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All Journal ASEAN Journal of Systems Engineering Jurnal Rekayasa Proses Jurnal Teknoin Journal of Tropical Life Science : International Journal of Theoretical, Experimental, and Applied Life Sciences Reaktor International Journal of Renewable Energy Development Rekam : Jurnal, Fotografi, Televisi Animasi Eksergi: Chemical Engineering Journal Bulletin of Chemical Reaction Engineering & Catalysis Seminar Nasional Teknik Kimia Kejuangan PROFIT : Jurnal Administrasi Bisnis Journal of Tropical Biodiversity and Biotechnology JPSE (Journal of Physical Science and Engineering) Sinkron : Jurnal dan Penelitian Teknik Informatika JKBM (JURNAL KONSEP BISNIS DAN MANAJEMEN) Jurnal Ilmiah Universitas Batanghari Jambi Squalen Bulletin of Marine and Fisheries Postharvest and Biotechnology EKONOMIS : Journal of Economics and Business Indonesian Journal of Chemistry Communications in Science and Technology Jurnal Rekayasa Proses JURNAL EDUCATION AND DEVELOPMENT ALGORITMA : JURNAL ILMU KOMPUTER DAN INFORMATIKA Brikolase : Jurnal Kajian Teori, Praktik dan Wacana Seni Budaya Rupa Jurnal Ilmiah Penegakan Hukum Jurnal Manajemen Informasi Kesehatan Indonesia (JMIKI) Jurnal Review Pendidikan dan Pengajaran (JRPP) JENIUS (Jurnal Ilmiah Manajemen Sumber Daya Manusia) ASEAN Journal of Chemical Engineering Journal of Computer Networks, Architecture and High Performance Computing Jurnal Ilmu Administrasi dan Studi Kebijakan (JIASK) Jurnal Manajemen Pendidikan dan Ilmu Sosial (JMPIS) Indonesian Community Service and Empowerment Journal (IComSE) Journal of Industrial Engineering & Management Research (JIEMAR) Journal of Economics and Business UBS Journal of Applied Data Sciences Jurnal Teknik Kimia Indonesia Charity : Jurnal Pengabdian Masyarakat JIKEM: Jurnal Ilmu Komputer, Ekonomi dan Manajemen Jurnal Ilmu Komputer dan Sistem Komputer Terapan (JIKSTRA) Indonesian Journal of Innovation Studies Abimanyu: Journal of Community Engagement Prosiding Snastikom Jurnal Keperawatan INDOGENIUS SENTRI: Jurnal Riset Ilmiah Blend Sains Jurnal Teknik Prioritas : Jurnal Pengabdian Kepada Masyarakat Co-Creation : Jurnal Ilmiah Ekonomi Manajemen Akuntansi dan Bisnis Jurnal Sosial dan Sains eProceedings of Art & Design International Journal of Multidisciplinary Sciences and Arts Journal of Artificial Intelligence and Digital Business Applied Engineering and Technology Ranah Research : Journal of Multidisciplinary Research and Development Journal Global Technology Computer Buletin Utama Teknik Kriez Academy International Journal of Renewable Energy Development Jurnal Ilmu Komputer dan Sistem Informasi Jurnal Pengabdian Masyarakat Jurnal Agroteknologi Merdeka Pasuruan Bulletin of Chemical Reaction Engineering & Catalysis Journal of Fisheries & Marine Jurnal Audit, Pajak, Akuntansi Publik Jurnal Rekayasa Proses SYAHADAT: Journal of Islamic Studies Mekongga: Jurnal Pengabdian Masyarakat INOVASI: Jurnal Ekonomi, Keuangan, dan Manajemen POTENSI: Jurnal Pengabdian Masyarakat Ekonomi dan Bisnis Journal of Computer Science Artificial Intelligence and Communications TECHNOLOGIC Jurnal Ilmu Komputer dan Teknik Informatika Jurnal Bahasa Rupa Jurnal Pengabdian Masyarakat Berdampak

Arief Budiman

Chemical Engineering Department Universitas Gadjah Mada

Author-ID : 244286

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Kinetika Reaksi Isomerisasi α-pinene Retno Ringgani; Budhijanto Budhijanto; Arief Budiman
Eksergi Vol 13, No 1 (2016)
Publisher : Prodi Teknik Kimia, Fakultas Teknologi Industri, UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/e.v13i1.1434

