Abstract:

Biomass energy was an ideal clean energy, with the advantages of renewable, diversity and could achieve zero carbon dioxide emissions. Biomass catalytic reforming to produce hydrogen was an effective, environmentally friendly and economical way of biomass thermochemical conversion and utilization. In this paper, the research progress of biomass catalytic reforming for hydrogen production was reviewed from the aspects of key reaction parameters in the process of biomass catalytic reforming: reaction temperature, ratio of water to carbon, reaction space velocity and catalyst. The effects of reaction parameters, catalyst selection and application on pyrolysis products were reviewed. The influence mechanism of natural ore catalyst, alkali metal catalyst, transition metal catalyst and spinel catalyst on the water vapor conversion characteristics of biomass was combed. The effective utilization way of improving the efficiency and stability of reforming reaction by developing stable catalyst with high activity through directional control was summarized. It was pointed out that the clear catalytic mechanism should be further explored from the perspective of the interaction mechanism between biomass and catalyst and the reaction mechanism of pyrolysis and gasification.

Key words: biomass, hydrogen production, catalyst, reforming, pyrolysis