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All Journal Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Dharmakarya : Jurnal Aplikasi Ipteks Untuk Masyarakat Jurnal Riset Kimia Jurnal Litbang Industri Jurnal Ilmiah Biosaintropis (Bioscience-Tropic) Jurnal Ilmiah Pertanian Science and Technology Indonesia Unri Conference Series: Community Engagement Jurnal Teknik Kimia Indonesia International Journal of Community Service Jurnal Abdimas Bina Bangsa Journal of Bioprocess Chemical and Environmental Engineering Science Prosiding Konferensi Nasional PKM-CSR Jurnal Teknologi Kimia Unimal JUARA: JURNAL WAHANA ABDIMAS SEJAHTERA Leuser Journal of Environmental Studies JURNAL REKAYASA KIMIA & LINGKUNGAN
Ida Zahrina
Universitas Riau
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Nursing Physics Public Health Social Sciences Other

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Perengkahan PFAD (Palm Fatty Acid Destillate) Untuk Menghasilkan Biofuel Menggunakan Katalis Ni-Mo/Zeolit Setiawan, Rudi; Zahrina, Ida; Yenie, Elvi
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 1, No 1 (2014): Wisuda Februari Tahun 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Petroleum reserves are depleted in Indonesia along with increased fuel requirements, demanding Indonesian society to harness alternative energy, one of which is biofuel. In this study, biofuels produced from cracking fatty acids contained in Destillate Palm Fatty Acid (PFAD). PFAD converted into biofuels via catalytic cracking process using a catalyst Ni.Mo / Zeolite with reaction temperature 380 oC in a stirred batch reactor. Metal concentrations in the zeolite was varied at 0%, 0.5%, 1% and 1.5% and the variation of the reaction stirring 300 rpm, 400 rpm, 500 rpm and 600 rpm. Cracking process using nitrogen gas with a flow rate of 150 ml / min. Yield (%) of the product obtained at the maximum stirring speed of 500 rpm with a metal concentration of 1%, amounting to 71.43% or 125 ml with 31.53% biofuel conversion. The composition of biofuels on cracking products was 8.8% and 35% Gasoline Kerosene and Diesel.  Key Words: Biofuel, Catalytic Cracking, Ni.Mo/Zeolite, PFAD
Pengaruh Rasio Umpan Terhadap Produksi Bio-Oil Dari Co-Pyrolysis¬ Tandan Kosong Kelapa Sawit Dan Low-Density Polyethyelene Nanda, Widia Rizki; Sunarno, Sunarno; Zahrina, Ida
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 7 (2020): Edisi 1 Januari s/d Juni 2020
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Bio-oil is a dark brown liquid consisting of aliphatic, aromatic, and heterocyclic compounds which have the potential to be liquid fuels. Bio-oil can be produced from a mixture of biomass and synthetic polymers through the co-pyrolysis process. Copyrolysis is a pyrolysis process that involves two or more different materials as a feedstocks. Potential feedstocks for the production of bio-oil are oil palm empty fruit bunches (OPEFB) and low-density polyethylene (LDPE). The purposes of this study were to determine the effect of feed ratio on bio-oil yield, and characterize the physical properties of bio-oil. The co-pyrolysis process using OPEFB and LDPE as feedstocks, the feed ratio (OPEFB/LDPE) was varied in 100/0, 75/25, 50/50 and 25/75 at temperature was 400°C. The results of this study showed that the best bio-oil yield obtained at feed ratio of 25% OPEFB / 75% LDPE was 63.2%. The characteristics of physical properties such as density, viscosity, acidity and heating value of the best biooil were 0.838 g/ml, 3.63 cSt, 3.81 and 35.3 MJ/kg. The results of this study indicate that the pyrolysis process between OPEFB and LDPE has a positive synergistic effect that increases hydrocarbon content and reduces phenol content in bio-oil. Key words: bio-oil, co-pyrolysis, LDPE, liquid fuels, OPEFB
Karakteristik Nades (Natural Deep Eutectic Solvents) Dewi, Yuli Piana; Zahrina, Ida; Yelmida, Yelmida
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 8 (2021): Edisi 1 Januari s/d Juni 2021
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

NADES (Natural Deep Eutectic Solvents) have been widely applied as a catalyst and solvents for extraction/reaction processes. The characteristics of NADES (pH, density, viscosity, surface tension, refractive index) are very important to application of NADES. The increasing density of NADES is influenced by the length of the carbon chain in the HBD and is influenced by the temperature where the higher the temperature the density will decrease. Viscosity is inversely proportional to temperature where the higher the temperature, the viscosity of NADES will decrease. NADES from choline chloride and glycerol are more polar than NADES from choline chloride and ethylene glycol. Surface tension increases with increasing salt ratio. As for the refractive index, the measurement of the refractive index decreases with increasing temperature.Keywords: Catalyst, Characteristics, Density, NADES, Viscosity.
