Advancements in sorption-enhanced steam reforming for clean hydrogen production: A comprehensive review
Ahmad Salam Farooqi, Abdelwahab N. Allam, Muhammad Shahid, Anas Aqil, Kevin Fajri, Sunhwa Park, Omar Y. Abdelaziz, Mahmoud M. Abdelnaby, Mohammad M. Hossain, Mohamed A. Habib, Syed Muhammad Wajahat ul Hasnain, Ali Nabavi, Mingming Zhu, Vasilije Manović, Medhat A. Nemitallah
Abstract
The sorption-enhanced steam methane reforming (SE-SMR) process, which integrates methane steam reforming with in situ CO 2 capture, represents a breakthrough technology for clean hydrogen production . This comprehensive review thoroughly explores the SE-SMR process, highlighting its ability to efficiently combine carbon capture with hydrogen generation. The review evaluates the mechanisms of SE-SMR and evaluates a range of innovative sorbent materials, such as CaO-based, alkali-ceramic, hydrotalcite, and waste-derived sorbents. The role of catalysts in enhancing hydrogen production within SE-SMR processes is also discussed, with a focus on bi-functional materials. In addition to examining reaction kinetics and advanced process configurations, this review touches on the techno-economic aspects of SE-SMR. While the analysis does not provide an in-depth economic evaluation, key factors such as potential capital costs (CAPEX), operational expenses (OPEX), and scalability are considered. The review outlines the potential of SE-SMR to offer more efficient hydrogen production, with the added benefit of in situ carbon capture simplifying the process design. Although a detailed economic comparison with other hydrogen production technologies was not the focus, this review emphasizes SE-SMR's promise as a scalable and flexible solution for clean energy. With its integrated design, SE-SMR offers pathways to industrial-scale hydrogen production. This review serves as a valuable resource for researchers, policymakers, and industry experts committed to advancing sustainable and efficient hydrogen production technologies.