Abstract
Abstract CS 2 destruction is an important reaction in industrial Claus process. A reversible deactivation over titania in CS 2 conversion has been found in this laboratory. This deactivation is closely related to the presence of Claus reaction. The key intermediate species of Claus reaction is thiosulfate anion, S 2 O 3 2− , which further reacts with Bronsted acid of titania to form surface polythionates. The long S chain of the latter would shield the active centers responsible for CS 2 conversion and causes the deactivation, while these polythionates can be easily destroyed by heating at 330 °C, which is finally accompanied by a recovery of catalytic activity in CS 2 conversion.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
