Effect of channel dimension on biodiesel yield in millireactors produced by stereolithography

Lukić, Marija; Vrsaljko, Domagoj

doi:10.1080/15435075.2020.1831513

Cited by 9 publications

(3 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In contrast, T-shape, which fosters laminar flow and poor mixing, achieved 66%, 73%, and 88% for 30, 50, and 70°C, respectively. These results are in agreement with Lukić and Vrsaljko, (2021), study.…”

Section: Operational Conditionssupporting

confidence: 94%

See 1 more Smart Citation

Are Microreactors the Future of Biodiesel Synthesis?

Welter¹,

Silva²,

Souza³

et al. 2022

Preprint

View full text Add to dashboard Cite

Microfluidic devices or microdevices refer to systems with a characteristic length in the micrometer range. Systems in this size allow handling small quantities of reagents and samples, with reduced residence time, better control of chemical species concentration, high heat and mass transfers, and high surface/volume ratio. These characteristics led to the application of these microdevices in several areas, such as biological systems, energy, liquid-liquid extraction, food, agricultural sectors, pharmaceuticals, flow chemistry, microreactors, and biodiesel synthesis. Microreactors are devices that have interconnected microchannels, in which small amounts of reagents are manipulated and react for a certain period of time. The traditional characteristics of microreactors are less quantities of reagents and samples, high surface area in relation to volume (10000 m2 m-3), reduction of resistance to heat and mass transfer, reduced reaction times, and narrower residence time distributions. In recent years, several studies have been carried out on biodiesel production in microreactors that explore the influence of operating conditions, mixing and reaction yield, numbering, and especially the microdevices design. Despite all the advantages of microreactors, the literature shows that there are only a few applications on an industrial scale. Two main reasons that hinder the adoption of this technology are the scale-up to a large enough volume to deliver the necessary production capacity and the costs related to industrial manufacturing microreactors. It is often stated that large-scale production of microreactors can be easily achieved by numbering-up. However, researches show that an incredibly high number of microdevices would be needed, which results in a technical unfeasibility and a strong impact on the construction costs of the industrial system. The present review aims to show whether microreactors can replace conventional biodiesel production processes and how this replacement technology could be carried out. The current chapter was divided into the following sections: Introduction, Synthesis and Purification of Biodiesel in Microreactors, Fundamentals of CFD, and Fundamentals of Scale-up. Finally, conclusions and future perspectives are exposed.

show abstract

Section: Operational Conditionssupporting

confidence: 94%

“…The major aspect of a higher yield is to obtain a better reactants' contact and mass transfer. Lukić and Vrsaljko, (2021), observed that the two reactants form segmented interspersed flow and the reaction occurs between both reactants' borders. Thus, smaller reactants' segments result in a larger conversion.…”

Section: Microdevices Designmentioning

confidence: 99%

Are Microreactors the Future of Biodiesel Synthesis?

Welter¹,

Silva²,

Souza³

et al. 2022

Preprint

View full text Add to dashboard Cite

show abstract

“…The design and structure of the microdevice is fundamental to improving the system efficiency by promoting turbulent mixing spots and increasing the contact area between the reagents. The reactants are pumped into the microchannels in small, interspersed segments, and mass transfer, which facilitates the reaction, occurs across the borders of the reactants [281]. To achieve better mass transfer, the structures of microdevices can be optimized by reducing the channel diameter, using a complex channel geometry, or implementing micromixers.…”

Section: Microscale Plants For Biodiesel Productionmentioning

confidence: 99%

Biodiesel Production by Heterogeneous Catalysis and Eco‐friendly Routes

et al. 2023

View full text Add to dashboard Cite

Biodiesel is produced on a large scale as an ecofriendly substitute and additive to fossil fuels. Catalytic homogeneous processes using strong acids, alkalis, and natural oils have been realized in industry. However, these traditional methods have several disadvantages, such as the generation of large volumes of waste, high water and reagent needs, use of hazardous reagents, high operation costs, and utilization of valuable feedstocks and catalysis, respec-tively. Different solutions have subsequently been investigated, such as cheap alternative feedstocks, co-solvents and catalysts, sustainable operational conditions, advanced reactor designs and scales, and advantageous pre-and post-reaction treatments. This review explores and analyzes the main aspects of current biodiesel technologies and opportunities. It also describes some advanced improvement strategies.

show abstract

State of the Art Design and Fabrication of a Reactor in Biofuel Production

2022

Sustainability in Biofuel Production Technology

View full text Add to dashboard Cite

Effect of channel dimension on biodiesel yield in millireactors produced by stereolithography

Cited by 9 publications

References 32 publications

Are Microreactors the Future of Biodiesel Synthesis?

Are Microreactors the Future of Biodiesel Synthesis?

Biodiesel Production by Heterogeneous Catalysis and Eco‐friendly Routes

State of the Art Design and Fabrication of a Reactor in Biofuel Production

Contact Info

Product

Resources

About