H2CAP - Hydrogen assisted catalytic biomass pyrolysis for green fuels

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Fast pyrolysis of biomass produces a high yield of bio-oil through well-established technologies [1]. To utilizethis oil as liquid fuel the oxygen content must be reduced from 15-30 wt.% down to <1 wt.%, which increases heating value and stability and decreases acidity [1]. Upgrading bio-oil by catalytic hydrodeoxygenation (HDO) is challenged by severe polymerization and coking upon heating the oil. Alternatively, performing fast pyrolysis in high-pressure hydrogen atmosphere in a fluid bed reactor with a HDO catalyst as bed medium, could immediately stabilize reactive pyrolysis vapors [2]. An additional vapor phase HDO reactor could ensure removal of oxygen down to <1 wt%, resulting in separate hydrocarbon oil and water phases being recovered. A schematic diagram for such a process is shown in Figure 1. A simplified bench scale setup of this process has been constructed at DTU Chemical Engineering. With a capacity of 100 to 300 g/h solid biomass, the aim is to provide a proof-of-concept for the continuous conversion of solid biomass to low oxygen, fuel-grade bio-oil.
Original languageEnglish
Publication date2017
Number of pages1
Publication statusPublished - 2017
Event25th European Biomass Conference and Exhibition - Stockholmsmässan, Stockholm, Sweden
Duration: 12 Jun 201715 Jun 2017


Conference25th European Biomass Conference and Exhibition

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Stummann, M. Z., Høj, M., Gabrielsen, J., Jensen, P. A., & Jensen, A. D. (2017). H2CAP - Hydrogen assisted catalytic biomass pyrolysis for green fuels. Abstract from 25th European Biomass Conference and Exhibition, Stockholm, Sweden.