Comparison of Performance of Various Homogeneous Alkali
Catalysts in Transesterification of Waste Cooking Oil

Miyuranga, K.A. Viraj; Balasuriya, B.M.C.M.; Arachchige, Udara S.P.R.; Jayasinghe, Randika; Weerasekara, N.A.

doi:10.14233/ajchem.2022.23849

Cited by 4 publications

(2 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Hence, the variation in the mesh quality is expected to influence the overall slug sizes, leading to difficulties in achieving asymptotic mesh quality, even if the highest possible meshing quality has been created. Previous observations supported such an investigation where the multiphase flow simulation via the VOF model was highly mesh dependent [9]. It is postulated that the trade-off between meshing quality and computational time has resulted in this discrepancy.…”

Section: Slug Formationmentioning

confidence: 77%

Investigation of Mass-Transfer Performance for Biodiesel Reaction in Microchannel Reactor using Volume-of-Fluid with Species-Transport Model

et al. 2023

View full text Add to dashboard Cite

A microchannel reactor improves the overall mass and heat transfer as compared with a conventional reactor. This is attributed to the creation of a high area-to-volume ratio and enhanced mixing due to the presence of the vortices inside the slug. In this paper, the mass-transfer performance was studied using a cross-junction microchannel. Subsequently, the computational fluid dynamic (CFD) method was used to observe the oil concentration contour inside a slug using volume-of-fluid (VOF) with the species-transport model. Based on the simulation results, the oil concentration was accumulated in both the slug’s rear and front regions. Hence, the creation of four vortices resulted in the creation of dead zones at the low-oil-concentration region. Furthermore, it has been observed that an optimum flow rate in a microchannel reactor is required to achieve a high mass transfer. A higher oil concentration was measured during the slug formation at a low flow regime due to the long residence time. In contrast, a high mass transfer has been reported during the slug-moving stage due to the higher vortices velocity, resulting in enhanced mixing and mass transfer. Hence, slug forming and the moving stage substantially influenced mass transfer at low and high flow rates, respectively.

show abstract

Section: Slug Formationmentioning

confidence: 77%

Investigation of Mass-Transfer Performance for Biodiesel Reaction in Microchannel Reactor using Volume-of-Fluid with Species-Transport Model

et al. 2023

View full text Add to dashboard Cite

show abstract

“…Reaksi ini biasanya berlangsung pada kisaran suhu 60°C -80°C dan waktu yang relatif singkat (Ruhaiya et al, 2020). Penelitian mengenai transesterifikasi biodiesel dengan katalis basa telah dilakukan oleh beberapa peneliti (Chinglenthoiba et al, 2020;Hidayati et al, 2017;Miyuranga et al, 2022;Reyero et al, 2015).…”

Section: A Latar Belakangunclassified

Diseminasi Teknologi Tepat Guna Alat Pengolah Minyak Jelantah Menjadi Biodiesel Bagi Masyarakat Kecamatan Jambangan Surabaya