Terpentin merupakan hasil hutan non kayu yang berasal dari pohon pinus. Terpentin diperoleh dari hasil produk non kayu berupa getah pinus dengan kandungan tertinggi berupa α-pinene dengan cara didistilasi dan menghasilkan produk atas berupa terpentin dan produk bawah berupa gondorukem. Terpentin yang dipakai pada penelitian ini memiliki komposisi α-pinen 80,03 %, camphen 1,95%, β-pinen 2,78 %, ∆-caren 11,91% dan limonen 1,99%. Reaksi isomerisasi α-pinen merupakan reaksi paralel yang menghasilkan beberapa produk isomer, yaitu camphen, limonen,α-terpinen, γ-terpinen, dan terpinolen. Produk hasil isomerisasi α-pinen merupakan produk intermediate yang digunakan dalam industri farmasi, chemical fragrance, anti bakteri dan industri parfum. Pada penelitian ini, dipelajari reaksi isomerisasi α-pinen menggunakan katalis resin amberlyst 36. Reaksi isomerisasi α-pinen dilakukan pada reaktor batch berpengaduk dengan variasi suhu 70 - 1000C. Kinetika reaksi isomerisasi α-pinen dari terpentin didekati dengan reaksi order satu irreversible. Model kinetika yang diusulkan menunjukkan kesesuaian dengan hasil eksperimen baik. Dari hasil perhitungan diperoleh parameter faktor tumbukan (A) dan Energi Aktivasi (E) untuk masing-masing camphene, limonene, α-terpinene, γ-terpinene, terpinolene yaitu 0,825x105 dm.s-1; 0,0061x105 dm.s-1;0,0645x105 dm.s-1;0,0595x105 dm.s-1; 0,0645x105 dm.s-1 dan 27,93 kJ/mol; 19,67 kJ/mol; 18,53 kJ/mol; 19,25 kJ/mol; 4,28 kJ/mol.

Pre-treatment Process of Biodiesel Production From Waste Cooking Oil Putri Restu Dewati; Achmad Halim Purbohandono; Arief Budiman
Eksergi Vol 11, No 1
Publisher : Prodi Teknik Kimia, Fakultas Teknologi Industri, UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/e.v11i1.318

Methyl ester of fatty acids known as biodiesel, synthesized from vegetable oils or animal fats, is a promising alternative fuel due to the limited resource of fossil fuel and the environment concern. There are large amount of low cost oil such as waste cooking oil that could be converted to biodiesel. However there is problem related to process of this low cost oil since they often contain large amounts of free fatty acid (FFA) that cannot be converted to biodiesel using alkalin ecatalyst. In this paper, a technique for reducing the FFA as pre-treatment in biodiesel production from waste cooking oil is studied. This pre-treatment step is aimed to esterify the FFA before trans-esterifying process of triglycerides with an alkaline-catalyst to complete the reaction. The main parameters of this process such as temperature, the molar ratio of methanol to acid catalyst, and catalyst loading were investigated to determine the optimum condition for converting of the FFA to usable esters. The result shows that the best condition for reducing of FFA was obtained at 65o C, with a molar ratio of oil to methanol of 1:6, and catalyst loading of 2 wt% H2SO4 .

Kinetika Reaksi Pirolisis Enceng Gondok Mitha Puspitasari; Sutijan Sutijan; Arief Budiman
Eksergi Vol 13, No 1 (2016)
Publisher : Prodi Teknik Kimia, Fakultas Teknologi Industri, UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/e.v13i1.1436

