电解
电化学
膜
化学
离子交换
电解水
过程(计算)
催化作用
工艺工程
化学工程
无机化学
废物管理
电极
离子
工程类
计算机科学
有机化学
生物化学
物理化学
电解质
操作系统
作者
Matthias Heßelmann,Hannah Minten,T. Geißler,Robert Keller,André Bardow,Matthias Weßling
标识
DOI:10.1002/adsu.202300077
摘要
Abstract Reducing carbon dioxide to value‐added chemicals by electrolysis is a promising strategy to substitute fossil‐based processes. Research on CO 2 electrolysis has vastly progressed, focusing on catalysis and electrode design, leaving an essential question on the central part of the electrolyzer: Which type of ion exchange membrane is best suited for CO 2 electrolysis from an economic perspective? To address this question, holistic process optimization of CO 2 reduction and product purification is applied. The findings demonstrate that CO 2 electrolysis with an anion exchange membrane shows competitive production costs for CO of 796 €/t CO , outperforming cation exchange and bipolar membranes. Unlike often described, the CO 2 pumping effect does not significantly impair the economics but offers an efficient indirect regeneration of dissociated CO 2 . Furthermore, the results emphasize selective reduction of CO 2 rather than co‐electrolysis of CO 2 and H 2 O. While pointing to a positive economic perspective, life‐cycle assessment highlights the need to minimize CO 2 emissions related to electricity consumption and incomplete CO 2 utilization.
科研通智能强力驱动
Strongly Powered by AbleSci AI