Recent advances in the electrochemical production of chemicals from methane

Richard, Derek; Huang, Yu-Chao; Morales‐Guio, Carlos G.

doi:10.1016/j.coelec.2021.100793

Cited by 12 publications

(12 citation statements)

References 50 publications

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“…[7,8] Current technology for producing ethylene primarily centers around naphtha steam-cracking, employing high temperature steam-cracking process as a primary method (>750 °C), which incurs large energy losses and produces significant amounts of CO 2 . [3,9,10] Direct catalytic conversion of methane to ethylene allows for skipping of multiple steps that must be completed during steam cracking. For example, direct nonoxidative coupling of methane (NOCM) features methane coupling without requiring an oxygen source into ethylene and aromatic compounds.…”

Section: Doi: 101002/admi202200796mentioning

confidence: 99%

Highly Stable Doped Barium Niobate Based Electrocatalysts for Effective Electrochemical Coupling of Methane to Ethylene

Denoyer

Benavidez

Garzón

et al. 2022

Adv Materials Inter

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Methane conversion into value‐added products such as olefins and aromatics is gaining increased attention in the wake of new natural gas reserve discoveries. Electrochemical oxidative coupling of methane (E‐OCM) provides better product selectivity as the product distribution can be controlled by applied potential as well as the oxide ion flux. Here a new catalyst based on Mg and Fe codoped barium niobate perovskites is reported. The prepared perovskites show excellent chemical stability in CH4‐rich environments up to 925 °C while showing methane activation properties from 600 °C. E‐OCM measurements indicate an ethylene production rate of 277 µmol cm−2 h−1 with a faradaic efficiency of 20% at 1 V and durable operation for six continuous days. X‐ray photoelectron spectroscopic measurements indicate significant Nb valency reorganization that can be the reason for its chemical stability. Nevertheless, the surface area of the catalyst is significantly lower and requires improvements in synthesis methodologies to improve catalytic activity further. The exceptional chemical stability of this perovskite material under methane exposure at high temperatures has significant importance as this material can be used as a catalyst and/or support in a wide variety of applications relevant for efficient energy conversion and storage.

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Section: Doi: 101002/admi202200796mentioning

confidence: 99%

Highly Stable Doped Barium Niobate Based Electrocatalysts for Effective Electrochemical Coupling of Methane to Ethylene

Denoyer

Benavidez

Garzón

et al. 2022

Adv Materials Inter

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“…The conditions for these Detailed Cases are summarized in Table . RA is featured more because it has been the most widely discussed in literature, − ,− making it likely to be the preferred industrial pathway. The detailed breakdown shows four major elements: FCOP, ACCR, Electrical, and Byproduct (the latter two comprise the VCOP).…”

Section: Visualizing Profitable Regions To Set Current and Voltage Ta...mentioning

confidence: 99%

“…This has led scientists and engineers to propose alternative pathways. Some continue to be based on thermochemical cycles, but biocatalytic − and electrocatalytic ,,− routes have also emerged. Electrocatalytic pathways have been particularly attractive in the literature as they boast direct integration with low-cost renewable electricity ,, as well as modular reactor and plant design.…”

mentioning

confidence: 99%

“…Some continue to be based on thermochemical cycles, but biocatalytic − and electrocatalytic ,,− routes have also emerged. Electrocatalytic pathways have been particularly attractive in the literature as they boast direct integration with low-cost renewable electricity ,, as well as modular reactor and plant design. Both criteria have been used to claim that electrochemical paths will not only be cheaper than thermal processes at small production scales but also will be profitable.…”

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confidence: 99%

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Practical Assessment for At-Scale Electrochemical Conversion of Methane to Methanol

2023

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Electrochemical methane-to-methanol technologies are regarded as one of the most attractive options to improve greenhouse gas emissions while providing a pathway to produce one of the most important bulk industrial chemicals. In recent years, several reports demonstrated individual cells producing methanol and other C-1 products while proclaiming that these cells will inevitably lead to industrial adoption at small sites with flared, stranded natural gas. However, the practical realization of these systems relies on finding operating regimes that can lead to profitability, which has not been well studied in the literature to date. Here we provide detailed calculations of process profitability over 4000 cases for electrochemical methane-to-methanol processes while considering two different overall reactions, multiple production scales, a wide range of operating conditions (voltage, current density), and various electrical costs. Finally, the analysis shows that the technology requires substantial improvement before expecting profit, and targets are determined for future performance, providing direction for R&D in this potentially transformational area.

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“…In previous review articles, the effects of electrocatalysts, reaction conditions, and cell congurations on the formation of nal products have already been well discussed and summarized in tables. 20,26,[63][64][65][66][67][68][69][70][71][72][73] In this review, we mainly focused on the theoretical approach to interpret the CH 4 partial oxidation process on active sites in mild conditions, and overviewed the recent research results.…”

Section: Electrocatalytic Ch 4 Conversionmentioning

confidence: 99%

Understanding (photo)electrocatalysis for the conversion of methane to valuable chemicals through partial oxidation processes

2022

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Recent advances in the electrochemical production of chemicals from methane

Cited by 12 publications

References 50 publications

Highly Stable Doped Barium Niobate Based Electrocatalysts for Effective Electrochemical Coupling of Methane to Ethylene

Highly Stable Doped Barium Niobate Based Electrocatalysts for Effective Electrochemical Coupling of Methane to Ethylene

Practical Assessment for At-Scale Electrochemical Conversion of Methane to Methanol

Understanding (photo)electrocatalysis for the conversion of methane to valuable chemicals through partial oxidation processes

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