Abstract
The influence of Na + on the nature of sulphate species, alumina sulphation and the regeneration of spent Claus alumina catalyst either by hydrogen sulphide reduction or water leaching has been studied by Fourier transform-IR spectroscopy and microgravimetry. Na + strongly modifies the nature of sulphate species on alumina, leading to mixed sodium aluminium sulphate and sodium sulphate species. Na + appears to promote sulphur dioxide adsorption and catalyst sulphation, the latter occurring at a lower temperature. It does not affect the reducibility of sulphate by hydrogen sulphide, which is found to be a slow process, but Na + facilitates the removal of sulphate species by water leaching and this appears to be an efficient process for elimination of sulphate.
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 callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
