Regeneration method of deactivated catalyst
A deactivated catalyst, catalyst technology, applied in the direction of catalyst regeneration/reactivation, molecular sieve catalyst, chemical equipment and methods, etc., can solve the problems of difficult separation of macromolecular by-products, molecular sieve structure damage, large amount of solvent, etc., to improve acceleration Hydrogen/dehydrogenation reactivity, improvement of dispersion, effect of avoiding aggregation
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0040] Preparation of Catalyst E-1 of the Invention.
[0041] Add 1450mL of organic solvent (the volume ratio of ethanol and benzene is 2:1) into a 2000mL flask to treat 200mL of deactivated catalyst FD-1 after industrial operation, and the number of the catalyst after distillation for 2.0h is Ca-1.
[0042] Take 100g of Ca-1 catalyst, add 11.8g of nickel nitrate (nickel content 3.0wt%) solution for impregnation, and prepare a nickel-containing sample with an atomic ratio of Ni to Pt of about 3:1, and then perform program-controlled firing in an air atmosphere. For charcoal, the specific steps are to raise the temperature to 250°C for 10 hours at a heating rate of 3°C / min, and then continue to raise the temperature to 410°C for 3 hours at a heating rate of 3°C / min to obtain the catalyst Ea-1 of the present invention.
[0043] The above-mentioned catalyst Ea-1 was reduced in a hydrogen atmosphere, and the specific conditions were: the hydrogen pressure was 3.5 MPa, the reductio...
Embodiment 2
[0047] Preparation of Catalyst E-2 of the Invention.
[0048] Add 1450mL of organic solvent (the volume ratio of ethanol and benzene is 1:1) into a 2000mL flask to treat 200mL of deactivated catalyst FD-1 after industrial operation, and the number of the catalyst after distillation for 2h is Ca-2.
[0049] Take 100g of Ca-2 catalyst, add 7.38g of nickel acetate (nickel content 8.0wt%) solution for impregnation, and prepare a nickel-containing sample, in which the atomic ratio of Ni to Pt is about 5:1, and then carry out in the atmosphere of air Program-controlled charcoal burning. The specific steps are to raise the temperature to 240°C for 10 hours at a heating rate of 3°C / min, and then continue to raise the temperature to 420°C for 3 hours at a heating rate of 3°C / min. The obtained catalyst is numbered Eb-1.
[0050] The above-mentioned catalyst Eb-1 was reduced in a hydrogen atmosphere, and the specific conditions were: the hydrogen pressure was 4.5 MPa, the reduction tempe...
Embodiment 3
[0054] Preparation of Catalyst E-3 of the Invention.
[0055] Add 1450mL of organic solvent (the volume ratio of gasoline and kerosene is 1:1) into a 2000mL flask to treat 200mL of deactivated catalyst FD-1 after industrial operation, and the catalyst number after distillation for 2.0h is Cb-1.
[0056] Take 100g of Cb-1 catalyst, add 35.4g of nickel sulfate (Ni content 2.0wt%) solution for impregnation, and prepare a nickel-containing sample, in which the atomic ratio of Ni to Pt is about 6:1, and then carry out in the atmosphere of air Program-controlled charcoal burning, the specific steps are to raise the temperature to 280°C for 8 hours at a heating rate of 3°C / min, and then continue to raise the temperature to 350°C for 5 hours at a heating rate of 3°C / min to obtain the catalyst Ec-1 of the present invention.
[0057] The above-mentioned catalyst Ec-1 was reduced under a hydrogen atmosphere, and the specific conditions were: the hydrogen pressure was 2.5 MPa, the reducti...
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More