Production of glycerol carbonate using a novel Ti-SBA-15 catalyst

Devi, Parmila; Das, Umashankar; Dalai, Ajay K.

doi:10.1016/j.cej.2018.04.030

Cited by 84 publications

(29 citation statements)

References 34 publications

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“…Pristine mesoporous SBA-15 had typical texture with 818 m 2 /g surface area (S BET ), pore volume (V p ) of 1.05 cm 3 /g and average pore diameter (from corresponding PSD, Figure 1(b)) of 5.78 nm. Those properties nicely corresponded to expected values for SBA-15 matrices (500< S BET >1300 m 2 /g, 0.82< V p >1.69 cm 3 /g) commonly reported in the literature for such type of mesostructured SiO 2 (Devi et al, 2018;Schwanke et al, 2018). However, all Ti-modified solids at various contents had decreased surface area as to that of pristine SBA-15.…”

Section: Materials Textural Propertiessupporting

confidence: 87%

“…Pt impregnated solids showed three main reflections at 2θ values of 39.8, 46.1 and 67.8°assigned to interplanar distances of ( 111), ( 200) and ( 220 We considered that organic remains that could be present on our mixed materials could play a determining role on that fact. Indeed, organic residua from Ti and Si alkoxides used during SBA-15 and corresponding Ti-modified solids synthesis usually could remain occluded in calcined materials (Escobar et al, 2000;Devi et al, 2018). Those organic species could contribute to Pt reduction during hightemperature annealing.…”

Section: X-ray Difracctionmentioning

confidence: 99%

“…In this context, Ti-modified SBA-15 matrices have attracted lots of attention due to their excellent acid properties and mechanical and chemical resistance as well, much superior as to those of other siliceous mesostructured solids (Iglesias et al, 2008). For instance, those materials has been studied in glycerol transesterification with dimethyl carbonate to glycerol carbonate (Devi et al, 2018). They have also been efficiently applied in high-quality biodiesel production from unrefined canola oil (Sharma et al, 2014) and in phenol photocalytic decomposition in liquid phase (Wang et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

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Improving platinum dispersion on SBA-15 by titania addition

Morales-Hernández¹,

Ujat²,

Pacheco-Sosa³

et al. 2019

Rev.Mex.Ing.Quim.

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Section: Materials Textural Propertiessupporting

confidence: 87%

Section: X-ray Difracctionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Improving platinum dispersion on SBA-15 by titania addition

Morales-Hernández¹,

Ujat²,

Pacheco-Sosa³

et al. 2019

Rev.Mex.Ing.Quim.

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“…SEM (Fig. 5) reveals that the morphology of Zr-Ti-SBA-15 is similar to that of SBA-15, which is composed of many "rope-like" domains with relatively uniform sizes of~1 um and further aggregates into "wheat-like" macrostructures, indicating that the original shape of SBA-15 is reserved in Zr-Ti-SBA-15 [31,32]. On the contrary, the morphology of Zr-Ti-SBA-15-C 0 is partly distorted, which is mainly attributed to the uneven distribution of Zr and Ti.…”

Section: Tem and Sem Characterizationmentioning

confidence: 92%

Homogeneous Zr and Ti co-doped SBA-15 with high specific surface area: preparation, characterization and application

2019

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A facile synthesis procedure is proposed to prepare homogeneous Zr and Ti co-doped SBA-15 (Zr-Ti-SBA-15) with high specific surface area of 876.0 m 2 g − 1 . Based on "masking mechanism" from tanning, lactic acid was used as masking agent to obtain the uniform distribution of Zr and Ti species in the SBA-15 framework. The obtained materials were characterized by powder X-ray diffraction (XRD), nitrogen adsorption-desorption isotherms, scanning electron microscope (SEM), transmission electron microscope (TEM) and X-ray photoelectron (XPS). The results reveal that in mesoporous materials, the presence of lactic acid gives rise to the uniform distribution of Zr and Ti species. The adsorption equilibrium and kinetic studies of Zr-Ti-SBA-15 materials show that the adsorption process conforms to the Langmuir isotherm and pseudo-second-order kinetic model, respectively. Regenerational experiments show that the Zr-Ti-SBA-15 displays a significant adsorption ability for methylene blue (MB) (up to 291.6 mg/g), along with good reusability, indicating promising potentials of commercialization. Methodologically, this work provides a wide range of possibilities for further development of SBA-15 based on bimetallic and sewage disposal.

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“…To solve this problem, one of the meaningful methods was using glycerol to synthesize high value-added chemical products. 4,5 A good case in point was using glycerol to synthesize glycerol carbonate (GC). Since GC has the adventages of low combustibility, good biodegradability, low toxicity, low water solubility, high viscosity and high boiling point, it has been used as a reaction solvent and emulsifier in the field of material synthesis.…”

Section: Introductionmentioning

confidence: 99%

Water glass derived catalyst for the synthesis of glycerol carbonate via the transesterification reaction between glycerol and dimethyl carbonate

Wang

Okoye

et al. 2019

JSCS

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Water glasses with different modulus (mole ratio of SiO 2 to Na 2 O) were applied as a raw material to prepare five solid base catalysts for the synthesis of glycerol carbonate (GC) by the transesterification reaction between glycerol and dimethyl carbonate (DMC). The structure and properties of the five water glass-derived catalysts were investigated by XRD, FT-IR, FESEM, BET and acid-base titration methods. The catalysts with relatively low modulus, including 1.0, 1.5 and 2.0, presented good catalytic abilities, among which the catalyst derived from water glass with 2.0 modulus (WG-2.0) was chosen as the optimal catalyst in the synthesis of GC. This was because WG--2.0 showed the highest BET surface area, relatively high total basicity, and needed a less amount of NaOH during the preparation process. In the optimization experiments, this catalyst exhibited good catalytic ability with the glycerol conversion of 96.3 % and GC yield of 94.1 % under the condition of glycerol to DMC mole ratio of 1:4, WG-2.0 amount of 4 wt. %, reaction temperature of 348 K and reaction time of 90 min. Furthermore, the reusability experiment of WG-2.0 was also conducted and the results indicated that WG--2.0 could be reused five times without significant reduction in its catalytic ability.

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Production of glycerol carbonate using a novel Ti-SBA-15 catalyst

Cited by 84 publications

References 34 publications

Improving platinum dispersion on SBA-15 by titania addition

Improving platinum dispersion on SBA-15 by titania addition

Homogeneous Zr and Ti co-doped SBA-15 with high specific surface area: preparation, characterization and application

Water glass derived catalyst for the synthesis of glycerol carbonate via the transesterification reaction between glycerol and dimethyl carbonate

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