Comparative life cycle and economic assessments of various value-added chemicals' production via electrochemical CO₂ reduction

Abstract

Herein, life cycle and economic assessments are conducted to evaluate the energy impacts, environmental impacts, and economic benefits of various value-added chemicals' (C1- and C2-) production via electrochemical CO2 reduction based on flow cells.

Designing N‐Confused Metalloporphyrin‐Based Covalent Organic Frameworks for Enhanced Electrocatalytic Carbon Dioxide Reduction

“…[ 10,11 ] Specifically, the requirement of a good CO 2 RR catalyst is to maintain high current density at low overpotential, with high selectivity and durability. [ 12,13 ]…”

“…[10,11] Specifically, the requirement of a good CO 2 RR catalyst is to maintain high current density at low overpotential, with high selectivity and durability. [12,13] Metalloporphyrin (MN 4 -Por, Figure 1a), with unique metal-N 4 (MN 4 ) units as active sites, has been demonstrated as effective homogeneous catalyst for CO 2 RR. [14][15][16][17][18][19][20][21][22][23] However, the large-scale application of such materials has been limited due to low current density and difficult recovery.…”

Solar‐Driven Continuous CO2 Reduction to CO and CH4 using Heterogeneous Photothermal Catalysts: Recent Progress and Remaining Challenges

“…This not only helps to reduce CO 2 emissions but may also create new economic opportunities. [7][8][9] However, it is important that these transformations are as efficient as possible, requiring a minimal energy input and producing minimal waste. To achieve this goal, researchers must adopt the principles of green chemistry and engineering, [10] which emphasize the design of chemical processes that are inherently safe, efficient, and sustainable.…”

“…In this context, chemists and chemical engineers have an important role to play in developing new synthetic methodologies that can capture and use CO 2 and convert it into added‐value compounds. This not only helps to reduce CO 2 emissions but may also create new economic opportunities [7–9] …”

Techno-economic Analysis and Carbon Footprint Accounting for Industrial CO2 Electrolysis Systems

“…Techno-economic analysis (TEA) has demonstrated that the cost of electricity and selectivity of products are key to determining the economics of eCO 2 RR products. Unfortunately, most assessments simplify the product separation process using only the cost of ordinary distillation for the liquid-phase products, ignoring the fact that the separation scheme will be different for different products. − Therefore, which kind of separation strategy and how to reduce the energy consumption should be considered. Furthermore, despite the rapid growth of industrial CO 2 electrolysis technology, whether this process truly yields negative CO 2 emissions remains a puzzle.…”