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All Journal Majalah Forum Teknik UGM Jurnal Rekayasa Proses EKSAKTA: Journal of Sciences and Data Analysis International Journal of Renewable Energy Development Jurnal Sains dan Teknologi Jurnal Teknosains Jurnal Ketahanan Nasional Seminar Nasional Teknik Kimia Kejuangan Journal of Engineering and Technological Sciences Jurnal Kimia dan Kemasan Jurnal Sains Dan Teknologi Lingkungan Jurnal Sains & Teknologi Lingkungan Konversi Indonesian Journal of Chemistry Communications in Science and Technology Jurnal Rekayasa Proses JKPK (Jurnal Kimia dan Pendidikan Kimia) Jurnal Inovasi Teknik Kimia ASEAN Journal of Chemical Engineering Buletin Profesi Insinyur Prosiding Conference on Research and Community Services Jurnal Teknik Kimia Indonesia Jurnal Kimia dan Kemasan Jurnal Teknologi Lingkungan Lahan Basah Jurnal Manusia dan Lingkungan International Journal of Renewable Energy Development Bulletin of Chemical Reaction Engineering & Catalysis Jurnal Kesehatan Masyarakat

Suryo Purwono

Departemen Teknik Kimia, Fakultas Teknik, Universitas Gadjah Mada

Author-ID : 350259

Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Mechanical Engineering Public Health Social Sciences Other

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PENGARUH EPOKSIDASI MINYAK BIJI NYAMPLUNG (calophylluminophyllum L) DAN KOSURFAKTAN TERHADAP KINERJA SODIUM LIGNOSULFONAT (SLS) UNTUK ENHANCED OIL RECOVERY (EOR) Fitriani Fitriani; Suryo Purwono; Ahmad Tawfiequrrahman
Jurnal Inovasi Teknik Kimia Vol 2, No 1 (2017)
Publisher : Fakultas Teknik Universitas Wahid Hasyim

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31942/inteka.v2i1.1735

Rendahnya kemampuan produksi minyak bumi Indonesia disebabkan karena lapangan minyak Indonesia sebagian besar merupakan sumur-sumur tua (mature fields), sehingga produksi minyaknya rendah. Dalam rangka menanggulangi turunnya produksi minyak bumi, telah dikembangkan teknologi Enhanced Oil Recovery (EOR).Salah satuteknologi EOR yaitu injeksi kimia yang dapat berupa surfaktan.Senyawa epoksida dibuat dari minyak biji nyamplung (callophyluminophyllum L) yang terlebih dahulu disabunkan. Reaksi epoksidasi dilakukan secara in-situ yang terdiri dari asam asetat dan hydrogen peroksida dan tahap selanjunya adalah reaksi asam perasetat dengan sabun.Reaksi dilakukan dalam reaktor batch yang dilengkapi pengaduk dengan variasi suhu 30, 40, 50, dan 600C dengan variasi waktu reaksi selama 15, 30, 60, dan 90 menit. Model kinetika reaksi epoksidasi diasumsikan mengikuti model pseudo-first dan berdasarkan persamaan Arrhenius diperoleh konstanta kecepatan reaksi epoksidasi minyak biji nyamplung adalah 16333,93 exp. Hasil penelitian menunjukkan bahwa penambahan 1-oktanol memberikan hasil yang lebih baik dibandingkankan 1-dekanol, dengan nilai IFT sebesar 2,2 x 10-3mN/m. Kata kunci : Enhanced Oil Recovery (EOR), epoksidasi, kosurfaktan, minyak biji nyamplung , sodium lignosulfonat (SLS)

Second Generation of Biodiesel Production from Indonesian Jatropha Oil by Continuous Reactive Distillation Process Arief Budiman; Ratna D Kusumaningtyas; Sutijan Sutijan; Rochmadi Rochmadi; Suryo Purwono
ASEAN Journal of Chemical Engineering Vol 9, No 2 (2009)
Publisher : Department of Chemical Engineering, Universitas Gadjah Mada

The batch process of biodiesel production deals with problems related to the labor and separation cost since it is slow, entailing several separation steps, labor intensive, and not suitable for a very large-scale production. Therefore, a second generation process technology for biodiesel should be developed. In this work, a continuous transesterification using reactive distillation was proposed. The goal was to bring in a more efficient reactor system by combining chemical reactions and separation simultaneously in one unit. In this work, a laboratory-scale Reactive Distillation was applied for the biodiesel synthesis from the Indonesian refined jatropha oil in the presence of NaOH catalyst. The experimental investigation demonstrated the effects of the temperature, catalyst loading, and molar ratio of the reactants. The best result was achieved on the process conducted at the reaction temperature of 65 ºC with molar ratio of methanol to triglycerides of 10:1 and catalyst loading of 0.75% w/ w oil. The reaction conversion was 94.83% and methyl ester content of the product was 99.27%. The fuel characteristic of biodiesel agreed with the Indonesian national standard and ASTM specification.

