首页|Development and Catalytic Cracking Performance of Ultra-stable Y Zeolite Rich in Secondary Pores
Development and Catalytic Cracking Performance of Ultra-stable Y Zeolite Rich in Secondary Pores
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A novel ultra-stable zeolite,NSZ,rich in secondary pores was developed through the combination of gas-phase and mild hydrothermal methods.This zeolite was successfully tested in an industrial setting for the first time in the world.The pore structure characteristics of the NSZ zeolite prepared for industrial use were analyzed and characterized using BET.The results indicate a significant increase in the secondary pore volume of NSZ zeolite compared to the existing ultra-stable zeolite HSZ-5,which is produced through a conventional gas-phase method.The average secondary pore volume to total pore volume ratio in NSZ zeolite was found to be 58.96%higher.The catalytic cracking performance of NSZ zeolite was evaluated.The results showed that the NSC-LTA catalyst,with NSZ as the active component,outperformed the HSC-LTA catalyst with HSZ-5 zeolite in terms of obtaining more high-value products(gasoline and liquefied petroleum gas)during the hydrogenated light cycle oil processing.Additionally,the NSC-LTA catalyst showed a significant improvement in coke selectivity.
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