Incomplete catalytic oxidation of furan compounds (review)

Slavinskaya, V. A.; Kreile, D. R.; Dzilyuma, E. E.; Sile, Dz.

doi:10.1007/bf00470186

Cited by 14 publications

(12 citation statements)

References 14 publications

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“…In literature reports, furan was frequently proposed as the intermediate in the vapor phase oxidation of furfural. [8][9][10][11][12] In this catalytic system, decarbonylation may also possibly take place prior to other steps. Thus, another plausible mechanism can happen as pathway III in Scheme 1.…”

Section: Mechanistic Studies Of Furfural Oxidationmentioning

confidence: 99%

“…However, continuing studies on transformations of furfural to maleic anhydride were very limited, possibly due to its poor competition with the petroleum based ongoing processes. Recently, Ojeda applied VO x /Al 2 O 3 as a solid catalyst for vapor phase oxidation of furfural, which provides a considerably high yield (73%) of maleic anhydride under 593 K. 8 Combining earlier mechanistic studies using solid catalysts like Sn(VO 3 ) 4 and promoted V-Mo-P like P 2 O 5 , Fe 2 (MoO 4 ) 3 , MoO 3 , V 2 O 5 , [9][10][11][12] Ojeda proposed that decarbonylation is the first step in furfural vapor phase oxidation, which generates furan as the intermediate, followed by further oxidation of furan to maleic anhydride.…”

Section: Introductionmentioning

confidence: 98%

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Catalytic aerobic oxidation of renewable furfural to maleic anhydride and furanone derivatives with their mechanistic studies

et al. 2014

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Section: Mechanistic Studies Of Furfural Oxidationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%

Catalytic aerobic oxidation of renewable furfural to maleic anhydride and furanone derivatives with their mechanistic studies

et al. 2014

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“…21 MA can also be renewably manufactured from vapor-phase oxidation of furfural. [22][23][24][25] High selectivity has been reported in the literature however the catalyst efficiency is very low leading to an extremely small feed stream that can be used. To leverage the MA yield and the catalyst efficiency, the experimental results discovered in Ref.…”

Section: Introductionmentioning

confidence: 97%

Phthalic anhydride production from hemicellulose solutions: Technoeconomic analysis and life cycle assessment

2015

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The process synthesis, technoeconomic analysis, and life cycle assessment (LCA) of a novel route for phthalic anhydride (PAN) production from hemicellulose solutions are presented. The production contains six steps including dehydration of xylose to furfural, reductive decarbonylation of furfural to furan, oxidation of furfural to maleic anhydride (MA), Diels-Alder cycloaddition of furan, and MA to exo24,10-dioxa-tricyclo[5.2.1.0]dec-8-ene-3,5-dione followed by dehydration to PAN in the presence of mixture of methanesulfonic acid and acetic anhydride (AAN) which is converted to acetyl methanesulfonate and acetic acid (AAD), and dehydration of AAD to AAN. The minimum selling price of PAN is determined to be $810/metric ton about half of oil-based PAN. The coproduction of high-value products is essential to improve the economics. Biomass feedstock contributes to the majority of cost. LCA results shows that biomass-based PAN has advantages over oil-based PAN to reduce climate change and fossil depletion however requires more water usage.

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“…Renewable routes based on the oxidation of furfural (FUR) in either gas [3][4][5] or liquid phase [6][7][8] have been technically demonstrated by different research groups. Gas phase oxidation presents the advantage of using low-cost air at atmospheric pressure instead of either highpressure O 2 [6,7] or more expensive H 2 O 2 [8,9] practiced for liquid phase oxidation of furfural.…”

Section: Introductionmentioning

confidence: 99%

“…In addition, different vanadium oxidebased catalysts (V oxide, V-Mo and V-Bi mixed oxides) supported on a variety of supports (pumice, asbestos, and alumina) have been tested. [3][4][5][17][18][19][20]. Unfortunately, most of the reports lack experimental and technical details, and a few of them date back to the first half of the 20 th century.…”

Section: Introductionmentioning

confidence: 99%

Gas phase oxidation of furfural to maleic anhydride on V 2 O 5 /γ-Al 2 O 3 catalysts: Reaction conditions to slow down the deactivation

Alonso-Fagúndez

Ojeda

Mariscal

et al. 2017

Journal of Catalysis

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An alumina-supported vanadium oxide catalyst (13.9 wt. % of vanadium oxide) has been tested on the gas phase oxidation of furfural and characterised by different techniques. These studies have showed that catalyst unavoidably deactivates by deposition of maleates and resins over the surface. Full regeneration is accomplished by burning off these deposits at 773 K. The studies have also demonstrated that if the primary contact occurs at temperatures at which furfural conversion is low and then the temperature is increased in a low to high temperature mode, an intense deposition of maleates and resins takes place and the catalyst is rapidly deactivated. The increasing of the temperatures does not result in removal of deposits but accelerates the deposition. Under this protocol the yield of maleic anhydride never exceeded 30 %, irrespective of the reaction conditions (temperature and O 2 /furfural mol ratio). On the contrary if the catalyst first contacts the reaction mixture at high oxidising potential, then the rate of maleate and resins deposition is much slower and so is the deactivation rate and the catalyst can display a higher yield of MA for longer period of time. A high oxidizing potential can be accomplished at high reaction temperature (close to full conversion). Higher oxidising potential 2 at a given high temperature can be accomplished by increasing the O 2 /furfural mol ratio. Thus, for example, first contacting the catalyst at 593 K (full conversion), 1 vol. % of furfural and an O 2 /furfural mol ratio = 10, maleic anhydride yield of 68 % was initially obtained and was still greater than 50 % after 15 h on stream. When contacting at 573 with 1 vol. % furfural and 29 vol. % of O 2 , the maleic anhydride yield was initially close to 75 % and above 60 after 15 h.

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Incomplete catalytic oxidation of furan compounds (review)

Cited by 14 publications

References 14 publications

Catalytic aerobic oxidation of renewable furfural to maleic anhydride and furanone derivatives with their mechanistic studies

Catalytic aerobic oxidation of renewable furfural to maleic anhydride and furanone derivatives with their mechanistic studies

Phthalic anhydride production from hemicellulose solutions: Technoeconomic analysis and life cycle assessment

Gas phase oxidation of furfural to maleic anhydride on V 2 O 5 /γ-Al 2 O 3 catalysts: Reaction conditions to slow down the deactivation

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