Solketal Production from Glycerol Ketalization with Acetone: Catalyst Selection and Thermodynamic and Kinetic Reaction Study

Moreira, Miguel N.; Faria, Rui P. V.; Ribeiro, Ana M.; Rodrigues, Alı́rio E.

doi:10.1021/acs.iecr.9b03725

Cited by 56 publications

(52 citation statements)

References 61 publications

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“…Methanol is used in excess so as to enhance the conversion of glycerol into solketal because using methanol does not have any signicant effect on the reaction kinetics. 24 In order to check the stability of the catalyst and effectiveness of the active sites of the catalyst, a reusability study was carried out. The catalyst was separated from the reaction mixture aer the completion of the reaction by ltering the reaction mixture using lter paper.…”

Section: Activity and Reusability Of The Catalystmentioning

confidence: 99%

“…4 The global production of glycerol is expected to reach 5.2 million tons by 2020. 5 Thus, this abundance of glycerol needs to be treated in order to improve the economic viability of the biodiesel industry. Hence, today researchers focus is on developing techniques for converting glycerol into numerous useful products to deal with the oversupply of glycerol.…”

Section: Introductionmentioning

confidence: 99%

“…In the present study, the main focus is on the development of a catalyst using corn cob for effective biomass utilization and providing a cleaner pathway for the production of solketal from glycerol via ketalization reaction. The ketalization is the reaction of the glycerol with acetone in the presence of acid agents as catalysts for the formation of two ketal species, a vemembered ring and another six-membered ring, 5 both these are extensively used as cetane improver and diesel additives. 13 This is the rst-ever report of complete structural characterization of a corncob based activated carbon and to study its effectiveness for solketal production.…”

Section: Introductionmentioning

confidence: 99%

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Rib shaped carbon catalyst derived from Zea mays L. cob for ketalization of glycerol

et al. 2020

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Section: Activity and Reusability Of The Catalystmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Rib shaped carbon catalyst derived from Zea mays L. cob for ketalization of glycerol

et al. 2020

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“…The chemical reaction for the production of two ketal species is shown in Fig. 1 11 . Solketal is a ring-shaped di-ether that has an additional hydroxyl group 12 .…”

Section: Introductionmentioning

confidence: 99%

Process optimization with acid functionalised activated carbon derived from corncob for production of 4-hydroxymethyl-2,2-dimethyl-1,3-dioxolane and 5-hydroxy-2,2-dimethyl-1,3-dioxane

Kaur

Sarma

Gera

et al. 2021

Sci Rep

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In this article, a two-step activated carbon preparation technique from corncob has been elucidated. The derived catalysts AAC-CC has been characterized using various techniques for the determination of their structural properties and compared with AC-CC, already reported with another article. The conjugated boat structure of AAC-CC resulted in a very high surface area (779.8 m2/g) and high pore volume (0.428 cc/g). This unveils the suitability of AAC-CC as better among the two catalytic pathways for solketal production. The activated carbons so prepared have been used for the valorization of glycerol to produce 2,2-Dimethyl-1,3-dioxolane-4-methanol (solketal), oxygenated additives to fuel. The face-centered composite design (FCCD) of RSM was applied for the optimization of the reaction parameters for the ketalisation reaction using AAC-CC as a catalyst. From the optimized results, the acidic catalyst AAC-CC resulted in a glycerol conversion, i.e. 80.3% under the actual laboratory experiment. Moreover, the catalyst could be reused for three consecutive batch reactions without (< 5%) much reduction of activity and no distinctive structural deformity.

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“…The chemical reaction for the production of two ketal species is shown in Figure 1 7 . Solketal is a ring-shaped di-ether that has an additional hydroxyl group 8 .…”

Section: Introductionmentioning

confidence: 99%

Process Optimization with Acid Functionalised Activated Carbon derived from Corncob for Production of 4-Hydroxymethyl-2,2-Dimethyl-1,3-Dioxolane and5-Hydroxy-2,2-Dimethyl-1,3-Dioxane

Kaur

Sarma

Jha

et al. 2021

Preprint

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This study focuses on the application of the corncob derived base (NaOH) activated and acid (H2SO4) functionalized carbons for the glycerol valorization to produce 2,2-Dimethyl-1,3-dioxolane-4-methanol (solketal), an oxygenated additive to fuel. The two derived catalysts viz., AAC-CC and AC-CC were subjected to various techniques for the determination of their structural properties and their comparison is made on the basis of characteristics and conversion into the final product. The conjugated boat structure of AAC-CC resulted very high surface area (779.8 m2/g) and higher pore volume (0.428cc/g) of AAC-CC that unveil its suitability as better among the two catalytic pathways during the solketal production. The acidic catalyst shows the highest catalytic activity as compared to basic due to the availability of the more active sites to the catalyst that will help in the reaction for higher conversion. The face cantered composite design (FCCD) of RSM was applied for the optimization of the reaction parameters for the ketalisation reaction. From the optimized results, the acidic catalyst AAC-CC gives higher glycerol conversion, i.e. 80.3% than the basic catalyst AC-CC i.e. 72.12% under the actual laboratory experiment. Moreover, the catalyst could be reused for three consecutive batch reactions without (< 5%) much reduction of activity and no distinctive structural deformity.

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Solketal Production from Glycerol Ketalization with Acetone: Catalyst Selection and Thermodynamic and Kinetic Reaction Study

Cited by 56 publications

References 61 publications

Rib shaped carbon catalyst derived from Zea mays L. cob for ketalization of glycerol

Rib shaped carbon catalyst derived from Zea mays L. cob for ketalization of glycerol

Process optimization with acid functionalised activated carbon derived from corncob for production of 4-hydroxymethyl-2,2-dimethyl-1,3-dioxolane and 5-hydroxy-2,2-dimethyl-1,3-dioxane

Process Optimization with Acid Functionalised Activated Carbon derived from Corncob for Production of 4-Hydroxymethyl-2,2-Dimethyl-1,3-Dioxolane and5-Hydroxy-2,2-Dimethyl-1,3-Dioxane

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