Name : [in Japanese]
Location : [in Japanese]
Date : October 30, 2024 - October 31, 2024
Pages 28-29
The coal ash of Quang Ninh (QN) coal contains a large amount of Al2O3 and SiO2. In this study, we examined the effects of components contained in actual QN coal ash but not required for the preparation of zeolite on the preparation of zeolite and the catalytic cracking reaction. At 165°C and 96h, slight crystals were seen even at a SiO2/Al2O3 ratio of 6.5, and as the SiO2/Al2O3 ratio increased, the crystals grew. The intensity of XRD signals at SiO2/Al2O3 ratio of 26 approached that of commercial ZSM-5 with SiO2/Al2O3 ratio of 24. At SiO2/Al2O3 ratio of 39, the intensity of XRD signals was higher than that of commercial ZSM-5. When these catalysts were tested in the catalytic cracking of LDPE, conversions of LDPE decreased in comparison with that of conventional ZSM-5 probably because coal ash included large amounts of alkali and alkaline earth metals which neutralized acid sites of zeolite.
