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All Journal Reaktor Jurnal Ilmu Dasar Jurnal Kimia Riset Jurnal Multidisiplin Madani (MUDIMA) Formosa Journal of Science and Technology (FJST) Formosa Journal of Sustainable Research (FJSR) Indonesian Chimica Letters Scientific Contributions Oil and Gas LEMBARAN PUBLIKASI MINYAK DAN GAS BUMI (LPMGB)
Donatus Setyawan Purwo Handoko
Department Of Chemistry, Faculty Of Mathematics And Natural Sciences, University Of Jember (UNEJ)
Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Social Sciences

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The Cracking of 1-Octadecanol Into Short Chain Alkane and Alkene Compounds Handoko, Donatus Setyawan Purwo; Triyono
Formosa Journal of Sustainable Research Vol. 4 No. 1 (2025): January 2025
Publisher : PT FORMOSA CENDEKIA GLOBAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55927/fjsr.v4i1.13716

Abstract

Research has been carried out on the cracking mechanism of 1-octadecanol into short chain alkane and alkene compounds using a cracking technique using a Fluid Fixed Bed reactor, which is operated at temperatures between 450 oC to 500 oC for 30 minutes. The catalyst is positioned so that the feed vapor passes through a number of catalysts. The resulting product was analyzed using GC-MS. The results obtained are as follows. With the Ni/ZSiA catalyst, the catalytic hydrogenation of 1-octadecanol to 1-octadecene reached 20.21 percent, 5-octadecene reached 14.37 percent, and 9-octadecene reached 10.40 percent. The main product of catalytic hydrogenation is 1-octadecene. The results obtained at a hydrogen flow rate of 10 mL/minute and a temperature of 450 oC produce maximum alkane and alkene products < C12 (15.29%)
Sequential Catalytic Conversion of Methyl Oleate Into Short Chain Alkane and Alkene Compounds Handoko, Donatus Setyawan Purwo; Triyono
Formosa Journal of Sustainable Research Vol. 3 No. 2 (2024): February, 2024
Publisher : PT FORMOSA CENDEKIA GLOBAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55927/fjsr.v3i2.8068

Abstract

Research on the conversion of methyl oleate (Methyl 9-octadecenoate) into shorter chain alkane compounds through the stages of methyl 9-octadecenoate into 1-octadecanol, 1-octadecanol into 1-octadecene and 1-octadecene into alkane compounds and short chain alkenes with a length of C12 > have been done. The conversion process uses ZSiA and Ni/ZSiA catalysts which are placed in a fixed bed system reactor column and operated at temperatures of 400, 450 and 500 oC. ZSiA catalyst was made by washing natural zeolite with distilled water, soaking with 2 M HCl solution, adding 5% Na2SiO3 w/w, soaking with 2 M NH4Cl solution, calcining at a temperature of 500 oC while flowing nitrogen gas for two hours at a flow rate of 20 milliliters per minute; oxidation during a two-hour oxygen flow rate of 20 milliliters per minute; and impregnation of Ni metal onto the catalyst sample's surface using Ni(NO3)2 6H2O metal 2% w/w. Subsequently, reduction was done for two hours while hydrogen gas was flowing at a rate of 20 mL per minute. The resultant catalyst was subjected to various analyses, including AAS analysis for metal cation content, gravimetric analysis for acidity, NOVA 1000 surface area analyzer for specific surface area, and X-ray diffractometer (XRD, Shimadzu-6000) analysis for crystallinity
The Effect Of Acid Strength Of Bronsted Acid Site On The Ability Of The Catalyst To Break The Carbon Chain Bonds Of 1-Octadekenes Into Alkanes And Short Chain Alkenes As A Substitute For Fossil Fuels Donatus Setyawan Purwo Handoko; Triyono Triyono
Scientific Contributions Oil and Gas Vol 46 No 1 (2023)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.46.1.1311

