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使用地质碳酸盐作为吸收剂的直接CO2转换为综合碳捕获转换战略的吸收剂

Xiaoyu Shi¹, Yang Yang¹, Xu Liu¹

¹State Key Laboratory of Green Papermaking and Resource Recycling, School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.

ACS applied materials & interfaces

|September 19, 2025

概括

本研究提出了一种新的,节能的碳捕获和利用 (CCU) 方法,通过使用天然碳酸盐将二氧化碳转化为酸盐. 这种综合方法为工业排放提供了可持续的途径.

科学领域:

化学工程是化学工程的重要组成部分.
催化剂是一种催化剂.
环境科学环境科学

背景情况:

传统的碳捕获和利用 (CCU) 方法由于高的再生和材料循环成本而耗费大量能源.
天然碳酸盐气候变化有效地封存二氧化碳,为可持续的CCU提供灵感.

研究的目的:

制定一个综合的,节能高效的二氧化碳捕获和转化战略.
为了利用丰富的,低成本的碳酸盐作为吸收剂来捕获二氧化碳.
为了在现场实现捕获的二氧化碳的化,形成.

主要方法:

采用一式系统,使用地质上丰富的碳酸盐作为吸收剂.
使用铜 (CoCu) 催化剂在位化吸收的二氧化碳.
在140°C以稀释的二氧化碳流 (50,000 ppm) 进行的二氧化碳捕获和转化.
执行密度函数理论 (DFT) 计算以阐明反应机制.

主要成果:

从二氧化碳捕获和化中获得了21%的酸盐产量.
证明了碳酸盐吸收的二氧化碳在现场的有效转化.
确定了一种协同作用的CoCu催化剂,促进了CO2化.
DFT的计算显示,Cu+/Cu0接口是H2激活和成型生产的活跃地点.

结论:

拟议的综合战略为CCU提供了一个可持续和节能的途径.
CoCu催化剂和基于碳酸盐的捕获系统显著提高了CO2转化效率.
这种方法通过模仿自然的碳捕获过程来推进CCU技术.

关键词:

二氧化碳转化转换方法在 CoCu 催化剂.碳捕获碳捕获碳捕获碳酸盐是一种碳酸盐.格式格式格式格式

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