Pilot scale CO2 capture at a Waste-to-Energy facility
Post-combustion carbon capture is a well-established technology for removing CO2 from industrial emissions. However, research is still underway to optimise the process and make it more energy efficient. The current work aims to present the results from pilot-scale (with a capacity of 1 tonne CO2/day) studies of CO2 capture conducted at Amager Bakke, a Waste-to-Energy facility in Copenhagen, Denmark.
Optimisation of the process flowsheet is a promising alternative to developing new solvents for overcoming the disadvantages of MEA-based CO2 capture. The operating conditions of a capture plant can be fine-tuned in conjunction with advanced process configurations and power plant integration to reduce the high energy requirements. The performance of the capture plant can be improved by optimising the absorption process, heat integration and heat pump installation. The present work discusses the implementation of configurations such as split flow configuration and stripper interheating for 30 wt% MEA, which have shown to significantly reduce the specific reboiler duty (SRD) compared to the base case operation.