Effect of Cu(NO<sub>3</sub>)<sub>2</sub> and Cu(CH<sub>3</sub>COO)<sub>2</sub> Activating Additives on Combustion Characteristics of Anthracite and Its Semi-Coke
The process of anthracite and its semi-coke combustion in the presence of 5 wt.% (in terms of dry salt) additives of copper salts Cu(NO<sub>3</sub>)<sub>2</sub> and Cu(CH<sub>3</sub>COO)<sub>2</sub> was studied. The activating additives were introduced...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2020-11-01
|
| Series: | Energies |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1073/13/22/5926 |
| _version_ | 1797547987665158144 |
|---|---|
| author | Kirill Larionov Konstantin Slyusarskiy Svyatoslav Tsibulskiy Anton Tolokolnikov Ilya Mishakov Yury Bauman Aleksey Vedyagin Alexander Gromov |
| author_facet | Kirill Larionov Konstantin Slyusarskiy Svyatoslav Tsibulskiy Anton Tolokolnikov Ilya Mishakov Yury Bauman Aleksey Vedyagin Alexander Gromov |
| author_sort | Kirill Larionov |
| collection | DOAJ |
| description | The process of anthracite and its semi-coke combustion in the presence of 5 wt.% (in terms of dry salt) additives of copper salts Cu(NO<sub>3</sub>)<sub>2</sub> and Cu(CH<sub>3</sub>COO)<sub>2</sub> was studied. The activating additives were introduced by an incipient wetness procedure. The ignition and combustion parameters for coal samples were examined in the combustion chamber at the heating medium temperatures (T<sub>g</sub>) of 600–800 °C. The composition of the gaseous combustion products was controlled using an on-line gas analyzer. The fuel modification with copper salts was found to reduce the ignition delay time on average, along with a drop in the minimum ignition temperature T<sub>min</sub> by 138–277 °C. With an increase in T<sub>g</sub> temperature, a significant reduction in the ignition delay time for the anthracite and semi-coke samples (by a factor of 6.7) was observed. The maximum difference in the ignition delay time between the original and modified samples of anthracite (ΔT<sub>i</sub> = 5.5 s) and semi-coke (ΔT<sub>i</sub> = 5.4 s) was recorded at a T<sub>g</sub> temperature of 600 °C in the case of Cu(CH<sub>3</sub>COO)<sub>2</sub>. The emergence of micro-explosions was detected at an early stage of combustion via high-speed video imaging for samples modified by copper acetate. According to the on-line gas analysis data, the addition of copper salts permits one to reduce the volume of CO formed by 40% on average, providing complete oxidation of the fuel to CO<sub>2</sub>. It was shown that the introduction of additives promoted the reduction in the NO<sub>x</sub> emissions during the combustion of the anthracite and semi-coke samples. |
| first_indexed | 2024-03-10T14:51:54Z |
| format | Article |
| id | doaj.art-7c2d47d67cb84a4fb167eb659a456837 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T14:51:54Z |
| publishDate | 2020-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-7c2d47d67cb84a4fb167eb659a4568372023-11-20T20:53:49ZengMDPI AGEnergies1996-10732020-11-011322592610.3390/en13225926Effect of Cu(NO<sub>3</sub>)<sub>2</sub> and Cu(CH<sub>3</sub>COO)<sub>2</sub> Activating Additives on Combustion Characteristics of Anthracite and Its Semi-CokeKirill Larionov0Konstantin Slyusarskiy1Svyatoslav Tsibulskiy2Anton Tolokolnikov3Ilya Mishakov4Yury Bauman5Aleksey Vedyagin6Alexander Gromov7School of Energy & Power Engineering, National Research Tomsk Polytechnic University, 634050 Tomsk, RussiaSchool of Energy & Power Engineering, National Research Tomsk Polytechnic University, 634050 Tomsk, RussiaSchool of Energy & Power Engineering, National Research Tomsk Polytechnic University, 634050 Tomsk, RussiaSchool of Energy & Power Engineering, National Research Tomsk Polytechnic University, 634050 Tomsk, RussiaLaboratory of Catalysis and Processing of Hydrocarbons, National University of Science and Technology “MISIS”, 119049 Moscow, RussiaLaboratory of Catalysis and Processing of Hydrocarbons, National University of Science and Technology “MISIS”, 119049 Moscow, RussiaLaboratory of Catalysis and Processing of Hydrocarbons, National University of Science and Technology “MISIS”, 119049 Moscow, RussiaLaboratory of Catalysis and Processing of Hydrocarbons, National University of Science and Technology “MISIS”, 119049 Moscow, RussiaThe process of anthracite and its semi-coke combustion in the presence of 5 wt.