Retnoningtyas,

Gunawan,

Putro

et al. 2024

JMM

View full text Add to dashboard Cite

Abstrak: Minyak goreng bekas pakai atau minyak jelantah merupakan salah satu limbah rumah tangga terbesar di Indonesia. Minyak jelantah yang dibuang sembarangan dapat mencemari lingkungan. Masyarakat di kecamatan Jambangan, kota Surabaya sangat menyadari dampak buruk dari pencemaran minyak jelantah terhadap lingkungan. Karena itulah diinginkan mengolah minyak jelantah yang telah dikumpulkan sebagai bahan bakar biodiesel. Tujuan pengabdian masyarakat ini adalah untuk meningkatkan kesadaran masyarakat Jambangan agar tidak membuang secara sembarangan limbah minyak jelantah sehingga dapat menurunkan jumlah limbah minyak jelantah yang dibuang ke lingkungan. Metode kegiatan yang dilaksanakan adalah melakukan edukasi berupa pemberian materi dan praktek cara mengubah limbah minyak jelantah menjadi biodiesel menggunakan alat pengolah minyak jelantah. Untuk memudahkan pengoperasian alat pengolah minyak jelantah ini, didampingi dengan manual penggunaannya yang disusun menggunakan bahasa yang mudah dipahami oleh masyarakat sehingga dapat belajar secara mandiri. Mitra yang terlibat dalam kegiatan ini adalah Ikatan Pekerja Sosial Masyarakat (IPSM) Jambangan dan masyarakat kelurahan Karah, kecamatan Jambangan. Hasil dari aktivitas ini, masyarakat kecamatan Jambangan Surabaya dapat mempraktekkan langsung proses pengolahan minyak jelantah menjadi biodiesel. Bahkan dalam hasil evaluasi kuesionernya, mayoritas yaitu sebanyak 72% ingin mengikuti kompetisi di wilayahnya dengan memanfaatkan alat pengolah minyak jelantah ini. Hal ini tentunya menunjukkan apresiasi yang luarbiasa terhadap kegiatan abdimas ini.Abstract: Used cooking oil residue or known as ‘jelantah’ oil is one of the largest household wastes in Indonesia. Used cooking oil residue that is thrown away carelessly can pollute the environment. People in Jambangan sub-district, Surabaya city are very aware of the negative impact of used cooking oil pollution on the environment. That's why it is desirable to process the collected ‘jelantah’ oil as biodiesel fuel. The aim of this community service is to increase awareness of the Jambangan community not to carelessly dispose of used cooking oil waste so that it can reduce the amount of used cooking oil waste that is thrown into the environment. The method of activity is to provide education in the form of providing material and practice on how to convert used cooking oil waste into biodiesel using used cooking oil processing equipment. To make it easier to operate this used cooking oil processing tool, it is accompanied by a manual for its use which is prepared using language that is easy for the public to understand so that they can learn independently. The partners involved in this activity are the Jambangan Community Social Workers Association (IPSM) and the community of Karah - Jambangan sub-district. As a result of this activity, the people of Jambangan Surabaya sub-district can directly practice the process of ‘jelantah’ oil into biodiesel. Even in the results of the questionnaire evaluation, the majority, namely 72%, wanted to take part in competitions in their area using this used ‘jelantah’ oil processing equipment. This certainly shows extraordinary appreciation for this community service activity.

show abstract

Biodiesel Production through the Transesterification of Waste Cooking Oil over Typical Heterogeneous Base or Acid Catalysts

et al. 2023

View full text Add to dashboard Cite

For the production of biodiesel from waste cooking oil with an acid value of 1.86 mg KOH/g, five heterogeneous catalysts—Ba(OH)2, CaO, MgO, ZnO, and AlCl3—were employed. To optimize the reaction parameters of each catalyst, the influence of crucial process variables, such as catalyst loading, methanol-to-oil ratio, and reaction duration, was investigated. In addition, the effect of acetone as a cosolvent toward the progress of biodiesel production and the reusability of the heterogeneous catalysts were also examined, and the data were statistically evaluated with a 95% confidence level. Ba(OH)2 performed exceptionally well, with a 92 wt.% biodiesel yield, followed by CaO with an 84 wt.% yield. However, none of the results for MgO, ZnO, or AlCl3 were adequate. In addition, regardless of the type of catalyst utilized, adding 20 vol.% acetone to the biodiesel manufacturing process led to an increase in output. Furthermore, every heterogeneous catalyst was reusable, but only Ba(OH)2 and CaO produced a significant yield until the third cycle. The other catalysts did not produce yields of any significance.

show abstract

Comparison of Performance of Various Homogeneous Alkali Catalysts in Transesterification of Waste Cooking Oil

Cited by 4 publications

References 28 publications

Investigation of Mass-Transfer Performance for Biodiesel Reaction in Microchannel Reactor using Volume-of-Fluid with Species-Transport Model

Investigation of Mass-Transfer Performance for Biodiesel Reaction in Microchannel Reactor using Volume-of-Fluid with Species-Transport Model

Diseminasi Teknologi Tepat Guna Alat Pengolah Minyak Jelantah Menjadi Biodiesel Bagi Masyarakat Kecamatan Jambangan Surabaya

Biodiesel Production through the Transesterification of Waste Cooking Oil over Typical Heterogeneous Base or Acid Catalysts

Contact Info

Product

Resources

About