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铁生物质支持催化剂的生命周期评估,用于菲舍尔·特洛普施合成

Muhammad Amin¹, Hamad Hussain Shah², Abdul Basit Naveed³

¹Interdisciplinary Research Center for Hydrogen Technologies and Carbon Management (IRC-HTCM), King Fahd University of Petroleum and Minerals (KFUPM), Dhahran, Saudi Arabia.

Frontiers in chemistry

|April 11, 2024

概括

本研究介绍了用于费舍尔-托普施合成的基于铁的生物质支持催化剂的首次生命周期评估 (LCA). 活性碳支显著影响全球变暖潜力.

科学领域:

催化剂是一种催化剂.
化学工程是化学工程的重要组成部分.
环境科学环境科学

背景情况:

生物质支持的铁催化剂用于费舍尔-托普施合成 (FTS),将合成气转化为液体燃料.
关于这些催化剂的生命周期评估 (LCA),存在重大知识差距.
废物生物质作为活性炭 (AC) 支的来源,提高了催化剂的性能.

研究的目的:

对一种以铁为基础的生物质支持的催化剂进行全面的生命周期评估 (LCA),用于合成气转化.
量化与FTS中催化剂的合成和应用相关的环境影响.
确定有助于整体环境足迹的关键阶段.

主要方法:

利用废弃物生物质制备活性炭 (AC) 作为催化剂支.
在固定床反应堆中执行了费舍尔-托普施合成反应.
使用OpenLCA 1.10.3软件与现场实验室数据进行环境影响评估建模.

主要成果:

基于铁的生物质支持催化剂的合成导致全球变暖潜力 (GWP) 为1.235E+01公斤二氧化碳相当.
活性炭 (AC) 阶段占总GWP的52%,而催化剂前体制备贡献了48%.
对人类的毒性评估给出了1.98E-02公斤的1,4-二二 (1,4-DB) 相当的总得分.

结论:

活性碳支持阶段是生物质支持的铁催化剂对全球变暖潜力的主要贡献者.
这个生命周期评估为优化费舍尔-托普施合成中的铁基催化剂的环境性能提供了至关重要的数据.
进一步的研究应侧重于减少AC生产和催化剂准备阶段对环境的影响.

关键词:

菲舍尔·特洛普什的合成方法生物质的生物质是生物质.催化剂是一种催化剂.环境影响环境影响环境影响生命周期评估生命周期评估

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