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All Journal VALENSI Reaktor Bulletin of Chemical Reaction Engineering & Catalysis Journal Of Chemical Process Engineering (JCPE) TEKNOLOGI PANGAN : Media Informasi dan Komunikasi Ilmiah Teknologi Pertanian Jurnal Abdi Insani ILTEK : Jurnal Teknologi Jurnal Teknik Industri Terintegrasi (JUTIN) Journal of Scientech Research and Development Majalah Teknik Industri ILTEK : Jurnal Teknologi Bulletin of Chemical Reaction Engineering & Catalysis Journal Of Chemical Process Engineering Journal of Green Chemical and Environmental Engineering KATALIS : Jurnal Inovasi Pengabdian Masyarakat

Rismawati Rasyid

Jurusan Teknik Kimia, Fakultas Teknologi Industri, Universtas Muslim Indonesia

Author-ID : 358186

Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology 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 Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Social Sciences

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Pengaruh Zat Aditif Urea terhadap Kuantitas Biodiesel Pada Reaksi Transesterfikasi Rismawati Rasyid; Ummu Kalsum; Rahmaniah Malik; Dadi Priyono; Azis Albar
Jurnal Kimia Valensi Jurnal Valensi Volume 4, No.1, Mei 2014
Publisher : Syarif Hidayatullah State Islamic University

Abstrak Asam lemak jenuh maupun tak jenuh pada minyak nabati memiliki potensi untuk diubah menjadi bahan kimia penyusun bahan bakar . Komponen asam lemak pada CPO RBD dengan komposisi terbesar adalah asam palmitat (38.2%) dan asam oleat (45.89%). Pembuatan biodiesel dalam penelitian ini menggunakan CPO (Crude Palm Oil) yang telah dimurnikan melalui reaksi transesterfikasi dengan pereaksi etanol dan katalisator KOH. Penambahan urea sebagai zat aditif pada reaksi dapat meningkatkan kualitas biodiesel yang diperoleh serta lebih efisien dalam tahapan pemurnian. Persentase kadar FAME (Fatty Acid Metyl Ester) setara dengan persen yield biodiesel pada proses reaksi tanpa penambahan urea adalah 90.34% dan mengalami peningkatan setelah penambahan urea sebesar 98%. Densitas yang dihasilkan pada reaksi tanpa zat aditif 0.868 gr/ ml dan reaksi dengan penambahan zat aditif memiliki densitas 0.866 gr/ml, kedua produk tersebut telah sesuai dengan standar SNI yakni berkisar 0.85–0.89. Kata kunci : biodiesel, CPO, zat aditif Abstract Saturated and unsaturated fatty acids in vegetable oils have potential to be converted into constituent of chemicals fuel. Fatty acids in the RBD palm oil with the largest composition are palmitic acid (38.2%) and oleic acid (45.89%). Production of fuel which substitute diesel fuel (biodiesel) from CPO (Crude Palm Oil) which has been purified by transesterification reaction with ethanol reagent and KOH catalyst. The addition of urea as an additive substancein the reaction to improve the quality as well as more efficient biodiesel obtained in the purification stages. Percentage value of FAME(Fatty Acid Metyl Ester)or yield biodiesel in the reaction without the addition of urea is 90.34% and after the addition of urea increased by 98%. Density of product that produced in the reaction without additives is 0.868 g / ml and for reaction with additives has a density of 0.866 g / ml, both of these products are met the criteria of SNI standards which ranged from 0.85 to 0.89. Keywords : Biodiesel, CPO, additive substance

Pengaruh Suhu dan Konsentrasi Katalis Pada Proses Esterifikasi Distilat Asam Lemak Minyak Sawit (DALMs) Menjadi Biodiesel Rismawati Rasyid
Jurnal Kimia Valensi Jurnal Valensi Volume 1, No.6, Mei 2010
Publisher : Syarif Hidayatullah State Islamic University

