A catalyst for preparing olefins by direct synthesis gas method and its preparation method and application
By preparing a catalyst containing a Si oxide support and Fe100CoaAl2aCsbOx active components, the problem of low yield in the direct synthesis of olefins from syngas was solved, and the effect of efficient conversion of C2-C20 olefins in syngas products was achieved.
CN117920225BActive Publication Date: 2026-05-29CHINA PETROLEUM & CHEMICAL CORP +1
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA PETROLEUM & CHEMICAL CORP
- Filing Date
- 2022-10-24
- Publication Date
- 2026-05-29
AI Technical Summary
Technical Problem
The yield of olefins prepared by the direct synthesis of syngas in existing technologies is not high, especially the proportion of C2-C20 olefins is insufficient.
Method used
A catalyst is used, which uses Si oxide as a support and has Fe100CoaAl2aCsbOx as active components. Through specific preparation methods including precipitation, mixing, spray drying and calcination, the distribution of Co and Al is controlled to form a microspherical catalyst.
Benefits of technology
It improves the CO conversion rate and C2-C20 olefin selectivity of the direct synthesis of olefins from syngas, and achieves the effect of efficiently converting syngas products containing a high content of C2-C20 olefins.
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Smart Images
Figure BDA0003905901010000131
Abstract
The application provides a catalyst for preparing olefins from synthesis gas, and a preparation method and application thereof, and belongs to the technical field of catalysts. The catalyst comprises the following components in parts by weight: A) 40-60 parts of a carrier, wherein the carrier is an oxide of Si; B) 60-40 parts of an active component loaded on the carrier, wherein the active component has the following chemical formula: Fe 100 Co a Al 2a Cs b O x , wherein a is 20-50, b is 1-10, and x is the total number of oxygen atoms required to satisfy the valence of each element in the catalyst. In the reaction of preparing olefins from synthesis gas, the catalyst has good CO conversion rate and C2-C 20 olefin selectivity.
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