| abstract |
Disclosed are a solid acid catalyst, and a preparation method and application thereof. The solid acid catalyst has a macropore specific volume of about 0.30-0.50 ml/g, and a ratio of the macropore specific volume to the specific length of the catalyst particles is about 1.0-2.5 ml /(g·mm), the ratio of the specific surface area to the length of the catalyst particle is about 3.40-4.50 m 2 /mm, wherein the macropores refer to pores with a diameter greater than 50 nm. Also disclosed is an alkylation catalyst based on the solid acid catalyst and its application in the alkylation reaction. When the solid acid catalyst and the alkylation catalyst are used in the alkylation reaction of isoparaffins and olefins, they have improved catalyst life and/or trimethylpentane selectivity. |