Esterifikasi Asam Lemak Dengan Katalis Enzim Pada Sintesis Emulsifier Mulya, Dynna Ardilla Putri; Zahrina, Ida; Helwani, Zuchra
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 7 (2020): Edisi 2 Juli s/d Desember 2020
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Monoglycerides, the glycerol monoesters of fatty acids, are molecules consisting of a hydrophilic head and a hydrophobic tail with surfactant and emulsifying properties that help hydrophilic-lipophilic substances mix all together. Therefore, they can be used in food, detergent, plasticizer, cosmetic and pharmaceutical formulations. Monoglycerides (MG) and diglycerides (DG) are a group of synthetic emulsifiers obtained from the process of esterification of fatty acids with glycerol using an organic catalyst, enzyme, and solid catalyst. . In this journal, a green technology catalyst was used in the form of enzyme catalyst. Enzymes are proteins that act as biological catalysts (biocatalysts). Catalysts accelerate chemical reactions. The molecules upon which enzymes may act were called substrate and the enzyme converts the substrate into different molecules known as products. Lipase enzymes were used for biotechnological applications in the dairy, oil, surfactant, and pharmaceutical industries. The production of biotechnology products using the enzyme lipase is the usual choice in line with the rapid progress of development. Keywords: enzyme catalysts, esterification, lipase enzyme, monoglycerides
Esterifikasi Asam Lemak Menggunakan Katalis Heterogen Hutagaol, Nurhidayah; Zahrina, Ida; Yelmida, Yelmida
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 7 (2020): Edisi 2 Juli s/d Desember 2020
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Mono-di-acylglycerol (MDG) is a material capable of joining two compounds with different polarities. MDG is a synthetic emulsifier that can be obtained from the esterification reaction of fatty acids with glycerol using organic catalysts, enzyme catalysts, and heterogeneous catalysts. The esterification reaction is a reaction between carboxylic acids and alcohols to produce esters. Esterification reactions generally use inorganic acids such as H2SO4, esterification reactions generally cause corrosion, to inhibit zeolitic catalysts are used. In this journal, heterogeneous catalysts are used, where heterogeneous catalysts occur in more than one phase, the catalyst can be solid in a liquid or a solid in a gas. Catalysts can speed up chemical reactions without changing at the end of the reaction. In general, heterogeneous catalysts are made from transition metal elements because they have good gas-absorbing properties. Keywords: esterification, heterogeneous catalysts, mono-di-asilglyserol.