Dynamic Cycling State of Nonadiabatic Catalytic Combustion of Propylene Suryo Purwono
ASEAN Journal of Chemical Engineering Vol 6, No 1 (2006)
Publisher : Department of Chemical Engineering, Universitas Gadjah Mada

An experimental study of nonadiabatic fixed-bed reactor for controlling propylene gas was made under flow reversal operation. Temperature measurements were made within the catalyst and packing beds. The influence of the operating parameters on the shape of temperature profiles, conversion, and heat removal were studied. The experiments showed that the maximum measured reactor temperature and heat removal were rather insensitive to changes in cycle duration and sensitive to feed flow rate and reactant concentration. The simulation results for the variation of concentration, flow rate, and cycle time showed the experimentally observed behavior Further simulations showed that runaway can occur when concentration was high.

CO Oxidation over Metal Oxide CatalystSupported by Indonesian Natural Zeolite Suryo Purwono
ASEAN Journal of Chemical Engineering Vol 2, No 1 (2002)
Publisher : Department of Chemical Engineering, Universitas Gadjah Mada

The objectives of this study are to attempt to develop catalysts and to find the operating conditions under which combustible waste gases concentrations in the exhaust gases can be eventually reduced to satisfy air pollution standards. The results shows that using impregnation method, nickel and vanadium metals, as active components of the catalyst, can be dispersed on the natural zeolite as catalyst support. The reaction rate measurements of catalytic oxidation of CO was done in the temperature range between 300 and 550°C using a differential micro-reactor. The catalysts used for this experiment were vanadium pentoxide and nickel oxide on activated natural zeolite. To avoid fluidization, the reactant gases were flowed downward. The results show that the reaction rate depends strongly on the bed temperature and feed concentration and is not controlled by bulk phase mass transfer and pore diffusion.

Mathematical Model for Water Flooding and HPAM Polymer Flooding in Enhanced Oil Recovery Ahmad Tawfiequrahman Yuliansyah; Bardi Murachman; Suryo Purwono
ASEAN Journal of Chemical Engineering Vol 21, No 1 (2021)
Publisher : Department of Chemical Engineering, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ajche.65531

The need for energy, especially the petroleum-based one, is steadily increasing along with population growth and technological advancement. Meanwhile, oil exploitation from oil reservoirs using primary and secondary techniques can only obtain about 30%-50 % out of the original oil in place. Enhanced Oil Recovery (EOR) is a method for increasing oil recovery from a reservoir by injecting materials that are not found in the reservoir, such as surfactant, polymer, etc. This research aims to develop a mathematical model representing two-phase flow through porous media in the EOR process. This model was extended from mass balance and fluid flow in porous media equations. The reliability of the model was then validated by water flooding and polymer flooding experiment. A porous media, constituted by a silica sand pack, was saturated with 2 % brine and sequentially flooded with HPAM polymer solution at various concentrations (5,000-15,000 ppm). The volume of the oil coming out from the media at any time intervals was measured. Validation of the model was carried out by optimizing the model parameters to obtain the best curve-fitting on the plot of the percentage of cumulative recovered oil against time. The results showed that the proposed mathematical model was reliable enough to express both water and polymer-flooding processes.

Evaluasi Sistem Penilaian Rekognisi Pembelajaran Lampau Fitri Trapsilawati; Subagyo Subagyo; Teguh Ariyanto; Muhammad Kusumawan Herliansyah; Suryo Purwono
Buletin Profesi Insinyur Vol 2, No 3 (2019): Edisi Khusus: Prosiding Seminar Nasional Keinsinyuran 2019
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/bpi.v2i3.49

Program Studi Program Profesi Insinyur Fakultas Teknik Universitas Gadjah Mada (PSPPI FT UGM) telah mengembangkan sistem konversi dan sistem penilaian untuk program Rekognisi Pembelajaran Lampau (RPL) yang mengacu pada bakuan kompetensi Persatuan Insinyur Indonesia (PII). Sistem penilaian RPL (SP RPL) ini telah diimplementasikan dalam proses penilaian RPL pada beberapa periode peserta PSPPI FT UGM. Paper ini fokus pada evaluasi hasil penilaian RPL menggunakanÂ SP RPL. Hasil menunjukkan bahwa SP RPL dengan sistem konversi yang diterapkan di PSPPI FT UGM merupakan prosedur dan sistem yang reliabel.Kata kunci : Sistem penilaian, RPL, PSPPI, Statistik

