Chemical-looping combustion of biomass in a 100 kW pilot
Paper in proceeding, 2017

Chemical-looping combustion (CLC) is an innovative carbon-capture technology with potential to drastically reduce the cost of capture. By using a circulating bed material to transfer oxygen from the combustion air to the fuel, air and fuel are never mixed and the CO 2 can be obtained as a separate flue gas stream, undiluted by N 2 . In other words, in contrast to other capture technologies, which are burdened with a significant energy penalty, carbon capture is inherent to the CLC process. Chemical-looping combustion of biomass in combination with carbon capture and storage would lead to so called negative emissions. Manganese ores are highly promising oxygen-carrier candidates due to high reactivity and high availability. Here, we present findings from a 100 kW chemical-looping combustor for solid fuels, using a sintered manganese ore called “Sinaus” as oxygen carrier and two kinds of wood pellets as fuel. Preliminary results from 6 h of operation with steam-exploded wood pellets show fuel conversion up to 75%, and essentially complete CO 2 capture. The expected lifetime of the oxygen carrier particles was found to be 100-400 hours.

CO2 capture

Boiler

Circulating fluidized bed

Author

Carl Johan Linderholm

Chalmers, Energy and Environment, Energy Technology

Anders Lyngfelt

Chalmers, Energy and Environment, Energy Technology

Magnus Rydén

Chalmers, Energy and Environment, Energy Technology

Matthias Schmitz

Chalmers, Energy and Environment, Energy Technology

European Biomass Conference and Exhibition Proceedings

22825819 (eISSN)

Vol. 2017 25thEUBCE 412-415

European Biomass Conference and Exhibition
, ,

OxyCar-FBC, Oxygen Carriers in Fluidized Bed Combustion of Biomass

Swedish Energy Agency (43936-1), 2017-02-01 -- 2020-01-31.

Novel combustion principle with inherent capture of CO2 using combined manganese oxides that release oxygen (NOCO2)

European Commission (EC) (EC/FP7/291235), 2012-03-01 -- 2017-02-28.

Subject Categories

Chemical Process Engineering

Bioenergy

Energy Systems

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Latest update

4/21/2023