Hydrothermal carbonization of Miscanthus x giganteus: Structural and fuel properties of hydrochars and organic profile with the ecotoxicological assessment of the liquid phase
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Аутори
Mihajlović, MarijaPetrović, Jelena
Maletić, Snežana
Kragulj-Isakovski, Marijana
Stojanović, Mirjana
Lopičić, Zorica
Trifunović, Snežana
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
In this study, hydrothermal carbonization (HTC) was employed for thermochemical conversion of energy crop Miscanthus x gigcuiteus GREEF et DEU. The effect of process temperatures, in the range between 180 and 220 degrees C, on the relevant characteristics of the obtained products, hydrochars and process waters, was investigated. The obtained results showed that the HTC promotes fuel properties and energy density of the solids regarding the feedstock. Furthermore, temperature governs the lowering of the volatiles, ash, and moisture in hydrochars, making its potential use as solid fuels more beneficial than the miscanthus. FT-IR spectroscopy and thermal analysis confirmed degradation of hemicellulose at temperatures above 200 degrees C, and an increase of the total content of cellulose and lignin in the hydrochars. In general, hydrochar obtained at 220 degrees C exhibited the best combustion characteristics and is, therefore, the most suitable for use as a solid biofuel. However, in the ...residual liquids, some amounts of fluorene, phenanthrene, fluoranthene, and pyrene were detected. The polluting potential, visible through the growth of TOC, COD and BOD values, of the analyzed process waters, increases with the rise in carbonization temperature. The TOC values (5.8-9.9 gC L-1) were on average lower than those reported for organic wastewaters (> 10 gC L-1). The proportion of hydrocarbons in the process water increases with the increase in the carbonization temperature from 2.92 to 20.9%. Consequently, bioassays with Vibrio fischeri showed a relatively high toxicity of the liquid phase, where a concentration of about 1% was causing bacteria inhibition of 50%.
Кључне речи:
Vibrio fischeri / Solid fuel / PAHs / Organics / Miscanthus / HydrocharИзвор:
Energy Conversion and Management, 2018, 159, 254-263Издавач:
- Pergamon-Elsevier Science Ltd, Oxford
Финансирање / пројекти:
- Развој технологија и производа на бази минералних сировина и отпадне биомасе у циљу заштите ресурса за производњу безбедне хране (RS-MESTD-Technological Development (TD or TR)-31003)
- Унапређење технологија ремедијације седимента у циљу заштите вода (RS-MESTD-Technological Development (TD or TR)-37004)
DOI: 10.1016/j.enconman.2018.01.003
ISSN: 0196-8904
WoS: 000426412000024
Scopus: 2-s2.0-85044644533
Институција/група
Institut za tehnologiju nuklearnih i drugih mineralnih sirovinaTY - JOUR AU - Mihajlović, Marija AU - Petrović, Jelena AU - Maletić, Snežana AU - Kragulj-Isakovski, Marijana AU - Stojanović, Mirjana AU - Lopičić, Zorica AU - Trifunović, Snežana PY - 2018 UR - https://ritnms.itnms.ac.rs/handle/123456789/476 AB - In this study, hydrothermal carbonization (HTC) was employed for thermochemical conversion of energy crop Miscanthus x gigcuiteus GREEF et DEU. The effect of process temperatures, in the range between 180 and 220 degrees C, on the relevant characteristics of the obtained products, hydrochars and process waters, was investigated. The obtained results showed that the HTC promotes fuel properties and energy density of the solids regarding the feedstock. Furthermore, temperature governs the lowering of the volatiles, ash, and moisture in hydrochars, making its potential use as solid fuels more beneficial than the miscanthus. FT-IR spectroscopy and thermal analysis confirmed degradation of hemicellulose at temperatures above 200 degrees C, and an increase of the total content of cellulose and lignin in the hydrochars. In general, hydrochar obtained at 220 degrees C exhibited the best combustion characteristics and is, therefore, the most suitable for use as a solid biofuel. However, in the residual liquids, some amounts of fluorene, phenanthrene, fluoranthene, and pyrene were detected. The polluting potential, visible through the growth of TOC, COD and BOD values, of the analyzed process waters, increases with the rise in carbonization