Enceng gondok merupakan tanaman pengganggu dalam ekosistem air karena pertumbuhannya yang sangat cepat sehingga perlu dipikirkan cara untuk pemusnahan tanaman ini. Namun enceng gondok merupakan biomassa yang mempunyai kandungan hemiselulosa, selulosa dan lignin yang tinggi. Pirolisis adalah metode yang tepat untuk mengubah biomassa yang diproses secara termal menjadi produk yang bernilai. Pirolisis merupakan proses degradasi termal untuk mengahasilkan bio-char, bio-oil dan bio-gas tanpa adanya oksigen. Tujuan penelitian ini adalah untuk mencari suhu optimum dari proses pirolisis dan mencari parameter kinetika untuk membantu peneliti dalam merancang reaktor dan memahami reaksi yang terjadi. Model yang diusulkan untuk mempresentasikan reaksi pirolisis enceng gondok adalah Compatting model. Hasil dari penelitian ini menunjukkan bahwa suhu 600°C merupakan suhu optimum untuk mengahasilkan bio-oil. Dengan menggunakan program matlab konstanta kinetika reaksi pada pembentukan gas pada proses pirolisis enceng gondok adalah k1=3,4997exp-14069,21/RTmen-1, konstanta kinetika reaksi pembentukan bio-oil adalah k2=0,3430exp-3059,451/RTmen-1 dan konstanta kinetika reaksi pembentukan char adalah k3=0,2526 exp-2313,395/RT men-1.

Pretreatment Spirulina platensis Residue untuk Produksi Bioetanol Heni Anggorowati; Indriana Lestari; Arief Budiman; Yano Surya Pradana
Eksergi Vol 18, No 1 (2021)
Publisher : Prodi Teknik Kimia, Fakultas Teknologi Industri, UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/e.v0i0.4551

Pemerintah Indonesia berusaha untuk menggurangi penggunaan bahan bakar fosil dengan mendorong adanya transisi ke sumber energi terbarukan. Bioetanol merupakan salah satu alternatif energi terbarukan yang mampu mengurangi penggunaan bensin di sektor transportasi. Bioetanol dapat diproduksi dari spirulina platensis residu (SPR) yang masih mengandung karbohidrat yang tinggi. Untuk memaksimalkan perolehan bioethanol diperlukan proses pretreatment yang sesuai untuk memecah dinding sel SPR sehingga diperoleh glukosa yang siap difermentasi. Pada penelitian ini dilakukan tiga metode pretreatment yaitu ultrasonikasi, autoclave dan enzimatis. Pretreatment dengan ultrasonikasi dilakukan dengan ultasonicator batch 40 kHz selama 30 menit dan menghasilkan glukosa sebesar 147,1154 mg/L. Sedangkan dengan autoclave pada suhu 121 oC selama 30 menit menghasilkan glukosa sebesar 21.15385 mg/L. Pretreatmen enzimatis dilakukan dengan menggunakan kombinasi enzim α-amylase dan amyloglucosidase (1:0; 0,75: 0,25; 0,5:0,5; 0,25:0,75 dan 0:1) pada suhu 40 oC selama 180 menit. Yield glukosa maksimum diperoleh pada pengguanaan enzim α-amylase: amyloglucosidase = 0,25:0,75 yaitu sebesar 33,15%.

Penurunan Konsumsi Steam Di PG Modjo-Sragen dengan Konsep Heat- Process Integration Menggunakan Energy Utilization Diagram Arief Budiman
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2015: Prosiding SNTKK 2015
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Sugar factories can meet its own energy consumption, without using other fuels except bagasse, if consumption Steam on Cane (SOC) can reach 40-50% by weight of cane. Sugar factory can do cogeneration and generate electricity which can be sold to the grid if the consumption steam on cane reached a maximum of 40% by weight of sugar cane.This study aims to reduce the consumption of SOC in the process house using innovation of process configuration. EUD (Energy Utilization Diagram) is a thermodynamic analysis based on the concept exergy. EUD is used to evaluate the configuration process in order to obtain a better configuration of the existing configuration. The study obtained a configuration process with SOC <40%. Evaporation system used a quintuple effect. Vapor # 4 is used for energy donor heater # 1, Vapor # 3 used donor of energy to the heater # 2 and vacuum pan. Vapor # 1 is used for energy donor heater # 3. Exhaust steam pressure of 0.8-1 kg / cm2 is only used in the evaporator # 1.

