Matches in SemOpenAlex for { <https://semopenalex.org/work/W3212156970> ?p ?o ?g. }
Showing items 1 to 63 of
63
with 100 items per page.
- W3212156970 abstract "This work reports the characterization of a vegetable oil extracted from pequi seeds, an agroindustrial residue, and its biodiesel production using ethanol and heterogeneous catalysis. The pequi seeds showed 40.73 wt.% of extractive content, which represents a large amount of the biomass composition. The crude oil extracted from the pequi seeds with ethanol as solvent presented a high content of free fatty acids (FFAs), mainly oleic (54.14%) and palmitic (36.71%) acids, resulting in an acidity value of 13.8 ± 0.1 mg KOH g-1. The esterification/transesterification process was performed using two ion exchange resins as heterogeneous catalysts, a commercial protonic form (assigned as PR) and a zirconium-exchanged (assigned as PRZr). Conversions of 87.1 and 91.4% were achieved for PR and PRZr as catalysts, respectively, at optimal conditions (1:6 oil-to-alcohol molar ratio, 25 wt.% of catalyst, 100 ºC and 1 h). These results indicated that heterogeneous acid catalysts can be successfully applied in biodiesel production from fatty acidrich oils, such as the one extracted from pequi seeds. Also, a simultaneous process involving both oil extraction and biodiesel production was tested using PRZr as catalyst (25 wt.% of catalyst and 100 ºC), but due to the greater amount of ethanol necessary for the oil extraction (1:16 oil to alcohol mass ratio) the conversion reached only 51.5% after 5 h. For that reason, this work proposes a two stage system for biodiesel production that integrates oil extraction (stage one) and the esterification/transesterification reaction (stage two) to achieve a greener process, waste-to-bioenergy." @default.
- W3212156970 created "2021-11-22" @default.
- W3212156970 creator A5004471755 @default.
- W3212156970 creator A5040895229 @default.
- W3212156970 creator A5052034691 @default.
- W3212156970 creator A5084401492 @default.
- W3212156970 date "2022-01-01" @default.
- W3212156970 modified "2023-10-14" @default.
- W3212156970 title "Extraction and Characterization of Pequi Seed Oil for Biodiesel Production: A Green Management of Waste to Biofuel Using Ethanol and Heterogeneous Catalysis" @default.
- W3212156970 doi "https://doi.org/10.21577/0103-5053.20210151" @default.
- W3212156970 hasPublicationYear "2022" @default.
- W3212156970 type Work @default.
- W3212156970 sameAs 3212156970 @default.
- W3212156970 citedByCount "1" @default.
- W3212156970 countsByYear W32121569702022 @default.
- W3212156970 crossrefType "journal-article" @default.
- W3212156970 hasAuthorship W3212156970A5004471755 @default.
- W3212156970 hasAuthorship W3212156970A5040895229 @default.
- W3212156970 hasAuthorship W3212156970A5052034691 @default.
- W3212156970 hasAuthorship W3212156970A5084401492 @default.
- W3212156970 hasBestOaLocation W32121569701 @default.
- W3212156970 hasConcept C127413603 @default.
- W3212156970 hasConcept C13965031 @default.
- W3212156970 hasConcept C161790260 @default.
- W3212156970 hasConcept C178790620 @default.
- W3212156970 hasConcept C185592680 @default.
- W3212156970 hasConcept C2777241282 @default.
- W3212156970 hasConcept C2781066024 @default.
- W3212156970 hasConcept C4725764 @default.
- W3212156970 hasConcept C52896960 @default.
- W3212156970 hasConcept C53991642 @default.
- W3212156970 hasConcept C548081761 @default.
- W3212156970 hasConcept C66910140 @default.
- W3212156970 hasConceptScore W3212156970C127413603 @default.
- W3212156970 hasConceptScore W3212156970C13965031 @default.
- W3212156970 hasConceptScore W3212156970C161790260 @default.
- W3212156970 hasConceptScore W3212156970C178790620 @default.
- W3212156970 hasConceptScore W3212156970C185592680 @default.
- W3212156970 hasConceptScore W3212156970C2777241282 @default.
- W3212156970 hasConceptScore W3212156970C2781066024 @default.
- W3212156970 hasConceptScore W3212156970C4725764 @default.
- W3212156970 hasConceptScore W3212156970C52896960 @default.
- W3212156970 hasConceptScore W3212156970C53991642 @default.
- W3212156970 hasConceptScore W3212156970C548081761 @default.
- W3212156970 hasConceptScore W3212156970C66910140 @default.
- W3212156970 hasLocation W32121569701 @default.
- W3212156970 hasLocation W32121569702 @default.
- W3212156970 hasOpenAccess W3212156970 @default.
- W3212156970 hasPrimaryLocation W32121569701 @default.
- W3212156970 hasRelatedWork W1973470671 @default.
- W3212156970 hasRelatedWork W1994094280 @default.
- W3212156970 hasRelatedWork W2002003735 @default.
- W3212156970 hasRelatedWork W2015021762 @default.
- W3212156970 hasRelatedWork W2092340969 @default.
- W3212156970 hasRelatedWork W2131844399 @default.
- W3212156970 hasRelatedWork W2244958085 @default.
- W3212156970 hasRelatedWork W2358059609 @default.
- W3212156970 hasRelatedWork W4367856433 @default.
- W3212156970 hasRelatedWork W4381571094 @default.
- W3212156970 isParatext "false" @default.
- W3212156970 isRetracted "false" @default.
- W3212156970 magId "3212156970" @default.
- W3212156970 workType "article" @default.