Title: Process for regenerating catalyst and absorbents
Application Number: 98127121 Application Date: 1998.12.08
Publication Number: 1225854 Publication Date: 1999.08.18
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: B01J31/02;B01J31/40
Applicant(s) Name: Institut francais Du Petrole Address:
Inventor(s) Name: O. Clause;P. Euzen;S. Lunati
Attorney & Agent: luo caixi
Abstract:
    The addition of a nitrogen oxide at the combustion stage lowers the combustion temperature and improves regeneration of the product. The process is used for the regeneration of spent catalysts having been used in the treatment of hydrocarbons containing no more than 2000 ppm nitrogen. The product comprises a refractory oxide and/or a molecular sieve compound. It comprises a combustion of the deposited organic material in the presence of a combustion support containg O2 and an inert gas, also including a nitrogen oxide NxOy, such that y/x is greater than 0.5. The operating temperature is between 200-700 degrees C, at a pressure of 0.1-4 MPa and nitrogen oxide content of 0.0001-20%.
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