Hydrocarbon conversion catalyst containing zeolite
A catalyst and zeolite technology, which is applied in the field of hydrocarbon conversion catalysts and its preparation, can solve the problems of accelerating coking reaction of polymerization, etc., and achieve the effects of high yield, good activity stability and selectivity, and high petroleum hydrocarbon conversion capacity
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
preparation example Construction
[0029] According to the preparation method of the catalyst provided by the present invention, before aging, all or part of the heat-resistant inorganic oxide and / or its precursor can be added. In order to make the catalyst have better wear resistance, it is preferable to add Add part of the heat-resistant inorganic oxide and / or its precursor, and then add the remaining heat-resistant inorganic oxide and / or its precursor after aging. The part added first and the part added later make the heat-resistant inorganic oxide added first in the catalyst The weight ratio of the oxide to the post-added heat-resistant inorganic oxide is 1:0.1-10, more preferably 1:0.1-5.
[0030] The clays can be added before or after aging, and the order in which the clays are added has no effect on the performance of the catalyst.
[0031] The acid is selected from one or more of water-soluble inorganic acids and organic acids, preferably one or more of hydrochloric acid, nitric acid, phosphoric acid, a...
example 1
[0055] 2 kg NH 4 Cl was dissolved in 100 kg of water, and 10 kg (dry basis) of ZRP-1 zeolite (the zeolite with MFI structure containing rare earth, produced by Qilu Petrochemical Catalyst Factory, SiO 2 with Al 2 o 3 The molar ratio is 30, the rare earth oxide RE 2 o 3 The content is 4.0% by weight, of which, the content of lanthanum oxide is 2.12% by weight, the content of cerium oxide is 0.52% by weight, the content of other rare earth oxides is 1.36% by weight, Na 2 O content is 1.7% by weight), carries out ion exchange at 90 ℃ after 0.5 hour, filters to obtain filter cake; 9.8 kilograms contain 0.34 kilograms of H 3 PO 4 , 0.29 kg Fe(NO 3 ) 3 and 0.15 kg Zn(NO 3 ) 2 The mixed solution and the filter cake were evenly mixed, dried at 120°C, and calcined at 550°C for 2 hours to obtain zeolite Z1 with MFI structure containing phosphorus, metallic iron, and zinc. The anhydrous chemical expression of Z1 is: 0.1Na 2 O 4.9Al 2 o 3 2.4P 2 o 5 0.9Fe 2 o 3 0.6ZnO 3.8...
example 2
[0057] 5 kg NH 4 Cl is dissolved in 100 kilograms of water, and 10 kilograms (dry basis) of ZRP-1 zeolite (same as example 1) are added in this solution, after exchanging at 85 ℃ for 0.5 hour, filter cake is obtained; The filter cake obtained is mixed with 6.8 kilograms containing 0.8 kg NH 4 h 2 PO 4 The solution was mixed evenly, dried at 120°C, and calcined at 550°C for 2 hours; the calcined sample was mixed with FeCl at a liquid-solid ratio of 5:1 3 Concentration of 6.5 wt%, ZnCl 2 The mixed solution with a concentration of 4.7% by weight is ion-exchanged at 80-90°C for 2 hours, filtered, and then ion-exchanged under the same conditions until the target amount is reached, and then roasted at 550°C for 2 hours to obtain phosphorus and metallic iron. , Zinc zeolite Z2 with MFI structure. The anhydrous chemical expression of Z2 is: 0.03Na 2 O 4.7Al 2 o 3 4.5P 2 o 5 1.6Fe 2 o 3 1.4ZnO 3.7RE 2 o 3 84.1 SiO2 2 .
PUM
| Property | Measurement | Unit |
|---|---|---|
| diameter | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More