WIND FARM LOCATION SELECTION AT THE SOUTHERN COAST OF YOGYAKARTA PROVINCE FOR ENERGY SUPPLY OF HYDROGEN FUEL PRODUCTION Irwan Setyaji; Arief Budiman; Wahyu Wilopo; Ridwan Budi Prasetyo
ASEAN Journal of Systems Engineering Vol 4, No 2 (2020): ASEAN Journal of Systems Engineering
Publisher : Master in Systems Engineering

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The depletion of non-renewable energy reserves and increased awareness of environmental damage caused by fossil-based fuel use have encouraged the world’s efforts to develop and utilize new and renewable energy sources, including in Indonesia, especially in the special region of Yogyakarta. The potential for wind power plants can be developed in 3 districts in the southern part of Yogyakarta, bordering the Java Sea, to be converted into hydrogen through an electrolysis process. The three research locations were Bugel Beach in Kulon Progo, Pandansimo Baru Beach in Bantul, and Baron Techno Park at Baron Beach in Gunung Kidul. The selection of the most optimum location was made employing the Analytic Hierarchy Process (AHP) method by considering three factors, namely technical, location, and socio-economic factors. The first factor includes the potential for electricity generation from wind power and the available land area. The second one consists of sub-factors, namely access to the location and the distance to the PLN electricity distribution line. Then the last one includes conflicts with tourism and the economic activities of the surrounding community. After obtaining the most suitable location, planning is carried out for the wind farm that is built, the amount of electrical energy produced, the cost of generating electricity, and the cost of producing hydrogen from the electrolysis process. Pandansimo Baru Beach is an ideal location, with an average wind speed of 4.833 m/s. Five Vestas V80 2000/80 wind turbines were selected according to the available land. The annual electrical energy that can be produced from this system is 161,677,216 kWh/year with a generation cost of 0.118 USD/kWh and is capable of producing 230,960 kgH2 of hydrogen at 4.35 USD/kg.

POTENTIAL STUDY OF PHOTOVOLTAIC POWER STATIONS TO MEET ENERGY NEEDS OF FUEL CELL UNITS IN BARU PANDANSIMO BARU BEACH OF BANTUL, YOGYAKARTA Ely Afridiana Kuncoro; Arief Budiman; Joko Waluyo
ASEAN Journal of Systems Engineering Vol 5, No 2 (2021): ASEAN Journal of Systems Engineering
Publisher : Master in Systems Engineering

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Energy needs are increasing rapidly along with population growth, increasing population activity, and massive development in technology. However, a current energy source is mainly from fossil energy. This condition is inversely proportional to fossil energy stock, decreasing year by year as a natural condition of non-renewable energy. On the other hand, fossil energy damages the environment by its pollution, such as deforestation and air and atmospheric pollution in the form of greenhouse gas emissions. For this reason, the world needs another source of energy that could replace fossil energy as a source and is also environmentally friendly. New and renewable energy could be the solution.Indonesia has plenty amount of new and renewable energy potential. However, renewable energy is weather-dependent, thus requiring storage technology to store the energy. The current common storage technology is battery technology. This technology has some weaknesses: limited capacity, high cost, less flexibility, expensive, and short lifetime. Another storage technology with high flexibility, easy transport, high amount capacity, long lifetime, and wide usage is needed. Hydrogen storage appears to meet all these requirements.This study aimed to calculate the optimum potential of photovoltaic power stations at Baru Pandansimo Beach of Bantul, Yogyakarta, as an energy source to produce hydrogen as a storage energy system. The simulations are done using HOMER software were carried out in three photovoltaic power station scenarios: fixed-tilt, single-axis tracker, and dual-axis tracker, and showed that the fixed-tilt photovoltaic power station scenario is the most optimal design and architecture. With total capacity reaching 7.8 MWp potential to be built at Baru Pandansimo, it could generate 11,657,704 KWh/year electrical energy with an NPC value of USD 8.29 M, and a COE of 0.0420 USD/KWh. This electrical energy could produce 213,288.06 kilograms of H2 at a 2.3 USD/kg production cost.

