Ni-silicalite-1 molecular sieve, preparation method and application thereof
By preparing Ni-Silicalite-1 molecular sieve, the problems of low selectivity and poor catalyst stability of 2,5-tetrahydrofurandiethanol were solved, achieving high efficiency and stability under mild reaction conditions, making it suitable for industrial catalytic applications.
CN119100410BActive Publication Date: 2026-07-24CHINA PETROLEUM & CHEMICAL CORP +1
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA PETROLEUM & CHEMICAL CORP
- Filing Date
- 2023-06-09
- Publication Date
- 2026-07-24
AI Technical Summary
Technical Problem
In the existing technology, the low selectivity, harsh reaction conditions, or poor catalyst cycle stability of 2,5-tetrahydrofurandiethanol hinder its promotion in industrial applications.
Method used
Using Ni-Silicalite-1 molecular sieves, which have elongated morphology and a specific Ni/NiO molar ratio, it was prepared by in-situ synthesis and crystallization and used to catalyze the conversion of 5-hydroxymethylfurfural to 2,5-tetrahydrofurandiethanol under mild reaction conditions.
Benefits of technology
It achieves efficient conversion of 5-hydroxymethylfurfural and high product selectivity, and the catalyst has good stability during recycling, making it suitable for industrial applications.
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Figure CN119100410B_ABST
Abstract
The application discloses Ni-Silicalite-1 molecular sieve and a preparation method and application thereof. The Ni-Silicalite-1 molecular sieve has a strip shape, the length of the Ni-Silicalite-1 molecular sieve crystal is less than 15 microns, the length-width ratio is 3-9, and the average thickness is 200-580 nm. The Ni-Silicalite-1 molecular sieve has the characteristics of high efficient conversion of 5-hydroxymethylfurfural and high selectivity of a product 2,5-tetrahydrofuran dimethyl alcohol under mild reaction conditions, and outstanding stability of the catalyst in cyclic use.
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