Synthesis of mesoporous zeolite catalysts from kaolin via low-temperature tailoring and its applications
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Kaolin clay mineral is transformed into cage-type catalysts with acid sites through a hydrothermal process at three differenttemperatures namely 100, 125, and 150 °C using N-propyl amine at three different time durations between 24 to 48 hours. Thecatalysts were supported with silicon dioxide. Supported and unsupported catalysts were characterized by SEM, TEM, FTIR,BET Surface area Analysis, and TGA. The catalysts synthesized indicated the presence of nearly uniform-shaped particleswith good surface area and thermal stability. The acid site concentration in the catalysts is improving upon synthesis at lowtemperature and limited time duration. The catalysts were found to be effective in improving the selectivity for the cyclizationof citronellal to isopulegol.
Abstract
Kaolin clay mineral is transformed into cage-type catalysts with acid sites through a hydrothermal process at three differenttemperatures namely 100, 125, and 150 °C using N-propyl amine at three different time durations between 24 to 48 hours. Thecatalysts were supported with silicon dioxide. Supported and unsupported catalysts were characterized by SEM, TEM, FTIR,BET Surface area Analysis, and TGA. The catalysts synthesized indicated the presence of nearly uniform-shaped particleswith good surface area and thermal stability. The acid site concentration in the catalysts is improving upon synthesis at lowtemperature and limited time duration. The catalysts were found to be effective in improving the selectivity for the cyclizationof citronellal to isopulegol.
참고문헌 (23)
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