Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Yuriy Prysiazhnyi"'
Autor:
Denis Miroshnichenko, Kateryna Shmeltser, Maryna Kormer, Yevhen Soloviov, Serhiy Pyshyev, Bohdan Korchak, Mariia Shved, Yuriy Prysiazhnyi
Publikováno v:
Electrochem, Vol 5, Iss 2, Pp 258-273 (2024)
The influence of the component composition of coal batches and the final temperature of the coking process on the resistivity of coke was studied. Taking into account that the resistivity and reactivity are influenced by some common factors, such as
Externí odkaz:
https://doaj.org/article/ce28a02d9ee64eeab9c1a70e7bf0887a
Autor:
Serhiy Pyshyev, Denis Miroshnichenko, Taras Chipko, Myroslava Donchenko, Olena Bogoyavlenska, Liudmyla Lysenko, Mykhailo Miroshnychenko, Yuriy Prysiazhnyi
Publikováno v:
ChemEngineering, Vol 8, Iss 2, p 27 (2024)
It is known that there are significant deposits of lignite (brown coal) in Ukraine, particularly in categories A + B + C1. At the same time, certain technical and legal obstacles limit its use as an energy carrier. Therefore, new methods of using lig
Externí odkaz:
https://doaj.org/article/29582d89afdc4bbfb1ec1ef3a7788822
Autor:
Katarzyna Pstrowska, Volodymyr Gunka, Yuriy Prysiazhnyi, Yuriy Demchuk, Yurii Hrynchuk, Iurii Sidun, Marek Kułażyński, Michael Bratychak
Publikováno v:
Materials, Vol 15, Iss 16, p 5693 (2022)
The process of chemical modification of tar and oxidized bitumen with formalin (a 37% aqueous solution of formaldehyde) in a hermetic container was investigated and the effectiveness of the proposed process was proven. It is shown that the most effec
Externí odkaz:
https://doaj.org/article/a9ae2709bd4b4f35806760d66f80c13f
Publikováno v:
International Journal of Coal Science & Technology, Vol 6, Iss 1, Pp 63-73 (2018)
Abstract The study reviews the process of oxidative desulphurization of high-sulphur Ukrainian lignite, which was performed by coal treatment using an air or air–steam mixture. In the process, sulphur-free fuel and tar from the decomposition of coa
Externí odkaz:
https://doaj.org/article/6d99fd5c215b4026b2977e52b9c10d47
Publikováno v:
International Journal of Coal Science & Technology, Vol 5, Iss 2, Pp 213-229 (2018)
Abstract In this paper, the desulphurisation of high sulphur low-rank coal is proposed as a raw material for pulverised coal injection technology. Therefore, the influence of oxidant linear velocity and the size of the coal grain was investigated in
Externí odkaz:
https://doaj.org/article/5621e286af194f0f81188e7f746b4af9
Coumarone-indene (CIR) and coumarone-indene-carbazole resins (CICR) were obtained by ionic cooligomerization based on fractions extracted from liquid products of coal coking (gasoline fractions and coal tar). CIR and CICR are used as road bitumen mod
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2a19078f025fc7f0f78b2ad86527aa76
https://doi.org/10.21203/rs.3.rs-2644826/v1
https://doi.org/10.21203/rs.3.rs-2644826/v1
Autor:
Olena Shyshchak, Yurii Hrynchuk, Yuriy Demchuk, Yuriy Prysiazhnyi, Iurii Sidun, Michael Bratychak, Volodymyr Gunka
Publikováno v:
Chemistry & Chemical Technology. 15:443-449
The possibility of modification of BND 60/90 bitumen produced at JSC Ukrtatnafta (Kremenchuk, Ukraine) with maleic anhydride has been considered. The effect of maleic anhydride amount, process time and temperature on the operating characteristics of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6665f8c1bd20c4d86f8fe70ea62bcee1
https://doi.org/10.23939/chcht15.03.443
https://doi.org/10.23939/chcht15.03.443
Autor:
Yurii Hrynchuk, Olena Shyshchak, Iurii Sidun, Yuriy Demchuk, Volodymyr Gunka, Yuriy Prysiazhnyi, Michael Bratychak
Publikováno v:
Chemistry & Chemical Technology. 15:274-283
The possibility of petroleum residues (tar and oxidized bitumen) modification with formaldehyde (37 % aqueous solution) has been studied at the temperature of 393±3 K for 3 h in the presence of organic solvent and using hydrochloric acid as a cataly
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e7b1de2bc316879dd9bfbd906cbc5643
https://doi.org/10.23939/chcht15.02.274
https://doi.org/10.23939/chcht15.02.274
Publikováno v:
2021 IEEE 11th International Conference Nanomaterials: Applications & Properties (NAP).
some aspects of the process of obtaining coumarone-indene-carbazole resin as a modifier of road bitumens have been studied. In particular, the influence of the conditions of separation of unreacted raw materials from the polymer on the thermoplastic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::92ab348e65d85e91151646c0c3bc6a2e
https://doi.org/10.1109/nap51885.2021.9568564
https://doi.org/10.1109/nap51885.2021.9568564
Publikováno v:
Chemistry, Technology and Application of Substances. 2:97-101
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::09038964e44857ba3f01f48d2ae0ee3e
https://doi.org/10.23939/ctas2019.02.097
https://doi.org/10.23939/ctas2019.02.097