Yıl 2020, Cilt , Sayı 18, Sayfalar 767 - 778 2020-04-15

Oxygen Transfer Ability of Co-Pb Metal Oxides during the Chemical Looping Oxidation of Tuncbilek Lignite
Oxygen Transfer Ability of Co-Pb Metal Oxides during the Chemical Looping Oxidation of Tuncbilek Lignite

Arzu KANCA [1] , Prof.dr. Deniz ÜNER [2]


Bu çalışma, kobalt-kurşun (Co-Pb) karışık metal oksitlerin Tuncbilek linyitlerininin inert ortamda termal bozunması esnasında göstermiş oldukları oksijen transfer yeteneğini belirlemeyi amaçlamaktadır. Bu metal oksitlerin farklı indirgeyici gazlar varlığında indirgenme reaksiyonlarının termodinamik hesaplamaları uygun reaksiyon sıcaklıklarını belirlemek için yapılmıştır. Co-Pb karışık metal oksitler ıslak emdirme yöntemiyle hazırlanmış ve X-ray kırınımı ve Raman spektrometresi ile karakterize edilmiştir. Bu metal oksitlerin oksijen transfer performansları termal gravimetrik analiz (TGA) metoduyla 40-600ºC sıcaklık aralığında azot atmosferinde gerçekleştirilmiştir. TGA sonuçları, oksidasyon etkinliğine dayalı optimum linyit/ Co-Pb mixed oxide oranının 0.11 olduğunu ortaya koymuştur.
The study aims to determine the oxygen transfer ability of cobalt lead (Co-Pb) individual and mixed oxides during the thermal decomposition of Tuncbilek lignite under inert atmosphere. Thermodynamic calculations of reduction reactions were performed to show the favorable reduction temperatures for the different reductive gases. Co and Pb mixed metal oxides were prepared by wet impregnation method and they characterized by X-ray diffractometer and Raman spectroscopy. Oxygen transfer performances of these oxides were evaluated by thermal gravimetric analysis (TGA) in terms of oxidation rates of lignite sample under N2 flows in the range of temperatures between 40 to 600ºC. The results of thermal gravimetric analysis (TGA) indicated that the optimum coal to Co-Pb metal oxides ratio based on oxidation efficiency was 0.11.
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Birincil Dil en
Konular Mühendislik
Bölüm Makaleler
Yazarlar

Orcid: 0000-0001-9110-2691
Yazar: Arzu KANCA (Sorumlu Yazar)
Kurum: Atatürk Üniversitesi
Ülke: Turkey


Orcid: 0000-0001-8585-3691
Yazar: Prof.dr. Deniz ÜNER
Kurum: MIDDLE EAST TECHNICAL UNIVERSITY
Ülke: Turkey


Destekleyen Kurum Devlet Planlama Teşkilatı
Proje Numarası BAP-08-11-DPT-2002K120510 OYP program
Teşekkür Numuneler için TKİ, TGA deneyleri için ODTÜ Kimya Mühendisliği Bölümü uzmanlarından Mihtican Açıkgöz ve karakterizasyonlar için ODTÜ merkez Laboratuvarına teşekkür ederiz.
Tarihler

Yayımlanma Tarihi : 15 Nisan 2020

APA KANCA, A , ÜNER, P . (2020). Oxygen Transfer Ability of Co-Pb Metal Oxides during the Chemical Looping Oxidation of Tuncbilek Lignite. Avrupa Bilim ve Teknoloji Dergisi , (18) , 767-778 . DOI: 10.31590/ejosat.706923