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This paper presents a new solids looping process for capturing CO₂ while generating hydrogen and/or electricity from natural gas. The process is based on the sorption enhanced reforming of CH₄, employing CaO as a high temperature CO₂ sorbent, combined with a second chemical loop of CuO/Cu. The exothermic reduction of CuO with CH₄ is used to obtain the heat necessary for the decomposition of the CaCO₃ formed in the reforming step. The main part of the process is completed by the oxidation of Cu to CuO, which is carried out with air diluted with a product gas recycle of this reactor at sufficiently low temperatures and high pressures to avoid the decomposition of a substantial fraction of CaCO₃.