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Journals / Karadeniz Fen Bilimleri Dergisi / 2022 / Cilt: 12 - Sayı: 1

Investigation of Torrefaction and Combustion Behavior of Hazelnut Shell

Fındık Kabuğunun Torrefaksiyon ve Yanma davranışının İncelenmesi

Bedriye AYDEMİR
Melek YILGIN
Pages
51–65
Publication Date
2022-10-19
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Torrefied pellets of carbon combustion rates were generally lower than those of raw pellets and decreased with combustion temperature as well as torrefaction severity.

📌 3 Key Takeaways

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Objective & Hypothesis:Torrefaction is a promising technique to obtain coal-like solids which can be incorporated into today’s power systems.
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Key Findings & Data:Torrefaction experiments were made as a poly-particles bed in the basket under nitrogen flow and at 200, 240 and 280 oC temperatures corresponding to light, mild and severe conditions, respectively.
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Conclusion & Impact:Torrefied pellets of carbon combustion rates were generally lower than those of raw pellets and decreased with combustion temperature as well as torrefaction severity.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Fındık kabuğu · Torrefaksiyon · Yakma

Abstract

Torrefaction is a promising technique to obtain coal-like solids which can be incorporated into today’s power systems. In this study, torrefaction of hazelnut shell and their combustion behaviour were investigated using a vertical furnace with a wire mesh basket and necessary equipments. Torrefaction experiments were made as a poly-particles bed in the basket under nitrogen flow and at 200, 240 and 280 oC temperatures corresponding to light, mild and severe conditions, respectively. It was observed that the solid product yield decreased with the torrefaction temperature and the fixed carbon and HHV of the solid product increased. Combustion experiments, however, were carried out by recording mass of single raw or torrefied burning pellet under natural convection airflow at 550, 650 and 750 oC temperatures. Volatiles ignition times of torrefied shells were affected by their moisture contents. This effect lessened with increasing temperatures due to faster heating of pellets. Torrefied pellets of carbon combustion rates were generally lower than those of raw pellets and decreased with combustion temperature as well as torrefaction severity.

Özet

Torrefaksiyon, günümüzün güç sistemlerine dahil edilebilecek kömür benzeri katılar elde etmek için umut verici bir tekniktir. Bu çalışmada, fındık kabuğunun tel örgü sepetli dikey bir fırın ve gerekli ekipmanlar kullanılarak torrefaksiyonu ve yanma davranışı incelenmiştir. Torrefaksiyon deneyleri, sepet içinde azot akışı altında ve sırasıyla hafif, orta ve şiddetli koşullara karşılık gelen 200, 240 ve 280 oC sıcaklıklarda poli-parçacık yatağı olarak yapılmıştır. Bununla birlikte, yanma deneyleri, 550, 650 ve 750 oC sıcaklıklarda doğal konveksiyon hava akımı altında yanan tek bir ham veya torrefiye peletin kütlesi kaydedilerek gerçekleştirilmiştir. Katı ürün veriminin torrefaksiyon sıcaklığı ile azaldığı, katı ürünün sabit karbon ve üst ısı değerinin (ÜID) arttığı görüldü. Torrefiye kabukların uçucu tutuşma süreleri nem içeriklerinden etkilenmiştir. Bu etki, peletlerin daha hızlı ısıtılması nedeniyle artan sıcaklıklarla azaldı. Torrefiye peletlerin karbon yanma hızları genellikle ham peletlerinkinden daha düşüktü ve yanma sıcaklığının yanı sıra torrefaksiyon şiddeti ile azaldı.

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Cite This Article

AYDEMİR, B., YILGIN, M. (2022). Investigation of Torrefaction and Combustion Behavior of Hazelnut Shell. Karadeniz Fen Bilimleri Dergisi, Cilt: 12 - Sayı: 1, 51–65. https://ajindex.com/articles/570358

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References (9)

  1. Agbor, V. B., Cicek, N., Sparling, R., Berlin, A., and Levin, D. B., (2011). Biomass Pretreatment: Fundamentals toward application. Biotechnology Advances, 29, 675-685. https://doi.org/10.1016/j.biotechadv.2011.05.005
  2. Arias Rozada, B., Pevida García, C., Fermoso Domínguez, J., González Plaza, M., Rubiera González, F., and Pis Martínez, J. J., (2008). Influence of torrefaction on the grindability and reactivity of woody biomass. Fuel Processing Technology, 89, 169-175. https://doi.org/10.1016/j.fuproc.2007.09.002
  3. Arshanitsa, A., Akishin, Y., Zile, E., Dizhbite, T., Solodovnik, V., and Telysheva, G. (2016). Microwave treatment combined with conventional heating of plant biomass pellets in a rotated reactor as a high rate process for solid biofuel manufacture. Renewable Energy, 91, 386-396. https://doi.org/10.1016/j.renene.2016.01.080
  4. Basu, P., Sadhukhan, A. K., Gupta, P., Rao, S., Dhungana, A., and Acharya, B., (2014). An experimental and theoretical investigation on torrefaction of a large wet wood particle. Bioresource technology, 159, 215-222. https://doi.org/10.1016/j.biortech.2014.02.105
  5. Bilgic, E., Yaman, S., Haykiri-Acma, H., and Kucukbayrak, S.,(2016). Is torrefaction of polysaccharides-rich biomass equivalent to carbonization of lignin-rich biomass?. Bioresource technology, 200, 201-207. https://doi.org/10.1016/j.biortech.2015.10.032
  6. Chen, W. H., and Kuo, P. C., (2010). A study on torrefaction of various biomass materials and its impact on lignocellulosic structure simulated by a thermogravimetry. Energy, 35, 2580-2586. https://doi.org/10.1016/j.energy.2010.02.054
  7. Chen, W. H., Ye, S. C., and Sheen, H. K. (2012). Hydrothermal carbonization of sugarcane bagasse via wet torrefaction in association with microwave heating. Bioresource technology, 118, 195-203. https://doi.org/10.1016/j.biortech.2012.04.101
  8. Chen, W. H., Peng, J., and Bi, X. T., (2015a). A state-of-the-art review of biomass torrefaction, densification and applications. Renewable and Sustainable Energy Reviews, 44, 847-866. https://doi.org/10.1016/j.rser.2014.12.039
  9. Chen W.H., Liu, S.H., Juang, T.T., Tsai, C.M., Zhuang, Y.Q., (2015b). Characterization of solid and liquid products from bamboo torrefaction. Applied Energy, 160, 829–835. https://doi.org/10.1016/j.apenergy.2015.03.022 Dudyński, M., van Dyk, J. C., Kwiatkowski, K., and Sosnowska, M., (2015). Biomass gasification: Influence of torrefaction on syngas production and tar formation. Fuel processing technology, 131, 203-212. https://d