一种生物质动态梯度水热液化制备富烃生物油的方法
By precisely controlling the temperature of the hydrothermal liquefaction process, the main reaction is promoted and the side reaction is suppressed, thereby increasing the hydrocarbon content in bio-oil and solving the problem of low hydrocarbon content in existing technologies. This achieves efficient and low-cost bio-oil preparation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
- Filing Date
- 2025-06-18
- Publication Date
- 2026-07-17
AI Technical Summary
The low hydrocarbon content in bio-oils produced by existing hydrothermal liquefaction technology leads to poor product stability and difficulty in subsequent refining processes, thus limiting the industrial application of bio-oils.
By precisely controlling the temperature of the hydrothermal liquefaction process, including sequential first heat treatment, first cooling treatment, second heat treatment, third heat treatment, and second cooling treatment, ensuring that the temperature of the third heat treatment is higher than that of the first heat treatment, different temperature stages are used to promote the main reaction and inhibit the side reaction, thus preparing hydrocarbon-rich bio-oil.
It increases the hydrocarbon content in bio-oil to over 83.4%, simplifies the process, reduces production costs, and is suitable for non-catalytic upgrading routes.
Smart Images
Figure CN120648491B_ABST