In recent decades,
the production of H
2
from biomass,
waste plastics, and their mixtures has attracted increasing attention
in the literature in order to overcome the environmental problems
associated with global warming and CO
2
emissions caused
by conventional H
2
production processes. In this regard,
the strategy based on pyrolysis and in-line catalytic reforming allows
for obtaining high H
2
production from a wide variety of
feedstocks. In addition, it provides several advantages compared to
other thermochemical routes such as steam gasification, making it
suitable for its further industrial implementation. This review analyzes
the fundamental aspects involving the process of pyrolysis-reforming
of biomass and waste plastics. However, the optimum design of transition
metal based reforming catalysts is the bottleneck in the development
of the process and final H
2
production. Accordingly, this
review focuses especially on the influence the catalytic materials
(support, promoters, and active phase), synthesis methods, and pyrolysis-reforming
conditions have on the process performance. The results reported in
the literature for the steam reforming of the volatiles derived from
biomass, plastic wastes, and biomass/plastics mixtures on different
metal based catalysts have been compared and analyzed in terms of
H
2
production.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.