Studies on recycling and utilization of spent catalysts: Preparation of active hydrodemetallization catalyst compositions from spent residue hydroprocessing catalysts
โ Scribed by Meena Marafi; Antony Stanislaus
- Book ID
- 113460295
- Publisher
- Elsevier Science
- Year
- 2007
- Tongue
- English
- Weight
- 726 KB
- Volume
- 71
- Category
- Article
- ISSN
- 0926-3373
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In recent years, increasing emphasis has been placed on recycling spent hydroprocessing catalysts due to environmental regulations which list them as hazardous waste materials. In the present work, the recycling of spent residue hydroprocessing catalysts that contained high levels of vanadium was in
Two routes were used to rejuvenate spent residue hydroprocessing catalysts by leaching foulant metals. In the first, deoiled spent catalyst containing coke and deposited metals in sulfide form was chemically treated to remove the metal foulanta. In the second, deoiled spent catalyst was decoked by c