Comprehensive review on dry reforming of methane: Challenges and potential for greenhouse gas mitigation
Bruno Agún, A. Abánades
Abstract
The need of reducing the inventory of greenhouse gases, as CO 2 and CH 4 in the atmosphere is attracting the research of processes as dry reforming of methane (DRM). DRM has not yet industrially implemented for some reasons, among them coke formation, energy demand and cost-performance of the catalyst balance. Most of the information regarding DRM available is relying on specific catalyst development and analysis. In this paper, a broad overview of the DRM process is analysed. The reduction of CO 2 and CH 4 into syngas (CO and H 2 ) is of great interest for the decarbonization of the industrial sector. Integration of this process with renewable energy sources for heat delivery, as well as the use of biogas/biomethane can contribute to the circularity of the process. The implementation of DRM at industrial scale might be viable with the optimization of the performance and stability of current catalysts, including new materials as perovskites , spinel, pyrochlore, to improve their cost-benefit balance and their coke deposition resistance. Additional research on new innovative heating systems and reactor concepts, as microwaves, molten material columns, and others like liquid metals may contribute as well to improve process economics.