Ekstraksi Cair-Cair Aseton dan N-Heksana Menggunakan Deep Eutectic Solvent (DES) Sebagai Ekstraktan Ramah Lingkungan

Furtiansyah, Ahmad Azizurrochim and Nurmala, Leila Hardiyanti (2026) Ekstraksi Cair-Cair Aseton dan N-Heksana Menggunakan Deep Eutectic Solvent (DES) Sebagai Ekstraktan Ramah Lingkungan. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Sistem pelarut campuran acetone dan n-hexane banyak digunakan dalam industri kimia, salah satunya pada proses ekstraksi cottonseed oil. Namun, proses tersebut menghasilkan limbah cair yang mengandung acetone dan n-hexane sebagai volatile organic compounds (VOC) yang berpotensi membahayakan kesehatan manusia dan lingkungan. Selain itu, campuran acetone dan n-hexane membentuk sistem azeotrop sehingga sulit dipisahkan dengan metode konvensional. Oleh karena itu, diperlukan teknologi pemisahan yang efektif melalui ekstraksi cair-cair. Penelitian ini bertujuan mengevaluasi pengaruh Deep Eutectic Solvent (DES) terhadap kinerja ekstraksi berdasarkan separation factor dan koefisien distribusi, menyajikan data kesetimbangan cair-cair (Liquid-Liquid Equilibrium, LLE) sistem n-hexane-acetone menggunakan DES berbasis ChCl-EG dan ChCl-DEG serta membandingkannya dengan pelarut organik EG dan DEG pada temperatur 303,15 K dan tekanan 101,3 kPa. Data LLE dikorelasikan menggunakan model NRTL dan UNIQUAC, diprediksi menggunakan model UNIAC, kemudian disimulasikan dengan Aspen Plus untuk memperoleh parameter desain kolom ekstraksi. Hasil prediksi menunjukkan bahwa sistem ChCl-DEG memberikan kinerja pemisahan terbaik dengan luas daerah dua fase terbesar, nilai koefisien distribusi dan separation factor tertinggi masing-masing sebesar 24,9689 dan 178,0659, serta mempertahankan daerah dua fase hingga fraksi massa acetone 0,8034. Hasil simulasi menunjukkan bahwa ChCl-DEG merupakan pelarut paling efisien dengan recovery acetone mencapai 99,99% pada kebutuhan pelarut terendah sebesar 25 kg/jam dan hanya memerlukan 6 stage, sehingga lebih unggul dibanding pelarut organik EG dan DEG untuk pemisahan sistem n-hexane-acetone.
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Solvent systems consisting of a mixture of acetone and n-hexane are widely used in the chemical industry, including in the extraction of cottonseed oil. However, this process produces liquid waste containing acetone and n-hexane as volatile organic compounds (VOCs) that pose potential risks to human health and the environment. Furthermore, the acetone-n-hexane mixture forms an azeotropic system, making it difficult to separate using conventional methods. Therefore, effective separation technology via liquid-liquid extraction is required. This study aims to evaluate the effect of Deep Eutectic Solvents (DES) on extraction performance based on the separation factor and distribution coefficient, present liquid-liquid equilibrium (Liquid-Liquid Equilibrium, LLE) of the n-hexane-acetone system using ChCl-EG- and ChCl-DEG-based DES, and compare them with the organic solvents EG and DEG at a temperature of 303.15 K and a pressure of 101.3 kPa. The LLE data were correlated using the NRTL and UNIQUAC models, predicted using the UNIFAC model, and then simulated with Aspen Plus to obtain the design parameters for the extraction column. The prediction results showed that the ChCl-DEG system provided the best separation performance with the largest two-phase region, the highest distribution coefficient and separation factor values of 24.9689 and 178.0659, respectively, and maintained the two-phase region up to an acetone mass fraction of 0.8034. The simulation results indicated that ChCl-DEG is the most suitable solvent.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Acetone, Azeotrope, Deep Eutectic Solvent (DES), Liquid–Liquid Extraction, nhexane, Acetone, Azeotrop, Deep Eutectic Solvent (DES), Ekstraksi Cair–Cair, n-hexane
Subjects:	T Technology > TP Chemical technology > TP1151 Special molding and casting processes T Technology > TP Chemical technology > TP155.7 Chemical processes. T Technology > TP Chemical technology > TP156 Crystallization. Extraction (Chemistry). Fermentation. Distillation. Emulsions.
Divisions:	Faculty of Vocational > 24305-Industrial Chemical Engineering Technology
Depositing User:	Ahmad Azizurrochim Furtiansyah
Date Deposited:	01 Aug 2026 06:48
Last Modified:	01 Aug 2026 06:48
URI:	http://repository.its.ac.id/id/eprint/141600

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