Orman Biyokütlelerinin Mikrodalga Destekli Piroliz Sürecindeki Dielektrik Özelliklerinin Rolü

Yıl 2025, Cilt: 21 Sayı: 2, 158 - 170, 30.12.2025

Özlem Akça , Mehmet Akgül

https://doi.org/10.58816/duzceod.1736400

Öz

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.

Anahtar Kelimeler

Dielektrik özellikleri , MP , Tan δ , Isıl verim , Orman biyokütlesi

The Role of Dielectric Properties in Microwave-Assisted Pyrolysis of Forest Biomass

Öz

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.

Anahtar Kelimeler

Dielectric properties , MAP , Tan δ , Heating efficiency , Forest biomass

Kaynakça

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