Microwave and ultrasonic processing: Now a realistic option for industry

Leonelli, Cristina; Mason, Timothy J.

doi:10.1016/j.cep.2010.05.006

Cited by 431 publications

(242 citation statements)

References 49 publications

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“…Interaction between the material and the microwave energy generates heat. The ability to convert microwave energy into thermal energy depends on the magnitude of the dielectric loss of the material [6,7] . Therefore, in mixtures of materials, it is possible a selective heating of specific regions, a property that has been exploited in the processing of thermosets with mineral fillers [3][4][5] .…”

Section: Introductionmentioning

confidence: 99%

Blends of ground tire rubber devulcanized by microwaves/HDPE - Part A: influence of devulcanization process

et al. 2015

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SbstractThe main objective of this work is the study of the influence of microwaves devulcanization of the elastomeric phase on dynamically revulcanized blends based on Ground Tire Rubber (GTR)/High Density Polyethylene (HDPE). The devulcanization of the GTR was performed in a system comprised of a conventional microwave oven adapted with a motorized stirring at a constant microwaves power and at various exposure times. The influence of the devulcanization process on the final properties of the blends was evaluated in terms of mechanical, viscoelastic, thermal and rheological properties. The morphology was also studied.

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Section: Introductionmentioning

confidence: 99%

Blends of ground tire rubber devulcanized by microwaves/HDPE - Part A: influence of devulcanization process

et al. 2015

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“…The production of BD using MW leads to some advantages as short reaction times, low oil/methanol ratio and general reduction of energy consumption (Vyas et al, 2010). MW assisted processes have been studied both in homogeneous and heterogeneous alkali-and acid-catalyzed BD syntheses (Leonelli and Mason, 2010 MHz, a small gas cavity present in the liquid may grow rapidly generating oscillating bubbles; when these bubbles collapse they produce local hot spots of high temperature and pressure able to promote chemical and mechanical effects (Leonelli and Mason, 2010;Colucci et al, 2005). In the biodiesel reacting media, the collapse of these bubbles may be moreover able to disrupt the phase boundary causing emulsification, so impinging one liquid to another as a consequence of the formation of ultrasonic jets (Stavarache et al, 2005).…”

Section: Wwwintechopencommentioning

confidence: 99%

Soybean Oil De-Acidification as a First Step Towards Biodiesel Production

Pirola¹,

Boffito²,

Carvoli³

et al. 2011

Recent Trends for Enhancing the Diversity and Quality of Soybean Products

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“…[11] believed that a faster heating and a shorter holding time at the peak temperature in the reflow process using microwave energy can reduce the excessive growth of the IMC layer and its grain size. Besides that, another valuable advantage of using microwave energy is the dramatic reduction in reaction times such as from days and hours to minutes and seconds [12]. Microwave heating is fundamentally different from conventional furnace heating [13].…”

Section: Introductionmentioning

confidence: 99%