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Basiсs of Hybrid Energy-Metallurgical and Catalytic Technology of Synthetic Methane Production // International Journal of Engineering Research and Technologyстатья
- Авторы: Protopopov E., Malenko P., Dobrykh S., Golosman E., Efremov V., Zhenaeva E., Protopopov A.
- Журнал: International Journal of Engineering Research and Technology
- Том: 12
- Номер: 12
- Год издания: 2019
- Первая страница: 2179
- Последняя страница: 2184
- Аннотация: In this paper, we considered the approach to reducing thelevel of GHGs emissions below the limit, which the reductionreaction of iron oxides by carbon determines. We have shownthis is possible if a part of the gases (CO) leaving themetallurgical unit will be processed into synthetic methane orother commercial chemical products. For this purpose themetallurgical unit of continuous action is necessary. Welooked at the physical-chemical basis of operation of such aunit on the basis of smelting reduction (SR) in an electric arcfurnace. In this unit, a mixture of powders of stoichiometriccomposition from iron ore magnetite concentrate and coal isfed through the tuyeres deepened to the bottom of the metalbath by injection (CO is the injecting gas). These tuyeres arelocated under the electrodes. As a result, a reaction zoneoccurs in a metal bath (low carbon steel) in each cylindricalregion that extends from the tuyere to the electrode. In thisreaction zone, FeO dissolves in a metal bath (without slagformation) and is reduced by solid carbon particles, whichfloat up. The mathematical model of this process is created.For the reaction zone under consideration, an equation forcalculating the productivity (relative to the mass of reducediron) was obtained. The calculation results show that ametallurgical unit with 6 reaction zones (6 electrodes in anelectric arc installation) with a total volume of a metal bath(including all 6 reaction zones) of about 16 m3 has a designcapacity of about 411 t/h of an iron-carbon product (low-carbon steel with a carbon content of about 0.2 %). Forexample, such a productivity corresponds, to the totalperformance (by weight of blast furnace iron) of a blastfurnace shop, which has several blast furnaces to a total3volume of about 7000 m . The considered process of hybridenergy-metallurgical and catalytic technology of synthetic methane production is capable to replace equally (regardingoverall productivity) blast-furnace and converter production,and also, about these productions, to provide double reductionof technogenic loading on environment.
- Добавил в систему: Добрых Сюзанна Сергеевна