Assessment of Innovative Carbon Capture Technologies Applied for Flexible Energy Vectors Poly-generation

Abstract Reducing CO2 emissions from energy-intensive industrial applications is of paramount importance today. Various carbon capture, utilisation and storage (CCUS) technologies can be applied to reduce the carbon footprint of industrial processes. This paper is presenting, through various illustrative gasification-based examples, some innovative carbon capture technologies used for decarbonised flexible energy vectors polygeneration (e.g. power, hydrogen, methanol etc.). The reactive gas-liquid and gas-solid methods are evaluated as CO2 capture methods with emphasize on innovative energy-efficient chemical looping systems. The overall carbon capture rate of the plant is set to min. 90 %. The proposed conceptual designs were simulated using process flow modelling, the generated mass & energy balances as well as the various thermal integration tools (e.g. pinch method) were used to quantify and optimize the key technical and environmental plant performance indicators. The assessments show that flexible carbon capture technologies have significant advantages in reducing the environmental impact of energy-intensive industrial applications as well as the CO2 capture energy penalty, increasing the overall energy efficiency, improving plant cycling capabilities (flexible energy vectors poly-generation) with clear benefits in the modern energy systems where time-irregular renewable sources have an increase share.