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All Journal Scientific Contribution Oil and Gas LEMBARAN PUBLIKASI MINYAK DAN GAS BUMI
Donatus Setyawan Purwo Handoko
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Chemical Engineering, Chemistry & Bioengineering Earth & Planetary Sciences Energy Engineering Environmental Science

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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
Scientific Contributions Oil and Gas Vol. 46 No. 1 (2023): SCOG
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/scog.46.1.311

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.
Converting Catalytic Palm Oil (MEPO) to Produce Biogasoline Using Zeolite Faujasite Catalyst From Fly Ash with Nickel Impregnation (Ni) Donatus Setyawan Purwo Handoko
Scientific Contributions Oil and Gas Vol. 45 No. 2 (2022): SCOG
Publisher : Testing Center for Oil and Gas LEMIGAS

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Abstract

The process hydrocracking methyl ester of palm oil into fractions biogasoline by faujasite cata-lyst of fly ash impregnated with nickel have been made. Preparation for faujasite synthesis of fly ash can bedone by removing organic compound and refluxing HCl. Synthesis do by melting the fly ash which has beenprepared with NaOH 1: 1.2 and in aging for 8 hours and in the hydrothermal autoclave for 24 hours. The char-acter faujasite using XRD and Si / Al ratio produces crystallinity main peak of 67% and Si / Al ratio of 1.65.Hydrocracking process using a variety of 4 catalyst used fly ash leaching results, faujasite, Ni-Faujasite 2%, andNi-Faujasite 4%. Test the activity and selectivity of the catalyst to produce liquid product analyzed by GC-MSwith the best catalyst was Ni-Faujasite 4% to yield 42.34% of the activity and selectivity of biogasoline frac-tion of 7.12%. The impregnation of the nickel catalyst is made by soaking in salt of nickel and then oxidationusing O2 gas and reduction using H2 gas. The impregnation of nickel will affect the character of the catalystso that the activity and selectivity of the catalyst is changed. The impregnation of nickel 4% on faujasite suc-cessfully done with nickel content of 3.71%, increasing Si / Al ratio of 2.27 and an acidity of 0.0035 mol/g.
UJI AKTIVITAS KATALIS CLAY TERMODIFIKASI CU DALAM REAKSI HIDRORENGKAH SENYAWA 1-OKTADEKANOL Wiwit Puji Lestari; Donatus Setyawan Purwo Handoko; Yudi Aris Sulistiyo
Lembaran Publikasi Minyak dan Gas Bumi Vol. 53 No. 1 (2019): LPMGB
Publisher : BBPMGB LEMIGAS

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Abstract

Telah dilakukan proses perengkahan secara katalitik senyawa 1-oktadekanol dengan katalis clay termodifikasi Cu. Hasil perengkahan dianalisis dengan menggunakan X-ray Flouresence (XRF), XRD, adsorpsi piridin dan BET. Katalis dimasukkan dan dipanaskan dalam tabung reaktor, umpan dimasukkan dan dipanaskan pada tabung terpisah sampai berubah menjadi uap sambil dialiri gas H2. Cairan hasil perengkahan selanjutnya dianalisis dengan menggunakan GC-MS. Hasil karakterisasi menunjukkan penurunan rasio Si/Al dari katalis clay menjadi clay termodifikasi Cu, sedangkan % kandungan Cu dalam katalis meningkat sebesar 7.39%. Struktur kristal kedua katalis hampir sama, namun muncul beberapa puncak baru yang menunjukkan bahwa logam Cu berhasil dimodifikasikan. Keasaman katalis muncul pada daerah 1638,6 dan 1627,03 cm-1 yang menunjukkan jenis asam bronsted. Luas permukaan dan volume pori katalis mengalami kenaikan walau sangat kecil yaitu berturut-turut 45.719 dan 0.009. Aktivitas katalis baik katalis clay dan clay termodifikasi Cu kurang baik, dimana produk yang dihasilkan >C12 lebih banyak daripada C6-C12.
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): LPMGB
Publisher : BBPMGB LEMIGAS

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Abstract

Telah dilakukan penelitian konversi plastik menjadi senyawa alkana dengan panjang rantai C6-C12menggunakan katalis Ni/zeolit dan Zn/zeolit serta reaktor sistem fi xed bed. Katalis Ni/zeolit dan Zn/zeolitdipreparasi melalui teknik perendaman dalam air, kalsinasi, oksidasi, impregnasi basah logam Ni dan Zndan 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 senyawaalkana dengan panjang rantai C6-C12 adalah 77,02 % untuk jenis katalis Zn/zeolit dan 76,87% untuk jeniskatalis Ni/zeolit.
PEMANFAATAN LIMBAH TEMBAKAU (NICOTIANA TABACUM) PASCA PANEN SEBAGAI BIODIESEL ALTERNATIF Donatus Setyawan Purwo Handoko; Nehemia Fernandes Kristianto; Wuryati Handayani
Lembaran Publikasi Minyak dan Gas Bumi Vol. 51 No. 3 (2017): LPMGB
Publisher : BBPMGB LEMIGAS

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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 70o C. Biodiesel hasil sintesis akan dikarakterisasi gugus fungsi dan sifat fi ksiknya berupa massa jenis dan viskositasnya.
Co-Authors Nehemia Fernandes Kristianto Triyono Wahid Hasyim Wiwit Puji Lestari Wuryati Handayani Yudi Aris Sulistiyo