Pembuatan biodiesel dari minyak kelapa sawit sudah populer dibanding distilat asam lemak minyaksawit (DALMs). Minyak kelapa sawit mentah atau Crude Palm Oil (CPO) dalam prosespemurniannya menjadi minyak goring, menghasilkan produk samping berupa Distilat asam lemakminyak sawit (DALMs) dari proses distilasi. Proses esterifikasi DALMs menghasilkan senyawaester atau biodiesel menggunakan pereaksi metanol dengan katalisator asam klorida (HCl). Reaksidijalankan pada reaktor batch pada tekanan diatas satu atmosfer dengan variasi suhu dan konsentrasikatalis. Proses dijalankan dengan putaran pengaduk 600 rpm , perbandingan ekivalen metanol denganDALMs 1,4 kali stokiometri merupakan variabel tetap pada tekanan 6,5 atm. Didapatkan bahwahubungan konstanta kecepatan reaksi dengan suhu menghasilkan k = 28921 Exp (-5241/T) dan variasikonsentrasi katalis dengan k = 0,0039 Exp (0,336 Ckat), menghasilkan konversi sebesar 77 %. Kondisioptimal diperoleh pada suhu 383 K dengan konsentrasi katalis 6 % dari berat DALMs.

Effect of HCl/γ-Al2O3 and HCl/Ni/γ-Al2O3 Catalyst on The Cracking of Palm Oil Alda Titania Dewanti; Rismawati Rasyid; Ruslan Kalla
Jurnal Kimia Valensi Jurnal Kimia VALENSI Volume 8, No. 2, November 2022
Publisher : Syarif Hidayatullah State Islamic University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/jkv.v8i2.25774

Fuel oil has a deficit every year. Therefore, a substitute fuel is needed, which can be obtained more efficiently. One of the alternative fuels that have been widely researched is biofuel. Catalytic cracking is a method of producing biofuels such as biogasoline (C5-C9), bioavtur (C10-C15) and green diesel (C16-C22). This research aims to produce biofuels by catalytic cracking of palm oil using HCl/γ-Al2O3 and HCl/Ni/γ-Al2O3 catalysts (1, 3, 5 and 7%). The catalyst was prepared by wet impregnation and characterized by x-ray diffraction, Brunauer Emmett teller and ASTM-D664. The reaction cracking process was operated at a constant temperature of 370 °C, 50 ml volume, and 1 atm pressure. The best catalyst for cracking palm oil is HCl/Ni/γ-Al2O3 (5%) with a yield of 81%, selectivity to biogasoline at 6.41%, bioavtur at 33.81%, and green diesel at 20.33%.

Co-Authors Achmad Roesyadi Adrianto Prihartantyo Ahmad, Muhammad Aslam Akrom, Akrom Alda Titania Dewanti Alda Titania Dewanti Alda Titania Dewanti Andi Aladin Andi Suryanto Andi Suryanto Annisa, Siti Nur Anshariah Anshariah Anshariah, Anshariah Astuti, Andi Rina Ayu Azzahra, Qanitati Budi Setiawan Dadi Priyono Deritawati Deritawati Deritawati Devita Dian.L Dewanti, Alda Titania Faradillah, Husnah Isran Asnawi Kardiman, Kardiman Kusuma, Heri Septya La Ifa Mahfud Mahfud Mahfud Mahfud Mahfud Mahfud Masruhin Masruhin Masruhin Muh. Azis Albar J. Muhammad Budi Adiputra Reski Muhammad Fitrah N Nurjannah, N Nurjannah Nirma Nirma Nirma Nurhalifa Nurhalifa Nurhalifa Nurjannah Nurjannah, N Nurul Faradillah Omar Hassouna Rahmania Malik Rahmaniah Malik Rahmaniah Malik Ramadhan, Alif Qayyum Ricco Aditya S. W Ruslan Kalla Ruslan Kalla Ruslan Kalla Ruslan Kalla, Ruslan Sadul, Alvira Setyawati Yani Syamsuddin Yani Takdir Syarif Thahirah Arief Ummu Kalsum Wahyuni, Arinda Waliyadin Waliyadin, Waliyadin

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