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conferenceseries
.com
Volume 8, Issue 4 (Suppl)
J Pet Environ Biotechnol, an open access journal
ISSN: 2157-7463
Oil Gas Expo 2017
July 13-14, 2017
Oil and Gas
July 13-14, 2017 Berlin, Germany
3
rd
International Conference and Expo on
Oil shale combustion under oxy-fuel conditions
Leema Abd Al-Rahman Al-Makhadmeh
1, 2
, Maier J
3
and
Scheffknecht G
3
1
Al-Hussein Bin Talal University, Jordan
2
Jordan University of Science and Technology, Jordan
3
University of Stuttgart, Germany
D
irect combustion of Jordanian oil shale under oxy-fuel conditions was investigated. Unstaged and staged air-firing as well
as combustion at 27% O
2
/73% CO
2
(OF27) was conducted successfully. A 20 kW vertical reactor was used at a combustion
temperature of 1200ºC. Oil shale-N conversion rate to NO is higher during unstaged air-firing than oxy-fuel combustion; they are
27% and 15% for air-firing and OF27 combustion, respectively. NOx emission reduced efficiently by adopting staged combustion
technology under oxy-fuel conditions as well as air-firing. In addition, the reduction of simulated recycled NO has been investigated.
The actual situation has been simulated by injecting NO in the reactor through the burner during OF27 combustion. The reduction
of the injected NO is more efficient with staging compared to unstaged combustion mode; 100% reduction of the injected NO during
staged OF27 combustion is registered while for unstaged OF27 combustion it ranges from 57% to 65%. The high sulfur content in
Jordanian oil shale is considered one of the biggest challenges for its utilization. The oil shale-S conversion rate to SO
2
is lower during
unstaged OF27 combustion compared to air-firing; they are 69% and 49% for air-firing and OF27 combustion, respectively. For
both unstaged combustion modes, direct limestone injection at different molar Ca/S ratios has been investigated; SO
2
emissions are
reduced significantly by direct limestone injection. At Ca/S molar ratio of 3, the desulfurization efficiencies are 100% and 95% for
OF27 combustion and air-firing, respectively.
Figure-1:
20 kW Vertical Reactor.
Biography
Leema Abd Al-Rahman Al-Makhadmeh is currently working as an Associate Professor at the Department of Environmental Engineering, Al-Hussein Bin Talal
University and Department of Chemical Engineering, Jordan University of Science and Technology, Jordan. She has completed her BSc and MS degrees from
Jordan University of Science and Technology and PhD degree from Stuttgart University, Germany. Her research areas are oxy-fuel combustion, pyrolysis and char
combustion, emission control technologies (NOx, SOx, PM) and others.
lamakhadmeh@just.edu.joLeema Abd Al-Rahman Al-Makhadmeh et al., J Pet Environ Biotechnol 2017, 8:4 (Suppl)
DOI: 10.4172/2157-7463-C1-034