Pemodelan dan Simulasi Kinetika Reaksi Alkoholisis Minyak Jarak Pagar (Jatropha Curcas) dengan Katalisator Zirkonia Tersulfatasi Heri Rustamaji; Hary Sulistyo; Arief Budiman
Jurnal Rekayasa Proses Vol 4, No 1 (2010)
Publisher : Departemen Teknik Kimia Fakultas Teknik Universitas Gadjah Mada

Biodiesel berhasil diproduksi dengan alkoholisis minyak jarak menggunakan katalisator zirkonia tersulfatasi. Proses alkoholisis dilakukan dalam suatu reaktor batch yang dilengkapi dengan pemanas, termokopel, pengaduk, termostat, dan pengambil sampel. Reaktor batch diisi dengan minyak jarak pagar, metanol dan katalisator. Reaksi selanjutnya dilakukan selama 120 menit dan sampel diambil setiap 15 menit. Model kinetika reaksi kimia disusun dan diselesaikan dengan MATLAB. Nilai faktor frekuensi tumbukan untuk reaksi tiga tahap adalah 5,13 x 103; 5,682 x 103, dan 2,534 x 103 (cm3/mgek) (cm3/g.kat/min). Sementara itu, nilai energi aktivasi reaksi berturut-turut adalah 4.176; 4.309,809 dan 6.018,623 kal/mol. Hasil simulasi menunjukkan bahwa tahap pengurangan trigliserida menjadi digliserida adalah tahap paling cepat dan tahap pengurangan monogliserida menjadi gliserol adalah tahap paling lambat.Kata kunci: minyak jarak pagar, alkoholisis, model kinetika reaksi, katalisator asam padatJatropha oil is a very potential source of biodiesel fuel that can be processed through alcoholysis. In the present work, a study on alcoholysis of Jatropha oil with the use of solid acid catalyst was conducted in a wellmixed batch reactor. The study involved varying reaction temperatures of 100°C to 140°C, ethanol-oil molar ratio of 9, agitation speed of 1000 rpm and catalyst loading of 3% with respect to the oil. The reaction was carried out for 120 minutes; meanwhile samples were taken from the reactor every 15 minutes for glycerol analysis. In order to predict kinetics parameter of the alcoholysis reaction, a mathematical model of consecutive reactions was developed. The Matlab software was used to solve the simultaneous differential equations. Over the range of variables used in the experiment, the mathematical model was able to fit the experimental data quite well. The calculation results showed that the values of collision frequency factor for the consecutive reactions are 5.13 x 103; 5.682 x 103, and 2.534 x 103 (cm3/mgek) (cm3/g.cat/min). Meanwhile, the activation energies for the consecutive reaction are 4,176; 4,310 and 6,019 cal/mol. Keywords: jatropha curcas, methanolysis, kinetics modeling, solid acid catalyst

Kinetika Reaksi Alkyd Resin Termodifikasi Minyak Jagung dengan Asam Phtalat Anhidrat Heri Heriyanto; Rochmadi Rochmadi; Arief Budiman
Jurnal Rekayasa Proses Vol 5, No 1 (2011)
Publisher : Departemen Teknik Kimia Fakultas Teknik Universitas Gadjah Mada

Reaksi esterifikasi anhidrida phtalat dengan monogliserida merupakan reaksi kondensasi membentuk polimer dengan rantai linier. Penelitian ini bertujuan untuk mempelajari kinetika reaksi alkid resin termodifikasi minyak jagung tanpa menggunakan katalis. Proses penelitian ada dua tahap yaitu tahap pertama reaksi alkoholisis dan tahap kedua reaksi esterifikasi. Tahap alkoholisis diawali dengan mereaksikan minyak jagung dan gliserol dengan perbandingan molar 1:2 pada suhu 250°C. Sampel diambil pada selang waktu 30 menit selama 3 jam untuk dianalisis kadar gliserol bebasnya dengan metode iodometri (FBI-AO2-03). Tahap esterifikasi adalah mencampurkan anhidrida phtalat ke dalam reaktor batch dengan perbandingan molar gliserol : anhidrida phtalat 3:2. Sampel dianalisis kadar gugus OH- dengan metode asetat anhidrida. Peubah-ubah yang dipelajari meliputi variasi suhu dari 230°C – 260°C dan variasi perbandingan ekivalen OH/COOH dari 1 – 1,25. Berdasarkan hasil penelitian diambil kesimpulan bahwa minyak jagung dan gliserol dapat dialkoholisis tanpa menggunakan katalis pada kisaran suhu 230°C – 260°C. Pengaruh suhu terhadap konstanta kecepatan reaksi dinyatakan dengan persamaan Arrhenius adalah sebagai berikut : k1=1,4647×104 exp (-8237,7/T) (g/mgek.men) k4=2,1398×109 exp (-14142/T) (g/mgek.men) Kata kunci: alkoholisis, esterifikasi, minyak jagung, gliserol, anhidrida phtalat Esterification of phthalic anhydrate with monoglyceride is a condensation reaction to form a linear chain polymer. The present work aimed at investigating reaction kinetics of alkyd resin modified with corn oil in the absence of catalyst. The work consisted of two steps i.e. alcoholysis and esterification. In the alcoholysis step, corn oil and glycerol were brought into reaction with a molar ratio of 1:2 at 250°C. Every 30 minutes during 3 hour reaction, reaction products were sampled to analyse the remaining free glycerol by iodometry method (FBI-AO2-03). In the esterification step, phthalic anhydrate was put in the batch reactor with a glycerol-phthalic anhydrate molar of 3:2. Samples were taken and the hydroxyl ions were analysed by acetate anhydrate method. The variables investigated in the present work were reaction temperatures varied from 230°C to 260°C and equivalent OH/COOH ratio from 1 to 1.25. Experimental results showed that alcoholysis of corn oil and glycerol could be carried out in a temperature range of 230°C to 260°C without the presence of catalyst. The effect of temperature on the reaction rate constant of monoglyceride and phthalic ester formation could be respectively written in the Arrhenius correlations as follows: k1 = 1.4647.104 exp (-8237.7/T) g/mgeq.min k4 = 2.1398.109 exp (-14142/T) g/mgeq.min Keywords: alcoholysis, esterification, corn oil, glycerol, phthalic anhydrate

