用于生物基石墨和液态碳化合物生产的工艺设计和技术经济分析
Jose A Gonzalez-Aguirre1, Shaikat Chandra Dey1, William Joe Sagues2
1Department of Forest Biomaterials, College of Natural Resources, North Carolina State University, 2820 Faucette Dr, Raleigh, NC 27607 USA.
Bioresource technology
|August 22, 2025
概括
生物质可以转化为生物石材,这是离子电池的可持续阳极材料,为化石石墨提供了具有成本竞争力的替代品. 综合生物炼油厂显示出有前途的经济表现,减少了供应链风险.
科学领域:
- 可持续材料科学
- 化学工程
- 可再生能源技术
背景情况:
- 全球对离子电池的需求预计将在2028年增加一倍.
- 目前对非可再生资源的依赖造成了供应链的脆弱性.
- 开发可持续的替代品对于储能和电动交通至关重要.
研究的目的:
- 评估从纤维素生物质生产生物石的技术和经济可行性.
- 评估热解生物油升级为生物石和燃料级碳化合物.
- 确定生物石与传统石墨的成本竞争力.
主要方法:
- 生物炼油工艺的技术经济分析.
- 热解和生物油升级模拟.
- 敏感性和风险分析以评估最低售价等经济指标.
- 过程产量优化和热整合评估.
主要成果:
- 生物质生产在技术上是可行的,在经济上也是有竞争力的.
- 在综合生物炼油场景 (D案例) 中,阳极级生物石的最低销售价 (MSP) 为3.3美元/千克,利率为27%.
- 工艺产量是影响MSP的最关键因素.
- 热集成可以满足生物炼油厂36%的电力需求.
结论:
- 综合生物炼油厂为离子电池生产生物基阳极材料提供了可持续和成本效益的途径.
- 生物石是化石石墨的可行替代品,减轻了供应链的风险.
- 虽然生物燃料的联合生产提高了经济效益,但与单独生产生物石材相比,它带来了更高的投资风险.
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