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Development of a regenerative reformer for tar-free syngas production in a steam gasification process

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  • Tsuboi, Yosuke
  • Ito, Shintaro
  • Takafuji, Makoto
  • Ohara, Hiroaki
  • Fujimori, Toshiro

Abstract

A novel reformer using highly efficient heat regeneration for tar-free syngas production is developed and its performance demonstrated in a pilot-scale plant using steam gasification. Basic design parameters of the regenerative tar reformer, namely residence time and amount of oxidant are determined based on numerical results. It has been predicted that good performance could be achieved at an operation temperature about 1573K, the residence time exceeding 4s and an oxidant addition of 12% of the syngas flow rate. The regenerative tar reformer so designed shows stable operation. Over 99% of light and heavy tars are reformed to gas in the case of 11.3% oxygen addition to syngas. Further it is seen that a reduction of oxygen consumption more than 30% compared to a conventional oxidation reformer can be achieved. The formation of a high temperature zone and good mixing of syngas and oxygen has a strong influence on the tar reforming efficiency.

Suggested Citation

  • Tsuboi, Yosuke & Ito, Shintaro & Takafuji, Makoto & Ohara, Hiroaki & Fujimori, Toshiro, 2017. "Development of a regenerative reformer for tar-free syngas production in a steam gasification process," Applied Energy, Elsevier, vol. 185(P2), pages 1217-1224.
    • Handle: RePEc:eee:appene:v:185:y:2017:i:p2:p:1217-1224
    DOI: 10.1016/j.apenergy.2015.12.110
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    References listed on IDEAS

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    1. Unyaphan, Siriwat & Tarnpradab, Thanyawan & Takahashi, Fumitake & Yoshikawa, Kunio, 2017. "Improvement of tar removal performance of oil scrubber by producing syngas microbubbles," Applied Energy, Elsevier, vol. 205(C), pages 802-812.
    2. Hervy, Maxime & Weiss-Hortala, Elsa & Pham Minh, Doan & Dib, Hadi & Villot, Audrey & Gérente, Claire & Berhanu, Sarah & Chesnaud, Anthony & Thorel, Alain & Le Coq, Laurence & Nzihou, Ange, 2019. "Reactivity and deactivation mechanisms of pyrolysis chars from bio-waste during catalytic cracking of tar," Applied Energy, Elsevier, vol. 237(C), pages 487-499.
    3. Gaber, Christian & Demuth, Martin & Prieler, René & Schluckner, Christoph & Schroettner, Hartmuth & Fitzek, Harald & Hochenauer, Christoph, 2019. "Experimental investigation of thermochemical regeneration using oxy-fuel exhaust gases," Applied Energy, Elsevier, vol. 236(C), pages 1115-1124.

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