Abstract

Research has been carried out on the strength of acids on their ability to break carbon chain bonds. The preparation of the zeolite catalyst includes soaking the zeolite in distilled water for 24 hours, followed by calcination and oxidation, then followed by reduction. Further acid treatment with 6 M HCl. Then followed by washing with H2O until neutral pH (pH = 7), then dried in an oven with a temperature of 105 oC, then after becoming a zeolite catalyst used in the cracking reaction of 1-octadekenes into alkanes and short chain alkenes.The results obtained are as follows for the type of zeolite catalyst with code Z having a very low acidity level of 3.15 mmol NH3/mgZeolite, then the zeolite has been modified by a calcination process for 24 hours given the code ZCA which shows a moderate acidity level of 5, 76 mmol NH3/mg Zeolite, then the catalyst with the code ZCAO is zeolite which has been calcified and oxidized and shows a yield of 9.54 mmol NH3/mg Zeolite. Catalytic hydrocracking of 1-octadecene with ZCAO catalyst at a variation of the hydrogen flow rate of 20 mL/minute and a temperature of 450 oC resulted in alkanes and alkenes < C12 which was 15.29% maximum, followed by a hydrogen flow rate of 10 mL/minute at temperatures of 500 and 400 oC. 
PEMANFAATAN LIMBAH TEMBAKAU (NICOTIANA TABACUM) PASCA PANEN SEBAGAI BIODIESEL ALTERNATIF (Utilization of Waste Tobaca (Nicotiana Tabacum) Post-Harvest as an Alternative Biodiesel) Donatus Setyawan Purwo Handoko; Nehemia Fernandes Kristianto; Wuryati Handayani
Lembaran publikasi minyak dan gas bumi Vol 51 No 3 (2017)
Publisher : BBPMGB LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/LPMGB.51.3.30

Abstract

Penelitian ini bertujuan untuk memanfaatka biji limbah tembakau pasca panen menjadi biodiesel. Biodiesel akan diproduksi dengan menggunakan reaksi transesterifi kasi dengan variasi suhu. Biji tembakau diesktrak untuk mendapatkan minyak nabatinya sebagai biodiesel. Kandungan asam lemak bebas (FFA) pada minyak nabati harus diminimalisir sekecil mungkin untuk mendapatkan rendemen transesterifi kasi yang tinggi. Katalis yang dipakai dalam mengkonversi minyak nabati menjadi biodiesel adalah katalis basa homogen. Biodiesel dengan rendemen tertinggi dihasilkan dari reaksi transesterifi kasi dengan suhu 70oC. Biodiesel hasil sintesis akan dikarakterisasi gugus fungsi dan sifat fi ksiknya berupa massa jenis dan viskositasnya. The aims of this research is process into biodiesel. Biodiesel is produced using transesterification reactions with variations of tempetature. Tobacco seed oil is extracted to obtain edible oils as biodiesel. The content of free fatty acid (FFA)in edible oils should be minimized to obtain a high yield of transesterification. The catalyst used in converting edible oils into biodiesel is homogeneous alkaline catalyst. Biodiesel with the higest yield from transesterification reactions with a temperature of 70oC. Biodiesel was characterized the functional group and phsycal properties including density and viscosity.
Konversi Plastik Menjadi Senyawa Alkana Rantai C6 - C12 Menggunakan Katalis Ni/Zeolit dan Zn/Zeolit Donatus Setyawan Purwo Handoko; Wahid Hasyim
Lembaran publikasi minyak dan gas bumi Vol 49 No 1 (2015)
Publisher : BBPMGB LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/LPMGB.49.1.232

