Title:
Entrained Flow Gasification of Straw- and Wood-Derived Pyrolysis Oil in a Pressurized Oxygen Blown Gasifier
Author(s):
Leijenhorst, E.J., Assink, D., van de Beld, L., Weiland, F., Wiinikka, H., Carlsson, P., Ohrman, O.G.W.
Document(s):
Paper
Poster
Abstract:
Pretreatment of biomass via fast pyrolysis can give certain advantages over the direct entrained flow gasification of biomass. In this work pilot scale tests are performed using wheat straw and pine wood as feedstocks to investigate this route. Both feedstocks were converted into homogeneous pyrolysis oils using in-situ moisture removal. The obtained pyrolysis oils were then gasified in a pressurized, oxygen blown entrained flow gasifier. The gasifier was operated at 4 barg, at a thermal load of 0.4 MW. Lambda values around 0.4 were used, resulting in gasification temperatures of 1250-1300 °C. The syngas product consisted primarily of CO (46 vol.%), H2 (30 vol.%) and CO2 (23 vol.%) for both oils. These experiments show pyrolysis oils from different biomass feedstocks can be processed in the same gasifier, confirming a scenario where decentralized pyrolysis plants convert a variety of biomass feedstocks into pyrolysis oil which is subsequently gasified in a large centralized gasifier.
Keywords:
gasification, pyrolysis oil, syngas, entrained flow
Topic:
Biomass Conversion Technologies for Heating, Cooling and Electricity
Subtopic:
Gasification for synthesis gas production
Event:
22nd European Biomass Conference and Exhibition
Session:
2AV.2.31
Pages:
650 - 654
ISBN:
978-88-89407-52-3
Paper DOI:
10.5071/22ndEUBCE2014-2AV.2.31
Price:
FREE
