Characterization of a 5 Litre Continuous Stirred Tank Reactor

Igbokwe, Philomena K.; Nwabanne, Joseph Tagbo; Gadzama, Samuel Wadzani

doi:10.4236/wjet.2015.32003

Cited by 4 publications

(2 citation statements)

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“…The amount of mash leaving the CSTR before or after the estimated mean residence time is dependent on the reactor's flow setting, the geometry, and the number of reactors. The RTD, representing the statistical behaviour of all volume elements can be determined by tracer experiments (Tsai and Chen, 2013;Igbokwe et al, 2015). Such experiments are only suitable to predict the RTD depending on a specific set of settings such as flow rate and reactor volume.…”

Section: Tablementioning

confidence: 99%

A continuous mashing system controlled by mean residence time

et al. 2023

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Continuous processes offer more environmentally friendlier beer production compared to the batch production. However, the continuous production of mashing has not become state-of-the-art in the brewing industry. The controllability and flexibility of this process still has hurdles for practical implementation, but which are necessary to react to changing raw materials. Once overcome, a continuous mashing can be efficiently adapted to the raw materials. Both mean residence time and temperature were investigated as key parameters to influence the extract and fermentable sugar content of the wort. The continuous mashing process was implemented as continuous stirred tank reactor (CSTR) cascade consisting of mashing in (20°C), protein rest (50°C), β-amylase rest (62-64°C), saccharification rest (72°C) and mashing out (78°C). Two different temperature settings for the β-amylase rest were investigated with particular emphasis on fermentable sugars. Analysis of Variance (ANOVA) and a post-hoc analysis showed that the mean residence time and temperature settings were suitable control parameters for the fermentable sugars. In the experimental conditions, the most pronounced effect was with the β-amylase rest. These results broaden the understanding of heterogenous CSTR mashing systems about assembly and selection of process parameters

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Section: Tablementioning

confidence: 99%

A continuous mashing system controlled by mean residence time

et al. 2023

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“…Igbokwe et. al, [15] discussed the characterization of a 5 Litres continuous stirred tank reactor. Tracer experimentation was carried out on the reactor and the effect of different parameters such as stirring speed, concentration at a steady time interval was analyzed.…”

Section: Introductionmentioning

confidence: 99%

Design analysis and construction of a biodiesel processing plant

Adeshola Oluremi OPENIBO,

Olusegun Afolabi ADEFUYE,

Rafiu Olalekan KUKU

et al. 2023

Global J. Eng. Technol. Adv.

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This research focuses on the design, analysis, and construction of a biodiesel processing plant with the aim of improving global processes, control, and overall design efficiency. Biodiesel, a renewable energy source, offers environmental benefits and extends engine life. The study addresses the challenges associated with biodiesel usage, such as higher initial costs and potential engine issues, and proposes the use of waste vegetable oil to reduce processing costs. Various reactor designs from past studies are analyzed, emphasizing the need for effective mixing techniques. The research presents a novel prototype reactor and considers the selection of materials, stresses, strains, and insulation for each tank. Additionally, the study explores the use of different heating elements, including mica band heaters and immersion heaters, to achieve the required temperatures for transesterification. The findings also discuss the selection of gear motors and pumps for effective mixing and fluid transfer. The results of the construction and assembly of the biodiesel plant are presented, highlighting the inclusion of various accessories to enhance functionality. Finally, the research emphasizes the economic and environmental advantages of biodiesel production, considering energy consumption and cost savings in the Nigerian context.

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