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Autothermal two-stage gasification of low-density waste-derived fuels

Author

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  • Hamel, Stefan
  • Hasselbach, Holger
  • Weil, Steffen
  • Krumm, Wolfgang

Abstract

In order to increase the efficiency of waste utilization in thermal conversion processes, pre-treatment is advantageous. With the Herhof Stabilat® process, residual domestic waste is upgraded to waste-derived fuel by means of biological drying and mechanical separation of inerts and metals. The dried and homogenized waste-derived Stabilat® fuel has a relatively high calorific value and contains high volatile matter which makes it suitable for gasification. As a result of extensive mechanical treatment, the Stabilat® produced is of a fluffy appearance with a low density. A two-stage gasifier, based on a parallel-arranged bubbling fluidized bed and a fixed bed reactor, has been developed to convert Stabilat® into hydrogen-rich product gas. This paper focuses on the design and construction of the configured laboratory-scale gasifier and experience with its operation. The processing of low-density fluffy waste-derived fuel using small-scale equipment demands special technical solutions for the core components as well as for the peripheral equipment. These are discussed here. The operating results of Stabilat® gasification are also presented.

Suggested Citation

  • Hamel, Stefan & Hasselbach, Holger & Weil, Steffen & Krumm, Wolfgang, 2007. "Autothermal two-stage gasification of low-density waste-derived fuels," Energy, Elsevier, vol. 32(2), pages 95-107.
    • Handle: RePEc:eee:energy:v:32:y:2007:i:2:p:95-107
    DOI: 10.1016/j.energy.2006.03.017
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    Cited by:

    1. Zhou, Chunguang & Zhang, Qinglin & Arnold, Leonie & Yang, Weihong & Blasiak, Wlodzimierz, 2013. "A study of the pyrolysis behaviors of pelletized recovered municipal solid waste fuels," Applied Energy, Elsevier, vol. 107(C), pages 173-182.
    2. Zeng, Xi & Wang, Fang & Li, Hongling & Wang, Yin & Dong, Li & Yu, Jian & Xu, Guangwen, 2014. "Pilot verification of a low-tar two-stage coal gasification process with a fluidized bed pyrolyzer and fixed bed gasifier," Applied Energy, Elsevier, vol. 115(C), pages 9-16.
    3. Karamarkovic, Rade & Karamarkovic, Vladan, 2010. "Energy and exergy analysis of biomass gasification at different temperatures," Energy, Elsevier, vol. 35(2), pages 537-549.
    4. Cho, Min-Hwan & Mun, Tae-Young & Choi, Young-Kon & Kim, Joo-Sik, 2014. "Two-stage air gasification of mixed plastic waste: Olivine as the bed material and effects of various additives and a nickel-plated distributor on the tar removal," Energy, Elsevier, vol. 70(C), pages 128-134.
    5. Raman, P. & Ram, N.K. & Gupta, Ruchi, 2013. "A dual fired downdraft gasifier system to produce cleaner gas for power generation: Design, development and performance analysis," Energy, Elsevier, vol. 54(C), pages 302-314.
    6. Chiang, Kung-Yuh & Lu, Cheng-Han & Lin, Ming-Hui & Chien, Kuang-Li, 2013. "Reducing tar yield in gasification of paper-reject sludge by using a hot-gas cleaning system," Energy, Elsevier, vol. 50(C), pages 47-53.
    7. Folgueras, M.B. & Díaz, R.M., 2010. "Influence of FeCl3 and lime added to sludge on sludge–coal pyrolysis," Energy, Elsevier, vol. 35(12), pages 5250-5259.
    8. Han, Si Woo & Lee, Jeong Jae & Tokmurzin, Diyar & Lee, Seok Hyeong & Nam, Ji Young & Park, Sung Jin & Ra, Ho Won & Mun, Tae-Young & Yoon, Sang Jun & Yoon, Sung Min & Moon, Ji Hong & Lee, Jae Goo & Kim, 2022. "Gasification characteristics of waste plastics (SRF) in a bubbling fluidized bed: Effects of temperature and equivalence ratio," Energy, Elsevier, vol. 238(PC).
    9. Loha, Chanchal & Chattopadhyay, Himadri & Chatterjee, Pradip K., 2011. "Thermodynamic analysis of hydrogen rich synthetic gas generation from fluidized bed gasification of rice husk," Energy, Elsevier, vol. 36(7), pages 4063-4071.

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