Glycolic acid and formic acid production from pyrolysis oil water-soluble fraction by catalytic oxidation

Luo, Dan; Wang, Yin; Han, Depeng; He, Han

doi:10.1016/j.ces.2021.116644

Cited by 10 publications

(13 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Levoglucosan and GA were the two major substances in the pyrolysis oil fraction and were responsible for the oxidative production of glycolic acid and formic acid. 142 The starch contained in old corrugated cardboard papermaking wastewater was converted to glycolic acid with a yield of 12.9 wt % (145 °C, 2 h). The kinetic study showed that the PMocatalyzed oxidation of starch followed a first-order reaction, and the apparent activation energy of monosugar to glycolic acid was 117.2 kJ/mol.…”

Section: Keto-alcoholsmentioning

confidence: 99%

“…PMo was also employed to catalyze the conversion of the water-soluble fraction of pyrolysis oil from rice straw (purified by activated carbon adsorption) to glycolic acid (31.7%) and formic acid (23.6%). Levoglucosan and GA were the two major substances in the pyrolysis oil fraction and were responsible for the oxidative production of glycolic acid and formic acid . The starch contained in old corrugated cardboard papermaking wastewater was converted to glycolic acid with a yield of 12.9 wt % (145 °C, 2 h).…”

Section: C–c Bond Cleavage Transformations Of Carbohydratesmentioning

confidence: 99%

See 1 more Smart Citation

Toward Value-Added Chemicals from Carbohydrates via C–C Bond Cleavage and Coupling Transformations

Zhang,

Liu

et al. 2024

ACS Catal.

View full text Add to dashboard Cite

Renewable carbohydrates are nearly inexhaustible libraries of chemical building blocks, and significant research efforts have been devoted to their valorization to valuable chemicals in the past decades. The commonly recognized main transformation routes include dehydration and C−C bond cleavage pathways, which lead to the production of conventional platform chemicals such as 5-hydroxymethylfurfural/furfural, lactic acid/lactates, and so on. With the huge availability of carbohydrates on earth, the production of other fine chemicals is very attractive but remains sparse. This Review therefore emphasizes the utilization strategies of carbohydrates based on in situ C−C bond cleavage to lower carbon fragments, such as glycolaldehyde and erythrose, and their subsequent transformations, e.g. hydrogenation, hydrogenolysis, oxidation, nucleophilic addition, and amination. The isolation of reactive intermediates is avoided, leading to the formation of a variety of "unconventional" useful scaffolds, such as ethylene glycol, ethanol, keto-alcohols, glycolic acid, formic acid, C4 skeleton α-hydroxy esters, N-containing compounds, etc. Inspired by the transformation of active intermediates, the direct conversion of monosugars with similar structures through C−C coupling to furan-based chemicals is also briefly reviewed. The primary focus of this Review is to show the spectacular range of fine chemicals that can be accessed from carbohydrates via C−C bond cleavage and coupling approaches. A summary of the reviewed works and some opportunities and challenges within this attractive field are underlined for future research in sugar chemistry.

show abstract

Section: Keto-alcoholsmentioning

confidence: 99%

Section: C–c Bond Cleavage Transformations Of Carbohydratesmentioning

confidence: 99%

Toward Value-Added Chemicals from Carbohydrates via C–C Bond Cleavage and Coupling Transformations

Zhang,

Liu

et al. 2024

ACS Catal.

View full text Add to dashboard Cite

show abstract

“…Acetic acid, propanoic acid, levulinic acid, and fatty acids are acids that are commonly present in the highest proportions in bio-oil [127,128]. The recuperation of acetic acid from bio-oil is described by some as a viable approach to bio-oil valorization besides fuel [130], as is the case for glycolic and formic acids [131].…”

Section: Acidsmentioning

confidence: 99%

Bio-Oil: The Next-Generation Source of Chemicals

et al. 2022

View full text Add to dashboard Cite

Bio-oil, although rich in chemical species, is primarily used as fuel oil, due to its greater calorific power when compared to the biomass from which it is made. The incomplete understanding of how to explore its chemical potential as a source of value-added chemicals and, therefore, a supply of intermediary chemical species is due to the diverse composition of bio-oil. Being biomass-based, making it subject to composition changes, bio-oil is obtained via different processes, the two most common being fast pyrolysis and hydrothermal liquefaction. Different methods result in different bio-oil compositions even from the same original biomass. Understanding which biomass source and process results in a particular chemical makeup is of interest to those concerned with the refinement or direct application in chemical reactions of bio-oil. This paper presents a summary of published bio-oil production methods, origin biomass, and the resulting composition.

show abstract

“…have been developed to convert lignocellulosic biomass into fuels and value-added chemicals. 2 Glycolaldehyde (GA) is an important platform molecule which can be derived from renewable biomass resources, 3,4 and can be further converted into a broad range of useful chemicals such as ethylene glycol, 5 ethylene diamines, 6 and glycolic acid, 7 through catalytic hydrogenation, reductive amination, and oxidation, respectively.…”

Section: Introductionmentioning

confidence: 99%