Sustainable and energy efficient hydrogen production via glycerol reforming techniques: A review. (19th December 2022)

• Record Type: Journal Article
• Authors: Qureshi, Fazil; Yusuf, Mohammad; Pasha, Amjad Ali; Khan, Huma Warsi; Imteyaz, Binash; Irshad, Kashif
• Is Part Of: International journal of hydrogen energy. Volume 47:Number 98(2022)
• Page Start: 41397
• Page End: 41420
• Publication Date: 2022-12-19
• Subjects: Hydrogen -- Sustainable source -- Alternative energy -- Circular economy -- Glycerol reforming; Hydrogen as fuel -- Periodicals; Hydrogène (Combustible) -- Périodiques; Hydrogen as fuel; Periodicals; 665.81
• DOI: 10.1016/j.ijhydene.2022.04.010
• Languages: English
• ISSNs: 0360-3199

Abstract

Abstract: Hydrogen-based energy solutions are among the alternative energy choices due to their clean emissions and high efficiency. H2 is a highly convenient energy source, particularly if derived from sustainable feedstock. With the renewed emphasis on biodiesel production globally, large quantities of glycerol are expected to be produced as a major by-product. Reforming of this glycerol can provide a sustainable and H2 -rich feedstock. The study reveals that 7H2 molecules were produced/molecule of glycerol in GSR, which is much higher than the commercially available SRM process. This also endorses the concept of circular economy and the 3Rs (Reuse, Reduce, and Recycle) by utilization of a by-product. This review highlights the recent advancements in different types of glycerol reforming technologies for H2 production. The highly endothermic reaction and the coking of Ni-based catalysts are still the main limitations in its commercialization. It has been found that among different glycerol reforming techniques, the GSR is the finest with the least drawbacks. Hence, corresponding solutions to overcome these obstacles are deliberated. Graphical abstract: Image 1 Highlights: H2 energy is current necessity to control global warming caused by fossil fuels. H2 production via glycerol reforming support circular economy and sustainable approach. The H2 molecules produced via GSR is much higher than commercial SRM technique. Ni-based catalysts are promising, but quest for a commercial catalyst for GSR remain.