Chair "Processes and equipment of chemical and petroleum refineries”
The purpose of department creation in 1965 was intensive development of machine-building and chemical industry in Sumy and Sumy oblast.
The department has the fourth the highest level of accreditation (the license of Ministry of Education and Science of Ukraine ¹ 196859 âiä 26.12.1998 ð.).
The Head of the Department
Sklabinskyy Vsevolod Ivanovych
Academic degree and academic rank: Doctor of Engineering, full professor
Sphere of scientific interest:
Hydrodynamics and mass transfer in vortex flows processes, research and implementation of vortex flows devices.
Contact information:
Sumy State University
vul.Rymskogo-Korsakova, 2
40007 Sumy, Ukraine
(0542) 33-71-24
E-mail: sklabin@ukr.net
Scientific research of the department:
Processes and equipment of chemical and oil-processing industry, computer calculation and chemical equipment design.
Processes and equipment of oil-processing industry, improvement of separation technology of gas condensate, water and oil mixtures, design and implementation of high-performance inertial and filtering gas separators, drop catchers, mist extractors.
Contact devices for mass transfer processes.
Technics and technology for obtaining and using of alternative and self-regenerating power supply.
Design of rotodynamic pumps for juice, syrup, water and gas mixture, hydromixture pumping, which contain solid impurities of large size.
Design of energy-efficient processes and equipment with active aerodynamic mode for technological process intensification.
Vortex heat and mass transfer devices.
The modern computer technology of modeling and construction is widely used while designing and researching.
The Scientific Research of the Department
THE COMPLEX PROCESSING LINE FOR GRANULATED AMMONIUM NITRATE PRODUCTION
The usage of modern granulation technology allows designing complex devices for ammonium nitrate production using dilute solutions. Such complex devices have a simplified assembly unit of neutralization, which exclude solution evaporation to the condition of highly concentrated fusion and construction of expensive granulation tower.
The processing line includes the following equipment as heat exchangers, blowers, containers, compressors, pumps, gas cleaner, conveyor belt, filters.
VORTEX SPRAY MASS EXCHANGE DEVICE
VORTEX SPRAY COUNTER-CURRENT FLOW MASS EXCHANGE EQUIPMENT
Application: the processes of absorptive dehumidification of natural and associated petroleum gas, reprocessing of steady carbonic gas condensate and oil into diesel fuel and flash gasoline with the help of rectification using the engine fuel plants; heat and mass transfer processes.
Liquid atomization takes place due to the influence of high-speed gas flow on water flow. So as a result, we get superfine spraying, the drops move on a spiral path to the periphery of mass transfer chamber being counter-current to gas flow.
The counter-current vortex gas and liquid (drop) flows were used in the real construction of mass transfer device for the first time. It allowed achieving several stages of concentration change in one degree of spraying and changing the column equipment, which contains 6-10 contact elements by one device.
Specifications:
- hydrodynamical resistance of the device 2.4 kPa;
- efficiency of gas cleaning 98-99%.
VORTEX GRANULATOR
It is recommended to use in chemical and petrochemical industry, food industry, metallurgy industry and pharmaceutics.
It allows products granulation without using granulated towers, which have complicated and expensive communication system and big overall dimensions.
Such granulator design allows not only obtaining granules of required structure, but also classifying them according to their size. The basic method is granulation out of fusion, solutions, suspension. It is based on improved of motion dynamics of granules flow, which provides the increase of monodisperse of granules( they grow in vorticity layer) and homogeneity of grain-size composition of finished product.
GAS SEPARATORS OF INERTIAL AND FILTERING TYPE
Application: natural and associated petroleum gas purifying from liquid (condensate, hydrate inhibitor, water) and mechanical impurities on initial intermediate, and final stage of separation in dehumification plants, low-temperature separation, gas refinement, complex refining gas plant, compressor plant of gas-main pipeline, underground storage facility, industrial compressor plant giving additional pressure.
