Electrocatalytic Hydrogenation

Lessard, Jean

doi:10.1007/978-1-4419-6996-5_345

Cited by 15 publications

(18 citation statements)

References 26 publications

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“…45 Topics including electrogenerated acid, 46 electrogenerated base, 47 electrochemical enzymatic reactions, 48 and electrocatalytic hydrogenation will not be detailed. 49 …”

Section: Introductionmentioning

confidence: 99%

Synthetic Organic Electrochemical Methods Since 2000: On the Verge of a Renaissance

2017

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“…45 Topics including electrogenerated acid, 46 electrogenerated base, 47 electrochemical enzymatic reactions, 48 and electrocatalytic hydrogenation will not be detailed. 49 …”

Section: Introductionmentioning

confidence: 99%

Synthetic Organic Electrochemical Methods Since 2000: On the Verge of a Renaissance

2017

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“…An alternative upgrading process via electrochemical reduction, referred to as electrocatalytic hydrogenation (ECH), offers important advantages,s uch as in situ generation of reactive adsorbed hydrogen (via water or proton reduction), milder operatingp ressure and temperature, easier control of product selectivity and conversionb yt uning the electrode potential or the current density (potentiostatic or galvanostatic operation), and lower waste and by-product generation. [6][7][8] Therefore, ECH is expected to be more selectivet ot he targeted products and cleanerw ith less coke formation than the thermal process, resulting in higher energy and carbon utilization efficiencies. [7,8] In addition, ECH could also be integrated with renewablee lectricity to provide an overall greener process foru tilizing bioresources.…”

Section: Introductionmentioning

confidence: 99%

Electrocatalytic Hydrogenation of Guaiacol in Diverse Electrolytes Using a Stirred Slurry Reactor

Wijaya

Grossmann‐Neuhaeusler

Putra

et al. 2019

ChemSusChem

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Electrocatalytic hydrogenation (ECH) of guaiacol was performed in a stirred slurry electrochemical reactor (SSER) using 5 wt % Pt/C catalyst in the cathode compartment. Different pairs of acid (H2SO4), neutral (NaCl), and alkaline (NaOH) catholyte–anolyte combinations separated by a Nafion® 117 cation exchange membrane, were investigated by galvanostatic and potentiostatic electrolysis to probe the electrolyte and proton concentration effect on guaiacol conversion, product distribution, and Faradaic efficiency. The acid–acid and neutral–acid pairs were found to be the most effective. In the case of the neutral–acid pair, proton diffusion and migration through the membrane from the anolyte to the catholyte supplies the protons required for ECH. Typically, the two major hydrogenation products were cyclohexanol and 2‐methoxycyclohexanol. However, ECH at constant cathode superficial current density (−182 mA cm−2) and higher temperature (i.e., 60 °C) favored a pathway leading mainly to cyclohexanone. The guaiacol conversion routes were affected by temperature‐ and cathode potential‐dependent surface coverage of adsorbed hydrogen radicals generated through electroreduction of protons.

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“…Another form of upgrading that produces a stable bio-oil uses electricity to remove oxygen. A few studies (Lessard, 2014;Li et al, 2014;Moutet, 1992;Wang, Lee, Olarte, & Zacher, 2016;Zhang, Zhang, & Zhong, 2018) have explored the use of electrocatalytic hydrogenation (ECH) as an approach to stabilize and upgrade biomass pyrolysis liquids to form chemicals and fuels. Herein, we review a fast pyrolysis process with electrochemical deoxygenation, wherein the biomass undergoes fast pyrolysis forming char and bio-vapor, which are separated via a cyclone to isolate the vapor and pass it through a solid oxide membrane reactor (EDOx; Milobar, Hartvigsen, & Elangovan, 2015).…”

Section: Ex Situ Catalytic Pyrolysis With Electricity (Edox)mentioning

confidence: 99%

A review of thermochemical upgrading of pyrolysis bio‐oil: Techno‐economic analysis, life cycle assessment, and technology readiness

2019

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Technologies for upgrading fast pyrolysis bio‐oil to drop‐in fuels and coproducts are under development and show promise for decarbonizing energy supply for transportation and chemicals markets. The successful commercialization of these fuels and the technologies deployed to produce them depend on production costs, scalability, and yield. To meet environmental regulations, pyrolysis‐based biofuels need to adhere to life cycle greenhouse gas intensity standards relative to their petroleum‐based counterparts. We review literature on fast pyrolysis bio‐oil upgrading and explore key metrics that influence their commercial viability through life cycle assessment (LCA) and techno‐economic analysis (TEA) methods together with technology readiness level (TRL) evaluation. We investigate the trade‐offs among economic, environmental, and technological metrics derived from these methods for individual technologies as a means of understanding their nearness to commercialization. Although the technologies reviewed have not attained commercial investment, some have been pilot tested. Predicting the projected performance at scale‐up through models can, with industrial experience, guide decision‐making to competitively meet energy policy goals. LCA and TEA methods that ensure consistent and reproducible models at a given TRL are needed to compare alternative technologies. This study highlights the importance of integrated analysis of multiple economic, environmental, and technological metrics for understanding performance prospects and barriers among early stage technologies.

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Electrocatalytic Hydrogenation

Cited by 15 publications

References 26 publications

Synthetic Organic Electrochemical Methods Since 2000: On the Verge of a Renaissance

Synthetic Organic Electrochemical Methods Since 2000: On the Verge of a Renaissance

Electrocatalytic Hydrogenation of Guaiacol in Diverse Electrolytes Using a Stirred Slurry Reactor

A review of thermochemical upgrading of pyrolysis bio‐oil: Techno‐economic analysis, life cycle assessment, and technology readiness

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