低温等离子体协同催化转化生物质气化焦油研究进展

Biomass, as a renewable energy source, holds a significant position in the global energy due to its potential for producing syngas through thermochemical conversion processes. However, tar formation during this process severely hampers the quality of synthesis gas and impedes the commercialization of biomass gasification technology. Among various tar removal methods, catalytic reforming has garnered substantial attention because it can effectively decompose tar into valuable gaseous products. Notwithstanding, catalyst deactivation under high-temperature conditions remains a critical challenge to be addressed. The synergistic use of non-thermal plasma (NTP) catalysis stands out as particularly promising due to its capability to efficiently decompose tar at lower temperatures. By coupling with heterogeneous catalysts, NTP can significantly enhance catalyst activity and stability, reduce the formation of unfavorable byproducts, and improve product selectivity. This paper systematically reviews the optimization of tar reforming catalysts in conventional catalytic systems, including their deactivation mechanisms, and further delves into the synergistic effects of different combinations of NTP and catalyst systems on tar reforming efficiency and mechanisms. Ultimately, the paper discusses the prospects of applying NTP catalytic technology in the field of biomass gasification tar reforming, emphasizing the importance of catalyst design and preparation, as well as the optimization of practical operating parameters, in order to propel the sustainable development and technological advancement of the biomass gasification industry.