Advancement in Calcium Looping for Carbon Capture: A Content and Bibliometric Review of 20 Years of Research

Abstract

Carbon dioxide (CO2) emissions pose global challenges, necessitating carbon neutrality in future development. CO2 capture and energy storage technologies are crucial steps, with calcium looping (CaL) holding significant potential for both. This technology is crucial for achieving carbon neutrality in future strategies. This paper thoroughly reviews the use of CaL in CO2 capture and storage over the past two decades. It provides an overview of CaL's application, reviews research progress in CaL-integrated systems, discusses existing limitations, and highlights possibilities for future growth. According to the study, from 2003 to 2023, 692 documents were published on CaL. The annual growth rate of 18.92% indicates rapidly expanding research efforts and increasing recognition of CaL potential. Based on the findings, the field of CaL has evolved from understanding historical carbon cycles to incorporating advanced combustion techniques and renewable resources. Key concepts like "process simulation," "modeling," and "life cycle assessment (LCA)" have become more prominent in relation to the subject matter. The study indicates that CaL has significant potential for carbon capture (CC) and storage. However, future research should focus on sorbent development, process optimization, characterization, economic evaluations, and large-scale applications to improve efficiency.