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101 0 _aeng
102 _aUS
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181 0 _ai
182 0 _ab
200 1 _aInfluence of the Heating Rate on the Activation of Coal and Lignite Oxidation by Copper Nitrate
_fK. B. Larionov, I. V. Mishakov, A. V. Zenkov [et al.]
203 _aText
_celectronic
300 _aTitle screen
320 _a[References: 16 tit.]
330 _aAdding copper nitrate Cu(NO3)2 is known to activate the oxidation of coal and lignite. In the present work, the change in its activating properties with increase in the heating rate is studied. The Cu(NO3)2 is first dissolved in a 50/50 (by volume) mixture of ethyl alcohol and water. Then it is applied to the fuel by steeping, to a content of 5 wt %. Activated oxidation is studied by thermal analysis, with different heating rates (2.5, 10, 20, and 40°C/min) in the temperature range 25–1000°C, at atmospheric pressure. With increase in heating rate, the catalytic effect of the additive is intensified: the initial (30–115°C) and final (85–180°C) oxidation temperatures fall, with increase in the maximum reaction rate. Mass-spectrometric analysis of the gaseous oxidation products shows that, in the presence of copper nitrate, increase in the heating rate leads to greater CO2 emission, with shorter oxidation time. The dependence of the activation energy on the degree of fuel conversion is determined by the Friedman method. The decrease in the mean activation energy when using Cu(NO3)2 is ~14 kJ/mol for lignite and ~35 kJ/mol for coal.
333 _aРежим доступа: по договору с организацией-держателем ресурса
461 _tCoke and Chemistry
463 _tVol. 63, iss. 8
_v[P. 2-9]
_d2020
610 1 _aэлектронный ресурс
610 1 _aтруды учёных ТПУ
610 1 _acoal
610 1 _alignite
610 1 _aheating rate
610 1 _aactivated oxidation
610 1 _acopper nitrate
610 1 _athermogravimetric analysis
610 1 _amass-spectrometric analysis
610 1 _aуголь
610 1 _aокисление
610 1 _aтермогравиметрический анализ
610 1 _aмасс-спектрометрический анализ
701 1 _aLarionov
_bK. B.
_cspecialist in the field of power engineering
_ctechnician of Tomsk Polytechnic University
_f1990-
_gKirill Borisovich
_2stltpush
_3(RuTPU)RU\TPU\pers\35705
701 1 _aMishakov
_bI. V.
_cchemist
_cAssociate Professor of Tomsk Polytechnic University, candidate of chemical sciences
_f1977-
_gIljya Vladimirovich
_2stltpush
_3(RuTPU)RU\TPU\pers\36375
701 1 _aZenkov
_bA. V.
_cengineer at Tomsk Polytechnic University, assistant
_cspecialist in the field of power engineering
_f1992-
_gAndrey Viktorovich
_2stltpush
_3(RuTPU)RU\TPU\pers\37816
701 1 _aSlusarskiy (Slyusarsky)
_bK. V.
_cspecialist in the field of power engineering
_cassistant of Tomsk Polytechnic University
_f1990-
_gKonstantin Vitalievich
_2stltpush
_3(RuTPU)RU\TPU\pers\35634
701 1 _aGromov
_bA. A.
_cChemical Engineer
_cProfessor of Tomsk Polytechnic University, Doctor of technical sciences
_f1975-
_gAleksandr Aleksandrovich
_2stltpush
_3(RuTPU)RU\TPU\pers\33059
712 0 2 _aНациональный исследовательский Томский политехнический университет
_bИнженерная школа энергетики
_bНаучно-образовательный центр И. Н. Бутакова (НОЦ И. Н. Бутакова)
_h8025
_2stltpush
_3(RuTPU)RU\TPU\col\23504
801 2 _aRU
_b63413507
_c20210520
_gRCR
856 4 _uhttps://doi.org/10.3103/S1068364X20080037
942 _cCF