200-MW chemical looping combustion based thermal power plant for clean power generation

CATEGORY: METHANE
International Journal of Energy Research, Volume 37, Issue 1, pages 49–58, January 2013
200-MW chemical looping combustion based thermal power plant for clean power generation
Raman Sharma 1, Munish Kumar Chandel 2, Arnaud Delebarre 3, Babu Alappat 1
ramansharma_env@yahoo.com
1 Department of Civil Engineering, Indian Institute of Technology Delhi, New Delhi, India
2 Center on Global Change, Climate Change Policy Partnership, Duke University Durham, Durham, USA
3 École Superieure des Sciences et Technologies de L'Ingénieur de Nancy, Vandoeuvre Lès Nancy Cedex, France
SUMMARY
The present study demonstrates a possible configuration of a 200 MW chemical looping combustion (CLC) system with methane (CH4) as fuel. Iron oxide-based oxygen carriers were used because of its non-toxic nature, low-cost, and wide availability. Authors analyzed the effects of a variety of variables on the design of the system.
For the air reactor (oxidizer), bed mass is independent, and for the fuel reactor (reducer), it decreases with increase in the conversion difference between the air and fuel reactors. On the other hand, the pressure drop in the air reactor is unchanged, whereas for the fuel reactor, it decreases with the same increase of conversion difference between air and fuel reactors. Also, entrained solid mass flow rate from the air to fuel reactor shows a decreasing trend. Bed mass, bed height, pressure drop, and residence time of the bed materials decrease with increase in the conversion rates in the air and fuel reactors. Residence time of bed material in the air and fuel reactor reduces with increase in the temperature of the air reactor.
Free Full Text Source: http://onlinelibrary.wiley.com/doi/10.1002/er.1882/full