Carbon-supported ZnO materials for sulfur capturing in supercritical water.

ABSTRACT: Sulfur (S) capturing materials working at supercritical water (SCW) conditions need to be designed and developed to overcome issues related with catalyst poisoning during the hydrothermal gasification of wet biomass, an efficient and sustainable technology for alternative fuels production. Sorbent materials of zinc oxide (ZnO) deposited on porous carbon (C) support were prepared by an innovative continuous flow SCW impregnation method. Their S-adsorption performance was tested under the same supercritical conditions in the presence of sodium hydrosulfide (NaHS), as model inorganic sulfur compound. During sulfidation experiments, ZnS replaced ZnO indicating an efficient chemisorption of S with the formation of the sulfide particles by a pseudomorphic replacement mechanism. The S adsorption

SUBMITTER: Maxim F 

PROVIDER: S-EPMC12022147 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature