Climeworks Launches Latest DAC Plant in Italy
by Rob Cockerill (GasWorld) Switzerland-based Climeworks has just launched another of its second-generation Direct Air Capture plants (DAC-3) in Troia, Apulia in Italy.
Climeworks has been developing the technology since 2009 and commissioned its first industrial-scale CO2 capture unit in late 2014 dubbed the ‘CO2 Collector’, which captures 50 tonnes of CO2 per year.
Its plants capture atmospheric carbon with a filter; air is drawn into the plant and the CO2 within the air is chemically bound to the surface of a sorbent (the filter). Once the filter is saturated with CO2 it is heated (using mainly low-grade heat as an energy source) to around 100°C. The CO2 is then released from the filter and collected as concentrated CO2 gas, which can then be purified and delivered as high purity CO2 for carbonating beverages, for example.
…
The plant will filter up to 150 tons of CO2 from ambient air per year. Simultaneously, an alkaline electrolyser (1.2 MW) locally generates 240 cubic meters of renewable hydrogen per hour by making use of excess on-site photovoltaic energy.
The captured CO2 and renewable hydrogen are then catalytically methanated (a process known as Power-to-Gas) in modular reactors by French company ATMOSTAT. The methane is then liquefied and used to fuel natural gas lorries. READ MORE
Swiss Re, Climeworks sign world’s 1st & largest 10-year carbon removal purchase agreement (Biofuels Digest)
