Non-natural catalysts for catalytic tar conversion in biomass gasification technology

In biomass gasification technology, catalytic reforming of tar with non-natural catalysts is one of the most effective methods to remove by-product tar. This review mainly summarizes the kinetic characteristics, mechanisms, and activities of non-natural catalysts on tar reforming, and the solutions to the above problems. In this paper, the deactivation of catalysts, the influence of catalysts on environment and regeneration methods are introduced in detail, which provides reference for designing efficient, environmentally friendly and sustainable catalysts. In addition, some suggestions about biomass tar reforming catalysts are also put forward. To date, gratifying results have been achieved in the development of non-natural catalysts for tar steam reforming, however, due to the inevitable deactivation of catalysts and the negative impact on the waste catalyst environment,