RESEARCH PROGRESS ON PREPARATION AND APPLICATION OF AMORPHOUS SILICA-ALUMINA MATERIALS

Abstract

Abstract: Amorphous silica-alumina (ASA) is a composite material formed by Al₂O₃ and SiO₂ with large pore size, pore volume and suitable acidity, which has been used in crude oil processing. The development of high performance ASA materials is of great significance in improving the catalyst activity and increasing the selectivity of target products. The effects of different preparation methods on the structure and acidity of ASA materials, the causes of the acidity of ASA materials and the influencing factors were analyzed. The applications of ASA materials in hydrocracking, catalytic cracking, and other catalytic reaction processes were investigated to provide guidelines for the preparation of high performance ASA materials. The main directions of future research on ASA materials were proposed in the light of current development trends.

Key words: amorphous silica-alumina, preparation method, structure, acidity, catalytic reaction

References

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