Study of the oxidative regeneration properties of sulphided metal oxides
type: Dataset
description: Metal oxide based materials are commonly used for the final desulphurization of syngas in IGCC andFisher-Tropsch based XTL processes. The formation of large amount of solid waste is a major issue forthis process. The in-situ oxidative regeneration is a promising way to avoid the waste formation and toenhance process efficiency. However, the formation of refractory metal sulphates during the regenerationprocess requires an increase of the regeneration temperature, in order to decompose the species and toallow the sorbent regeneration. In this work, we have studied the use of composed metal oxides todecrease the regeneration temperature, and the related physic-chemical phenomena involved.Thermochemical and experimental studies on various single oxides outlined the specific reactivity ofZnO and MoO3 phases. Consequently a more thorough study on ZnO and MoO3 composed metal oxideswas performed. In particular, it was shown that ZnMoO4, zinc molybdate phase can be regenerated attemperature as low as 500°C. This low regeneration temperature was explained by the sulphided solidtexture and the oxidation of the molybdenum species. Finally a shaped ZnMoO4 was synthesized andtexted on a lab-scale breakthrough experimental device to validate the concept and give guideline for thedesign of industrial regenerable sorbent.
landing page: https://theses.hal.science/tel-00944308
identifier: NNT: 2012LYO10212
keyword: chimothechemical-sciencesother
keyword: desulfuration
keyword: desulphurisation
keyword: gaz-de-synthese
keyword: infoeu-reposemanticsdoctoralthesis
keyword: metal-oxides
keyword: molybdene
keyword: molybdenum
keyword: oxydation
keyword: oxydes-metalliques
keyword: regeneration
keyword: syngas
keyword: theses
keyword: zinc
issued: 2026-05-07T00:12:38.856308
modified: 2026-05-07T00:12:38.856313
language: fr
contact point: Organization
  fn: CCSD

test_moissonnage_selune
type: Agent

Study of the oxidative regeneration properties of sulphided metal oxides
type: Distribution
format: HTML
access URL: https://theses.hal.science/tel-00944308
issued: 2026-05-07T00:12:38.885384
modified: 2026-05-07T00:12:38.836073