Catalyst for production of propylene and ethylene with carbon alkatetraenes, regeneration and uses thereof
A technology for producing carbon tetraolefins and carbon tetraolefins, which is applied in the direction of catalyst regeneration/reactivation, molecular sieve catalysts, physical/chemical process catalysts, etc., can solve the problems of poor selectivity and short service life, and achieve convenient operation and low reaction temperature , The effect of simple preparation method and regeneration method
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Embodiment 1
[0039] Embodiment 1 prepares catalyst A
[0040] 50g ZRP molecular sieve (SiO 2 / Al 2 o 3 >200), 50g of silicon oxide, 2g of scallop powder; mix well, add 80ml of 5% nitric acid, mix well, extrude into 2mm cylindrical shape, and cut into 2-3mm; dry at 80°C and 120°C respectively After 10 hours, it was calcined at 580° C. for 6 hours, taken out, and cooled to room temperature. The obtained catalyst was denoted as Catalyst A. Put in a desiccator for later use.
Embodiment 2
[0041] Embodiment 2 prepares catalyst B
[0042] 45g ZRP molecular sieve (SiO 2 / Al 2 o 3 >200), 45g of silicon oxide, 10g of magnesium oxide and 2g of turnip powder were mixed, and after mixing, 80ml of nitric acid was added. Other operating methods are the same as in Example 1. The resulting catalyst is denoted Catalyst B.
Embodiment 3
[0043] Embodiment 3 prepares catalyst C
[0044] 45g ZRP molecular sieve (SiO 2 / Al 2 o 3 >200), 45g of silicon oxide, 10g of zirconia and 2g of turnip powder were mixed, and after mixing, 80ml of nitric acid was added. Other operating methods are the same as in Example 1. The resulting catalyst is denoted Catalyst C.
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