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Energy recovery from pyrolysis and gasification of mangrove

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  • Ahmed, I.
  • Jangsawang, W.
  • Gupta, A.K.

Abstract

Mangrove is a biomass material that grows in wetland sea waters and is often used to produce charcoal due to its unique characteristics of long and sustained burning and negligible residue. High temperature pyrolysis has been conducted for mangrove biomass in a laboratory scale semi-batch reactor. The effect of reactor temperature on syngas yield and syngas characteristics has been investigated. Reactor temperature was varied from 600 to 900°C in 100°C intervals. The increase in reactor temperature resulted in increased syngas yield, hydrogen yield and energy yield. Evolutionary behavior of the syngas characteristics has also been investigated. The increase in reactor temperature increased the peak value of syngas flow rate, hydrogen flow rate and output power. The increase in reactor temperature decreased the time duration of pyrolysis. Cumulative yield of syngas, hydrogen and energy was calculated based on the time dependent relationship. Higher reactor temperatures shortened the time duration required for 99% release of syngas, hydrogen and energy. For example, time duration required for 99% yield of hydrogen was approximately 73min at 600°C and only about 26min at 900°C. Required time duration for 99% yield of energy was ∼62min at 600°C and ∼15min at 900°C. The gasification of the same material at 900°C has been carried out to determine the role of gasifying agent on the fate of material and resulting syngas properties. The results showed gasification yielded more syngas, hydrogen and energy than that obtained from pyrolysis.

Suggested Citation

  • Ahmed, I. & Jangsawang, W. & Gupta, A.K., 2012. "Energy recovery from pyrolysis and gasification of mangrove," Applied Energy, Elsevier, vol. 91(1), pages 173-179.
    • Handle: RePEc:eee:appene:v:91:y:2012:i:1:p:173-179
    DOI: 10.1016/j.apenergy.2011.08.028
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    References listed on IDEAS

    as
    1. Ahmed, I. & Gupta, A.K., 2009. "Syngas yield during pyrolysis and steam gasification of paper," Applied Energy, Elsevier, vol. 86(9), pages 1813-1821, September.
    2. Ahmed, I. & Gupta, A.K., 2009. "Evolution of syngas from cardboard gasification," Applied Energy, Elsevier, vol. 86(9), pages 1732-1740, September.
    3. Ahmed, I. & Gupta, A.K., 2009. "Characteristics of cardboard and paper gasification with CO2," Applied Energy, Elsevier, vol. 86(12), pages 2626-2634, December.
    4. Ahmed, I.I. & Gupta, A.K., 2010. "Pyrolysis and gasification of food waste: Syngas characteristics and char gasification kinetics," Applied Energy, Elsevier, vol. 87(1), pages 101-108, January.
    5. Ahmed, I.I. & Nipattummakul, N. & Gupta, A.K., 2011. "Characteristics of syngas from co-gasification of polyethylene and woodchips," Applied Energy, Elsevier, vol. 88(1), pages 165-174, January.
    6. Nipattummakul, Nimit & Ahmed, Islam & Kerdsuwan, Somrat & Gupta, Ashwani K., 2010. "High temperature steam gasification of wastewater sludge," Applied Energy, Elsevier, vol. 87(12), pages 3729-3734, December.
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    Cited by:

    1. Zeng, Kuo & Gauthier, Daniel & Li, Rui & Flamant, Gilles, 2015. "Solar pyrolysis of beech wood: Effects of pyrolysis parameters on the product distribution and gas product composition," Energy, Elsevier, vol. 93(P2), pages 1648-1657.
    2. Ahmed, I.I. & Gupta, A.K., 2013. "Experiments and stochastic simulations of lignite coal during pyrolysis and gasification," Applied Energy, Elsevier, vol. 102(C), pages 355-363.
    3. Wang, Zhiwei & Burra, Kiran G. & Zhang, Mengju & Li, Xueqin & He, Xiaofeng & Lei, Tingzhou & Gupta, Ashwani K., 2020. "Syngas evolution and energy efficiency in CO2-assisted gasification of pine bark," Applied Energy, Elsevier, vol. 269(C).

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