AHŞAP NUMUNELERİN PİROLİZİ İLE SENTEZ GAZI ELDESİNDE NEMİN ETKİSİ
Year 2017,
Volume: 6 Issue: 2, 47 - 53, 30.11.2017
Mert Kılınçel
,
Ethem Toklu
,
Mahmut Gür
Abstract
Bu çalışmada belirli nem seviyelerindeki(%5-25) atık
ahşap numuneleri laboratuvar ölçekli bir piroliz reaktöründe oksijensiz olarak
bozundurularak, katı, sıvı ve gaz son ürünler olan sentez gazı, katran ve çar elde
edilmiştir. Piroliz son ürünlerini etkileyen önemli parametrelerden biri olan
nem içeriğindeki değişiminin sentez gazı oluşumuna etkisi incelenmiştir.
Çalışmada kullanılan ahşap numuneler iki aşamalı kırma işlemine tabi tutularak 0,2mm-10mm
boyutlarına kadar küçültülmüştür. Numunelerin piroliz işlemine hazır hale
getirilebilmesi için bir ön kurutma işlemi gerekmektedir. Bu işlem için
kullanılan kurutma ünitesi ihtiyacı olan enerjiyi piroliz ünitesinin atık
ısısından sağlamaktadır. Burada numunelerin verimli kurutulabilmesi için döner
yataklı ve dâhili karıştırma fonksiyonu bulunan, 100-120 oC sıcaklık
değerlerine ulaşabilen bir kurutucu ünitesi kullanılmıştır. Döner kurutucunun
dönme devir hızına değiştirilerek farklı işlem sürelerinde farklı nem
oranlarında numuneler elde edilmiştir. Buradan elde edilen üç farklı nem
içeriğindeki(%5, %15, %20 ve %25) ahşap numuneler 350-450°C arası sıcaklıkta piroliz edilerek elde edilen sentez gazı oluşumları
karşılaştırılmıştır. Piroliz işlemi sonucu ortaya çıkan sentez gazı oluşumları
incelendiğinde nem içeriği düşük numunelerden daha yüksek debide gaz çıkışı
olduğu belirlenmiştir.
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Year 2017,
Volume: 6 Issue: 2, 47 - 53, 30.11.2017
Mert Kılınçel
,
Ethem Toklu
,
Mahmut Gür
References
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