Kinetika Reaksi Esterifikasi Palm Fatty Acid Distilate (PFAD) menjadi Biodiesel dengan Katalis Zeolit-Zirkonia Tersulfatasi Masduki; Sutijan; Arief Budiman
Jurnal Rekayasa Proses Vol 7, No 2 (2013)
Publisher : Departemen Teknik Kimia Fakultas Teknik Universitas Gadjah Mada

Krisis energi karena menipisnya cadangan minyak bumi mendorong manusia untuk berinovasi menciptakan sumber energi alternatif. Salah satu sumber energi alternatif yang potensial untuk dikembangkan adalah biodiesel. Produksi biodiesel skala besar terkendala oleh harga bahan baku yang mahal dan cenderung bersaing dengan kebutuhan pangan. Oleh karena itu perlu dicari bahan baku yang lebih murah dan tidak bersaing dengan kebutuhan pangan. Salah satu bahan yang dapat memenuhi kepentingan tersebut adalah Palm Fatty Acid Distilate (PFAD). Penelitian ini bertujuan untuk mempelajari kinetika reaksi esterifikasi PFAD menjadi biodiesel dengan katalis zeolit zirkonia tersulfatasi. Palm fatty acid distillate (PFAD) sebagai sumber asam lemak diesterifikasi menjadi biodiesel di dalam labu leher tiga yang dilengkapi dengan pemanas, pengaduk dan sistem refluks. Untuk memperoleh data kinetika, sampel diambil pada interval waktu 10 menit untuk dianalisis konversi asam lemaknya. Model kinetika reaksi esterifikasi PFAD menjadi biodiesel didekati dengan reaksi pseudo-homogen orde satu dan reaksi heterogen katalitik. Hasil penelitian menunjukkan bahwa kedua model kinetika yang diusulkan cukup sesuai dengan data percobaan. Hasil perhitungan model reaksi pseudo-homogen menghasilkan energi aktivasi sebesar 11,60 kJ/mol dan faktor pre-eksponensial sebesar 5,82.1016 s-1. Sedangkan untuk model reaksi heterogen katalitik diperoleh energi aktivasi sebesar 950,46 kJ/mol dan faktor pre-eksponensial sebesar 4,11 x 1010 dm6.gkat-1.mol-1.s-1. Konversi reaksi maksimum sebesar 75,68% diperoleh pada waktu reaksi 80 menit, suhu reaksi 65°C dengan konsentrasi katalis 3% dan perbandingan mol PFAD:metanol = 1:10. Kata kunci: biodiesel, kinetika, esterifikasi, palm fatty acid distillate, zeolit zirkonia tersulfatasi. Energy crisis due to depletion of crude oil resources has been a motivation for alternative energy search. Biodiesel becomes a potential among other alternative energy sources. However, large scale biodiesel production is hampered by the raw materials which become expensive and tent to compete with the source of food needs. Therefore, a search for an alternative inexpensive raw material is necessary. Palm fatty acid distilate (PFAD) is one of alternative raw materials can be utilized. The present work objective was to investigate reaction kinetics of PFAD esterification for biodiesel with zirconium sulphated zeolite as catalyst. PFAD as a source of fatty acid underwent esterification to produce biodiesel in a three necked flask equiped with heater, stirrer and reflux condensor. In order to study the reaction kinetics, samples were collected consecutively every 10 minutes and the conversion of the fatty acid in each sample was determined. Here, two esterification reaction models were proposed i.e. pseudo-homogeneous first order reaction model and heterogeneous catalytic reaction model. The results showed that calculated conversion for both proposed models were in a good agreement with the experimental data. The pseudo homogeneous reaction model has an activation energy of 11.60 kJ/mole and a pre-exponential factor of 5.821016 s1. Whereas, the heterogeneous reaction model has an activation energy of 950.46 kJ/mole and pre-exponential factor of 4.111010 dm6.g cat1.mol1.s1. The maximum conversion of 75.68% was obtained at 80 minute reaction time, at 65C with the use of 3% catalyst and a PFAD:methanol molar ratio of 1:10. Keywords: biodiesel, kinetics, esterification, palm fatty acid distillate, zirconium sulphated zeolite.

