ИССЛЕДОВАНИЕ ЗАКОНОМЕРНОСТЕЙ ПИРОЛИЗА ТВЕРДЫХ ОРГАНИЧЕСКИХ ПОЛИМЕРОВ ПРИ ИХ НАГРЕВЕ РАСПЛАВОМ МЕТАЛЛА, "Нефтехимия"

Ульянов, В В; Гулевский, В А; Koshelev, Mikhail; Kharchuk, S; Тимочкин, А В

doi:10.7868/s0028242118010100

Cited by 3 publications

(2 citation statements)

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“…Если говорить о глубокой химической перера ботке резиновых отходов, то в этом направлении преобладают работы, посвящ енны е вы сокотем пературному (>400°С) пиролизу ш ин [24][25][26][27][28][29]. В большинстве случаев цель пиролиза -получение газообразного и ж идкого топлива, т.е., по сути, то же сжигание покры ш ек, только с промежуточной эндотермической стадией.…”

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“…%, что дает его выход в размере 3.6 мае. % в расчете на загруженную резину и находится на уровне лучших результатов, достигнутых при термохими ческой переработке ш ин [25]. Содержание незаме щ енных ПАУ в атмосферном дистилляте наимень шее среди сопоставляемых образцов (0.11 мае.…”

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Получение Нефтехимического Сырья Из Резиновых Отходов Методом Термического Сольволиза

Юсевич¹,

Малевич²,

Генарова³

2020

Нефтехимия

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Получение Нефтехимического Сырья Из Резиновых Отходов Методом Термического Сольволиза

Юсевич¹,

Малевич²,

Генарова³

2020

Нефтехимия

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Modeling of Heat Transfer in Round Channels of Continuous Casting Machines With Promising Lead-Bismuth Crystallizer

Ulyanov

Koshelev

Konovalov

et al. 2020

Problems of Atomic Science and Technology. Series: Nuclear and Reactor Constants

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As part of the search for new areas of application of liquid metal coolants, their use for cooling crystallizers of steel in continuous casting machines instead of water has been proposed. This solution will reduce energy costs in the production of steel due to the implementation of the steam-power cycle with the generation of electricity. This article describes the results of the justification of the optimal liquid metal coolant and the modeling of cooling of a round crystallizer channel by it. It is shown that the eutectic alloy of lead with bismuth, which was successfully used as a coolant for ship reactors in the Soviet Union, is best suited to solve this problem. A comparative simulation of cooling of hardened steel in a round channel with a lead-bismuth eutectic with temperatures of 180 °C and 450 °C and water with a temperature of 20 °C revealed that replacing water with a liquid metal coolant practically does not reduce the efficiency of steel production. The greatest heat flux is removed from the steel crystallizer at a temperature of lead-bismuth eutectic at the inlet of the steel crystallizer equal to 180 °C. The temperature of the lead-bismuth eutectic at the outlet of the steel crystallizer reaches 400 °C, which is sufficient to generate electricity in the steam-power cycle. The choice in favor of modeling in comparison with the experiment was made in accordance with current trends in cost reduction due to the use of computer-based calculation tools. It is advisable to continue research to select the wall material and determine the optimal shape of the cooling channels of the crystallizer for maximum intensification of heat transfer between hardening steel and lead-bismuth coolant.

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Maintaining the Quality of Lead Containing Coolant in Advanced Technologies Recycling Organic and Inorganic Waste

Ulyanov

Koshelev

Kharchuk

2021

Problems of Atomic Science and Technology. Series: Nuclear and Reactor Constants

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The unique properties of heavy liquid metal coolants (low chemical activity when interacting with air, organic compounds, water and water vapor, high boiling point, low vapor pressure) allow them to be used both in the first circuits of fast neutron reactor plants and in heat exchangers used for processing various organic and inorganic raw materials. Such devices can be either recuperative or mixing type. The latter additionally have the following advantages: lower cost and simplicity of construction; no heat transfer surfaces that can be subject to corrosion and contamination; reduced dimensions due to a larger specific heat transfer surface. The greatest degree of study relates to liquid metal pyrolysis of solid substances, direct contact distillation of aqueous solutions without preliminary preparation, improving the efficiency of continuous casting machines due to the replacement of water with lead-bismuth eutectic. The results of research in support of the above processes are presented. The methods of maintaining the quality of lead-containing heat carriers do not have fundamental differences for the conditions of reactor installations and in relation to promising technologies for processing organic and inorganic raw materials. At the same time, the requirements for devices for implementing these methods in promising technologies for processing various raw materials are significantly lower: in general, a sensor for measuring the thermodynamic activity of oxygen and a device for entering gas (hydrogen-containing or oxygen-containing) mixtures in the coolants.

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ИССЛЕДОВАНИЕ ЗАКОНОМЕРНОСТЕЙ ПИРОЛИЗА ТВЕРДЫХ ОРГАНИЧЕСКИХ ПОЛИМЕРОВ ПРИ ИХ НАГРЕВЕ РАСПЛАВОМ МЕТАЛЛА, "Нефтехимия"

Cited by 3 publications

References 0 publications

Получение Нефтехимического Сырья Из Резиновых Отходов Методом Термического Сольволиза

Получение Нефтехимического Сырья Из Резиновых Отходов Методом Термического Сольволиза

Modeling of Heat Transfer in Round Channels of Continuous Casting Machines With Promising Lead-Bismuth Crystallizer

Maintaining the Quality of Lead Containing Coolant in Advanced Technologies Recycling Organic and Inorganic Waste

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