Test methods for simulating FCC regenerator catalysis and catalyst deactivation
AssigneeBASF Catalysts LLC
InventorDavid Matheson Stockwell
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Abstract
A method for testing the performance of catalysts used for conversion of FCC regenerator gases comprises subjecting the catalyst simultaneously to a mixture of gases including an oxidizing gas and a reducing gas in more than one cycle in which the ratio of the oxidizing gas to the reducing gas varies over the time of the cycle. Test gases comprising O2, CO, CO2, steam, nitrogen-containing gases and sulfur-containing gases in which the ratio of O2 to CO varies over time for each cycle and in which the products of combustion formed during each cycle can be measured periodically over the cycle yields important data on the usefulness of the catalysts for treatment of regenerator flue gas.
Claims20
A test method for evaluating the performance of particulate catalysts used to treat or that otherwise react with FCC regenerator flue gas comprising subjecting a catalyst to more than one lambda cycle in which the catalyst is contacted simultaneously with a mixture of feed gases comprising at least one oxidizing gas and at least one reducing gas and varying the ratio of said at least one oxidizing gas to said at least one reducing gas over the time of each cycle.
A method of aging a catalyst by contacting the catalyst simultaneously in more than one lambda cycle with a mixture of feed gases comprising steam, at least one oxidizing gas and at least one reducing gas and varying the ratio of said at least one oxidizing gas to said at least one reducing gas over time in each cycle.
Dependencies are inferred from the claim text.