IDEAS home Printed from https://ideas.repec.org/a/eee/energy/v263y2023ipes0360544222029309.html
   My bibliography  Save this article

Impact of salt composition and temperature on low-temperature torrefaction of pine in molten nitrate salts

Author

Listed:
  • Backer, Michael
  • Gladen, Adam

Abstract

An experimental investigation of torrefaction of pine in molten, nitrate salt blends was conducted. Five blends, consisting of varying amounts of LiNO3 (20–40 wt%), NaNO3 (0–20 wt%), and KNO3 (50–70 wt%), and torrefaction temperatures from 210 to 240 °C were investigated and compared to torrefaction in nitrogen. The effect of temperature and salt blend composition on the appearance, higher heating value (HHV), proximate analysis (volatiles, fixed carbon, and ash), and mass yields are investigated. The results show that the molten salts effectively catalyze the reaction. At low temperatures, there is significant increase in the fixed carbon content and HHV compared to the raw pine. For example, at 225 °C and depending on the salt composition, the fixed carbon content increases by 51–166% and the HHV by 6–20% relative to raw. Compared to nitrogen torrefaction at equivalent torrefaction temperatures, salt-torrefied pine is more severely torrefied and is more sensitive to temperature. LiNO3 has the strongest the catalytic effect. Blends with higher LiNO3 content result in more severely torrefied biomass at a given temperature than other blends regardless of changes in sodium and potassium content. NaNO3 content is the next most influential component salt followed by KNO3.

Suggested Citation

  • Backer, Michael & Gladen, Adam, 2023. "Impact of salt composition and temperature on low-temperature torrefaction of pine in molten nitrate salts," Energy, Elsevier, vol. 263(PE).
    • Handle: RePEc:eee:energy:v:263:y:2023:i:pe:s0360544222029309
    DOI: 10.1016/j.energy.2022.126044
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0360544222029309
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.energy.2022.126044?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    References listed on IDEAS