PIROLISIS LIGNIN DARI LIMBAH INDUSTRI KELAPA SAWIT UNTUK PENGEMBANGAN SURFAKTAN DALAM PROSES ENHANCE OIL RECOVERY (EOR) (Pyrolysis of Lignin From Waste of Palm Oil Industries for The Development of Surfactants for Enhance Oil Recovery (EOR)) Suryo Purwono
Jurnal Manusia dan Lingkungan Vol 8, No 3 (2001): Desember
Publisher : Pusat Studi Lingkungan Hidup Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jml.18578

ABSTRAKPirolisis dari lignin yang berasal dari limbah industri kelapa sawit dapat menghasilkan alkohol dan derivatif lainnyd yang dapat digunakan sehagai surfaktan. Prosedur penelitian proses pirolisis ini odalah sebagai berikut: I) serabut atau tandan sisa pengolahon kelapa sawit yang sudah dikeringkan dimasukkan kedalam reaktor dengan berat tertentu dan dipanaskan sampai suhu yang diinginkan, 2) produk pirolisis yang keluar dari reoktor kemudian didinginkan sampoi mencapai suhu kamor, 3) hasil cair ditampung didalam gelas ukur dan hasil gasnya ditampung di suatu botol tertentu. Suhu paling baik yang dicapai adalah 4A0 "C untuk lignin yong berasal dari serabut dan 350'C untuk lignin yang berasal dari tandan kelapa sawit. Surfaktan yang dihasilkan sekitar j4 sampai 38% dari produk pirolisis. Pada penelitian ini kecepatan reaksi dianggap order satu. Hasil penelitian menunjukkan bahwa surfakton yang dihasilkan dapat membentuk emulsi dengan minyak menta.h. Hal ini menunjukkon bahwa surfaktan yang dihasilkan dapat digunakan sebagai bahan untuk proses EOR. ABSTRACTPyrolysis of lignin from waste of palm oil industries produces alcohol and its derivatives which can be sulfonated to become surfactant. The experimental procedures for the pyrolysis process were as follows: 1) dried palm oil husks at a certain weight were put into the pyrolysis reactor and heated up to a certain temperafure; 2) the product leaving the reactor was cooled down to room temperature; and 3) the liquid product was collected in a flask while the gas product was put into a big bottle. The best temperature obtained for producing liquid product was 400 oC for lignin from palm oil fruit fibers and 350 oC for lignin from palm oil fruit stems. The surfactant developed was in the range between 34 and 38% from the pyrolysis product. In this experiment, the reaction rate was assumed to be in first order. The result showed that the surfactant obtained from the experiment could form emulsion with crude oil. This suggests that the surfactant developed can be used for EOR process.

Numerical Solution of nth Order DAEM for Kinetic Study of Lignocellulosic Biomass Pyrolysis Jonas Kristanto; Muhammad Mufti Azis; Suryo Purwono
Journal of Engineering and Technological Sciences Vol. 55 No. 3 (2023)
Publisher : Directorate for Research and Community Services, Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/j.eng.technol.sci.2023.55.3.4

The aim of the present study was to explore the most optimal configuration to numerically solve Distributed Activation Energy Models (DAEMs). DAEMs are useful in obtaining the kinetic parameters in non-isothermal kinetic studies using a thermogravimetry analyzer (TGA). Compared to other kinetic models, DAEMs provide an additional kinetic parameter that quantifies the extent of the reaction (σ) for each reaction’s mean activation energy (E ̅). Although DAEMs are efficacious in kinetic studies, solving DAEMs numerically is challenging. The DAEM equation includes double integration with respect to activation energy and temperature, which involves various numerical discretizations. Previously, many researchers utilized a DAEM to explicate complex reactions such as lignocellulosic biomass pyrolysis. However, most of them have yet to propose a numerical approach to solve DAEMs. Therefore, by exploring multiple numerical calculation configurations, here we present a general structure to numerically solve nth order and first-order DAEMs. The exploration includes determining the optimal integration limit of activation energy and the discretization of activation energy and temperature integration. From the investigation, we came up with a configuration that limits the integration of activation energy from E ̅-3σ to E ̅+3σ. Meanwhile, the number of integration points for temperature and activation energy must be 51 and 21, respectively. By using this configuration, DAEM can be utilized optimally in kinetic studies.

Tin (II) Chloride Catalyzed Esterification of High FFA Jatropha Oil: Experimental and Kinetics Study Ratna Dewi Kusumaningtyas; Prima Astuti Handayani; Rochmadi Rochmadi; Suryo Purwono; Arief Budiman
International Journal of Renewable Energy Development Vol 3, No 2 (2014): July 2014
Publisher : Center of Biomass & Renewable Energy, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijred.3.2.75-81

Biodiesel is one of the promising energy source alternatives to fossil fuel. To produce biodiesel in a more economical way, the employment of the low-cost feed stocks, such as non-edible oils with high free fatty acid (FFA), is necessary. Accordingly, the esterification reaction of FFA in vegetable oils plays an important role in the biodiesel production. In this work, esterification of FFA contained in Crude Jatropha Oil (CJO) in the presence of tin (II) chloride catalyst in a batch reactor has been carried out. The esterification reaction was conducted using methanol at the temperature of 40-60 °C for 4 hours. The effect of molar ratio of methanol to oil was studied in the range 15:1 to 120:1. The influence of catalyst loading was investigated in the range of 2.5 to 15% w/w oil. The optimum reaction conversion was obtained at 60 °C with the catalyst loading of 10% w/w oil and molar ratio of methanol to oil of 120:1. A pseudo-homogeneous reversible second order kinetic model for describing the esterification of FFA contained in CJO with methanol over tin (II) chloride catalyst was developed based on the experimental data. The kinetic model can fit the data very well.