temperature. The TOC values (5.8-9.9 gC L-1) were on average lower than those reported for organic wastewaters (> 10 gC L-1). The proportion of hydrocarbons in the process water increases with the increase in the carbonization temperature from 2.92 to 20.9%. Consequently, bioassays with Vibrio fischeri showed a relatively high toxicity of the liquid phase, where a concentration of about 1% was causing bacteria inhibition of 50%. PB - Pergamon-Elsevier Science Ltd, Oxford T2 - Energy Conversion and Management T1 - Hydrothermal carbonization of Miscanthus x giganteus: Structural and fuel properties of hydrochars and organic profile with the ecotoxicological assessment of the liquid phase EP - 263 SP - 254 VL - 159 DO - 10.1016/j.enconman.2018.01.003 UR - conv_818 ER -
@article{ author = "Mihajlović, Marija and Petrović, Jelena and Maletić, Snežana and Kragulj-Isakovski, Marijana and Stojanović, Mirjana and Lopičić, Zorica and Trifunović, Snežana", year = "2018", abstract = "In this study, hydrothermal carbonization (HTC) was employed for thermochemical conversion of energy crop Miscanthus x gigcuiteus GREEF et DEU. The effect of process temperatures, in the range between 180 and 220 degrees C, on the relevant characteristics of the obtained products, hydrochars and process waters, was investigated. The obtained results showed that the HTC promotes fuel properties and energy density of the solids regarding the feedstock. Furthermore, temperature governs the lowering of the volatiles, ash, and moisture in hydrochars, making its potential use as solid fuels more beneficial than the miscanthus. FT-IR spectroscopy and thermal analysis confirmed degradation of hemicellulose at temperatures above 200 degrees C, and an increase of the total content of cellulose and lignin in the hydrochars. In general, hydrochar obtained at 220 degrees C exhibited the best combustion characteristics and is, therefore, the most suitable for use as a solid biofuel. However, in the residual liquids, some amounts of fluorene, phenanthrene, fluoranthene, and pyrene were detected. The polluting potential, visible through the growth of TOC, COD and BOD values, of the analyzed process waters, increases with the rise in carbonization temperature. The TOC values (5.8-9.9 gC L-1) were on average lower than those reported for organic wastewaters (> 10 gC L-1). The proportion of hydrocarbons in the process water increases with the increase in the carbonization temperature from 2.92 to 20.9%. Consequently, bioassays with Vibrio fischeri showed a relatively high toxicity of the liquid phase, where a concentration of about 1% was causing bacteria inhibition of 50%.", publisher = "Pergamon-Elsevier Science Ltd, Oxford", journal = "Energy Conversion and Management", title = "Hydrothermal carbonization of Miscanthus x giganteus: Structural and fuel properties of hydrochars and organic profile with the ecotoxicological assessment of the liquid phase", pages = "263-254", volume = "159", doi = "10.1016/j.enconman.2018.01.003", url = "conv_818" }
Mihajlović, M., Petrović, J., Maletić, S., Kragulj-Isakovski, M., Stojanović, M., Lopičić, Z.,& Trifunović, S.. (2018). Hydrothermal carbonization of Miscanthus x giganteus: Structural and fuel properties of hydrochars and organic profile with the ecotoxicological assessment of the liquid phase. in Energy Conversion and Management Pergamon-Elsevier Science Ltd, Oxford., 159, 254-263. https://doi.org/10.1016/j.enconman.2018.01.003 conv_818
Mihajlović M, Petrović J, Maletić S, Kragulj-Isakovski M, Stojanović M, Lopičić Z, Trifunović S. Hydrothermal carbonization of Miscanthus x giganteus: Structural and fuel properties of hydrochars and organic profile with the ecotoxicological assessment of the liquid phase. in Energy Conversion and Management. 2018;159:254-263. doi:10.1016/j.enconman.2018.01.003 conv_818 .
Mihajlović, Marija, Petrović, Jelena, Maletić, Snežana, Kragulj-Isakovski, Marijana, Stojanović, Mirjana, Lopičić, Zorica, Trifunović, Snežana, "Hydrothermal carbonization of Miscanthus x giganteus: Structural and fuel properties of hydrochars and organic profile with the ecotoxicological assessment of the liquid phase" in Energy Conversion and Management, 159 (2018):254-263, https://doi.org/10.1016/j.enconman.2018.01.003 ., conv_818 .