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Thermal Stability Test and Formulation of Sodium Lignosulfonate with Isoamyl Alcohol as EOR Surfactant Andriani, Anisa Novi; Azis, Muhammad Mufti; Purwono, Suryo
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2023: PROSIDING SNTKK 2023
Publisher : Seminar Nasional Teknik Kimia "Kejuangan"

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Sodium lignosulfonate (SLS) is a promising low-cost surfactant that can be prepared from biomass. There has been large interest to utilize SLS as a chemical Enhanced Oil Recovery (EOR) surfactant. For that purpose, SLS is often mixed with other chemicals such as alcohols. The aim of this study was to find the best formulation of mixed-surfactant and to perform its thermal stability. The resulting mixed-surfactant was then characterized with variety of tests: aqueous stability, phase behavior, and IFT values. We found that a mixture that consists of 50 wt.% SLS, 30 wt.% Isoamyl Alcohol, and 20 wt.% of Palm Fatty Acid Distillate (PFAD) soap gave ultralow IFT at 1.864 × 10-3 mN/m. Phase behavior test shows that 1 wt% of mixed-surfactant formed a Winsor Type III. Subsequently, thermal stability test was conducted at 70°C for 90 days. The results showed that the IFT value fluctuates within the range of 10-3 mN/m for the first three weeks. After three weeks, the IFT values tend to increase to 10-2 mN/m until the end of the test. Hence, although ultralow IFT was achieved in the beginning of the test, further study is needed to improve the long-term stability of the present mixed-surfactant
Pengaruh Aktivator Asam Sulfat dan Natrium Klorida pada Karbon Aktif Batang Semu Pisang untuk Adsorpsi Fe Tarmidzi, Fadhil Muhammad; Putri, Maylina Anindita Sugiharti; Andriani, Anisa Novi; Alviany, Riza
Jurnal Rekayasa Bahan Alam dan Energi Berkelanjutan Vol. 5 No. 1 (2021)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rbaet.2021.005.01.03

Abstract

Batang semu pisang merupakan salah satu bahan alam kaya selulosa yang murah. Nilai batang semu pisang yang rendah dapat ditingkatkan menjadi material karbon aktif yang berkelanjutan dan ramah lingkungan. Karbon aktif batang pisang dapat digunakan untuk adosrpsi Fe dalam air baku. Sistem adsorpsi menjadi teknologi yang cocok untuk digunakan di daerah pedesaan yang mengandalkan air tanah. Oleh karena itu, penelitian ini bertujuan untuk mengembangkan sistem karbon aktif untuk adosrpsi Fe dari air tanah. Sintesis karbon aktif dilakukan dengan pencucian untuk menghilangkan getah dan komponen terlarut, pengeringan suhu 105oC selama 3 jam, karbonisasi suhu 400oC selama 30 menit, aktivasi asam menggunakan H2SO4, dan penetralan. Penelitian ini dilakukan untuk mempelajari pengaruh konsentrasi aktivator pada 0,3 M; 0,5 M; dan 0,7 M terhadap bilangan iodin dan kemampuan adosrpsi Fe. Konsentrasi Fe ditentukan dengan menggunakan spektroskopi adsorpsi atom (SSA). Hasil penelitian menunjukkan bahwa penggunaan aktivator 0,3 M H2SO4 memberikan hasil terbaik dengan bilangan iodin 58,23 mg/g dan Fe teradsorp sebanyak 80,85%.
Thermal Stability Test and Formulation of Sodium Lignosulfonate with Isoamyl Alcohol as EOR Surfactant Andriani, Anisa Novi; Azis, Muhammad Mufti; Purwono, Suryo
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2023: PROSIDING SNTKK 2023
Publisher : Seminar Nasional Teknik Kimia "Kejuangan"

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Sodium lignosulfonate (SLS) is a promising low-cost surfactant that can be prepared from biomass. There has been large interest to utilize SLS as a chemical Enhanced Oil Recovery (EOR) surfactant. For that purpose, SLS is often mixed with other chemicals such as alcohols. The aim of this study was to find the best formulation of mixed-surfactant and to perform its thermal stability. The resulting mixed-surfactant was then characterized with variety of tests: aqueous stability, phase behavior, and IFT values. We found that a mixture that consists of 50 wt.% SLS, 30 wt.% Isoamyl Alcohol, and 20 wt.% of Palm Fatty Acid Distillate (PFAD) soap gave ultralow IFT at 1.864 × 10-3 mN/m. Phase behavior test shows that 1 wt% of mixed-surfactant formed a Winsor Type III. Subsequently, thermal stability test was conducted at 70°C for 90 days. The results showed that the IFT value fluctuates within the range of 10-3 mN/m for the first three weeks. After three weeks, the IFT values tend to increase to 10-2 mN/m until the end of the test. Hence, although ultralow IFT was achieved in the beginning of the test, further study is needed to improve the long-term stability of the present mixed-surfactant