Co-Authors . Widayat Abdul Ghofur Abdul Rohman Achmad Halim Purbohandono Achmad Rizky Fazar Achmad Roesyadi Adidtya Perdana, Adidtya Afkarina, Izzeh Aflah, Arief agung setiawan Agus Aktawan, Agus Agus Suyono, Eko Ahda Hafidz, Anggaditya Ahmad Agus Setiawan Ahmad Tawfiequrrahman Yuliansyah Aini, Apsari Puspita Akly, Faisal Akmal, M. Alfarisi, Muhammad Alisharsa, Muhammad Dafa Alita Lelyana Alwiyah Alwiyah Amelia, Ria Anastasia Ary Noviyanti Andhika Puspito Nugroho Andini Putri, Egydia Ardy Aprilian Anwar Ari Usman, Ari Arif Yulianto Widi Kurniawan Arifin, A. Zainul Arum Wulandari, Hesti Ashari, Maajid Surya Putra Astiti, Adam Avido Yuliestyan Aydogmus, Ilkay Baehaqi Boy Arief Fachri Budhijanto Budhijanto Budhijanto Budhijanto Budhijanto Budhijanto Budhijanto Budhijanto Budhijanto Budhijanto, Budhijanto Budi Budi Budi BUDI SETIADI DARYONO Burhanto, Burhanto Cahyono, Rochim Bakti Chafid Fandeli Cindiati, Maya Damaiyanti, Mukhripah Damayanti, Fera Daniar Rianawati David David Dedi Irwan Defiani Putri Denanti Demmanggasa, Yultan Dewayanto , Nugroho Dewi, RD. D. Lokita Pramesti Dewi, Rike Tri Kumala Diana Diana Diananto Prihandoko Diansyah, T.M Diena Yudiarti Dwi Pratiwi Edy Yulianto Eko Agus Suyono Eko Agus Suyono Ely Afridiana Kuncoro Eni Budiyati Erfianti, Tia Erna Ferrinadewi Febrian, Wenny Desty Fitri Annisah lubis, Yessi Fitri Natalia Fitri, Linda Dwi Novial Galang Fitrianto, Wisesa Ghifari, Muhmmad Nurshandy Al Gusti, Alexander Kenzy Pinaring H Hadiyanto H.M. Edwar Juliartha Handayani, Fitriyani Yetti Handayani, Septy Handoko, Divi Harahap, Herlina Hary Sulistyo Heri Heriyanto Heri Rustamaji Herti Utami Husaini, M. Hutasuhut, Muhammad Rizki Hamdani Ilham Mufandi Ilham Mufandi Imas Komariah, Imas Imran Lubis Indriana Lestari Irgie, Rafi Irwan Setyaji ISKANDAR Istiqomah, Aisa Fadhilatul Jarman Arroisi Joko Waluyo Karilanata, Khalid Erlangga Khalidy, Furqan Kinanti, Isnatul Agil Kurnianto, Dedy Kurniawan, Aries Taufiq Kurniawan, Yulius Kusmeri, Kusmeri Kustiawan, Unggul Kusuma, Melvin Aryadika Lakilaki, Eogenie Laksana, Rio Dhani Lestari, Dwi Indah Lestari, Yuyun Dwi Lucia Tri Suwanti, Lucia Tri M Iqbal Maulana Ginting Maggandari, Revata Mahfuddin, Rohmat Makalew, Paulina Vega Mardiah Mardiah Mardyansah, Deviko Margaretha Praba Aulia Maria Theresia Sri Budiastuti Martomo Setyawan Marwa, Annisa Masduki