Selective Oxidation Catalysis: Opportunities and Challenges

Hermans, Ive; Spier, Eyal; Neuenschwander, Ulrich; Turrà, Natascia; Baiker, Alfons

doi:10.1007/s11244-009-9268-3

Cited by 134 publications

(76 citation statements)

References 136 publications

(135 reference statements)

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“…Identified products were vanillin, acetovanillone and homovanillic acid (Figure 2 15 °C min −1 until the temperature reached 270 °C and held for 1 min. The injector and detector were set to 300 °C and the split ratio was set to 150:1.…”

Section: Catalyst Testing and Oxidation Productsmentioning

confidence: 99%

Oxidative Depolymerization of Lignin Using Supported Niobium Catalysts

et al. 2017

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Abstract:Valorization of lignin into aromatics has driven researchers for decades. In this research, niobium was deposited on oyster shells (OSNC) and carbon rods (CRNC) and tested as a catalyst for depolymerization of lignin. Catalysts (2%, 5%, and 8% loading) were synthesized via wet impregnation. Batch experiments were performed at 95 • C, using 8 g of lignin, and 1 g of catalyst. Our research indicates that niobium supported catalysts are effective in partial oxidation of lignin. Maximum vanillin concentration for OSNC was found to be 86.25 mg L −1 (0.1 wt%) at 5% niobium whereas, as for CRNC, maximum vanillin concentration was found to be 139.40 mg L −1 (0.17 wt%) at 2% niobium loading. Addition of hydrogen peroxide into the batch reactor decreased the concentration of vanillin production.

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Section: Catalyst Testing and Oxidation Productsmentioning

confidence: 99%

Oxidative Depolymerization of Lignin Using Supported Niobium Catalysts

et al. 2017

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“…The oxidizing transformation of petroleum hydrocarbons to afford respective oxygen containing compounds is estimated as effective approach to the rational processing of oil hydrocarbons raw stock [7]. A special place have synthetic and oxysynthetic petroleum acids (SPA и OSPA) among the products of oxidative expansion of petroleum hydrocarbons .…”

Section: Introductionmentioning

confidence: 99%

“…Thus, the growing demand to oil acid and at the same time the limited natural resources, as well as the fact that they exist in the form of complex mixtures, makes the production of synthetic petroleum acids relevant and important. It is known that oxidation of naphthene-paraffinic hydrocarbons of petroleum fractions is the most promising way of synthesis synthetic petroleum acids [4][5][6][7]. The works on creation of new selective catalysts possessing high activity for oxidation of oil fractions are continuing.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Liquid-Phase Oxidation of Naphthene-Paraffinic Hydrocarbons of Balakhany Oil

Abbasov¹,

Afandiyeva²,

Aliyeva³

et al. 2015

JAC

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Liquid-phase aerobic oxidation of naphthene-paraffinic hydrocarbons at 217-330 о С of diesel fraction of Balakhany oils in the presence of the mixtures of Mn, Cr salts of natural petroleum acids (MeNPA) has been investigated. The catalytic o xidation process is realized for 7 hours at temperature 135-140 0 C in a barbotage reactor. Samples were taken every hour and oxidized product was separated by composition in accordance with known methods. Mechanism of oxidation process of naphthene-paraffinic hydrocarbons has been studied by IR-spectroscopy. It has been found that, after 5 hours oxidation of naphthene-paraffinic hydrocarbons the yield of obtaining synthetic petroleum acids rich 16,5%, the yield of oxysynthetic petroleum acids -18%. The changes of the optical density of a carbonyl and a hydroxyl groups depending on the time were studied. It was found that the oxidation reaction should be conducted within 6 hours, as D1713(C=O) and D941(OH) after 6 hours decrease and it's probably connected with beginning decomposition process of the acids and oxyacids.

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“…Ultimately, heterogeneous catalysts may offer significant advantages over homogeneous analogues in respect of initial catalyst cost, product separation, and metal recovery and recyclability [62]. Catalyst development can thus no longer be considered simply a matter of reaction kinetics, but as a clean technology wherein all aspects of process design, such as solvent selection, batch/ flow operation, catalyst recovery and waste production and disposal are balanced [63]. The efficacy of Platinum Group Metals (PGMs) surfaces towards the liquid phase oxidation of alcohols has been known for over 50 years [64], and the development of heterogeneous platinum selox catalysts (and more recently coinage metals such as gold [65,66]) the subject of recent reviews [39,[67][68][69] hence only palladium selox catalysis is described herein.…”

Section: Introductionmentioning

confidence: 99%

Catalysing sustainable fuel and chemical synthesis

Lee

2014

Appl Petrochem Res

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Concerns over the economics of proven fossil fuel reserves, in concert with government and public acceptance of the anthropogenic origin of rising CO 2 emissions and associated climate change from such combustible carbon, are driving academic and commercial research into new sustainable routes to fuel and chemicals. The quest for such sustainable resources to meet the demands of a rapidly rising global population represents one of this century's grand challenges. Here, we discuss catalytic solutions to the clean synthesis of biodiesel, the most readily implemented and low cost, alternative source of transportation fuels, and oxygenated organic molecules for the manufacture of fine and speciality chemicals to meet future societal demands.

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Selective Oxidation Catalysis: Opportunities and Challenges

Cited by 134 publications

References 136 publications

Oxidative Depolymerization of Lignin Using Supported Niobium Catalysts

Oxidative Depolymerization of Lignin Using Supported Niobium Catalysts

Investigation of Liquid-Phase Oxidation of Naphthene-Paraffinic Hydrocarbons of Balakhany Oil

Catalysing sustainable fuel and chemical synthesis

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