Перегляд за Автор "Ivanenko, Olena"

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    Application of ferriferous hydrosol for CO2 capture
    (КПІ ім. Ігоря Сікорського, 2023) Bychko, Ihor; Trypolskyi, Andriy; Kovbasiuk, Victoria; Ivanenko, Olena
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    Block catalytic system for neutralization of carbon monoxide based on aerated concrete
    (КПІ ім. Ігоря Сікорського, 2021) Ivanenko, Olena; Radovenchyk, Vіacheslav; Karvatskii, Аnton; Mikulionok, Іgor; Plashykhin, Serhii; Overchenko, Tetiyna; Nosachova, Yuliia; Dovholap, Serhii
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    Devising a corrosion inhibitor for steel ST37-2 in a water-oil mixture
    (PC Technology Center, 2020-04) Gomelya, Nikolai; Trus, Inna; Stepova, Olena; Kyryliuk, Oleksandr; Ivanenko, Olena; Khomenko, Anna
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    Effective solution of the problem of utilization of plant waste in the interest of ecology
    (SPC “Sci-conf.com.ua”, 2020-06) Trus, Inna; Halysh, Vita; Gomelya, Mykola; Vozna, Ivanna; Ivanenko, Olena; Krysenko, Tamara
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    Modeling the pyrolysis of high-density polyethylene using the ReaxFF force field
    (КПІ ім. Ігоря Сікорського, 2025) Teteriatnykov, Hlib; Ivanenko, Olena; Karvatskii, Anton; Tomin, Oleksii
    The pyrolysis process of high-density polyethylene (HDPE) was investigated using molecular dynamics simulation with the reactive force field ReaxFF. The aim was to determine the qualitative and quantitative composition of the gaseous pyrolysis products and to identify the optimal temperature regimes that maximize the yield of valuable products while minimizing environmental impact. The simulations were carried out using the Materials Studio and LAMMPS software packages. An atomistic model of HDPE with added oxygen molecules was created, followed by geometry optimization, energy minimization, and equilibration in the NVT ensemble at 300 K. Pyrolysis was simulated at temperatures ranging from 600 °C to 2000 °C. The results suggest that 1000 °C is the optimal temperature for the thermal decomposition of HDPE. These findings confirm the effectiveness of ReaxFF in analyzing the chemical processes of pyrolysis and can be used in the development of polymer waste recycling technologies.
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    Optimization of the nanofiltration process: a mini-review
    (КПІ ім. Ігоря Сікорського, 2026) Ivanenko, Olena; Huliienko, Serhii; Kornienko, Yaroslav; Halysh, Vita
    Nanofiltration is the perspective and effective process for wastewater treatment. The maintenance of optimal condition is essential for providing of effective performance of nanofiltration equipment. In this analytical review the issue of optimization of the nanofiltration process during the 2011-2020 years was considered, in particular, the topics of the setting of the optimization problem, choice of the criterion of optimality, and the formulation of the objective function with using both mechanistic and statistical models. Also, the applied methods of optimization problem solution and software were briefly considered. It was defined the statistical methods were used in a wider range in comparison with the mechanistic models based optimization, despite the limitations of the range of applicability of such an approach. Correspondingly, in most work, the specialized software for the experiment design was used. The fields of the practical application of the results of the optimization of the nanofiltration process were also analyzed. It was pointed out that for the optimization of nanofiltration, a narrower variety of approaches was applied in comparison with reverse osmosis, which is the closest to the nanofiltration process.