一种高比表面积竹炭的分段控温炭化工艺
By using a segmented temperature-controlled carbonization process, gradient activation and high-temperature repair combined with pulsed ammonia treatment, the problem of insufficient specific surface area and strength of bamboo charcoal was solved, and high-performance nitrogen-doped bamboo charcoal was prepared, which is suitable for water treatment, air purification and energy storage.
CN121651364BActive Publication Date: 2026-07-17JIANGXI JINQI BIOENERGY CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- JIANGXI JINQI BIOENERGY CO LTD
- Filing Date
- 2025-12-30
- Publication Date
- 2026-07-17
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Figure SMS_1
Abstract
本发明公开了一种高比表面积竹炭的分段控温炭化工艺，属于生物质炭材料制备技术领域。该工艺包括：催化预处理、低温预碳化、中温梯度活化炭化、高温快速稳定化、可控冷却与脉冲式表面修饰五个阶段；其通过磷酸或氯化锌溶液预处理构建活性位点；采用二氧化碳浓度梯度调控的活化方式，协同构建多级孔结构；在活化后快速切换至高温惰性气氛进行碳骨架修缮，解决强度与孔隙率的矛盾；最后在特定温度窗口进行脉冲式氮掺杂，实现功能化改性。本发明工艺制得的竹炭兼具高比表面积、高强度、丰富的介孔比例及氮元素掺杂，在吸附、储能及催化领域具有优异应用性能。
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