在使用微流体学的断裂系统中理解碳矿化机制
Haylea Nisbet1,2, Ruoyu Li1,3, Prakash Purswani1
1Earth and Environmental Sciences Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA. ppurswani@lanl.gov.
Lab on a chip
|July 21, 2025
概括
了解破碎岩石中的碳矿化是永久地下储存的关键. 较高的注入速率增加了死胡同通道中的矿物沉,这对于有效的碳捕获和储存至关重要.
科学领域:
- 地质化学 地质化学
- 地质地质地质地质地质地
- 环境科学 环境科学
背景情况:
- 在岩石和超岩石中碳矿化提供了永久的地下碳储存.
- 由于岩石透性的限制,裂纹网络对于这一过程至关重要.
研究的目的:
- 研究影响断裂网络溶解-沉机制.
- 了解水力动力学元件在碳矿化中的作用.
主要方法:
- 高压微流体利用具有形通道的天然岩石微型.
- 石膏碳化作为快速动力学的模拟反应.
- 为反应式运输配合高准确度的数值模拟.
主要成果:
- 注射速率显著影响石膏碳化速率和性质.
- 较高的流速促进更深的降水线进入死胡同的道.
- 较低的流量产生多孔的阿拉贡石;较高的流量产生石.
结论:
- 流速对于破裂介质中高效的碳矿化至关重要.
- 化学,机械和水力动力学过程的合对于评估储存潜力至关重要.
- 需要对地下断裂生成技术进行进一步研究.
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