The design of combined gas separators are distinguished by high efficiency of gas cleaning from liquid, in wide range the alteration of efficiency and pressure have reduced hydrodynamic resistance. Separators are equipped with effective entrance assembly units, they fulfill the function of preliminary water separation and mechanical impurities entrapping, fine aerosol coagulators, and high performance centrifugal, inertial and filtering separation elements.
Specifications:
- fluid phase content of a gas at the separator inlet is not more than 200gr/m3
- hydrodynamic resistance is in the range of 0,015-0,030 ÌPà;
- effective trapping of fine-grained drops of 2R≥5 micrometers;
- entrained non-separated liquid is not more than 0,015 gr/m3.
CLASSIFYING CRYSTALLIZERS
Sphere of application: chemical and food industry.
Classifying crystallizer allow to obtain macrocrystalline mineral salts and fertilizers of homogeneous granulometric composition, the average size of granules is 0,8 – 3,0 mm. Classifying crystallizers differ from others by the fact that supersaturation is created in one part of the device and we obtain it in the other part, which has the crystal layer in pseudoliqiud state due to the ascending liquid flow.
STRUCTURED FILLINGS OF SEPARATION, HEAT AND MASS TRANSFER EQUIPMENT
Application: structured fillings are designed to install in separation, heat and mass transfer process equipment of gas and oil processing plants.
The intensification of mass transfer is caused by the presence of entrance effects as a result of frequent destruction and film refacing and its circulation in depth. The next aspect is repeated gas phase throttling according to the filling height at its expansion in width in gaps among blocks and its contraction in the ducts of the filling, resulting in phase turbulization and low-frequency pulsation modulation. Uniformity of direction control according to the height increases the performance of a contact device. The suggested high-performance fillings have low hydrodynamic resistance, high productivity and efficiency, minimal losses of liquid and gas, significant independent volume, high strength, water and gas self-distibution. The fillings have a high activity factor of a column cross-section and a strong separation ability. The filling usage diminishes the overall dimensions of mass transfer device.
Specifications:
- specific surface 135-265 m2/m3;
- specific weight 270-290 kg/m3;
- independent volume, free volume 78-96%;
- hydrodynamic resistance 50-80 millimeters of water column.
THE PROCESSING TECHINIQUE OF GRANULATED ORGANIC AND ORGANIC AND MINERAL FERTILIZERS OF DURABLE ACTION
Sphere of application: agriculture (agricultural wastes processing), municipal engineering (processing of municipal drainage). The implementation of the developed technology will help to obtained granulated organic, organic and mineral fertilizers of durable action; to protect the environment from biogenic and pathogenic influence of untreated waste, which contains organic compounds; extend and/or replace the usage of mineral fertilizers, especially phosphoric and nitrogen fertilizers.
ROTATING SPRAY NOZZLE
Rotating spray nozzle is designed to distribute water on the initial filling intersection of column mass transfer devices. It can be widely used in nozzle devices for absorption, rectification, desorption, refinement, dehumidification and moistening of gases. The spray nozzle is a chamber, hang on a shaft, with ducts and slots in them to pump in the liquid. To rotate the nozzle the energy of a man is used. Due to its design, the efficiency of mass transfer process is considerably increased. Moreover, the spray withdrawal from liquid device is decreased by 10-30 times or we can even exclude this phenomenon. It is easy to produce, it doesn’t require special materials.
The usage of rotating spray nozzles in ammonium nitrate production reduced emissions of saltpeter by 4 times and ammonia by 30 times.
All scientific results of research pertaining to Processes and Equipment of Chemical and Petroleum Refinery Department are protected by patents of Ukraine and are implemented into chemical industry of Ukraine.
We are always happy to meet new people and are interested in mutually beneficial relations. We offer our scientific product and hope that it will arouse the interest of prospective partners. The Processes and Equipment of Chemical and Petroleum Refinery Department is looking forward to meeting new partners and hopes for effective cooperation
Our Address:
40007, Sumy,
(0542) 33-71-24
vul.Rymskogo-Korsakova, 2
Sumy State University
Processes and Equipment of Chemical and Petroleum Refinery Department
e-mail: pohnp@yandex.ru,
(0542)337-124, 337-073.
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