Influence of Cu(NO3)2 Activator and Gas Composition on the Thermal Decomposition of Coal and Lignite

Abstract

Abstract: The thermal transformation of coal and lignite in the presence of Cu(NO₃)₂ activator (5 wt %) is investigated as a function of the atmospheric composition. The copper nitrate is supported on to the samples by the incipient wetness with Cu(NO₃)₂ solution in water and alcohol. The effect of the activator is studied as a function of the gas (air/argon) composition, by thermogravimetric analysis with heating at 10°C/min in the range 25–800°C, at atmospheric pressure. With change in gas composition, the activity of Cu(NO₃)₂ changes. Specifically, the thermal transformation is shifted to lower temperature: Δt = 33°C for lignite and 70°C for coal. With increase in oxidant (air) content in the gas, the activity of the added Cu(NO₃)₂ increases: that is, Δt increases. By mass spectrometry, the gaseous oxidation products of the coal are analyzed. The upper temperature limits on the peaks of nitrogen-oxide (NO_x) liberation are determined as a function of the gas composition.

Original language	English
Pages (from-to)	114-119
Number of pages	6
Journal	Coke and Chemistry
Volume	63
Issue number	3
DOIs	https://doi.org/10.3103/S1068364X20030035
Publication status	Published - 1 Mar 2020

Keywords

activated oxidation
coal
copper nitrate
gas composition
lignite
mass-spectrometric analysis
oxidation temperature
thermogravimetric analysis

ASJC Scopus subject areas

Environmental Chemistry
Fuel Technology
Process Chemistry and Technology

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title = "Influence of Cu(NO3)2 Activator and Gas Composition on the Thermal Decomposition of Coal and Lignite",

abstract = "Abstract: The thermal transformation of coal and lignite in the presence of Cu(NO3)2 activator (5 wt %) is investigated as a function of the atmospheric composition. The copper nitrate is supported on to the samples by the incipient wetness with Cu(NO3)2 solution in water and alcohol. The effect of the activator is studied as a function of the gas (air/argon) composition, by thermogravimetric analysis with heating at 10°C/min in the range 25–800°C, at atmospheric pressure. With change in gas composition, the activity of Cu(NO3)2 changes. Specifically, the thermal transformation is shifted to lower temperature: Δt = 33°C for lignite and 70°C for coal. With increase in oxidant (air) content in the gas, the activity of the added Cu(NO3)2 increases: that is, Δt increases. By mass spectrometry, the gaseous oxidation products of the coal are analyzed. The upper temperature limits on the peaks of nitrogen-oxide (NOx) liberation are determined as a function of the gas composition.",

keywords = "activated oxidation, coal, copper nitrate, gas composition, lignite, mass-spectrometric analysis, oxidation temperature, thermogravimetric analysis",

author = "Larionov, {K. B.} and Mishakov, {I. V.} and Slyusarskiy, {K. V.} and Lavrinenko, {S. V.} and Gromov, {A. A.} and Vedyagin, {A. A.}",

year = "2020",

month = mar,

day = "1",

doi = "10.3103/S1068364X20030035",

language = "English",

volume = "63",

pages = "114--119",

journal = "Coke and Chemistry",

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T1 - Influence of Cu(NO3)2 Activator and Gas Composition on the Thermal Decomposition of Coal and Lignite

AU - Larionov, K. B.

AU - Mishakov, I. V.

AU - Slyusarskiy, K. V.

AU - Lavrinenko, S. V.

AU - Gromov, A. A.

AU - Vedyagin, A. A.

PY - 2020/3/1

Y1 - 2020/3/1

N2 - Abstract: The thermal transformation of coal and lignite in the presence of Cu(NO3)2 activator (5 wt %) is investigated as a function of the atmospheric composition. The copper nitrate is supported on to the samples by the incipient wetness with Cu(NO3)2 solution in water and alcohol. The effect of the activator is studied as a function of the gas (air/argon) composition, by thermogravimetric analysis with heating at 10°C/min in the range 25–800°C, at atmospheric pressure. With change in gas composition, the activity of Cu(NO3)2 changes. Specifically, the thermal transformation is shifted to lower temperature: Δt = 33°C for lignite and 70°C for coal. With increase in oxidant (air) content in the gas, the activity of the added Cu(NO3)2 increases: that is, Δt increases. By mass spectrometry, the gaseous oxidation products of the coal are analyzed. The upper temperature limits on the peaks of nitrogen-oxide (NOx) liberation are determined as a function of the gas composition.

AB - Abstract: The thermal transformation of coal and lignite in the presence of Cu(NO3)2 activator (5 wt %) is investigated as a function of the atmospheric composition. The copper nitrate is supported on to the samples by the incipient wetness with Cu(NO3)2 solution in water and alcohol. The effect of the activator is studied as a function of the gas (air/argon) composition, by thermogravimetric analysis with heating at 10°C/min in the range 25–800°C, at atmospheric pressure. With change in gas composition, the activity of Cu(NO3)2 changes. Specifically, the thermal transformation is shifted to lower temperature: Δt = 33°C for lignite and 70°C for coal. With increase in oxidant (air) content in the gas, the activity of the added Cu(NO3)2 increases: that is, Δt increases. By mass spectrometry, the gaseous oxidation products of the coal are analyzed. The upper temperature limits on the peaks of nitrogen-oxide (NOx) liberation are determined as a function of the gas composition.

KW - activated oxidation

KW - coal

KW - copper nitrate

KW - gas composition

KW - lignite

KW - mass-spectrometric analysis

KW - oxidation temperature

KW - thermogravimetric analysis

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JO - Coke and Chemistry

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Influence of Cu(NO₃)₂ Activator and Gas Composition on the Thermal Decomposition of Coal and Lignite

Abstract

Keywords

ASJC Scopus subject areas

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Fingerprint Dive into the research topics of 'Influence of Cu(NO<sub>3</sub>)<sub>2</sub> Activator and Gas Composition on the Thermal Decomposition of Coal and Lignite'. Together they form a unique fingerprint.

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