    as
    1. Bach, Quang-Vu & Skreiberg, Øyvind & Lee, Chul-Jin, 2017. "Process modeling and optimization for torrefaction of forest residues," Energy, Elsevier, vol. 138(C), pages 348-354.
    2. Chew, J.J. & Doshi, V., 2011. "Recent advances in biomass pretreatment – Torrefaction fundamentals and technology," Renewable and Sustainable Energy Reviews, Elsevier, vol. 15(8), pages 4212-4222.
    3. Batidzirai, B. & Mignot, A.P.R. & Schakel, W.B. & Junginger, H.M. & Faaij, A.P.C., 2013. "Biomass torrefaction technology: Techno-economic status and future prospects," Energy, Elsevier, vol. 62(C), pages 196-214.
    4. He, Xiao & Zeng, Kuo & Xie, Yingpu & Flamant, Gilles & Yang, Haiping & Yang, Xinyi & Nzihou, Ange & Zheng, Anqing & Ding, Zhi & Chen, Hanping, 2019. "The effects of temperature and molten salt on solar pyrolysis of lignite," Energy, Elsevier, vol. 181(C), pages 407-416.
    5. Rizkiana, Jenny & Guan, Guoqing & Widayatno, Wahyu Bambang & Hao, Xiaogang & Wang, Zhongde & Zhang, Zhonglin & Abudula, Abuliti, 2015. "Oil production from mild pyrolysis of low-rank coal in molten salts media," Applied Energy, Elsevier, vol. 154(C), pages 944-950.
    6. Xie, Yingpu & Zeng, Kuo & Flamant, Gilles & Yang, Haiping & Liu, Nian & He, Xiao & Yang, Xinyi & Nzihou, Ange & Chen, Hanping, 2019. "Solar pyrolysis of cotton stalk in molten salt for bio-fuel production," Energy, Elsevier, vol. 179(C), pages 1124-1132.
    7. Hathaway, Brandon J. & Honda, Masanori & Kittelson, David B. & Davidson, Jane H., 2013. "Steam gasification of plant biomass using molten carbonate salts," Energy, Elsevier, vol. 49(C), pages 211-217.
    8. Jin, Gong & Iwaki, Hiroyuki & Arai, Norio & Kitagawa, Kuniyuki, 2005. "Study on the gasification of wastepaper/carbon dioxide catalyzed by molten carbonate salts," Energy, Elsevier, vol. 30(7), pages 1192-1203.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Arnob Das & Susmita Datta Peu, 2022. "A Comprehensive Review on Recent Advancements in Thermochemical Processes for Clean Hydrogen Production to Decarbonize the Energy Sector," Sustainability, MDPI, vol. 14(18), pages 1-42, September.
    2. Zeng, Kuo & Li, Jun & Xie, Yingpu & Yang, Haiping & Yang, Xinyi & Zhong, Dian & Zhen, Wanxin & Flamant, Gilles & Chen, Hanping, 2020. "Molten salt pyrolysis of biomass: The mechanism of volatile reforming and pyrolysis," Energy, Elsevier, vol. 213(C).
    3. Sánchez, M. & Clifford, B. & Nixon, J.D., 2018. "Modelling and evaluating a solar pyrolysis system," Renewable Energy, Elsevier, vol. 116(PA), pages 630-638.
    4. Xie, Yingpu & Zeng, Kuo & Flamant, Gilles & Yang, Haiping & Liu, Nian & He, Xiao & Yang, Xinyi & Nzihou, Ange & Chen, Hanping, 2019. "Solar pyrolysis of cotton stalk in molten salt for bio-fuel production," Energy, Elsevier, vol. 179(C), pages 1124-1132.
    5. Wei, Yi & Lu, Licong & Zhang, Xudong & Ji, Jianbing, 2022. "Hydrogen produced at low temperatures by electrochemically assisted pyrolysis of cellulose in molten carbonate," Energy, Elsevier, vol. 254(PC).
    6. Jorge Miguel Carneiro Ribeiro & Radu Godina & João Carlos de Oliveira Matias & Leonel Jorge Ribeiro Nunes, 2018. "Future Perspectives of Biomass Torrefaction: Review of the Current State-Of-The-Art and Research Development," Sustainability, MDPI, vol. 10(7), pages 1-17, July.
    7. Gai, Chao & Dong, Yuping & Zhang, Tonghui, 2014. "Downdraft gasification of corn straw as a non-woody biomass: Effects of operating conditions on chlorides distribution," Energy, Elsevier, vol. 71(C), pages 638-644.
    8. Li, Jun & Xie, Yingpu & Zeng, Kuo & Flamant, Gilles & Yang, Haiping & Yang, Xinyi & Zhong, Dian & Du, Zhenyi & Chen, Hanping, 2020. "Biomass gasification in molten salt for syngas production," Energy, Elsevier, vol. 210(C).
    9. Wei, Yi & Xie, Jiale & Shen, Chaoyue & Lu, Licong & Ji, Jianbing, 2020. "Electrochemically assisted pyrolysis of rice straw in molten carbonates," Renewable Energy, Elsevier, vol. 159(C), pages 929-937.
    10. Manuel Uche-Soria & Carlos Rodríguez-Monroy, 2019. "An Efficient Waste-To-Energy Model in Isolated Environments. Case Study: La Gomera (Canary Islands)," Sustainability, MDPI, vol. 11(11), pages 1-21, June.
    11. Beatriz M. Paredes-Sánchez & José P. Paredes-Sánchez & Paulino J. García-Nieto, 2020. "Energy Multiphase Model for Biocoal Conversion Systems by Means of a Nodal Network," Energies, MDPI, vol. 13(11), pages 1-13, May.
    12. Wilk, Małgorzata & Magdziarz, Aneta & Kalemba, Izabela, 2015. "Characterisation of renewable fuels' torrefaction process with different instrumental techniques," Energy, Elsevier, vol. 87(C), pages 259-269.
    13. Doddapaneni, Tharaka Rama Krishna C. & Praveenkumar, Ramasamy & Tolvanen, Henrik & Rintala, Jukka & Konttinen, Jukka, 2018. "Techno-economic evaluation of integrating torrefaction with anaerobic digestion," Applied Energy, Elsevier, vol. 213(C), pages 272-284.
    14. Rodat, Sylvain & Abanades, Stéphane & Boujjat, Houssame & Chuayboon, Srirat, 2020. "On the path toward day and night continuous solar high temperature thermochemical processes: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 132(C).
    15. Wilk, Małgorzata & Magdziarz, Aneta & Kalemba, Izabela & Gara, Paweł, 2016. "Carbonisation of wood residue into charcoal during low temperature process," Renewable Energy, Elsevier, vol. 85(C), pages 507-513.
    16. Granados, D.A. & Ruiz, R.A. & Vega, L.Y. & Chejne, F., 2017. "Study of reactivity reduction in sugarcane bagasse as consequence of a torrefaction process," Energy, Elsevier, vol. 139(C), pages 818-827.
    17. Fan, Yuyang & Li, Luwei & Tippayawong, Nakorn & Xia, Shengpeng & Cao, Fengzhu & Yang, Xingwei & Zheng, Anqing & Zhao, Zengli & Li, Haibin, 2019. "Quantitative structure-reactivity relationships for pyrolysis and gasification of torrefied xylan," Energy, Elsevier, vol. 188(C).
    18. Maja Ivanovski & Aleksandra Petrovič & Darko Goričanec & Danijela Urbancl & Marjana Simonič, 2023. "Exploring the Properties of the Torrefaction Process and Its Prospective in Treating Lignocellulosic Material," Energies, MDPI, vol. 16(18), pages 1-20, September.
    19. Lasek, Janusz A. & Kopczyński, Marcin & Janusz, Marcin & Iluk, Andrzej & Zuwała, Jarosław, 2017. "Combustion properties of torrefied biomass obtained from flue gas-enhanced reactor," Energy, Elsevier, vol. 119(C), pages 362-368.
    20. Krochmalny, Krystian & Niedzwiecki, Lukasz & Pelińska-Olko, Ewa & Wnukowski, Mateusz & Czajka, Krzysztof & Tkaczuk-Serafin, Monika & Pawlak-Kruczek, Halina, 2020. "Determination of the marker for automation of torrefaction and slow pyrolysis processes – A case study of spherical wood particles," Renewable Energy, Elsevier, vol. 161(C), pages 350-360.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eee:energy:v:263:y:2023:i:pe:s0360544222029309. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Catherine Liu (email available below). General contact details of provider: http://www.journals.elsevier.com/energy .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.