- Chemical and Biomolecular Engineering - Research Publications
Chemical and Biomolecular Engineering - Research Publications
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ItemNo Preview AvailableMulticomponent solvent extraction modelling of lithium, cobalt, nickel, and manganese from simulated black mass leachateLu, J ; Li, W ; Stevens, GW ; Mumford, KA (Elsevier BV, 2024-05-05)
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ItemNo Preview AvailableGreen method for recovery of cannabinoids from Cannabis sativa flowers: pH-controlled aqueous leachingLu, HT ; Li, W ; Deseo, MA ; Stevens, GW ; Bacic, A ; Doblin, MS ; Mumford, KA (ELSEVIER, 2023-12-01)
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ItemNo Preview AvailableInvestigation of the Extraction of Natural Alkaloids in Karr Reciprocating Hate Columns: Mass Transfer StudyWu, Y ; Vovers, J ; Hiep, TL ; Li, W ; Stevens, GW ; Mumford, KA (TAYLOR & FRANCIS INC, 2023-01-02)
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ItemNo Preview AvailableImplementation of Biodegradable Liquid Marbles as a Novel Controlled Release FertilizerMcQuillan, RV ; Stevens, GW ; Mumford, KA (AMER CHEMICAL SOC, 2023-01-09)
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ItemA novel efficient liquid-liquid solvent extraction process for cannabinoid mimic recoveryLi, W ; Lu, HT ; Doblin, MS ; Bacic, A ; Stevens, GW ; Mumford, KA (ELSEVIER, 2023-01-06)Cannabinoids attract worldwide attention due to their well-known medicinal and psychoactive properties. Their efficient recovery from plant material is a significant challenge due to the presence of a complex mixture of secondary metabolites. In this work, 4-tert-amylphenol (4-TAP) was selected as a cannabinoid mimic from five mimic candidates based on an evaluation matrix that included several criteria – toxicity, market price, physiochemical properties, and extraction performance. The COnductor-like Screening MOdel (COSMO) was used to predict the physiochemical properties and extraction performance of the mimic candidates and cannabinoids and assist in the mimic selection and mimic liquid–liquid extraction (LLE) process development. Three aqueous systems, three volatile organic compound (VOC) solvents, three biodegradable green solvents and one extractant were used to investigate the dissolution, extraction, and stripping of 4-TAP. A three stage LLE recovery process was developed for the selected cannabinoid mimic including leaching, extraction, and stripping. The COSMO model predictions show comparable trends to the experimental data and is shown to be useful for integrating fundamental modelling work into cannabinoid extraction process design.
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ItemNo Preview AvailableA solvent loss study for the application of solvent extraction processes in the pharmaceutical industryLi, W ; Lu, HT ; Doblin, MS ; Bacic, A ; Stevens, GW ; Mumford, KA (PERGAMON-ELSEVIER SCIENCE LTD, 2022-03-15)
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ItemNo Preview AvailableInvestigation of the extraction of natural alkaloids in Karr reciprocating plate columns: Fluid dynamic studyWu, Y ; Vovers, J ; Lu, HT ; Li, W ; Stevens, GW ; Mumford, KA (PERGAMON-ELSEVIER SCIENCE LTD, 2022-12-31)
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ItemNo Preview AvailableInvestigation of green solvents for the extraction of phenol and natural alkaloids: Solvent and extractant selectionWu, Y ; Li, W ; Vovers, J ; Lu, HT ; Stevens, GW ; Mumford, KA (ELSEVIER SCIENCE SA, 2022-08-15)
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ItemThe use of carbonic anhydrase to accelerate carbon dioxide capture processesYong, JKJ ; Stevens, GW ; Caruso, F ; Kentish, SE (WILEY, 2015-01)The chemical absorption of CO2 into a monoethanolamine solvent is currently the most widely accepted commercial approach to carbon dioxide capture. However, the subsequent desorption of CO2 from the solvents is extremely energy intensive. Alternative solvents are more energy efficient, but their slow reaction kinetics in the CO2 absorption step limits application. The use of a carbonic anhydrase (CA) enzyme as a reaction promoter can potentially overcome this obstacle. Native, engineered and artificial CA enzymes have been investigated for this application. Immobilization of the enzyme within the gas absorber or in a membrane format can increase enzyme stability and avoid thermal denaturation in the stripper. However, immobilization is only effective if the mass transfer of carbon dioxide through the liquid phase to reach the immobilization substrate does not become rate controlling. Further research should also consider the process economics of large-scale enzyme production and the long-term performance of the enzyme under real flue gas conditions.
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ItemNo Preview AvailableEfficient fixation of CO2 into propylene carbonate with [BMIM]Br in a continuous-flow microreaction systemWu, Y ; Ding, Y ; Xu, J ; Wang, Y ; Mumford, K ; Stevens, GW ; Fei, W (KEAI PUBLISHING LTD, 2021-04)