Article Per Year (5 Year)
p-Index From 2021 - 2026
2.707
P-Index
This Author published in this journals
All Journal Jurnal Rekayasa Proses International Journal of Renewable Energy Development Seminar Nasional Teknik Kimia Kejuangan Journal of Engineering and Technological Sciences Jurnal Sains & Teknologi Lingkungan Indonesian Journal of Chemistry Jurnal Chemurgy Jurnal Rekayasa Proses Indonesian Journal of Life Cycle Assessment and Sustainability ASEAN Journal of Chemical Engineering PELS (Procedia of Engineering and Life Science) Bulletin of Chemical Reaction Engineering & Catalysis Jurnal Rekayasa Proses (Journal of Environmental Sustainability Management) Scientific Contributions Oil and Gas
Muhammad Mufti Azis
Chemical Engineering Department, Faculty Of Engineering, Gadjah Mada University, Yogyakarta
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Energy Engineering Environmental Science Social Sciences Other

Published : 35 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 35 Documents
Search

 1   2   3   4 
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
Demineralisasi Batubara Berkadar Abu Tinggi dengan Leaching Menggunakan Alkali Ikhsana, Mifta Aulia; 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

The study was comdustred on the demineralization of Jambi coal with high ash content as an effort to improve quality. The coal selected first crushed to -80 + 115 mesh. Demineralization was carried out using leacjing process with NaOH 20, 25, and 30% (%weight). The best parameter was used in subsequent leaching process to determine the effect of temperature of 50, 70, 90oC. The result showed that the percentage of demineralization increased with increasing demineralization reduction 34%
Preparation and Characterization of Ni/H-ZSM-5 Catalysts for Producing Green Diesel from Palmitic Acid Kurniati, Sayekti; Azis, Muhammad Mufti; Dwiatmoko, Adid Adep
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

Biofuel is a promising alternative as a sustainable energy resource in the transportation sector in Indonesia. Green diesel is one of biofuels that can be produced from feedstock containing fatty acid. Fatty acid conversion to green diesel can be conducted via hydrodecarboxylation or hydrodeoxygenation process. Catalyst Ni/H-ZSM-5 is a potential catalyst to convert fatty acid to n-alkane which is the main component in green diesel. In this work, we prepared Ni/H-ZSM-5 catalyst with various Ni loading of 7%, 13%, 18%, and 25%, respectively. The catalysts were synthesized according to a simple incipient wetness impregnation method. Those catalysts were characterized with X-ray fluorescence, Field-Emission Scanning Electron Microscopy, and NH3-TPD. The highest nickel-loading catalyst, Ni 25%/H-ZSM-5, gave the best dispersion. NH3-TPD results showed the presence of two acid sites, namely Brønsted acid site and Lewis acid site. The presence of Brønsted acid sites is crucial to facilitate fatty acid conversion to n-alkane.
Catalytic Pyrolysis of Corn Cob Using Fe-Ni/Char Catalyst Safitri, Mutia; Azis, Muhammad Mufti; Wintoko, Joko; Kristanto, Jonas; Caroko, Novi
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

There is a growing interest to convert biomass waste such as corn cob to biofuel. Thermal conversion such as pyrolisis may play an important role to produce bio-oil. The objective of this research was to develop a kinetic study of catalytic pyrolysis of corn cob over Fe-Ni/Char catalyst using Thermogravimetric Analysis (TGA). The solid catalyst was prepared by impregnation method. The ratio of the percentages of Fe and Ni metals in the X-Ray Fluorescence (XRF) analysis of the catalyst was close to 1:1, resulting in metal loading values of 2.5% (1.062% and 1.013%), 5% (2.291% and 2.794%), and 10% (4.947% and 5.417%) for the catalyst. The pyrolysis experiments were performed using various catalyst loadings of 0, 2.5, 5, and 10%. In addition, the present study also investigated the influence of heating rates of 5, 10, and 20 K min-1. Two isoconversion models, Kissinger-Akahira-Sunose (KAS) and Ozawa-Flynn-Wall (OFW) were utilized to determine the activation energies. The activation energies calculated using the KAS and OFW models revealed a consistent trend, with values of activation energy of corn cob pyrolysis around 124 - 303 kJ/mol and 133 - 313 kJ/mol, respectively.
High Thermal Stability Silica Nanofluids For EOR in Sandstone Reservoir Subagio, Agus; Rowi, Khasan; Rowi, Ngadiwiyana; Taufiq, Heydar Ruffa; Azis, Muhammad Mufti; Prasetiyo, Bayu Dedi; Sitompul, Victor; Paryoto, Sumadi; Winata, Denie Tirta; Diharja, Tino; Yutaka, Michael Arya; Syarifudin, Abimanyu Putra; Firmansyah, Wahyu; Koestono, Hary
Scientific Contributions Oil and Gas Vol 49 No 1 (2026)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/scog.v49i1.2000

