Formaldehyde production using methanol and heterogeneous solid catalysts: A comprehensive review

Mahdi, Hilman Ibnu; Ramlee, Nurfadhila Nasya; Santos, Danilo Henrique da Silva; Giannakoudakis, Dimitrios A.; Oliveira, Leonardo Hadlich de; Selvasembian, Rangabhashiyam; Azelee, Nur Izyan Wan; Bazargan, Alireza; Meili, Lucas

doi:10.1016/j.mcat.2023.112944

Cited by 14 publications

(11 citation statements)

References 223 publications

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“…So, it seems that we have behaviour for the monolayer materials which is like that for bulk doping, but it never reaches quite the same level of high formaldehyde selectivity across the temperature range that it does for bulk doping when the latter is at/above the stoichiometric level for Fe 2 (MoO 4 ) 3 .…”

Section: Varying the Fe : Mo Ratio: Surface Dopingmentioning

confidence: 73%

“…Fe 2 O 3 , MoO 3 , Fe 2 (MoO 4 ) 3 The catalysts made are listed in Table 1 below, with Mo : Fe ratio and molar fraction of cations.…”

Section: Resultsmentioning

confidence: 99%

“…[2] It is thus an extremely important process and formaldehyde is used in a wide variety of products, especially in furniture manufacture as ureaformaldehyde resins. [3] Considering the new urgency for environmentally friendly ways of producing the chemicals that society needs to function, there is the possibility to make methanol, and therefore formaldehyde, in new ways. This can be by replacing environmentally damaging methane reforming to produce hydrogen with renewable energy-produced hydrogen using electrolysis or other methods.…”

Section: Introductionmentioning

confidence: 99%

“…A demonstrator plant is being constructed in Sweden [4] following on from a methanol demonstrator built next to a coal-fired power station in Germany using CO 2 from that source, [5] and a number of others are in development and construction. [6][7][8][9] One of the main catalytic routes to formaldehyde is by selective oxidation over iron molybdate catalysts, [3,[10][11][12][13] and this material is the subject of this paper. We know much about the role of this material in the catalysis, but we know relatively little about the distribution of active sites, what the active surface is like at the atomic scale and the nature of those sites.…”

Section: Introductionmentioning

confidence: 99%

“…*calculated from the specific surface area SA/W as r = 3/ρSA, where r is in m, ρ is in g/m3 and W is in g.…”

mentioning

confidence: 99%

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Ensemble Effects on Methanol Oxidation to Formaldehyde on Ferric Molybdate Catalysts

Bowker,

House,

Brookes

et al. 2024

ChemCatChem

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The properties of Mo‐doped iron oxide are compared with those of the single oxides of Fe and Mo, and with stoichiometric ferric molybdate for the selective oxidation of methanol. It is found that Mo segregates to the surface of the iron oxide at low loadings, while at higher loadings, but below the stoichiometric ratio, presents layers of ferric molybdate at the surface. The relationship between bulk loading and surface Mo is explored, and it is concluded that the reactivity is dominated by ensemble effects. Simple modelling indicates that four or more Fe cation ensembles are required to combust methanol to CO2, ensembles of two Mo cations are required for selective oxidation to formaldehyde, whereas it seems that isolated single sites of either Fe or Mo produce CO.

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Section: Varying the Fe : Mo Ratio: Surface Dopingmentioning

confidence: 73%

“…Fe 2 O 3 , MoO 3 , Fe 2 (MoO 4 ) 3 The catalysts made are listed in Table 1 below, with Mo : Fe ratio and molar fraction of cations.…”

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…*calculated from the specific surface area SA/W as r = 3/ρSA, where r is in m, ρ is in g/m3 and W is in g.…”

mentioning

confidence: 99%

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Ensemble Effects on Methanol Oxidation to Formaldehyde on Ferric Molybdate Catalysts

Bowker,

House,

Brookes

et al. 2024

ChemCatChem

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Methanolierung von Olefinen: Niederdruck‐Synthese von Alkoholen durch die formale Addition von Methanol an Olefine

Stahl,

Vossen,

Popp

et al. 2024

Angewandte Chemie

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Methanolation of olefins is introduced as a new low‐pressure synthetic pathway to C1 elongated alcohols. Formally, H3COH is added to the C=C bond in a 100% atom efficient manner. Mechanistically, the overall transformation occurs as a tandem reaction sequence by combining the dehydrogenation of methanol to syngas at a CO:H2 ratio of 1:2 with subsequent hydroformylation to the corresponding aldehyde and its final hydrogenation to the alcohol. The dehydrogenation and hydrogenation steps are catalysed by a Mn/pincer complex, while the hydroformylation is accomplished by a Rh/phosphine catalyst. Using 1‐octene as prototypical substrate, a yield of 80% nonanol was achieved with a ratio of 93:7 of linear to branched alcohols and turnover numbers (TONRh) of more than 17 000 could be obtained in relation to the precious metal Rhodium. The integrated catalytic system provides direct access to alcohols from olefins and “green” methanol, avoiding the handling of pressurized CO and H2 and the use of specialized high‐pressure equipment as the process conditions do not exceed 10 bar with partial pressures of syngas in the range of only 1‐2 bar.

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Methanolation of Olefins: Low‐Pressure Synthesis of Alcohols by the Formal Addition of Methanol to Olefins

Stahl,

Vossen,

Popp

et al. 2024

Angew Chem Int Ed

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Formaldehyde production using methanol and heterogeneous solid catalysts: A comprehensive review

Cited by 14 publications

References 223 publications

Ensemble Effects on Methanol Oxidation to Formaldehyde on Ferric Molybdate Catalysts

Ensemble Effects on Methanol Oxidation to Formaldehyde on Ferric Molybdate Catalysts

Methanolierung von Olefinen: Niederdruck‐Synthese von Alkoholen durch die formale Addition von Methanol an Olefine

Methanolation of Olefins: Low‐Pressure Synthesis of Alcohols by the Formal Addition of Methanol to Olefins

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