Co-pyrolysis of Polyethylene and Sawmills Powder: Influence of Polyethylene on Pyrolysis Product Value

Yıl 2017, Cilt:6 ICOCEE Özel Sayı, 306 - 313, 27.12.2017

Sinem Uğuz Tolga Ayeri , Yüksel Ardalı

https://doi.org/10.17100/nevbiltek.322387

Cited By: 1

Öz

The aim of this study was to
investigate the effect on plastics during co-pyrolysis with biomass. Pyrolysis
of sawmills powders (SP), polyethylene (PE) and their mixtures was carried out
in a semi-batch reactor with varying temperatures at 550 °C and 600 °C. This
work is a preliminary study for the development of a co-pyrolysis process of
plastic wastes with biomass with the aim to produce an alternative liquid fuel
for industrial use. Experiments were carried out with plastics and biomass to
highlight the interactions occurring between a plastic and a biomass during
their co-pyrolysis. It appears that the main decomposition event of each
component takes place at higher temperatures when the components are mixed than
when they are alone, possibly because the two components stabilize each other
during their co-pyrolysis. These interactions depend on the nature of the
plastics and the biomass. In addition, co-pyrolysis experiments were led in a
lab-scale reactor using a mixture of plastic wastes and biomass. The influence
of some key operating parameters on the outcome of the process was analysed.
Hence, this co-pyrolysis process could be economically viable, provided heat
losses are addressed carefully when designing an industrial reactor. The
maximum liquid product yields for the pyrolysis of SP and PE obtained were 35,17%
and 61,00%, respectively, whereas the maximum liquid product yield for SP/PE
co- pyrolysis was 46,05% at 550 °C with 1:1 blend ratio.

Anahtar Kelimeler

Alternative Energy, Elemental Analysis, Pyrolysis, Waste Reduction

Polietilen ve Kereste Tozlarının Ko-pirolizi: Piroliz Ürün Değeri Üzerinde Polietilenin Etkisi

Öz

Bu
çalışmanın amacı biyokütlenin kopiroliz sırasında plastikler üzerindeki
etkisini araştırmaktır. Kereste tozlarının (SP), polietilenin (PE) ve bunların
karışımlarının pirolizi, 550 °C ve 600 °C değişen sıcaklıklarda yarı-kesikli
bir reaktörde gerçekleştirildi. Bu çalışma, endüstriyel kullanım için
alternatif bir sıvı yakıt üretmek amacıyla, biyolojik kütle ile plastik
atıkların kopiroliz işlemini geliştirilmesi için bir ön çalışmadır.
Bileşenlerin kopirolizi sırasında bir plastik ile bir biyokütle arasında
meydana gelen etkileşimleri vurgulamak için, plastikler ve biyokütle ile
deneyler gerçekleştirildi. Her bir bileşenin ana parçalanma olayı, bileşenlerin
beraber olduğunda, yalnız olmalarına göre daha yüksek sıcaklıklarda
gerçekleştiği görüldü ve bunun nedeninin iki bileşen kopiroliz sırasında
birbirlerini dengelediği düşünüldü. Bu
etkileşimlerin plastiklere ve biyokütleye bağlı olduğu çıkarımı yapıldı.
Ayrıca, biyokütle ve plastik atıkların karışımı kullanılarak laboratuvar
ölçekli bir reaktörde piroliz deneyleri yapıldı. Bazı önemli işletme
parametrelerinin sürecin sonucu üzerindeki etkisi de analiz edildi. Bu nedenle,
bu kopiroliz işleminin, bir endüstriyel reaktör tasarlanırken ısı kayıplarına
dikkat edilmesi koşuluyla ekonomik açıdan uygulanabilir olduğu görüldü. Elde
edilen SP ve PE'nin pirolizi için maksimum sıvı ürün verimi sırasıyla % 35,17
ve % 61,00 iken, SP ve PE ortak pirolizi için maksimum sıvı ürün verimi 1:1
karışım oranında ve 550 °C'de % 46,05 sonucuna ulaşıldı. 

Anahtar Kelimeler

Alternatif Enerji, Element Analizi, Piroliz, Atık Azaltma

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