Maswani Maswani, Maswani Mien Rukmini, Mien Minny Elisa Yanggah Mitha Puspitasari Mochammad Donny Koerniawan Muhammad Mufti Azis Muhammad Rivai Muhammad Saifi Muhammad Yudhi Rezaldi, Muhammad Yudhi Muis Murtadho Munadi, Yudhi Muzakar Isa Nabila Fauzi Nadza, Reza Nainggolan, Theodora MV Natalia, Fitri Naufalina, Fariha E Norjannah, Norjannah Nugroho Dewayanto, Nugroho Nur Wulan, Nur Nurafifah, Istini Nuril Huda Nurtiar, Haryo Oktafia, Linda Ortiz, Edixon Daniel Pandjaitan, Manahan Budiarto Panut Mulyono Pauzi, Riky Pereira, Julio Prabang Setyono Pradana, Yano Surya Prakasa, Razaan Mauli Al-Farizi Prasakti, Laras Prasetyo, Ridwan Budi Prima Astuti Handayani Putri Restu Dewati Putri, Renata Adaranyssa Egistha Qonita Maghfiroh, Khusnul R Rochmadi Rachmat Aulia, Rachmat Rachmawan Budiarto Ratna Dewi Kusumaningtyas Rediono, Erwin Regita, Nira C. Ridwan Budi Prasetyo Ringgani, Retno Riski, Sari Kurnia Rochmadi Rochmadi Rochmadi Rochmadi Rochmadi Rochmadi Rochmadi Rochmadi Rochmadi Rochmadi Rochmadi Rochmadi Rochmadi Rochmadi Rochmadi Rochmadi Rojuaniah Rojuaniah Roto Roto Rozy, Ahmad Rusmiati, Elis Ryan Sadewo, Brilian S Sutijan Sadewo , Brilian Ryan Sarudin Sarudin, Sarudin Septiyaningsih Septiyaningsih Setianto, Diki Putra Setiantoro, Arief Eko Sholeh, Aminuddin Sihotang, Ferryanto Simanungkalit, Muhammad Iqbal Arghribi Sinaga, Jepriando Siregar, Muhammad Ramulia Siregar, Yosua Arihta R. Sada Siti Ferniah, Rejeki Siti Jamilatun Siti Jamilatun Siti Khadijah siti mudrikah Siti Soekiswati Siti Sundari Sitompul, Siti Cholijah Solly Aryza Sri Dwi Astuti Al Noor Sucahyati, Diarany Sugeng, Joko Suhendra Suhendra Suhendra Suhendra Sulistyawati Sulistyawati Sumitro Sumitro Suriati, Suriati Suryo Purwono Susanto, Try Sutijan Sutijan Sutijan Sutijan Sutijan Suyono, Dr. Eko Agus Syahputra, Tengku Tantri Yanuar Rahmat Syah Tarigan, Duncan Dancin Tiara Radinska Deanda Tommy Munaf Tommy, Tommy Topani, Ilham Tri Wahyu Setyaningrum, Tri Wahyu Ulfah Juniarti Siregar Ummul Khair Usman, Arie Utami, Dewi Ayu Anggraeni Vendy, Vicky Verawati, Linda Wahyu Wilopo Wahyudi Budi Sediawan Widodo, Condro widyastuti, ira Wijaya, R. Muh Syah Arief Atmaja Wiyono, Edi Wusana Agung Wibowo, Wusana Agung Yessi Fitri Annisah Lubis Yosa Fiandra Yulius Hari Yunita Sari Yuslainiwati, Yuslainiwati

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