Akademik Veri Yönetim Sistemi
5TH INTERNATIONAL CONFERENCE ON ENGINEERING AND APPLIED NATURAL SCIENCES, Konya, Türkiye, 25 - 26 Ağustos 2024, ss.208
Hazardous H2S gas can be converted to
valuable final products by H2S decomposition reaction. The
decomposition of H2S to H2 and elemental sulfur in a
single step (H2S « H2 + 1/nSn) is a reversible and endothermic
reaction with thermodynamic equilibrium limitation. In this study, commercial carbon-supported
(CMC) molybdenum (5-10-20 wt.%) catalysts were prepared to investigate their
catalytic activity on hydrogen production from H2S decomposition. To
determine the physicochemical and structural properties of the catalysts, characterization studies were carried out by
using N2 adsorption-desorption, XRD and DTA analyses. While the surface area of the commercial
carbon material was found to be 45m2/g, the surface areas of 5Mo@CMC,
10Mo@CMC and 20Mo@CMC were found to be 75, 71 and 63 m2/g,
respectively. It is thought that the molybdenum addition to the structure
creates new pores. In the XRD analysis of the CMC material, two peaks belonging
to graphitic carbon were observed at 2θ≈26o and 43°. Literature
studies and DTA analysis also confirmed the existence of graphitic carbon in
the structure. While characteristic peaks of MoO2
were observed in the structure of the 5Mo@CMC catalyst, Mo2C
structures were observed in the structure of 10Mo@CMC and 20Mo@CMC catalysts. Activity testing studies of the synthesized
catalysts in the reactor system containing a conventional heated tube furnace were
carried out at 800oC. An
average of 23% H2S conversion was achieved from the catalysts. This
value is very close to the thermodynamic conversion value. Analysis of after-reaction
samples continues.