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Title
Catalytic performance of Ni–Cu/TiO2 catalyst for conversion of H2S and SO2 to sulfur
Type of Research Article
Keywords
Anatase · Claus catalyst · Calcining · Co-impregnation · Elemental sulfur · Extrude · Gas conversion
Abstract
The anatase TiO2-supported Ni–Cu bimetallic catalyst was prepared by Co-impregnation method and after shaping by three binders (bentonite, polyethylene glycol and poly vinyl alcohol) into extrudes, the efect of calcining temperature (200 °C, 400 °C, 600 °C and 800 °C) and calcining time (1, 3, 5 and 7 h) on the extrudes were investigated. According to the obtained results, the catalyst prepared at calcining temperature of 600 °C and calcining time of 5 h was selected as the optimal catalyst due to its anatase pure phase, high crystallinity and relatively high surface area. The as-prepared shape catalyst was evaluated as a Claus catalyst for conversion of H2S, CS2 and SO2 into elemental sulfur and provides high conversion of H2S 72.67%, CS2 69.77% and SO2 84.78%. The results indicated that the shaped catalyst with 75.50%
Researchers vida Nourozi Rad (First Researcher)، mansoor anbia (Second Researcher)، Moayad Hossaini Sadr (Third Researcher)، karim zare (Fourth Researcher)