Catalytic production of biodiesel from waste cooking oil in a two-phase oscillatory baffled reactor: Deactivation kinetics and ANN modeling study

Ali, Mudheher M.; Gheni, Saba A.; Ahmed, Safaa M.R.; Hmood, Hassan M.; Hassan, Ahmed; Mohammed, Hiba R.; Mohammed, Sahar T.; Karakullukcu, Nalan T.

doi:10.1016/j.ecmx.2023.100383

Cited by 1 publication

(1 citation statement)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The main changes involve the tube reaction space. The technology includes annular baffles in the tubular reactor frame to create swirls for more intense stirring of the reaction mixture [70]. The analog of the continuous tubular reactor is the microchannel reactor, which provides a similar degree of conversion in less time.…”

Section: Introductionmentioning

confidence: 99%

The Physicochemical Basis for the Production of Rapeseed Oil Fatty Acid Esters in a Plug Flow Reactor

Kosolapova,

Smal,

Pyagay

et al. 2024

Processes

View full text Add to dashboard Cite

This article describes the results of a comprehensive comparative study of the production of fatty acid ethyl esters (FAEEs) for use as biodiesel in perfect mixing reactors (PMRs) and plug flow reactors (PFRs). The products obtained on a laboratory scale at all stages of the separation and purification of the FAEE phase were analyzed using the FTIR, XRF and GC-MS methods. We compared distillation methods for the separation of stoichiometrically excessive ethanol from the reaction mixture. Neutralization methods with H2SO4 solution and carbonation with CO2 were applied for FAEE phase purification from the catalyst. Emulsions formed during the water flushing stage were analyzed via the optical microscopy method. The optimal conditions of stirring speed and temperature were selected to maintain a high level of FAEE–water phase contact area with minimum phase separation time. The efficiency of the carbonation method for catalyst neutralization in the FAEE phase has been proven, allowing us to consider this method as an alternative to the traditional acid neutralization method. According to the results of experimental studies, we have developed a new high-performance technological scheme for the production of fatty acid esters in PFRs. The synthesis of FAEEs in a stoichiometric excess of ethanol of about 1:50 allowed us to increase the reaction rate and productivity of the synthesis unit after the transition from a PMR to a PFR. The yield of the product amounted to 86.7%. The purified FAEE fraction complied with most EN14214 specifications.

show abstract

Section: Introductionmentioning

confidence: 99%