Synthesis of Mesoporous Carbon from Merbau Sawdust as a Nickel Metal Catalyst Support for Castor Oil Hydrocracking Wega Trisunaryanti; Triyono Triyono; Suryo Purwono; Aprilia Siti Purwanti; Satriyo Dibyo Sumbogo
Bulletin of Chemical Reaction Engineering & Catalysis 2022: BCREC Volume 17 Issue 1 Year 2022 (March 2022)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.17.1.12940.216-224

Synthesis of mesoporous carbon from merbau sawdust with H2O2 as activator using reflux method followed by carbonization at 800 °C (RC800) had been carried out. This research is aiming to produce effective pathway to synthesize effective nickel-mesoporous carbon catalyst. The nickel metal was impregnated on the mesoporous carbon by wet impregnation using the salt precursor of Ni(NO3)2∙6H2O. The results showed that carbon RC800 and C800 had a specific surface area of 135.18 and 182.48 m2/g. Specific surface area of Ni/RC800 and Ni/C800 catalyst were 41.31 and 7.15 m2/g, respectively. The metal content in Ni/RC800 and Ni/C800 catalyst were 0.83 and 0.92 wt%, respectively. Ni/RC800 catalyst had the highest acidity (7.64 mmol/g) compared to Ni/C800 catalyst (6.99 mmol/g), RC800 (97.43 mmol/g), and C800 (6.17 mmol/g). The Ni/RC800 catalyst has the highest activity with the liquid product conversion of 66.01 wt%. Its selectivity towards gasoline fraction, diesel fraction, alcohol, and organic was 8.06, 1.17, 2.61, and 54.13%, respectively. Copyright © 2022 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).

Co-Authors Ady Mara, Ady Ahmad Tawfiequrahman Yuliansyah Ahmad Tawfiequrrahman Yuliansyah Ana Lestari Anak Agung Gede Sugianthara Andriani, Anisa Novi Aprilia Siti Purwanti Arief Budiman Arief Budiman Arief Budiman Ariff Trisetia Anggara Arista Putranto Atika Dwi Farini Bambang Soehendro Bardi Murachman Bardi Murachman Bardi Murachman Budiyansah, Amsal Chitra Ria Ariska dan Suwati Danang Wahyuhono Desi Amalia Fenyka Dyah Mutiarin Dyah Tri Yulianti Eka Sari, Eka Eni Budiyati Fergie Febrina Fitri Trapsilawati Fitriani Fitriani Galuh Almas Darmawati Handayani, Destias Selly Handirofa Handirofa Hanum, Farrah Fadhillah Herni Hasifah Iga Maliga Ignesti Anindia Ikhsana, Mifta Aulia Indriana Kartini Indriana Kartini Jonas Kristanto Karna Wijaya Kartini, Indriyana Mohammad Fahrurrozi Muhamad Johar Ardany Muhammad Irsan B Muhammad Khoirul Anam Muhammad Kusumawan Herliansyah Muhammad Mufti Azis Muhammad Mufti Azis Nurcahyo Iman Prakoso Panut Mulyono Pasca Giffari Jusuf Prima Astuti Handayani Ratna D Kusumaningtyas Ratna Dewi Kusumaningtyas Rika Harini Rizki Purnaini Rochmadi Rochmadi Rochmadi Rochmadi Rochmadi Rochmadi Rochmadi Rochmadi Rochmadi Rochmadi Rodiansono Rukmana Rully Septria Rully Septria, Rully Sang Kompiang Wirawan Sarto Sarto Satriyo Dibyo Sumbogo Siti Salamah Siti Salamah Siti Syamsiah Siti Syamsiah Subagyo Sudarmadji Sudarmadji Sudarmadji Sudarmadji Sudarmadji Sudarmadji Supranto Supranto Supranto Sutijan Sutijan Teguh Ariyanto Triyono Triyono Triyono Triyono Triyono Wega Trisunaryanti Wega Trisunaryanti Wega Trisunaryanti Wega Trisunaryanti Wega Trisunaryanti Wega Trisunaryati, Wega Yelmira Zalfiatri Yundari, Yundari Yusmardhany Yusuf

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