Matches in SemOpenAlex for { <https://semopenalex.org/work/W2129366384> ?p ?o ?g. }
Showing items 1 to 80 of
80
with 100 items per page.
- W2129366384 abstract "Recently, the worldwide market value of glycerin has proliferated owing to its major role as an active ingredient in food, cosmetic and personal care product. The rapid growth of biodiesel industries in the past decade has emerged as a reliable source of glycerin in significant amount. Glycerin is produced as a by-product from transesterification process in the biodiesel production, accounting up to 12 % of the total biodiesel production capacity. In general, the crude glycerin effluent oftentimes encompasses glycerin in a concentration range of 3 – 60 wt%. A series of separation and purification processes are normally practiced to purify the crude glycerin into 99 wt% purified glycerin. These include evaporation, vacuum distillation and product refinement processes such as ion exchange and bleaching. The capital and operating cost of these processes are high and usually involve the use of chemicals. In this regard, the potential of utilizing membrane technology in purifying crude glycerin solution is interminable. Membrane technology is a chemical-free process. At the same time, it possesses advantageous characteristics such as environmental friendly and operation simplicity. To date, there is limited study reported on the application of membrane technology in glycerin purification process. The main aim of this project was to investigate the feasibility of membrane technology in glycerin purification. In the present study, crude glycerin purification processes were carried out through ultrafiltration for removal of palm oil and fatty acids, further removal of palm oil using nanofiltration, water extraction using reverse osmosis and dehydration of glycerin using pervaporation. The first stage of this study demonstrated that ultrafiltration was capable of removing palm oil and oleic acid from glycerin solution with the highest rejection of 87.00 and 98.59 %, respectively. Next, data fitting of Hermia’s model showed that cake layer formation was the most consistent fouling mechanism during ultrafiltration process. Besides, multistage Hermia’s model offered a more comprehensive description of the overall fouling mechanism, which indicated the transition period of fouling from standard blocking to cake layer formation. Following ultrafiltration, the optimization of operating parameters using central composite rotatable design in a nanofiltration process revealed that 40 oC, 60 bar and 1 L/min contributed to the best performance of nanofiltration, with 97.55 % of glycerin permeation and 265.64 kg/m2.h of permeate flux recorded. Palm oil rejection of above 99 % was evident at the optimum condition in a steady state nanofiltration. In reverse osmosis, TFC-HR membrane yielded the highest glycerin rejection of 99.81 % along with the permeate flux of 11.86 kg/m2.h using crossflow configuration. Finally, HybSi pervaporation membrane was successfully dehydrating glycerin solution up to 99 wt% with the permeate flux and permeance water content of 13.63 kg/m2.h and 98 wt%, respectively." @default.
- W2129366384 created "2016-06-24" @default.
- W2129366384 creator A5014685019 @default.
- W2129366384 date "2013-01-01" @default.
- W2129366384 modified "2023-09-28" @default.
- W2129366384 title "Membrane technology for glycerin purification" @default.
- W2129366384 doi "https://doi.org/10.4225/03/58a3d9dda54b0" @default.
- W2129366384 hasPublicationYear "2013" @default.
- W2129366384 type Work @default.
- W2129366384 sameAs 2129366384 @default.
- W2129366384 citedByCount "0" @default.
- W2129366384 crossrefType "dissertation" @default.
- W2129366384 hasAuthorship W2129366384A5014685019 @default.
- W2129366384 hasConcept C127413603 @default.
- W2129366384 hasConcept C130797344 @default.
- W2129366384 hasConcept C146763847 @default.
- W2129366384 hasConcept C161790260 @default.
- W2129366384 hasConcept C178790620 @default.
- W2129366384 hasConcept C185592680 @default.
- W2129366384 hasConcept C206139338 @default.
- W2129366384 hasConcept C2777241282 @default.
- W2129366384 hasConcept C2779607525 @default.
- W2129366384 hasConcept C41625074 @default.
- W2129366384 hasConcept C43617362 @default.
- W2129366384 hasConcept C4725764 @default.
- W2129366384 hasConcept C48314217 @default.
- W2129366384 hasConcept C50817676 @default.
- W2129366384 hasConcept C528095902 @default.
- W2129366384 hasConcept C52896960 @default.
- W2129366384 hasConcept C548081761 @default.
- W2129366384 hasConcept C55493867 @default.
- W2129366384 hasConcept C66910140 @default.
- W2129366384 hasConcept C94005225 @default.
- W2129366384 hasConceptScore W2129366384C127413603 @default.
- W2129366384 hasConceptScore W2129366384C130797344 @default.
- W2129366384 hasConceptScore W2129366384C146763847 @default.
- W2129366384 hasConceptScore W2129366384C161790260 @default.
- W2129366384 hasConceptScore W2129366384C178790620 @default.
- W2129366384 hasConceptScore W2129366384C185592680 @default.
- W2129366384 hasConceptScore W2129366384C206139338 @default.
- W2129366384 hasConceptScore W2129366384C2777241282 @default.
- W2129366384 hasConceptScore W2129366384C2779607525 @default.
- W2129366384 hasConceptScore W2129366384C41625074 @default.
- W2129366384 hasConceptScore W2129366384C43617362 @default.
- W2129366384 hasConceptScore W2129366384C4725764 @default.
- W2129366384 hasConceptScore W2129366384C48314217 @default.
- W2129366384 hasConceptScore W2129366384C50817676 @default.
- W2129366384 hasConceptScore W2129366384C528095902 @default.
- W2129366384 hasConceptScore W2129366384C52896960 @default.
- W2129366384 hasConceptScore W2129366384C548081761 @default.
- W2129366384 hasConceptScore W2129366384C55493867 @default.
- W2129366384 hasConceptScore W2129366384C66910140 @default.
- W2129366384 hasConceptScore W2129366384C94005225 @default.
- W2129366384 hasLocation W21293663841 @default.
- W2129366384 hasOpenAccess W2129366384 @default.
- W2129366384 hasPrimaryLocation W21293663841 @default.
- W2129366384 hasRelatedWork W1969701629 @default.
- W2129366384 hasRelatedWork W1997594398 @default.
- W2129366384 hasRelatedWork W1998096511 @default.
- W2129366384 hasRelatedWork W2006428153 @default.
- W2129366384 hasRelatedWork W2011799508 @default.
- W2129366384 hasRelatedWork W2085103593 @default.
- W2129366384 hasRelatedWork W2200822393 @default.
- W2129366384 hasRelatedWork W2582904543 @default.
- W2129366384 hasRelatedWork W2771993775 @default.
- W2129366384 hasRelatedWork W2807983002 @default.
- W2129366384 hasRelatedWork W2810039828 @default.
- W2129366384 hasRelatedWork W2883173981 @default.
- W2129366384 hasRelatedWork W2895021884 @default.
- W2129366384 hasRelatedWork W3090329936 @default.
- W2129366384 hasRelatedWork W3093379394 @default.
- W2129366384 hasRelatedWork W3094968938 @default.
- W2129366384 hasRelatedWork W3198178697 @default.
- W2129366384 hasRelatedWork W2763281245 @default.
- W2129366384 hasRelatedWork W2850367331 @default.
- W2129366384 hasRelatedWork W3140129498 @default.
- W2129366384 isParatext "false" @default.
- W2129366384 isRetracted "false" @default.
- W2129366384 magId "2129366384" @default.
- W2129366384 workType "dissertation" @default.