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Ahimsa, Gadmon
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Chemical Engineering, Chemistry & Bioengineering Education Social Sciences

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Sintesis katalis asam heterogen berbasis polivinil alkohol (PVA) dan pemanfaatannya dalam produksi metil ester asam lemak Hartono, Ryan; Muljana, Henky; Sugih, Asaf Kleopas; Oemar, Usman; Atin, Jessica; Ahimsa, Gadmon
Jurnal Rekayasa Proses Vol 17, No 2 (2023)
Publisher : Departemen Teknik Kimia Fakultas Teknik Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jrekpros.84514

Abstract

Sulfonated polyvinyl alcohol is a potential heterogeneous acid catalyst for fatty acid methyl esters (FAME) production. The catalyst (PVA/SSA) was synthesized via an esterification reaction between polyvinyl alcohol (PVA) and sulfosuccinic acid (SSA). This research aimed to study the effect of several process variables, such as the molecular weight (MW) of PVA, washing step with methanol, annealing conditions (time, temperature, and annealing pressure), and drying temperature on the performance of the PVA/SSA catalyst in methanol and free fatty acid (FFA) esterification. The sulfonated PVA catalyst was successfully synthesized, as indicated by the presence of the sulfonate group (SO3) at an absorption band of 1267 cm-1 and the carbonyl group (C=O) at an absorption band of 1628 cm-1 in the FT-IR spectra. The resulting PVA/SSA catalyst shows a good performance, where maximum conversion of the fatty acid esterification reaction can reach 81.9%. In addition, the catalyst can be used for at least four repetitions with a decrease in FAME conversion from the first to the second stage of 28.2% and has relatively stable performance in the second and subsequent reactions (conversion range 49, 1% - 58.8%). The resulting catalyst also has good thermal stability with a first-stage degradation range of 200oC to 290oC, allowing it to be applied in a temperature range suitable to the FAME manufacturing industries requirement.
Sintesis katalis asam heterogen berbasis polivinil alkohol (PVA) dan pemanfaatannya dalam produksi metil ester asam lemak Hartono, Ryan; Muljana, Henky; Sugih, Asaf Kleopas; Oemar, Usman; Atin, Jessica; Ahimsa, Gadmon
Jurnal Rekayasa Proses Vol 17, No 2 (2023)
Publisher : Departemen Teknik Kimia Fakultas Teknik Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jrekpros.84514

Abstract

Sulfonated polyvinyl alcohol is a potential heterogeneous acid catalyst for fatty acid methyl esters (FAME) production. The catalyst (PVA/SSA) was synthesized via an esterification reaction between polyvinyl alcohol (PVA) and sulfosuccinic acid (SSA). This research aimed to study the effect of several process variables, such as the molecular weight (MW) of PVA, washing step with methanol, annealing conditions (time, temperature, and annealing pressure), and drying temperature on the performance of the PVA/SSA catalyst in methanol and free fatty acid (FFA) esterification. The sulfonated PVA catalyst was successfully synthesized, as indicated by the presence of the sulfonate group (SO3) at an absorption band of 1267 cm-1 and the carbonyl group (C=O) at an absorption band of 1628 cm-1 in the FT-IR spectra. The resulting PVA/SSA catalyst shows a good performance, where maximum conversion of the fatty acid esterification reaction can reach 81.9%. In addition, the catalyst can be used for at least four repetitions with a decrease in FAME conversion from the first to the second stage of 28.2% and has relatively stable performance in the second and subsequent reactions (conversion range 49, 1% - 58.8%). The resulting catalyst also has good thermal stability with a first-stage degradation range of 200oC to 290oC, allowing it to be applied in a temperature range suitable to the FAME manufacturing industries requirement.
Sintesis katalis asam heterogen berbasis polivinil alkohol (PVA) dan pemanfaatannya dalam produksi metil ester asam lemak Hartono, Ryan; Reinaldo, Nicholas; Muljana, Henky; Sugih, Asaf Kleopas; Oemar, Usman; Atin, Jessica; Ahimsa, Gadmon
Jurnal Rekayasa Proses Vol 17 No 2 (2023): Volume 17, Number 2, 2023
Publisher : Jurnal Rekayasa Proses

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jrekpros.84514

Abstract

Polivinil alkohol tersulfonasi merupakan katalis asam heterogen yang potensial untuk produksi metil ester asam lemak (FAME). Katalis (PVA/SSA) disintesis melalui reaksi esterifikasi antara polivinil alkohol (PVA) dan asam sulfosuksinat (SSA). Penelitian ini bertujuan untuk mempelajari pengaruh beberapa variabel proses seperti berat molekul (MW) PVA, tahap pencucian dengan metanol, kondisi annealing (waktu, suhu, dan tekanan annealing), dan suhu pengeringan terhadap kinerja PVA/ Katalis SSA dalam esterifikasi metanol dan asam lemak bebas (FFA). Katalis PVA tersulfonasi berhasil disintesis, ditandai dengan adanya gugus sulfonat (SO3) pada pita serapan 1267 cm-1 dan gugus karbonil (C=O) pada pita serapan 1628 cm-1 pada FT. -Spektrum IR. Katalis PVA/SSA yang dihasilkan menunjukkan kinerja yang baik, dimana konversi maksimum reaksi esterifikasi asam lemak dapat mencapai 81,9%. Selain itu, katalis dapat digunakan minimal empat kali pengulangan dengan penurunan konversi FAME dari tahap pertama ke tahap kedua sebesar 28,2% dan memiliki kinerja yang relatif stabil pada reaksi kedua dan selanjutnya (kisaran konversi 49,1% - 58,8% ). Katalis yang dihasilkan juga memiliki stabilitas termal yang baik dengan kisaran degradasi tahap pertama 200oC hingga 290oC, sehingga memungkinkan untuk diterapkan pada kisaran suhu yang sesuai dengan kebutuhan industri manufaktur FAME.
Co-Authors Asaf Kleopas Sugih Atin, Jessica Hartono, Ryan Henky Muljana Oemar, Usman Reinaldo, Nicholas