2021) Buliy, Yuri; Kuts, Anatoly; Yuryk, Ivan; Forsyuk, Andriy
The purpose of the work was to determine the optimal time of residence of the liquid on the plates, the grade of extraction and concentration ratio of volatile impurities of alcohol and the specific consumption of heating steam in rectification columns of cyclic action. The studies were carried out in a rectification column, equipped with flaky plates with a variable free cross-section. Concentration of alcohol volatile impurities was determined by chromatographic method, the grade of their extraction and concentration ratio – by calculation method, other indicators – by commonly known methods. The maximum extraction of volatile impurities was being achieved in a rectification column, equipped with flaky plates containing turnaround sections connected to drive mechanisms, the action of which is occurred according to a given algorithm. The optimal parameters of operating the column were: vapor velocity in the orifices of the flakes during the period of liquid retention on the plates 12-14 m/s; during liquid pouring 1-1.5 m/s; time of residence of the liquid on the plates 40 s, pouring time 1.7 s; pressure in the lower part of the column 12 kPa; the concentration of ethyl alcohol in the still liquid 3-4% vol. In order to provide the cycles, the free sectional area of the plates must change instantaneously from 5.5 to 51.7%. This technical solution allows to provide complete disposal of ethers, methyl acetate and isopropyl alcohol, to increase the grade of extraction of higher alcohols of sivush oil and methanol by 38%, the concentration ratio of aldehydes by 25%, higher alcohols by 38%, methanol by 37%, and to reduce specific consumption of heating steam by 40% compared to a typical column operating in stationary mode.
Rectification of bioethanol in guided cycles mode
(2013) Ivanov, Sergey; Shiyan, Peter; Buliy, Yuri; Kuts, Anatoly
Resource- and energy-saving methods of joint processing of by-products and intermediates in alcohol production
(2022) Buliy, Yuri; Kuts, Anatoly; Forsyuk, Andriy
Introduction. The aim of the work was to study and substantiate the effectiveness of energy-saving methods for the joint processing of alcohol-containing fractions in a cyclic action column, to increase the degree of alcohol purification from volatile impurities. Materials and methods. The studys was carried out in a typical impurity concentration column and a experimental cyclic action column. The liquid flow rate was monitored using constant differential pressure flowmeters, the concentration of ethyl alcohol and volatile impurities was determined by areometric and chromatographic methods, the degree of impurity emission and the multiplicity of their concentrating were determined by the calculation method. Results and discussion. The use of the methods proposed by the authors makes it possible to carry out joint processing of by-products and intermediate products of alcohol production (head and fusel fractions) in a cyclic action rectification column equipped with scaly plates with a variable free cross-section, to obtain high-quality rectified alcohol, to increase its yield by 3.8-4.0% from one tonne of notional starch or by 10.8% compared to the known method and to reduce specific vapor consumption by 40% (from 20 to 12 kg/dal of anhydrous alcohol introduced to the feed plate). Extending the contact time of steam and liquid on the column plates to 40 sec allows for complete emission of esters, increasing the degree of aldehyde recovery by 25% and the higher alcohols of fusel oil and methanol by 40%. The proposed technical solutions and selected technological modes make it possible to increase the efficiency of separation of the alcohol-containing mixture in the decanter, increase the multiplicity of concentrating of aldehydes and esters by 26%, higher fusel oil alcohols by 40%, methanol by 37%, reduce the loss of ethyl alcohol with the impurity concentrate, the amount of alcohol-containing waste, the metal consumption of technological equipment and the cost of rectified alcohol. Conclusion. The proposed methods allow the maximum purification of ethyl alcohol from head and intermediate impurities in a cyclic action rectification column, to obtain high-quality rectified alcohol, to reduce energy consumption and loss of alcohol with waste. Вступ. Метою роботи було дослідження і обґрунтування ефективності енергозберігаючих способів сумісної переробки спиртовмісних фракцій в колоні циклічної дії, підвищення ступеню очистки спирту від летких домішок. Maтеріали та методи. Дослідження проводили в типовій розгінній колоні і колоні циклічної дії. Витрати рідини контролювали за допомогою витратомірів постійного перепаду тиску, концентрацію етилового спирту і летких домішок визначали ареометричним і хроматографічним методами, ступінь вилучення домішок і кратність їх концентрування – розрахунковим методом. Результати та обговорення. Використання запропонованих авторами способів дозволяє здійснювати сумісну переробку побічних продуктів і напівпродуктів спиртового виробництва (головної та сивушних фракцій) в розгінній колоні циклічної дії, оснащеної лускоподібними тарілками із змінним вільним перерізом, отримати високоякісний ректифікований спирт, збільшити його вихід на 3,8-4,0 % із однієї тони умовного крохмалю або на 10,8 % в порівнянні з відомим способом і зменшити питому витрату пари на 40 % (від 20 до 12 кг/дал безводного спирту, введеного на тарілку живлення). Подовження часу контакту пари і рідини на тарілках колони до 40 с дозволяє в повній мірі видаляти естери, збільшити ступінь вилучення альдегідів на 25 %, а вищих спиртів сивушного масла і метанолу на 40 %. Запропоновані технічні рішення і обрані технологічні режими дають можливість підвищити ефективність розділення спиртовмісної суміші в декантаторі, збільшити кратність концентрування альдегідів та естерів на 26 %, вищих спиртів сивушного масла на 40 %, метанолу на 37 %, зменшити втрати етилового спирту з концентратом домішок, кількість спиртовмісних відходів, металоємність технологічного обладнання і собівартість ректифікованого спирту. Висновки. Запропоновані способи дозволяють максимально очищати етиловий спирт від головних і проміжних домішок в колоні циклічної дії, отримати високоякісний спирт, зменшити енерговитрати і втрати спирту з відходами.
Technology of lager and dark beers with chicory roots
(2024) Buliy, Yuri; Mukoid, Roman; Parkhomenko, Anastasia; Kuts, Anatoly
Chicory root (Cichorium intybus L.) contains valuable components such as inulin, inulides, bitter substances, pectin, and fibers and is a promising non-traditional raw materia The technology for light beer production was proposed, according to which light malt and dried crushed chicory roots taken in the amount of 4% of malt are used as raw materials, and at the stage of mashing the enzyme preparation inulinase with activity of 14 units/g was introduced into the mixture. For the hydrolysis of inulin at the mashing stage, an inulase pause was provided at a temperature of 55–56 °C for 20–30 minutes. The method allows increasing the content of reducing substances in the wort by 1.6%, the apparent and actual fermentation degree by 3.9%, the content of alcohol and carbon dioxide in the beer by 3.2 and 10%, respectively. The finished beer had increased foam resistance and higher foam height, while the introduction of chicory did not impart excessive and extraneous bitterness. The innovative technology of dark beer provides mixing of aqueous extract of roasted chicory with malt wort cooled to the temperature of 85–90 °С. It was found that the optimal mode of the extraction process was the temperature 85–90 °С, hydromodule 1:6, and duration 90 min. Beer with chicory content of 3% was the best in terms of physical, chemical, and sensory properties. The improved method allows to increase the content of reducing substances in wort by 1.5%, apparent and actual fermentation degree by 2.2 and 3%, respectively, to increase the content of alcohol in beer by 2.3%, and carbon dioxide by 3.2%. It was proved that partial replacement of malt by chicory allows to reduce consumption of bitter hops for light beers by 20% (from 14.8 to 12.0 g/dal) and for dark beers by 10% (from 10.3 to 9.3 g/dal).