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

Circulating fluidized bed

Boiler

Author

Carl Johan Linderholm

Chalmers, Chemistry and Chemical Engineering, Energy and Material, Environmental Inorganic Chemistry

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

2282-5819 (eISSN)

Vol. 2017 25thEUBCE 412-415

European Biomass Conference and Exhibition
, ,

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

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

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

Swedish Energy Agency, 2017-02-01 -- 2020-01-31.

Subject Categories

Chemical Process Engineering

Bioenergy

Energy Systems

More information

Latest update

12/2/2019