Co-current combustion of oil shale - Part 1: Characterization of the solid and gaseous products

FUEL

卷:89

Article

Martins, M. F.¹  Salvador, S.¹  Thovert, J. -F.²  Debenest, G.^3,4 

[1] Univ Toulouse, MINES ALBI, RAPSODEE UMR CNRS 2392, F-81013 Albi, France

[2] Ecole Natl Super Mecan & Aerotech, LCD, F-86961 Futuroscope, France

[3] Univ Toulouse, INPT, UPS, IMFT, F-31400 Toulouse, France

[4] CNRS, IMFT, F-31400 Toulouse, France

关键词: Oil shale;    Combustion front;    Chemical characterization;   

DOI  :  10.1016/j.fuel.2009.06.036

来源: Elsevier

【 摘 要 】

Co-current combustion front propagation in a bed of crushed oil shale ( OS) leads to the production of liquid oil, of a flue gas and of a solid residue. The objective of this paper was to provide a detailed chemical characterization of Timahdit oil shale and of its smoldering combustion products. The amount of fixed carbon (FC) formed during devolatilization is measured at 4.7% of the initial mass of oil shale whatever the heating rate in the range 50-900 K min (1). The combustion of oil shale was operated using a mix of 75/25 wt. of OS/sand with an air supply of 1460 l min (1) m (2). In these conditions, not all the FC is oxidized at the passage of the front, but 88% only, with a partitioning of 56.5% into CO and the rest into CO2. A calorific gas with a lower calorific value of 54 kJ mol (1) is produced. Approximately 52% of the organic matter from OS is recovered as liquid oil. The front decarbonates 83% of carbonates. (C) 2009 Elsevier Ltd. All rights reserved.

【 授权许可】

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