Abstract

The development of silica nanofluids for enhanced oil recovery (EOR) has gained significant attention. However,  their application is limited bypoor stability under high temperature, and high salinity conditions. Our previous studies demonstrated that using the anionic surfactant alpha olefin sulfonate (AOS) combined with the co surfactant disodium laurent sulfosuccinate (DLS) at consentrations of 0.3% AOS and 0.3% DLS significantly enhanced thermal stabilility, reduced IFT, decreased wettability, and increased incremental oil recovery. This study reports a one step synthesis method for preparing silica nanofluids using hydrophilic colloidal nano silica (CNS) stabilized with the AOS and DLS at surfactant concentrations above 0.3%. Nanofluids were formulated with formation water from a reservoir in Sumatra, Indonesia. We systematically evaluated the effects of AOS-DLS concentrations on the thermal stability, turbidity, interfacial tension (IFT), wettability, filtration test, and core flooding performance. The optimized formulation of stable silica nanofluids for EOR applications under reservoir relevant conditions was also systematically evaluated. The silica nanofluid (0.3% AOS + 0.3% DLS) exhibited more than 3 months of stability at 60 °C. It also had a low contact angle of 13.88 ͦ and a reduced IFT of 6.3x10-1 mN/m. The filtration ratio was 1.2. Spontaneous imbibition resulted in a recovery factor (RF) of 59%. Core flooding analysis yielded an incremental RF of 12.9% of the OOIP. These results demonstrate the synergistic role of silica nanoparticles and surfactants in improving nanofluid stability, reducing IFT, and enhancing oil recovery. This supports their potential application in chemical flooding for sandstone reservoirs.
Co-Authors Agus Subagio Alfian Hayu Sudibya Andriani, Anisa Novi Anis Nurdhiani Rosdi Arief Budiman Ariff Trisetia Anggara Arista Dwi Rahmawati Caroko, Novi Damayanti, Sri Ismiyati Derek Creaser Desi Amalia Fenyka Diharja, Tino Dwiatmoko, Adid Adep Edwin Nur Huda Fergie Febrina Galuh Almas Darmawati Hartanto, Danang Tri Hary Sulistyo Hary Sulistyo Hary Sulistyo Hary Sulistyo Haryanto, Imam Hilya Mudrika Arini Himawan Novianto Ignesti Anindia Ikhsana, Mifta Aulia Imam Karfendi Putro Indah Hartati Indah Hartati Intan Supraba, Intan Irma Atika Sari Jonas Kristanto Khasan Rowi Koestono, Hary Kristanto, Jonas Kurniati, Sayekti Margaretha Praba Aulia Moh Fahrurrozi Moh Fahrurrozi Mohd Razif Harun Muhammad Abdul Ghony Muhammad Kurniawan Adiputra Muhammad Noor Ridho Aji Muslikhin Hidayat Nur Baiti Listyaningrum Paryoto, Sumadi Prasetiyo, Bayu Dedi Ramadhani, Laily Isna Ringgani, Retno Rio Arya Pratama Rizki Zulapriansyah Rochmadi Rochmadi Rochmadi Rochmadi Rochmadi Rochmadi Rowi, Ngadiwiyana Sabariyanto Sabariyanto Safitri, Mutia Sarto Sarto Sarto Sarto Sarto Sarto Siti Syamsiah Sitompul, Victor Soni Hartanto Sudibyo, Hanifrahmawan Suprihastuti Sri Rahayu Suryo Purwono Sutijan Sutijan Sutijan Sutijan Syarifudin, Abimanyu Putra Taufiq, Heydar Ruffa Titi Tiara Anasstasia Titi tiara Anasstasia Titi Tiara Anasstasia Titi Tiara Anasstasia Tri Sarifah Utami WAHYU FIRMANSYAH Wahyudi Budi Sediawan Wahyudi Budi Sediawan Wahyudi Budi Sediawan Winata, Denie Tirta Wingo Wira Dewanatan Wiratni Budhijanto Wulandari, Lisa Ayu Yutaka, Michael Arya