[논문]Effects of mixing technologies on continuous methyl ester production: Comparison of using plug flow, static mixer, and ultrasound clamp

Somnuk, Krit; Prasit, Tanongsak; Prateepchaikul, Gumpon

doi:10.1016/j.enconman.2017.02.066

Effects of mixing technologies on continuous methyl ester production: Comparison of using plug flow, static mixer, and ultrasound clamp

Energy conversion and management, v.140, 2017년, pp.91 - 97

Somnuk, Krit (Corresponding author.) , Prasit, Tanongsak , Prateepchaikul, Gumpon

Abstract ▼ AI-Helper

Abstract Four types of continuous reactors, namely plug flow reactor (PF), static mixer reactor (SM), ultrasound clamp on tubular reactor (US), and static mixer combined with ultrasound (SM/US) were compared for their purities of methyl ester in biodiesel production from refined palm oil (RPO). The reactor conditions were: KOH 4, 6, 8, 10, and 12gL−1, methanol content 20vol.%, and under 20Lh−1 RPO flow rate at 60°C temperature. The highest purity of methyl esters: 81.99wt.% for PF, 95.70wt.% for SM, 98.98wt.% for US, and 97.67wt.% for SM/US, were achieved with 900mm, 900mm, 700mm, and 900mm reactor lengths respectively, and 12gL−1 of KOH was used in all cases. The 16×400W ultrasound clamp was operated at 20kHz frequency, and among short length reactors the US case was more effective than PF, SM, or SM/US. Moreover, ester purity from the US reactor was slightly decreased by the lowest 4gL−1 KOH. The US reactor was clearly superior over the other types of continuous reactor, and had the potential to reduce KOH consumption by sonochemical effects on the base-catalyzed transesterification reaction. Highlights Four types of continuous reactors were compared with methyl ester conversion. Plug flow, static mixer, ultrasound clamp, SM with ultrasound reactors were tested. The 16×400W ultrasound clamps were operated at 20kHz frequency for US reactor. The US reactor was clearly superior over the other types of continuous reactor. The US reactor was the most effective alternative with short reactor length.

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Effects of mixing technologies on continuous methyl ester production: Comparison of using plug flow, static mixer, and ultrasound clamp

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