dujof Düzce Üniversitesi Orman Fakültesi Ormancılık Dergisi 2148-7871 2148-7855 Duzce University 10.58816/duzceod.1736400 Forestry Biomass and Bioproducts Orman Biyokütlesi ve Biyoürünleri Orman Biyokütlelerinin Mikrodalga Destekli Piroliz Sürecindeki Dielektrik Özelliklerinin Rolü The Role of Dielectric Properties in Microwave-Assisted Pyrolysis of Forest Biomass https://orcid.org/0000-0003-0909-2514 Akça Özlem NECMETTİN ERBAKAN ÜNİVERSİTESİ https://orcid.org/0009-0000-5024-6517 Akgül Mehmet NECMETTİN ERBAKAN ÜNİVERSİTESİ 12 30 2025 21 2 158 170 07 07 2025 09 24 2025 Copyright © 2005, Düzce University Faculty of Forestry Journal of Forestry 2005 Düzce University Faculty of Forestry Journal of Forestry

Mikrodalga Destekli Piroliz (MAP), orman kökenli veya lignoselülozik biyokütlenin daha değerli biyo-bazlı ürünlere dönüştürülmesinde umut vadeden bir termokimyasal dönüşüm yöntemidir. MAP’in verimliliği büyük ölçüde, kullanılan biyokütlenin dielektrik özellikleriyle belirlenmektedir. Özellikle dielektrik sabiti (ε′), dielektrik kayıp faktörü (ε″) ve kayıp teğet değeri (tan δ) gibi parametreler, mikrodalga enerjisinin ısıya ne kadar etkili dönüştürüldüğünü belirleyen temel faktörlerdir. Bu çalışma, farklı orman biyokütlesi türlerinin (sert ağaçlar ve yumuşak ağaçlar) dielektrik özelliklerine odaklanmakta ve bu özelliklerin mikrodalga piroliz verimliliği ile ürün çıktıları üzerindeki etkilerini incelemektedir. Ayrıca çalışmada, katalizör kullanımı, katkı maddeleri ve biyokütle harmanlama yöntemlerinin ürün seçiciliği, ısınma hızı ve ürün verimi üzerindeki etkilerini ortaya koymak da amaçlanmaktadır.

Microwave-assisted pyrolysis (MAP) is a promising thermochemical conversion method for converting forest/lignocellulosic biomass into valuable bio-based products. The efficiency of MAP strongly is governed by the dielectric properties of the feedstock, particularly the dielectric constant (ε′), dielectric loss factor (ε″), and loss tangent (tan δ), which govern how effectively microwave energy is converted into heat. This study focuses on the dielectric properties of different types of forest biomass (hardwoods, softwoods) and their effects on microwave pyrolysis efficiency and yield. The study also aims to show how the usage of catalysts, additives, and feedstock blending affects product selectivity, heating rates, and product yield.

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