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家庭混合塑料废物衍生吸附剂用于CO2捕获:可行性研究

Emmanuel Dan¹, Alan J McCue², Davide Dionisi¹

¹School of Engineering, Chemical Processes and Materials Research Group, University of Aberdeen, Aberdeen, AB24 3UE, UK.

Journal of environmental management

|March 4, 2024

概括

使用微波激活,从家用塑料废物中生产活性碳,大大提高了二氧化碳捕获潜力,并相比传统方法减少了能源消耗. 这种废物价值化方法支持循环经济.

科学领域:

材料科学材料科学材料科学
环境工程环境工程
化学工程是化学工程的重要组成部分.

背景情况:

家庭混合塑料废物 (HMPW) 构成一个重大的环境挑战.
活性炭 (AC) 对于碳捕获技术至关重要.
开发可持续的方法来从废物中产生交流电是必不可少的.

研究的目的:

调查从HMPW产生AC用于碳捕获的可行性.
为了比较微波辅助激活与传统的热激活.
评估激活方法对交流电产量,能源消耗和二氧化碳捕获能力的影响.

主要方法:

直接碳化HMPW,然后进行化学激活.
使用了传统的热激活和微波辅助激活.
评估了AC特性,包括产量,热稳定性和二氧化碳吸收能力.

主要成果:

与传统 (71%) 相比,微波辅助激活产生了更高的AC (78%).
微波激活消耗的能量显著减少 (0.19千瓦时比0.98千瓦时).
微波激活的AC显示出优越的动态 (1.62 mmol/g) 和平衡CO2吸收 (1.58-2.88 mmol/g).

结论:

微波辅助激活是一种高效的方法,可以从HMPW中产生AC,具有增强的碳捕获能力.
这一过程为塑料废物管理和推进循环经济提供了可持续的途径.
这项研究开创了微波加热用于直接将HMPW转化为AC的碳捕获技术.

关键词:

活性炭是一种活性炭.吸附方式吸附方式吸附方式碳捕获是为了捕获碳.家庭混合塑料废物家庭混合塑料废物微波激活方式微波激活方式

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