Recent advances in bio-glycerol valorization to glycerol carbonate by heterogenous base-catalyzed transesterification

Sahani, Shalini; Jaiswal, Siddhi; Mishra, Sadhna; Sharma, Yogesh Chandra; Han, Sung Soo

doi:10.1016/j.mcat.2023.113508

Cited by 3 publications

(7 citation statements)

References 96 publications

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“…Figure c illustrates the transesterification reaction between Gly and DMC by varying in the range from 70 to 90 °C in heterogeneous catalyst systems. , Nevertheless, enzymatic catalysts are temperature sensitive, and hence, the studies have examined up to 60 °C reaction temperature. ,, In most of the studies, it was observed that the reaction temperature showed an escalated trend for Glc yields up to a certain temperature. After that, the Glc yield was insignificant . Generally, at higher temperatures, decarbonylation of Glc into glycidol occurs with efficient and stable catalysts.…”

Section: Various Synthesis Methods For Glycerol Carbonatementioning

confidence: 99%

“…After that, the Glc yield was insignificant. 22 Generally, at higher temperatures, decarbonylation of Glc into glycidol occurs with efficient and stable catalysts. Therefore, an optimum temperature selection is crucial for efficient Glc synthesis, balancing viscosity, reactant stability, and catalyst efficiency while minimizing byproducts.…”

Section: Factors Affecting Glc Synthesis Using Heterogeneousmentioning

confidence: 99%

“…breaking and bond-building processes to generate products, particularly in heterogeneous catalysis. 22 When the catalyst dose increases, the number of basic sites or active sites proportionally increases, enabling the transesterification reaction (Figure 11a). However, beyond the optimum dose, the excess available active sites may participate in Glc decarboxylation, forming glycidol (Scheme 3).…”

Section: Factors Affecting Glc Synthesis Using Heterogeneousmentioning

confidence: 99%

“…The Gly conversion and Glc yield increase with reaction time are shown in Figure 11d. 22,115,139 Ochoa-Goḿez et al 146 investigated acid-catalyzed transesterification reactions, and only 50% yield of Glc was observed in a 24 h reaction. The reaction time needed for the enzymatic transformation of Gly to Glc is in the range of 24 to 48 h. 33,35 However, homogeneous basic catalysts (Na 2 O) showed a higher yield of 92% with a reaction time of 30 min.…”

Section: Effect Of Reaction Timementioning

confidence: 99%

“…So far, approximately 16 review articles have been published in open literature on Glc synthesis and application. ,− Many of the articles summarize the single Glc synthesis reaction pathway, catalyst advancement, and reaction conditions that influence the reaction performance. Very few articles presented all potential pathways and reaction mechanisms and also failed to address the industrially feasible processes and favorable reaction conditions.…”

Section: Introductionmentioning

confidence: 99%

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Glycerol Carbonate Synthesis: Critical Analysis of Prospects and Challenges with Special Emphasis on Influencing Parameters for Catalytic Transesterification

Gosu,

Arora,

Subbaramaiah

et al. 2024

ACS Sustainable Resour. Manage.

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Due to the global depletion of natural resources, developing economically and environmentally sustainable energy sources is critical. Biodiesel can substitute for diesel without significant modification of existing engines. Biodiesel production has accelerated in recent years, because of aggressive government policies and incentives to meet energy demand and environmental concerns. A surplus amount of glycerol (Gly) is generated during biodiesel production as a byproduct. Thus, developing viable routes for the valorization of Glyl is crucial for the sustainability of the biodiesel industry. Valorization of Gly-to-glycerol carbonate (Glc) is considered an attractive route due to its wide industrial applicability. This paper discusses the potential synthesis routes including glycerolysis of urea, direct carbonation of Gly with CO 2 , enzymatic transesterification of Gly, and catalytic transesterification of Gly with alkyl carbonate to produce Glc. This paper addresses the performance of various homogeneous and heterogeneous catalysts used in Glc synthesis. Among various synthesis routes, catalytic transesterification of Gly with dimethyl carbonate (DMC) is considered as green and environmentally friendly, operates under mild reaction conditions, and is an industrially feasible process with high selectivity and yield. In order to achieve high yield and selectivity of Glc, key influencing process parameters such as catalyst dose, molar ratio of DMC/Gly, reaction temperature, reaction time, and basic sites of the catalyst are discussed. Repurposing of surplus glycerol for Glc production enhances biodiesel economics. Finally, this paper suggests future prospects for various pathways for the sustainable production of Glc.

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Section: Various Synthesis Methods For Glycerol Carbonatementioning

confidence: 99%

Section: Factors Affecting Glc Synthesis Using Heterogeneousmentioning

confidence: 99%

Section: Factors Affecting Glc Synthesis Using Heterogeneousmentioning

confidence: 99%

Section: Effect Of Reaction Timementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Glycerol Carbonate Synthesis: Critical Analysis of Prospects and Challenges with Special Emphasis on Influencing Parameters for Catalytic Transesterification

Gosu,

Arora,

Subbaramaiah

et al. 2024

ACS Sustainable Resour. Manage.

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Development of a functional catalytic membrane by alkalization of PVA and green synthesis of fuel additive glycerin carbonate with high oxygen content

Hasirci,

Hilmioglu

2024

Energy Sources, Part A: Recovery, Utilization, and Environmenta

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Efficient Catalytic Synthesis of Glycerol Carbonate Using Optimized Na and K Titanate Nanotubes Catalysts

Malyaadri,

Jagadeeswaraiah

2024

NHC

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The synthesis of glycerol carbonate from glycerol has garnered significant research attention because of its wide application in the lithium-ion battery and pharmaceutical industries. This study summarizes the catalytic transformation of glycerol to glycerol carbonate using Na and K titanate nanotubes as catalysts. We report the synthesis of Na and K titanate nanotubes catalyst by a simple co-precipitation route and investigate their catalytic activity in the transesterification of glycerol. The physicochemical properties of the Na and K titanate nanotubes catalyst were successfully studied by CO2-TPD and XRD. The designed catalyst possesses high catalytic efficiency and stability in the transesterification reaction of glycerol. Based on its surface area and basicity, several experiments were performed, and it was observed that under optimized conditions (i.e., 5 wt.% catalyst loading, 5:1 molar ratio of DMC to glycerol, 90 °C, and 90 min), the highest conversion of glycerol was achieved, 92.6% glycerol carbonate. The high thermal stability and recyclability make it an efficient heterogeneous catalyst for the synthesis of glycerol carbonate.

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Recent advances in bio-glycerol valorization to glycerol carbonate by heterogenous base-catalyzed transesterification

Cited by 3 publications

References 96 publications

Glycerol Carbonate Synthesis: Critical Analysis of Prospects and Challenges with Special Emphasis on Influencing Parameters for Catalytic Transesterification

Glycerol Carbonate Synthesis: Critical Analysis of Prospects and Challenges with Special Emphasis on Influencing Parameters for Catalytic Transesterification

Development of a functional catalytic membrane by alkalization of PVA and green synthesis of fuel additive glycerin carbonate with high oxygen content

Efficient Catalytic Synthesis of Glycerol Carbonate Using Optimized Na and K Titanate Nanotubes Catalysts

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