Abstract
Mesoporous aluminosilicates (MAs) with excellent hydrothermally stability obtained by self-assembly of Y precursor is emerging as the most important materials in catalytic cracking of heavy oil molecules. The author of the present investigation has used the crystal seeds method in synthesis of MAs for the first time. However, crystal-assisted method still suffers from low utilization efficiency of crystal seeds (CS), P123 and water. In this study, Sodium dodecyl sulfate (SDS) has been introduced into seed-assisted method at high P123 and CS concentration. In this strategy, composite micelles would be formed due to the interaction of hydrophobic chains in SDS and PPO chains of P123 (also with the hydrophobic surface of CS). As a direct consequence, both the solubility of micelles and the dispersity of CS would be enhanced. As a result of this, mesostructured ordering would be improved with greatly increased utilization efficiency of P123, CS and water.
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