Call us toll-free

Physical Mechanism of Ultrasound-Assisted Synthesis …

Physical Mechanism of Ultrasound-Assisted Synthesis of Biodiesel

Approximate price

Pages:

275 Words

$19,50

Physical Mechanism of Ultrasound-Assisted ..

Acceleration of the transesterification reaction for synthesis of biodiesel by application of ultrasound is known. This paper tries to establish the mechanism of this enhancement by discriminating between physical and chemical effects of ultrasound. Experiments with different conditions have been coupled to a bubble dynamics model. It is revealed that influence of ultrasound on transesterification reaction is of purely physical nature. Formation of fine emulsion between oil and alcohol due to microturbulence generated by cavitation bubbles generates enormous interfacial area, which accelerates the reaction. For the power input used in the present experiments, the temperature peak reached in transient collapse of cavitation bubble in methanol is found to be too low to produce any radical species, which can induce transesterification reaction. The yield of the reaction is found to have an optimum with respect to alcohol to oil molar ratio. This result is attributed to the difference in intensity of microturbulence produced by cavitation bubbles in oil and methanol.

Physical and Chemical Mechanisms of Ultrasound in Biofuel Synthesis

The mechanism of ultrasound assisted acid catalysed transesterification was analysed by the quantitative estimation of physical and chemical effects through simulations of cavitation bubble dynamics.

Physical and Chemical Mechanisms of Ultrasound in Biofuel Synthesis.

09/04/2014 · Physical mechanism of ultrasound-assisted synthesis of biodiesel

Acceleration of the transesterification reaction for synthesis of biodiesel by application of ultrasound is known. This paper tries to establish the mechanism of this enhancement by discriminating between physical and chemical effects of ultrasound. Experiments with different conditions have been coupled to a bubble dynamics model. It is revealed that influence of ultrasound on transesterification reaction is of purely physical nature. Formation of fine emulsion between oil and alcohol due to microturbulence generated by cavitation bubbles generates enormous interfacial area, which accelerates the reaction. For the power input used in the present experiments, the temperature peak reached in transient collapse of cavitation bubble in methanol is found to be too low to produce any radical species, which can induce transesterification reaction. The yield of the reaction is found to have an optimum with respect to alcohol to oil molar ratio. This result is attributed to the difference in intensity of microturbulence produced by cavitation bubbles in oil and methanol.

Physical mechanism of ultrasound-assisted synthesis ..

Physical mechanism of ultrasound assisted processes for ..

Physical mechanism of ultrasound-assisted synthesis of biodiesel.
Order now
  • physical and chemical effects of ultrasound.

    Acceleration of the transesterification reaction for synthesis of biodiesel by application of ultrasound is known

  • 19/12/2017 · Request (PDF) | Physical Mechanism o..

    | Acceleration of the transesterification reaction for synthesis of biodiesel by application of …

  • Physical and Chemical Mechanisms of Ultrasound in …

    Ultrasound assisted biodiesel production in presence ..

Order now
  • Kim

    "I have always been impressed by the quick turnaround and your thoroughness. Easily the most professional essay writing service on the web."

  • Paul

    "Your assistance and the first class service is much appreciated. My essay reads so well and without your help I'm sure I would have been marked down again on grammar and syntax."

  • Ellen

    "Thanks again for your excellent work with my assignments. No doubts you're true experts at what you do and very approachable."

  • Joyce

    "Very professional, cheap and friendly service. Thanks for writing two important essays for me, I wouldn't have written it myself because of the tight deadline."

  • Albert

    "Thanks for your cautious eye, attention to detail and overall superb service. Thanks to you, now I am confident that I can submit my term paper on time."

  • Mary

    "Thank you for the GREAT work you have done. Just wanted to tell that I'm very happy with my essay and will get back with more assignments soon."

Ready to tackle your homework?

Place an order