24-03-2022 дата публикации
Номер: US20220088580A1
Принадлежит:
A solid acid catalyst has a macropore specific volume of about 0.30-0.50 ml/g, a ratio of macropore specific volume to specific length of catalyst particles of about 1.0-2.5 ml/(g·mm), and a ratio of specific surface area to length of catalyst particles of about 3.40-4.50 m/mm. The macropore refers to pores having a diameter of more than 50 nm. An alkylation catalyst is based on the solid acid catalyst and can be used in alkylation reactions. The solid acid catalyst and alkylation catalyst show an improved catalyst service life and/or trimethylpentane selectivity when used in the alkylation of isoparaffins with olefins. 1. A solid acid catalyst , having a macropore specific volume in a range of about 0.30-0.50 ml/g , preferably about 0.30-0.40 ml/g , more preferably at least about 0.35 ml/g; a ratio of macropore specific volume to specific length of catalyst particles in a range of about 1.0-2.5 ml/(g·mm) , preferably about 1.1-1.8 ml/(g·mm); a ratio of specific surface area to length of catalyst particles in a range of about 3.40-4.50 m/mm , wherein the macropore refers to pores having a diameter of greater than 50 nm.2. The solid acid catalyst according to claim 1 , wherein the solid acid catalyst further has one or more of the following characteristics:a specific length of catalyst particles in a range of about 0.15-0.4 mm, preferably about 0.18-0.36 mm, more preferably about 0.20-0.32 mm;a total pore specific volume of at least about 0.40 ml/g, preferably at least about 0.45 ml/g; and{'sup': 2', '2, 'a specific surface area of not less than about 500 m/g, preferably not less than about 550 m/g.'}3. The solid acid catalyst according to claim 1 , wherein the solid acid catalyst comprises a solid acid component and a matrix material claim 1 , and wherein claim 1 , based on the total weight of the solid acid component and the matrix material claim 1 , the solid acid catalyst comprises about 2-98 wt % of the solid acid component and about 2-98 wt % of the matrix ...
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