关于CO2被煤炭吸附的影响因素和热效应的实验研究2
Lin Li1, Junhong Si2, Zongxiang Li1
1College of Safety Science and Engineering, Liaoning Technical University, Fuxin, Liaoning 123000, China.
ACS omega
|June 26, 2023
概括
在goaf中利用二氧化碳 (CO2) 有助于减轻环境问题并防止煤炭火灾. 煤中的二氧化碳吸附能力随着更高的温度和更大的颗粒大小而下降,影响了注入优化.
科学领域:
- 地球和环境科学 地球和环境科学
- 化学工程是化学工程的重要组成部分.
- 材料科学 材料科学 材料科学
背景情况:
- 二氧化碳 (CO2) 的利用对于解决环境问题和防止goaf (开采区) 煤炭自燃至关重要.
- 主要的二氧化碳利用方法包括吸附,扩散和透,吸附显著影响二氧化碳消耗,需要优化注射.
- 了解煤炭的二氧化碳吸附对于有效的环境管理和矿山安全至关重要.
研究的目的:
- 为了研究不同温度和压力条件下不同颗粒大小的煤的二氧化碳吸附能力.
- 分析影响煤炭二氧化碳吸附的因素,包括温度,压力和颗粒大小.
- 研究二氧化碳吸附的热效应及其对粗环境的影响.
主要方法:
- 使用自主开发的吸附实验装置来测量二氧化碳吸附能力.
- 测试了三种不同颗粒大小的煤样本.
- 在30-60°C的温度范围和0.1-0.7 MPa的压力范围进行了实验.
主要成果:
- 二氧化碳吸附能力随着压力增加而增加,但随着温度和颗粒大小而减少.
- 二氧化碳吸附特性曲线与温度无关,但与颗粒大小有所不同.
- 煤炭的二氧化碳吸附能力与大气压下的温度具有后勤功能.
结论:
- 二氧化碳分子之间的相互作用力是煤上二氧化碳吸附的主要因素,超过了煤炭表面的异质性和异质性.
- 优化二氧化碳注入非常重要,因为它通过吸附的方式消耗.
- 对二氧化碳消散的气体注入方程的理论改进为基于二氧化碳的防火和灭火提供了新的策略.
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