Study of the effects of active bromine species presence in electrolytic desulfurization of subbituminous coal
2023
Аутори
Pantović Spajić, KatarinaPantović Pavlović, Marijana
Božić, Katarina
Gjumišev, Đorđe
Panić, Vladimir
Pavlović, Miroslav
Stojanović, Ksenija
Конференцијски прилог (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
The removal of organic and inorganic sulfur from the Bogovina Basin subbituminous coal by electrochemical redox reactions was performed. The effect of presence of active bromine species on the desulfurization process was monitored. The desulfurization was performed in inorganic acidic solutions that contained different bromide concentrations and in pure acid solution. To
determine the optimal conditions for the desulfurization process, polarization curves were
recorded in three different electrolytes: 0.1 M H2SO4, 0.1 M H2SO4 + 0.01 M KBr, and 0.1 M
H2SO4 + 0.1 M KBr using graphite and dimensionally stable anode (DSA) electrodes as the
anode, while in all cases stainless steel S31603 electrode was used as cathode. By analyzing the
results obtained from the polarization curves, 0.1 M H2SO4 and 0.1 M H2SO4 + 0.1 M KBr were
chosen as the most suitable electrolytes. Also, it was found that the DSA anode showed better
results in terms of energy efficiency of the process compar...ed to the graphite anode and therefore
it was selected for the coal desulfurization process. It is considered that finely suspended coal
particles in an electrolyte can behave according to bipolar electrochemistry. Coal was treated
for 4 hours in two selected electrolytes. The suspension was sampled at different times up to 240
min from the beginning of the process. Sulfur content in coal was determined by elemental
analysis. The results showed that the sulfur content decreases faster in the case of the electrolyte
containing KBr, i.e. that the desulfurization effect is significantly better than in the case of the
system containing only H2SO4. It can be concluded that active bromine species accelerate the
desulfurization process and thus improve energy efficiency.
Кључне речи:
subbitominous coal / oxidative desulfurization / organic sulfur / active bromine species / electrolytic desulfurization / DSAИзвор:
Book of Abstracts - VIII International Congress Engineering, Environment and Materials in Process Industry, March 20-23, 2023, Jahorina - Republic of Srpska, Bosnia and Herzegovina, 2023, 64-64Издавач:
- Zvornik : Faculty of Technology
Финансирање / пројекти:
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200023 (Институт за технологију нуклеарних и других минералних сировина - ИТНМС, Београд) (RS-MESTD-inst-2020-200023)
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200026 (Универзитет у Београду, Институт за хемију, технологију и металургију - ИХТМ) (RS-MESTD-inst-2020-200026)
Институција/група
IHTMTY - CONF AU - Pantović Spajić, Katarina AU - Pantović Pavlović, Marijana AU - Božić, Katarina AU - Gjumišev, Đorđe AU - Panić, Vladimir AU - Pavlović, Miroslav AU - Stojanović, Ksenija PY - 2023 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/6555 AB - The removal of organic and inorganic sulfur from the Bogovina Basin subbituminous coal by electrochemical redox reactions was performed. The effect of presence of active bromine species on the desulfurization process was monitored. The desulfurization was performed in inorganic acidic solutions that contained different bromide concentrations and in pure acid solution. To determine the optimal conditions for the desulfurization process, polarization curves were recorded in three different electrolytes: 0.1 M H2SO4, 0.1 M H2SO4 + 0.01 M KBr, and 0.1 M H2SO4 + 0.1 M KBr using graphite and dimensionally stable anode (DSA) electrodes as the anode, while in all cases stainless steel S31603 electrode was used as cathode. By analyzing the results obtained from the polarization curves, 0.1 M H2SO4 and 0.1 M H2SO4 + 0.1 M KBr were chosen as the most suitable electrolytes. Also, it was found that the DSA anode showed better results in terms of energy efficiency of the process compared to the graphite anode and therefore it was selected for the coal desulfurization process. It is considered that finely suspended coal particles in an electrolyte can behave according to bipolar electrochemistry. Coal was treated for 4 hours in two selected electrolytes. The suspension was sampled at different times up to 240 min from the beginning of the process. Sulfur content in coal was determined by elemental analysis. The results showed that the sulfur content