Experimental results of underground coal gasification of Turkish lignite in an ex-situ reactor

Mesut Gur*, Nurdil Eskin, Hasancan Okutan, Ahmet Arısoy, Erhan Böke, Ünal Altıntaş, Ahmet Yıldız Oğuz Büyükşirin, E. Deniz Canbaz, Olgu Yıldırım

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29 Atıf (Scopus)

Özet

In this study the characteristics of Turkish lignite for underground coal gasification process was experimentally investigated in a laboratory scale ex situ reactor. A rectangular prism shaped ex-situ reactor having 0.65 × 1.01 × 2.07 m external dimensions was built and used in the experiments, placing lignite blocks and their surrounding strata in it. Coal gasification tests were performed for the Malkara Pirinççesme (Turkey) lignite using air, pure oxygen and steam. The Malkara Pirinççesme lignite is characterized by its high ash, low moisture and high volatile contents. During the gasification experiments, temperature distributions inside the coal seams and syngas flow rates in the outlet were measured. Syngas compositions were analysed using MRU Varioplus Syngas analyser and Agilent 7890B gas chromatograph. Experiments were divided into four stages; (i) the oxygen gasification stage, (ii) the oxygen-air gasification stage, (iii) the oxygen-steam stage, and (iv) the oxygen-air-steam stage. Syngas produced during the oxygen gasification stage was characterized by its high calorific values of 6–9 MJ/Nm3, carbon monoxide contents of 23–33 (vol)%, and hydrogen contents of 20–30 (vol)%. The results show that syngas produced during the oxygen gasification stage of our experiments has much higher carbon monoxide and lower hydrogen contents than those in the literature.

Orijinal dilİngilizce
Sayfa (başlangıç-bitiş)997-1006
Sayfa sayısı10
DergiFuel
Hacim203
DOI'lar
Yayın durumuYayınlandı - 2017

Bibliyografik not

Publisher Copyright:
© 2017 Elsevier Ltd

Finansman

MG gratefully acknowledges the support of TÜBİTAK-ARDEB.

FinansörlerFinansör numarası
TÜBİTAK-ARDEB

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