Carbon Capture, Utilisation and Storage (CCUS) will play a key role in achieving the IPCC goal to limit climate change to below 2°C, and making the UK net-zero of CO2 emissions by 2050. Although there are numerous different approaches to CO2 capture, the use of chemical solvents is the most developed given that similar technology has been used for natural gas sweetening (removal of CO2 and H2S from natural gas under pressure) for many years. However there are numerous drawbacks to the technology used, many of which arise from the scale of the problem of CO2 emissions.
C-Capture, a spin out from the Chemistry Department at Leeds University, has developed a new technology which uses significantly less energy than current commercial technologies for the CO2 separation process, utilising chemicals which are inexpensive, readily available, and environmentally benign. They are conducting Europe’s first Bioenergy with Carbon Capture and Storage (BECCS) demonstration project with Drax Power Station, Selby, which when deployed on scale, is a key negative emissions technology (NET) which has the potential to effectively remove CO2 from the atmosphere, whilst generating electricity.
The C-Capture process can remove CO2 from almost any gas stream, and so can be deployed at large scale CO2 emitters such as power stations (fuelled by gas, coal, and biomass), industrial manufacturing (glass, iron and steel, cement), hydrogen production (via steam methane reforming), natural gas sweetening and biogas upgrading.