decreases faster in the case of the electrolyte containing KBr, i.e. that the desulfurization effect is significantly better than in the case of the system containing only H2SO4. It can be concluded that active bromine species accelerate the desulfurization process and thus improve energy efficiency. PB - Zvornik : Faculty of Technology C3 - Book of Abstracts - VIII International Congress Engineering, Environment and Materials in Process Industry, March 20-23, 2023, Jahorina - Republic of Srpska, Bosnia and Herzegovina T1 - Study of the effects of active bromine species presence in electrolytic desulfurization of subbituminous coal SP - 64 EP - 64 UR - https://hdl.handle.net/21.15107/rcub_cer_6555 ER -
@conference{ author = "Pantović Spajić, Katarina and Pantović Pavlović, Marijana and Božić, Katarina and Gjumišev, Đorđe and Panić, Vladimir and Pavlović, Miroslav and Stojanović, Ksenija", year = "2023", abstract = "The removal of organic and inorganic sulfur from the Bogovina Basin subbituminous coal by electrochemical redox reactions was performed. The effect of presence of active bromine species on the desulfurization process was monitored. The desulfurization was performed in inorganic acidic solutions that contained different bromide concentrations and in pure acid solution. To determine the optimal conditions for the desulfurization process, polarization curves were recorded in three different electrolytes: 0.1 M H2SO4, 0.1 M H2SO4 + 0.01 M KBr, and 0.1 M H2SO4 + 0.1 M KBr using graphite and dimensionally stable anode (DSA) electrodes as the anode, while in all cases stainless steel S31603 electrode was used as cathode. By analyzing the results obtained from the polarization curves, 0.1 M H2SO4 and 0.1 M H2SO4 + 0.1 M KBr were chosen as the most suitable electrolytes. Also, it was found that the DSA anode showed better results in terms of energy efficiency of the process compared to the graphite anode and therefore it was selected for the coal desulfurization process. It is considered that finely suspended coal particles in an electrolyte can behave according to bipolar electrochemistry. Coal was treated for 4 hours in two selected electrolytes. The suspension was sampled at different times up to 240 min from the beginning of the process. Sulfur content in coal was determined by elemental analysis. The results showed that the sulfur content decreases faster in the case of the electrolyte containing KBr, i.e. that the desulfurization effect is significantly better than in the case of the system containing only H2SO4. It can be concluded that active bromine species accelerate the desulfurization process and thus improve energy efficiency.", publisher = "Zvornik : Faculty of Technology", journal = "Book of Abstracts - VIII International Congress Engineering, Environment and Materials in Process Industry, March 20-23, 2023, Jahorina - Republic of Srpska, Bosnia and Herzegovina", title = "Study of the effects of active bromine species presence in electrolytic desulfurization of subbituminous coal", pages = "64-64", url = "https://hdl.handle.net/21.15107/rcub_cer_6555" }
Pantović Spajić, K., Pantović Pavlović, M., Božić, K., Gjumišev, Đ., Panić, V., Pavlović, M.,& Stojanović, K.. (2023). Study of the effects of active bromine species presence in electrolytic desulfurization of subbituminous coal. in Book of Abstracts - VIII International Congress Engineering, Environment and Materials in Process Industry, March 20-23, 2023, Jahorina - Republic of Srpska, Bosnia and Herzegovina Zvornik : Faculty of Technology., 64-64. https://hdl.handle.net/21.15107/rcub_cer_6555
Pantović Spajić K, Pantović Pavlović M, Božić K, Gjumišev Đ, Panić V, Pavlović M, Stojanović K. Study of the effects of active bromine species presence in electrolytic desulfurization of subbituminous coal. in Book of Abstracts - VIII International Congress Engineering, Environment and Materials in Process Industry, March 20-23, 2023, Jahorina - Republic of Srpska, Bosnia and Herzegovina. 2023;:64-64. https://hdl.handle.net/21.15107/rcub_cer_6555 .
Pantović Spajić, Katarina, Pantović Pavlović, Marijana, Božić, Katarina, Gjumišev, Đorđe, Panić, Vladimir, Pavlović, Miroslav, Stojanović, Ksenija, "Study of the effects of active bromine species presence in electrolytic desulfurization of subbituminous coal" in Book of Abstracts - VIII International Congress Engineering, Environment and Materials in Process Industry, March 20-23, 2023, Jahorina - Republic of Srpska, Bosnia and Herzegovina (2023):64-64, https://hdl.handle.net/21.15107/rcub_cer_6555 .