Enzymatic synthesis of neopentyl glycol-bases biolubricants using biodiesel from soybean and castor bean as raw materials
Synthetic oleochemical esters represents a growing alternative for mineral oil-based lubricants. In this sense, the present study shows the results of enzymatic synthesis of neopentyl glycol-bases biolubricants using biodiesel from soybean and castor bean as raw materials. The potential of two comme...
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ftrepec:oai:RePEc:eee:renene:v:148:y:2020:i:c:p:689-696 2024-04-14T08:03:16+00:00 Enzymatic synthesis of neopentyl glycol-bases biolubricants using biodiesel from soybean and castor bean as raw materials Aguieiras, Érika C.G. Cavalcanti, Elisa D.C. da Silva, Priscila R. Soares, Valéria F. Fernandez-Lafuente, Roberto Bessa Assunção, Charles Lima da Silva, José André C. Freire, Denise M.G. http://www.sciencedirect.com/science/article/pii/S0960148119316532 unknown http://www.sciencedirect.com/science/article/pii/S0960148119316532 article ftrepec 2024-03-19T10:32:05Z Synthetic oleochemical esters represents a growing alternative for mineral oil-based lubricants. In this sense, the present study shows the results of enzymatic synthesis of neopentyl glycol-bases biolubricants using biodiesel from soybean and castor bean as raw materials. The potential of two commercial immobilized lipases, lipase B from Candida antarctica (Novozyme 435) and lipase from Rhizomucor miehei (Lipozyme RM IM), to produce NPG esters in a solvent-free medium was evaluated. High conversions (>95%) were obtained for both raw materials, with both enzymes, but in a shorter reaction time for soybean biodiesel (24 h) than castor biodiesel (48 h). Both enzymes could be successfully reused for six reactions, Novozyme 435 maintained ≥70% of the initial conversion using the two raw materials and Lipozyme RM IM maintained ≥90% of the first reaction conversion using castor biodiesel. The soybean NPG esters showed good viscosity index, higher than 198, and the castor NPG esters showed good pour point, lower than −20 °C, and good oxidative stability, higher than 30 min. The physico-chemical properties of the biolubricants were dependent on the biodiesel source which directly influence the final application of the products. Biolubricant; Polyol ester; Neopentyl glycol; Biodiesel; Lipase; Article in Journal/Newspaper Antarc* Antarctica RePEc (Research Papers in Economics) |
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Open Polar |
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RePEc (Research Papers in Economics) |
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unknown |
description |
Synthetic oleochemical esters represents a growing alternative for mineral oil-based lubricants. In this sense, the present study shows the results of enzymatic synthesis of neopentyl glycol-bases biolubricants using biodiesel from soybean and castor bean as raw materials. The potential of two commercial immobilized lipases, lipase B from Candida antarctica (Novozyme 435) and lipase from Rhizomucor miehei (Lipozyme RM IM), to produce NPG esters in a solvent-free medium was evaluated. High conversions (>95%) were obtained for both raw materials, with both enzymes, but in a shorter reaction time for soybean biodiesel (24 h) than castor biodiesel (48 h). Both enzymes could be successfully reused for six reactions, Novozyme 435 maintained ≥70% of the initial conversion using the two raw materials and Lipozyme RM IM maintained ≥90% of the first reaction conversion using castor biodiesel. The soybean NPG esters showed good viscosity index, higher than 198, and the castor NPG esters showed good pour point, lower than −20 °C, and good oxidative stability, higher than 30 min. The physico-chemical properties of the biolubricants were dependent on the biodiesel source which directly influence the final application of the products. Biolubricant; Polyol ester; Neopentyl glycol; Biodiesel; Lipase; |
format |
Article in Journal/Newspaper |
author |
Aguieiras, Érika C.G. Cavalcanti, Elisa D.C. da Silva, Priscila R. Soares, Valéria F. Fernandez-Lafuente, Roberto Bessa Assunção, Charles Lima da Silva, José André C. Freire, Denise M.G. |
spellingShingle |
Aguieiras, Érika C.G. Cavalcanti, Elisa D.C. da Silva, Priscila R. Soares, Valéria F. Fernandez-Lafuente, Roberto Bessa Assunção, Charles Lima da Silva, José André C. Freire, Denise M.G. Enzymatic synthesis of neopentyl glycol-bases biolubricants using biodiesel from soybean and castor bean as raw materials |
author_facet |
Aguieiras, Érika C.G. Cavalcanti, Elisa D.C. da Silva, Priscila R. Soares, Valéria F. Fernandez-Lafuente, Roberto Bessa Assunção, Charles Lima da Silva, José André C. Freire, Denise M.G. |
author_sort |
Aguieiras, Érika C.G. |
title |
Enzymatic synthesis of neopentyl glycol-bases biolubricants using biodiesel from soybean and castor bean as raw materials |
title_short |
Enzymatic synthesis of neopentyl glycol-bases biolubricants using biodiesel from soybean and castor bean as raw materials |
title_full |
Enzymatic synthesis of neopentyl glycol-bases biolubricants using biodiesel from soybean and castor bean as raw materials |
title_fullStr |
Enzymatic synthesis of neopentyl glycol-bases biolubricants using biodiesel from soybean and castor bean as raw materials |
title_full_unstemmed |
Enzymatic synthesis of neopentyl glycol-bases biolubricants using biodiesel from soybean and castor bean as raw materials |
title_sort |
enzymatic synthesis of neopentyl glycol-bases biolubricants using biodiesel from soybean and castor bean as raw materials |
url |
http://www.sciencedirect.com/science/article/pii/S0960148119316532 |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_relation |
http://www.sciencedirect.com/science/article/pii/S0960148119316532 |
_version_ |
1796299527549878272 |