DOI: 10.1039/D3GC01775C (Paper) Green Chem., 2023, 25, 8584-8592Received 24th May 2023 , Accepted 15th August 2023First published on 16th August 2023AbstractVarious sources of carbon can be converted into acetylene (C2H2) by using the key intermediate calcium carbide (CaC2). However, the production of CaC2 is a typical energy-intensive process, accompanied by considerable carbon dioxide (CO2) emissions and a large amount of industrial solid waste. In this study, a sustainable methodology for car...