Work

CO2 capture and utilization for production of precipitated calcium carbonate in a rotating packed bed: simultaneous design and control using distributed computing

Year: 2025

Type: article

Abstract: • Integrated CO 2 capture and utilization process design and controllability algorithm • Model of Rotating Packed Bed for precipitated calcium carbonate (PCC) production • Approximate computing enables high performance and scalability in parallel infrastructure • Up to 21.8% lower PCC costs attained compared to conventional approach A novel design optimization approach is presented for the integrated CO 2 capture (CC) and utilization (CU) process design with simultaneous economic and controllability assessment. The CC process accounts for multiple solvents and process flowsheet options. The CU process targets the production of nano-sized precipitated calcium carbonate (PCC) using a rotating packed bed (RPB). The algorithm enables parallel computing and uses the approximate computing techniques of memoization and task dropping. It is implemented considering 20 alternative options for the CC process, as combinations of 4 solvents with 5 process flowsheet configurations. The tailored CU process is designed simultaneously with the aim to identify combinations that exhibit high economic performance both in steady state operation and under variability. The algorithm is tested in two case studies with different flue gas characteristics and different yearly operating scenarios, exhibiting excellent scalability in 100 parallel threads. The results showed that 2-(2-hydroxyethylamino) ethanol (DEA) is the optimal choice in both case studies. An absorber with intercooling (ICA) increased the driving forces in the CC process and led to better performance in both cases. The optimal design in the case of higher CO 2 content in the flue gas involved a double-side stripper (DSS) for solvent regeneration.

Source: Chemical Engineering and Processing - Process Intensification

DOI: 10.1016/j.cep.2025.110509

Authors: Thomas Prousalis, George Gkizas, Panagiotis Kazepidis, Panos Seferlis, Athanasios I. Papadopoulos

Institutions: Aristotle University of Thessaloniki, Centre for Research and Technology Hellas

Language: English

Topic: Carbon Dioxide Capture Technologies

Subfield: Mechanical Engineering

Field: Engineering

Domain: Physical Sciences

SDGs: Responsible consumption and production, Climate action, Affordable and clean energy, Industry, innovation and infrastructure

Open Access status: hybrid

Estimated APC paid: $3,910