Integration of Pyrolysis with other Thermochemical Processes for Sustainable Hydrogen Production: A Review

This study focused on exploring the integration of pyrolysis with other thermochemical processes as an alternative strategy for an efficient production of hydrogen. Pyrolysis is a thermochemical process that involves the decomposition of organic waste matter in the absence of oxygen to produce gaseous products, liquid and solid residues. Combining pyrolysis with gasification, steam reforming or carbon capture will lead to the increased efficiency in hydrogen production as discovered from the consulted literature study. This approach is not limited to increase in hydrogen output; it however, contributes to reduction in greenhouse gas emissions through the use of renewable feedstock like agricultural biomass. Thus, the synergies between the thermochemical; processes help in the optimization of energy recovery and the generation of valuable products. However, despite these aforementioned benefits, there are still challenges associated process integration, energy efficiency as well as the scalability. Thus, continuous research and advancement in technology using other thermochemical processes would be key contributors to a sustainable hydrogen production as well as cleaner energy in future.