A Review on Opportunities and Limitations of Membrane Bioreactor Configuration in Biofuel Production

Garg, Shruti; Behera, Shuvashish; Ruíz, Héctor A.; Kumar, Sachin

doi:10.1007/s12010-022-03955-z

Cited by 15 publications

(3 citation statements)

References 244 publications

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“…Pore size: The selection of a pore size of about 0.043 µm is vital for holding oil molecules within the membrane while enabling smaller molecules such as biodiesel to pass through [95]. This size selection improves membrane selectivity, resulting in improved purity in the final biodiesel product [96].…”

Section: Membrane Performance and Contribution To System Efficiencymentioning

confidence: 99%

Cleaner Biofuel Production via Process Parametric Optimization of Nonedible Feedstock in a Membrane Reactor Using a Titania-Based Heterogeneous Nanocatalyst: An Aid to Sustainable Energy Development

Ameen,

Zafar,

Ahmad

et al. 2023

Membranes

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Membrane technology has been embraced as a feasible and suitable substitute for conventional time- and energy-intensive biodiesel synthesis processes. It is ecofriendly, easier to run and regulate, and requires less energy than conventional approaches, with excellent stability. Therefore, the present study involved the synthesis and application of a highly reactive and recyclable Titania-based heterogeneous nanocatalyst (TiO2) for biodiesel production from nonedible Azadhiracta indica seed oil via a membrane reactor, since Azadhiracta indica is easily and widely accessible and has a rich oil content (39% w/w). The high free fatty acids content (6.52 mg/g KOH) of the nonedible oil was decreased to less than 1% via two-step esterification. Following the esterification, transesterification was performed using a heterogeneous TiO2 nanocatalyst under optimum conditions, such as a 9:1 methanol–oil molar ratio, 90 °C reaction temperature, 2 wt.% catalyst loading, and an agitation rate of 600 rpm, and the biodiesel yield was optimized through response surface methodology (RSM). Azadhiracta indica seed oil contains 68.98% unsaturated (61.01% oleic acid, 8.97% linoleic acid) and 31.02% saturated fatty acids (15.91% palmitic acid, 15.11% stearic acid). These fatty acids transformed into respective methyl esters, with a total yield up to 95% achieved. The biodiesel was analyzed via advanced characterization techniques like gas chromatography–mass spectrometry (GC-MS), Fourier transform infrared spectroscopy (FT-IR), and nuclear magnetic resonance (NMR), whereas the catalyst was characterized via X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray (EDX), and Fourier transform infrared spectroscopy (FT-IR). Due to its physicochemical properties, Azadirachta indica seed oil is a highly recommended feedstock for biodiesel production. Moreover, it is concluded that the Titania-based heterogeneous nanocatalyst (TiO2) is effective for high-quality liquid fuel synthesis from nonedible Azadirachta indica seed oil in a membrane reactor, which could be an optional green route to cleaner production of bioenergy, eventually leading to sustenance, robustness, and resilience that will aid in developing a holistic framework for integrated waste management.

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Section: Membrane Performance and Contribution To System Efficiencymentioning

confidence: 99%

Cleaner Biofuel Production via Process Parametric Optimization of Nonedible Feedstock in a Membrane Reactor Using a Titania-Based Heterogeneous Nanocatalyst: An Aid to Sustainable Energy Development

Ameen,

Zafar,

Ahmad

et al. 2023

Membranes

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“…Among a big variety of EMR configurations [6], EMR system with immobilized enzyme (also known as interfacial EMR) in addition can enhance operational stability of the biocatalyst and thus prolong its lifetime [7,8]. The recent reports on employing such EMR systems for water purification, fabrication of biomedical sensors, clarification of food products, and carbon capture highlight their potential for widespread applications, yet the industrial use of EMRs to this day remains rather limited [6,[9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Opting for Polyamines with Specific Structural Traits as a Strategy to Boost Performance of Enzymatic Membrane Reactors

Pinelo,

Malankowska,

et al. 2024

Preprint

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“…One possible solution to this problem is to place the membrane inside the bioreactor, known as a submerged membrane bioreactor (SMBR). Moreover, SMBR can bring many other advantages, such as decrease of energy costs [16,17], homogeneity of the liquid phase in the reactor, simplification of the whole bioprocess [8], increased volumetric productivity [18] and volume reduction. Nevertheless, the problem arising is a potentially higher membrane fouling, which can drastically decrease the separation performance of the SMBRs.…”

Section: Introductionmentioning

confidence: 99%

Effect of Backwash as a Strategy for Biofouling Control in A Submerged Ceramic Membrane Bioreactor for High-Density Cultivations: Process Optimization and Fouling Mechanism at Pilot Scale

Pinelo,

Jankowska,

Domingo-Félez

et al. 2023

Preprint

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A Review on Opportunities and Limitations of Membrane Bioreactor Configuration in Biofuel Production

Cited by 15 publications

References 244 publications

Cleaner Biofuel Production via Process Parametric Optimization of Nonedible Feedstock in a Membrane Reactor Using a Titania-Based Heterogeneous Nanocatalyst: An Aid to Sustainable Energy Development

Cleaner Biofuel Production via Process Parametric Optimization of Nonedible Feedstock in a Membrane Reactor Using a Titania-Based Heterogeneous Nanocatalyst: An Aid to Sustainable Energy Development

Opting for Polyamines with Specific Structural Traits as a Strategy to Boost Performance of Enzymatic Membrane Reactors

Effect of Backwash as a Strategy for Biofouling Control in A Submerged Ceramic Membrane Bioreactor for High-Density Cultivations: Process Optimization and Fouling Mechanism at Pilot Scale

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