Abstract

Telah dilakukan penelitian konversi plastik menjadi senyawa alkana dengan panjang rantai C6-C12 menggunakan katalis Ni/zeolit dan Zn/zeolit serta reaktor sistem fixed bed. Katalis Ni/zeolit dan Zn/zeolit dipreparasi melalui teknik perendaman dalam air, kalsinasi, oksidasi, impregnasi basah logam Ni dan Zn dan reduksi. Kalsinasi, oksidasi dan reduksi dilakukan pada suhu 500oC dengan laju alir gas (nitrogen, oksigen atau hidrogen) 20 mL/menit. Hasil yang diperoleh dari perengkahan plastik menjadi senyawa alkana dengan panjang rantai C6-C12 adalah 77,02 % untuk jenis katalis Zn/zeolit dan 76,87% untuk jenis katalis Ni/zeolit. Has done research into the conversion of plastic compounds with long- chain alkanes C6 - C12 using the catalyst Ni zeolite and Zn/zeolite and the fixed bed reactor system . Catalyst Ni/zeolite and Zn/zeolite prepared through immersion technique, calcination, oxidation, wet impregnation of Ni and Zn metal and reduction. Calcination, oxidation and reduction is carried out at a temperature of 500°C with a flow rate of gases (nitrogen, oxygen or hydrogen) 20 mL/min. The results obtained from the cracking of plastic into a compound alkanes with chain lengths C6 - C12 is 77.02% for the type of catalyst Zn/zeolite and 76.87% for the type of catalyst Ni/zeolite.
Konversi Katalitik Metil Oleat Secara Sekuensial Menjadi Senyawa Biogasoline Donatus Setyawan Purwo Handoko; Triyono Triyono; Narsito Narsito; Tutik D.W.; Morina Bangun
Lembaran publikasi minyak dan gas bumi Vol 47 No 3 (2013)
Publisher : BBPMGB LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/LPMGB.47.3.246

Abstract

Bahan bakar yang berasal dari fossil sebagai sumber energi saat ini cadangannya sudah semakin menipis, sementara permintaan bahan bakar semakin meningkat. Untuk itu perlu dicari suatu sumber energi terbarukan yang dapat menjadi energi alternatif untuk menggantikan atau mensubtitusi bahan bakar fossil, seperti dari minyak nabati. Penelitian mengenai konversi minyak sawit menjadi bahan bakar biogasoline belum banyak dilakukan sehingga peneliti melakukan penelitian terhadap peluang diperolehnya bahan bakar biogasoline dari metil oleat secara sekuensial. Konversi minyak nabati, metil oleat (metil 9-oktadekenoat) menjadi biogasoline secara sekuensial telah dilakukan melalui beberapa tahap yaitu: metil 9-oktadekenoat menjadi 1-oktadekanol, 1-oktadekanol menjadi 1-oktadekena dan 1-oktadekena menjadi senyawa alkana serta alkena rantai pendek dengan panjang C12. Proses konversi menggunakan katalis ZSiA dan Ni/ZSiA yang ditempatkan dalam kolom reaktor sistem fixed bed dan dioperasikan pada temperatur 400, 450 dan 500oC. Katalis ditempatkan dalam kolom reaktor fixed bed pada temperatur 400oC (atau 450 dan 500oC), sambil dialiri gas hidrogen dengan laju alir 0, 20, 30 dan 40 mL/menit. Umpan metil 9-oktadekenoat, 1-oktadekanol atau 1-oktadekena dipanaskan dalam evaporator, temperatur 400-500oC. Produk-produk dari proses hidrogenasi katalitik secara sequential terhadap metil 9-oktadekenoat, 1-oktadekanol dengan katalis ZSiA, berturut-turut menghasilkan produk 1-oktadekanol sebesar 87,21%, 1-oktadekena sebesar 20,21%; dan menghasilkan produk alkana dan alkena C12 sebesar 15,29% menggunakan umpan 1-oktadekena, dengan katalis Ni/ZSiA.
Co-Authors Bambang Piluharto Bangun, Morina D.W., Tutik Dwi Indarti Handayani, Wuryati Kristianto, Nehemia Fernandes Lestari, Wiwit Puji Morina Bangun Narsito Narsito Narsito Narsito Narsito Narsito Nehemia Fernandes Kristianto Novita Andarini R. Yuni Ristanti Ratno Budiyanto Tinok Dwi Ananda Triyono Triyono Triyono Triyono Triyono Triyono Triyono Triyono Triyono Triyono Triyono Tutik D.W. Tutik Dwi Wahyuningsih Wahid Hasyim Wahid Hasyim, Wahid Wuryanti Handayani Wuryati Handayani Yudi Aris Sulisitiyo