TY - JOUR
T1 - Characterization of catalysts by Moessbauer spectroscopy: an application to the study of Fischer-Tropsch, hydrotreating and super Claus catalysts
AU - Kraan, van der, A.M.
AU - Boellaard, E.
AU - Crajé, M.W.J.
PY - 1993
Y1 - 1993
N2 - Mössbauer spectroscopy is an excellent in-situ technique for the identification of phases present in catalysts. Applied to metallic iron catalysts used in the Fischer-Tropsch reaction it reveals a detailed picture of the carburization process and provides insight into the relation between the properties of the catalytic material and its activity. The influence of a support and the effect of alloying iron with an (in)active metal on the catalytic performance is discussed for Fe, Cu---Fe and Ni---Fe systems.
In addition, Mössbauer spectroscopy is used for the identification of "Co-sulfide" species present in sulfided Co and CoMo catalysts applied in one of the largest chemical processes in the world, the hydrotreatment of crude oil. A structural model is proposed.
Finally, the contribution of Mössbauer spectroscopic studies to the development of a new catalyst for cleaning of Claus tail gas via selective oxidation of hydrogen sulfide to elemental sulfur is discussed.
AB - Mössbauer spectroscopy is an excellent in-situ technique for the identification of phases present in catalysts. Applied to metallic iron catalysts used in the Fischer-Tropsch reaction it reveals a detailed picture of the carburization process and provides insight into the relation between the properties of the catalytic material and its activity. The influence of a support and the effect of alloying iron with an (in)active metal on the catalytic performance is discussed for Fe, Cu---Fe and Ni---Fe systems.
In addition, Mössbauer spectroscopy is used for the identification of "Co-sulfide" species present in sulfided Co and CoMo catalysts applied in one of the largest chemical processes in the world, the hydrotreatment of crude oil. A structural model is proposed.
Finally, the contribution of Mössbauer spectroscopic studies to the development of a new catalyst for cleaning of Claus tail gas via selective oxidation of hydrogen sulfide to elemental sulfur is discussed.
U2 - 10.1016/0168-583X(93)95112-I
DO - 10.1016/0168-583X(93)95112-I
M3 - Article
SN - 0168-583X
VL - 76
SP - 6
EP - 12
JO - Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms
JF - Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms
IS - 1-4
ER -