Sulphated Zirconia Supported on Cordierite Honeycomb Monolith for Effective Synthesis of Solketal from Acetalisation of Glycerol with Acetone

Vasantha, Vanagoor T.; Venkatesha, N. J.; Shamshuddin, S. Z. Mohamed; D'souza, Joyce; Reddy, Bongu G. Vijayasimha

doi:10.1002/slct.201702186

Cited by 17 publications

(7 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Recently, we have reported the synthesis of solketal over sulfated zirconia, which took longer reaction times of 100 min (Vasantha et al, 2018). Mordenite and Amberlyst-35 have also been used as catalytic material (Priya et al, 2017;Nanda et al, 2016) and were active in the synthesis of solketal but showed marginal deactivation with time.…”

Section: Comparison Of the Catalytic Activity Of Other Catalysts In Tmentioning

confidence: 99%

Synthesis of solketal over zirconia based acid catalysts

Reena

Shamshuddin

Vasantha

et al. 2019

Bangladesh J. Sci. Ind. Res.

View full text Add to dashboard Cite

Microwave assisted synthesis of ‘solketal’ over zirconia (ZrO2) and its modified forms (Mo(VI)/ZrO2, W(VI)/ZrO2 and V(V)/ZrO2) coated on honeycomb monoliths is reported. The solid acids were coated on honeycomb monoliths by ‘dip and dry’ method and characterized for their surface acidity, crystalinity, functionality, morphology and elemental analysis by using techniques such as NH3-Temperature programmed desorption (NH3-TPD), powder X-ray diffraction (PXRD), Fourier transform-infrared spectroscopy (FTIR), Scanning electron microscopy (SEM) and Inductively coupled plasma-optical emission spectroscopy (ICP-OES). The honeycomb monoliths coated with solid acids were employed as catalysts in the condensation of glycerol with acetone to synthesize solketal under microwave irradiation conditions. The reaction conditions such as molar ratio of the reactants (glycerol: acetone), reaction temperature, reaction time were studied to obtain highest possible yield of solketal with greater selectivity. The catalytic activity of honeycomb catalytic material was compared with the powder forms of the catalysts. 98% yield of solketal with 98% selectivity was achieved over Mo(VI)/ZrO2 coated on a honeycomb monolith in a very shorter reaction time of 8 min at 60 oC under microwave heating. These honeycomb catalytic material were found to be easily reactivable and reusable atleast for 6 reaction cycles. Hence, honeycomb catalysts were found to be efficient, economical and effective in the synthesis of value added chemical such as solketal. A possible mechanism for the formation of solketal is proposed. Bangladesh J. Sci. Ind. Res.54(1), 31-38, 2019

show abstract

Section: Comparison Of the Catalytic Activity Of Other Catalysts In Tmentioning

confidence: 99%

Synthesis of solketal over zirconia based acid catalysts

Reena

Shamshuddin

Vasantha

et al. 2019

Bangladesh J. Sci. Ind. Res.

View full text Add to dashboard Cite

show abstract

“…One of the most promising routes involves the production of cyclic acetals from the condensation of gly and carbonyl As a result, the identification of simple and effective processes able to convert gly into value-added chemicals unveil tremendous potential and can give substantial contribution to the sustainability of the whole biodiesel industry [2,4]. One of the most promising routes involves the production of cyclic acetals from the condensation of gly and carbonyl compounds, with applications as fuel oxygenates or chemical intermediates [2,4,5]. Glycerol acetals can work as octane enhancer into regular gasoline, or can reduce particulate emissions of diesel fuel [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

An Expedient Catalytic Process to Obtain Solketal from Biobased Glycerol

et al. 2021

View full text Add to dashboard Cite

Developing simple and effective chemistry able to convert industrial waste streams into valuable chemicals is a primary contributor to sustainable development. Working in the context of biodiesel production, we found that plain bisulfate on silica (SSANa, 3.0 mmol/g) proved to be an optimal catalyst to convert glycerol into solketal. With the assistance of a proper anhydrification technique, isolated yields of 96% were achieved working in mild conditions, on 100 g scale.

show abstract

“…Monolithic structures pose an attractive alternative to conventionally prepared catalyst pellets or powders due to a number of superior properties. Monoliths can offer better mass transfer, a low pressure drop, thermal stability and good mechanical strength over conventional catalyst pellets or powders ,,,. For real industrial applications, catalysts are usually made into a shaped substrate rather than a powder state.…”

Section: Introductionmentioning

confidence: 99%

“…Monoliths can offer better mass transfer, a low pressure drop, thermal stability and good mechanical strength over conventional catalyst pellets or powders. [11,12,13,14] For real industrial applications, catalysts are usually made into a shaped substrate rather than a powder state. Cordierite (2MgO⋅2Al 2 O 3 ⋅5SiO 2 ) monolith is widely used as catalyst supports due to its low pressure drop, [15] superior thermal stability and high attrition resistance.…”

Section: Introductionmentioning

confidence: 99%

Mn‐Fe‐Ce Coating onto Cordierite Monoliths as Structured Catalysts for NO Catalytic Oxidation

Han

Tang

et al. 2019

ChemistrySelect

View full text Add to dashboard Cite

A series of Mn‐Fe−X (X=Ce, W, Cu, Co) mixed oxides doped on cordierite monoliths as structured catalysts based monolithic for NO oxidation has been investigated. The results showed that Mn−Fe‐Ce/Al2O3/CC sample exhibited the best activity, for which a maximal NO conversion (72%) could be attained at 250 °C with the GHSV of 5971 h−1. The effects of the preparation parameters including the catalyst preparation methods and the coating material on the catalytic performance for NO catalytic oxidation was also investigated. The XRD and SEM‐EDS also indicated the coating material had a significant influence on specific surface area, surface morphology, which resulted in diﬀerences in the catalytic activity of NO catalytic oxidation. The NO+O2‐TPD results indicated that different general procedures to prepare Mn−Fe‐Ce based monolithic catalysts had a great influence on the catalytic oxidation activity of NO and Mn−Fe‐Ce/Al2O3/CC catalyst was beneficial to NO adsorption and NO2 desorption, which increased activity of catalytic oxidation of NO. The physisorption of N2 revealed that the catalyst synthesized with Al2O3 presented a higher BET specific surface area, more abundant pore structure, and better dispersion of catalysts’ active components which were favorable for catalytic oxidation reaction of NO.

show abstract

Sulphated Zirconia Supported on Cordierite Honeycomb Monolith for Effective Synthesis of Solketal from Acetalisation of Glycerol with Acetone

Cited by 17 publications

References 36 publications

Synthesis of solketal over zirconia based acid catalysts

Synthesis of solketal over zirconia based acid catalysts

An Expedient Catalytic Process to Obtain Solketal from Biobased Glycerol

Mn‐Fe‐Ce Coating onto Cordierite Monoliths as Structured Catalysts for NO Catalytic Oxidation

Contact Info

Product

Resources

About