% (in terms of dry salt) additives of copper salts Cu(NO<sub>3</sub>)<sub>2</sub> and Cu(CH<sub>3</sub>COO)<sub>2</sub> was studied. The activating additives were introduced by an incipient wetness procedure. The ignition and combustion parameters for coal samples were examined in the combustion chamber at the heating medium temperatures (T<sub>g</sub>) of 600–800 °C. The composition of the gaseous combustion products was controlled using an on-line gas analyzer. The fuel modification with copper salts was found to reduce the ignition delay time on average, along with a drop in the minimum ignition temperature T<sub>min</sub> by 138–277 °C. With an increase in T<sub>g</sub> temperature, a significant reduction in the ignition delay time for the anthracite and semi-coke samples (by a factor of 6.7) was observed. The maximum difference in the ignition delay time between the original and modified samples of anthracite (ΔT<sub>i</sub> = 5.5 s) and semi-coke (ΔT<sub>i</sub> = 5.4 s) was recorded at a T<sub>g</sub> temperature of 600 °C in the case of Cu(CH<sub>3</sub>COO)<sub>2</sub>. The emergence of micro-explosions was detected at an early stage of combustion via high-speed video imaging for samples modified by copper acetate. According to the on-line gas analysis data, the addition of copper salts permits one to reduce the volume of CO formed by 40% on average, providing complete oxidation of the fuel to CO<sub>2</sub>. It was shown that the introduction of additives promoted the reduction in the NO<sub>x</sub> emissions during the combustion of the anthracite and semi-coke samples.https://www.mdpi.com/1996-1073/13/22/5926anthracitesemi-cokeignitioncombustionactivating additivecopper acetate |
| spellingShingle | Kirill Larionov Konstantin Slyusarskiy Svyatoslav Tsibulskiy Anton Tolokolnikov Ilya Mishakov Yury Bauman Aleksey Vedyagin Alexander Gromov Effect of Cu(NO<sub>3</sub>)<sub>2</sub> and Cu(CH<sub>3</sub>COO)<sub>2</sub> Activating Additives on Combustion Characteristics of Anthracite and Its Semi-Coke Energies anthracite semi-coke ignition combustion activating additive copper acetate |
| title | Effect of Cu(NO<sub>3</sub>)<sub>2</sub> and Cu(CH<sub>3</sub>COO)<sub>2</sub> Activating Additives on Combustion Characteristics of Anthracite and Its Semi-Coke |
| title_full | Effect of Cu(NO<sub>3</sub>)<sub>2</sub> and Cu(CH<sub>3</sub>COO)<sub>2</sub> Activating Additives on Combustion Characteristics of Anthracite and Its Semi-Coke |
| title_fullStr | Effect of Cu(NO<sub>3</sub>)<sub>2</sub> and Cu(CH<sub>3</sub>COO)<sub>2</sub> Activating Additives on Combustion Characteristics of Anthracite and Its Semi-Coke |
| title_full_unstemmed | Effect of Cu(NO<sub>3</sub>)<sub>2</sub> and Cu(CH<sub>3</sub>COO)<sub>2</sub> Activating Additives on Combustion Characteristics of Anthracite and Its Semi-Coke |
| title_short | Effect of Cu(NO<sub>3</sub>)<sub>2</sub> and Cu(CH<sub>3</sub>COO)<sub>2</sub> Activating Additives on Combustion Characteristics of Anthracite and Its Semi-Coke |
| title_sort | effect of cu no sub 3 sub sub 2 sub and cu ch sub 3 sub coo sub 2 sub activating additives on combustion characteristics of anthracite and its semi coke |
| topic | anthracite semi-coke ignition combustion activating additive copper acetate |
| url | https://www.mdpi.com/1996-1073/13/22/5926 |
| work_keys_str_mv | AT kirilllarionov effectofcunosub3subsub2subandcuchsub3subcoosub2subactivatingadditivesoncombustioncharacteristicsofanthraciteanditssemicoke AT konstantinslyusarskiy effectofcunosub3subsub2subandcuchsub3subcoosub2subactivatingadditivesoncombustioncharacteristicsofanthraciteanditssemicoke AT svyatoslavtsibulskiy effectofcunosub3subsub2subandcuchsub3subcoosub2subactivatingadditivesoncombustioncharacteristicsofanthraciteanditssemicoke AT antontolokolnikov effectofcunosub3subsub2subandcuchsub3subcoosub2subactivatingadditivesoncombustioncharacteristicsofanthraciteanditssemicoke AT ilyamishakov effectofcunosub3subsub2subandcuchsub3subcoosub2subactivatingadditivesoncombustioncharacteristicsofanthraciteanditssemicoke AT yurybauman effectofcunosub3subsub2subandcuchsub3subcoosub2subactivatingadditivesoncombustioncharacteristicsofanthraciteanditssemicoke AT alekseyvedyagin effectofcunosub3subsub2subandcuchsub3subcoosub2subactivatingadditivesoncombustioncharacteristicsofanthraciteanditssemicoke AT alexandergromov effectofcunosub3subsub2subandcuchsub3subcoosub2subactivatingadditivesoncombustioncharacteristicsofanthraciteanditssemicoke |