However, although microwave irradiation technology might be effective at micro volume, it is known to have limitation at a larger scale. Ionic Liquid-Silicotungstic Acid Composites as Efficient and Recyclable Catalysts for the Selective Esterification of Glycerol with Lauric Acid to Monolaurin. Eduardo Jose Mendes de Paiva, Stefano Sterchele, Marcos Lúcio Corazza, Dmitry Yu Murzin, Fernando Wypych, Tapio Salmi. external Tel. doi:10.1002/ejlt.201400229, Herseczki Z, Varga T, Marton G (2009) Synthesis of glycerol carbonate from glycerol, a by-product of biodiesel production. Rodríguez, D. and Gaigneaux, E.M., (2012), Glycerol acetylation catalysed by ion exchange resins, Catal. �|Eg�6��:��嶞1��)��V���F���(�_ ��f,$�r�TiZ��Uۚ��Z=�O��7��1���m���=��N�E�2,��J�m�oW��8����**K���� \c�o�!�jxD����E�-��ƫ��wt��H!x)C��!H� �(q�}u��q[�ضn��⺚7��lfjS�^��pj�����u]kU?Jv2�/;!���١&�kF.+�S����b>Σz�;�����ހ{��:��lW�Z�Ȝ]����7��.I[�� I Non-catalytic supercritical dimethyl carbonate esterification of glycerol (pure and crude) was performed in a in a batch-type supercritical biomass conversion system as reported previously (Saka and Kusdiana 2001). HPLC plot for partial conversion of pure glycerol in supercritical dimethyl carbonate treatment at 300 °C/20 MPa from 2 min to 20 min reaction time. Text Plausible reaction scheme for conversion of glycerol to glycerol carbonate in non-catalytic This is due to the fact that no catalyst is used in non-catalytic supercritical methanol method (Saka and Kusdiana 2001). http://pubs.acs.org/page/copyright/permissions.html, https://doi.org/10.1016/j.cep.2020.108060, https://doi.org/10.3390/molecules25225221, https://doi.org/10.1016/j.cej.2020.125319, https://doi.org/10.1016/j.fuel.2020.118121, https://doi.org/10.1016/j.cattod.2020.07.056. 10.1186/s40064-016-2643-1 Influence of Heterogeneous Catalysts and Reaction Parameters on the Acetylation of Glycerol to Acetin: A Review. [9] NISO Abbott AP, Corr S, Durling NE, Hope EG (2005) Pressure effects on Friedel–Crafts alkylation reactions in supercritical difluoromethane. In lieu of using #other please reach out to the PRISM group at prism-wg@yahoogroups.com to request addition of your term to the Platform Controlled Vocabulary. Malays J Biochem Mol Biol 17:5–9, Nanda MR, Yuan Z, Qin W, Poirier MA, Chunbao X (2014) Purification of crude glycerol using acidification: effects of acid types and product characterization. For the calibration curve of the authentic standard products, glycerol and glycerol carbonate were used. Mônica A. da Silva, Anderson S. S. dos Santos, Antonio J. S. Neto, Cristian J. Giertyas, Janaína H. Bortoluzzi, Mario R. Meneghetti, Simoni M. Plentz Meneghetti. CrossmarkDomainExclusive Hao Qin, Ruizhuan Wang, Qian Zeng, Hongye Cheng, Lifang Chen, Zhiwen Qi. Production of monoolein from oleic acid and glycerol in supercritical carbon dioxide media: A kinetic approach. <>/Rect[421.021 512.693 440.7 500.527]/H/N/AP<>>> EVoR = Enhanced Version of Record In recent years, mainly due to biodiesel production, the available quantity of glycerol in the market is increasing significantly, and many processes that use glycerol are being studied and developed. the Altmetric Attention Score and how the score is calculated. Hereinafter in this study, glycerol from alkali-catalyzed method will be referred to as crude glycerol and glycerol from non-catalytic supercritical methanol will be referred to as pure glycerol. For permission to reproduce, republish and 2016; Waghmare et al. Author information: contains the name of each author and his/her ORCiD (ORCiD: Open Researcher and Contributor ID). E-mail:  [email protected]. Bioresour Technol 101:2735–2740. Structured Mono- and Diacylglycerols with a High Content of Medium Chain Fatty Acids. Issue number Conformance level of PDF/X standard Text Conversion of glycerol from biodiesel production to glycerol carbonate was studied by esterification with dimethyl carbonate in a non-catalytic supercritical condition. Cite this article. It was found that in a non-catalytic supercritical condition, glycerol at higher purity gave higher yield of glycerol carbonate at 98 wt% after reaction at 300 °C/20–40 MPa/15 min. Caesium Salt of Tungstophosphoric Acid Supported on Mesoporous SBA-15 Catalyst for Selective Esterification of Lauric Acid with Glycerol to Monolaurin. However, the glycerol produced from non-catalytic supercritical methanol method did not vary, showing similar properties with the commercial glycerol (99 % purity) with no traces of water, salt and soap detectable. Esterification Kinetics of Glycerol with Fatty Acids in the Presence of Zinc Carboxylates:  Preparation of Modified Acylglycerol Emulsifiers, Department of the Technology of Fats and Detergents, Chemical Faculty, Gdańsk University of Technology, Narutowicza 11/12, 80-952 Gdańsk, Poland. The purpose of this research is to get the best conditions of the esterification process. If you have a user account, you will need to reset your password the next time you login. On the other hand, when crude glycerol with impurities was used, glycerol carbonate could decompose to glycidol. European Journal of Lipid Science and Technology. Biotechnol Biofuels 5:1–10. http://www.aiim.org/pdfa/ns/id/ endobj Selective synthesis of monolaurin catalyzed by layered zinc laurate. HH Glycerol and methanol contents were analyzed by high performance liquid chromatography (HPLC) LC10-VP System (Column: Ultrahydrogel 120, oven temperature: 40 °C, flow-rate: 1 mL/min, mobile phase: water, detector: RID 10A) (Algoufi and Hameed 2014). The pure glycerol from supercritical methanol method and crude glycerol from alkali-catalyzed method were both treated in non-catalytic supercritical dimethyl carbonate (300 °C/20 MPa/15 min). 21 0 obj Glycerol; Biodiesel; Esterification; Glycerol carbonate; Dimethyl carbonate Without new applications, excess of such crude glycerol could exert impact into refined glycerol market (Yang et al. Mufrodi, Z., Rochmadi, Sutijan, dan Budiman, A., (2013), Continuous Process of Reactive Distillation to Produce Bio-additive Triacetin From Glycerol. Text 10, pp.481-484. http://orcid.org/0000-0003-3836-0848 In: Zero-carbon energy Kyoto 2011, pp 127–133. DOI Production of polyols and waterborne polyurethane dispersions from biodiesel-derived crude glycerol. doi:10.1186/1754-6834-5-13. Rahmat, N., Abdullah, A.Z., dan Mohamed, A.R., (2010), Recent progress on innovative and potential technologies for glycerol transformation into fuel additives: A critical review. The formation of microemulsions in all studied esterification processes was observed. Microstructural behavior of water-in-oil emulsions stabilized by fatty acid esters of propylene glycol and zinc fatty acid salts. internal IOP Conference Series: Earth and Environmental Science. When analyzed and compared to several authentic compounds, the resulted compound was found to be glycerol carbonate (4-hydroxymethyl-1,3-dioxolan-2-one), a value-added derivative of glycerol, as depicted at around 4 min retention time in the chromatogram of Fig.

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