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A Simulation Study for Fluidized Bed Combustion of Petroleum Coke With CO2 Capture

[+] Author Affiliations
Jinsheng Wang, Edward J. Anthony

Natural Resources Canada, Ottawa, ON, Canada

J. Carlos Abanades

Instituto de Carboquímica (CSIC), Zaragoza, Spain

Paper No. FBC2003-169, pp. 603-606; 4 pages
doi:10.1115/FBC2003-169
From:
  • 17th International Conference on Fluidized Bed Combustion
  • 17th International Conference on Fluidized Bed Combustion
  • Jacksonville, Florida, USA, May 18–21, 2003
  • Conference Sponsors: Advanced Energy Systems
  • ISBN: 0-7918-3680-0 | eISBN: 0-7918-3675-4
  • Copyright © 2003 by ASME

abstract

Petroleum coke is regarded as a difficult fuel because of its high sulphur content and low volatile content. However, its low price and increased production, means that there is a powerful economic stimulus to use it for power generation. In this work, a process simulation has been performed as part of a feasibility study on the utilization of petroleum coke for power generation with low-cost CO2 capture. The proposed system employs a pressurized fluidized bed combustor and a calciner. In the combustor itself, the petroleum coke is burned and most of the CO2 generated is captured by a CaO sorbent under pressurized condition to form CaCO3 . The CaCO3 is transported into the calciner where limited proportion of the petroleum coke is burned with pure O2 , and calcines the spent sorbent back into CaO and CO2 . A nearly pure CO2 stream is obtained from the calciner for subsequent disposal or utilization. The predicted overall efficiency of the combustion is near 40%. The proposed system would also be suitable for firing other high carbon and low ash fuel, such as anthracite.

Copyright © 2003 by ASME

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