Fraksionasi Metil Ester Asam Lemak (Biodiesel) Menggunakan Pelarut Urea Komang, Hendri; Helwani, Zuchra; Zahrina, Ida
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 7 (2020): Edisi 2 Juli s/d Desember 2020
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Biodiesel / Fatty Acid Methyl Ester (FAME) is a renewable fuel. However, biodiesel circulating in the market has the disadvantage of low oxidation stability. To improve the quality of biodiesel, biodiesel fractions are separated. The saturated and monounsaturated fractions have ideal properties as biodiesel and the polyunsaturated fraction has a very low oxidation stability which is undesirable in biodiesel. Urea complexation is one of the ways separating biodiesel fractions, and methanol is one of the commonly used solvents. As a parameter of the success of separation iod numbers are tested. The optimum condition for biodiesel separation is determined by the effect of the FAME: urea ratio and the FAME: methanol ratio. At optimal separation, the biodiesel iodine was 58.13, ie at the FAME:urea ratio of 1:3 and the FAME:methanol ratio of 1:3. The separated polyunsaturated FAME fraction can be used in the oleochemical industry and other processes that require a high degree of unsaturation. Keywords: biodiesel/FAME, oxidation stability, urea complexation, saturated and unsaturated
Pembuatan Biofuel Dari Minyak Goreng Bekas Melalui Proses Catalytic Cracking Dengan Katalis Fly Ash Hazzamy, M Asyraf; Zahrina, Ida; Yelmida, Yelmida
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 1, No 1 (2014): Wisuda Februari Tahun 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Petroleum is a fossil fuel that can not be renewed but dwindling availability. Biofuel is a renewable alternative energy that can replace petroleum. The manufacture of biofuels by using catalytic cracking feedstock used cooking oil. Cooking oil is a waste product of the food industry. Dangerous if used cooking oil because it contains carcinogens and when discharged into the environment causing pollution. Oleic acid and palmitic acid contained in the used cooking oil is high enough to be able to be converted into biofuel. Variations used are temperature process (380 0C, 400 0C, 420 0C) and weight of fly ash 5%, 7% and 9% of the weight of used cooking oil. This study aims to produce a maximum yield of biofuel from used cooking oil by catalytic cracking catalyst silica from fly ash oil. Results were analyzed by the method viskosimetri cracking. Density stands at cracking results from 0.7727 to 0.7930 g / ml. Best yield obtained was 31.72% at 420 0C and 9% by weight of fly ash.  Keyword : Biofuel, catalytic cracking, fly ash, wasted cooking oil
Pengaruh filler carbon black terhadap sifat dan morfologi komposit natural rubber/polypropylene B Bahruddin; Ida Zahrina; Said Zul Amraini
Jurnal Teknik Kimia Indonesia Vol 9, No 2 (2010)
Publisher : ASOSIASI PENDIDIKAN TINGGI TEKNIK KIMIA INDONESIA (APTEKIM)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/jtki.2010.9.2.4

Abstract

The effect of carbon black (CB) filler content and mixing technique on tensile properties and morphology of vulcanized natural rubber/polypropylene (NR/PP) blends were studied. The blends were performed in an internal mixer with NR/PP mass ratio of 70/30. The filler was mixed with the blend by two ways. First, CB was mixed with NR in roll-mill before blending with PP in internal mixer and the second, CB, NR and PP were mixed together in internal mixer. The plasticizer and maleated polypropylene (MA-g-PP) compatibilizer were added at constant value with mass fraction of 2% and 5%, respectively. Sulfur was used as curative agent with composition of 3 per hundred rubbers (phr) for the dynamic vulcanization process. The mixing was conducted at 180 oC with the rotor speed of 60 rpm. The morphological study on cryogenically fractured samples was performed using scanning electron microscopy and differential scanning calorimetry. The tensile strength and elongation at break were measured by ISO 527-2 Type 5A standard. The results indicate that the addition of CB as filler could improve the morphology and the properties of the NR/PP blends significantly, especially at CB mass fraction of 30% and blending by first technique. At these condition, tensile strength and elongation at break were found to be 9,8 MPa and 413%, respectively. Keywords: natural rubber, thermoplastic elastomer, carbon black filler, tensile properties, morphology AbstrakPenelitian ini mempelajari pengaruh komposisi dan teknik penambahan filler carbon black (CB) terhadap sifat tensil dan morfologi campuran natural rubber/polypropylene (NR/PP). Sampel campuran disiapkan dengan menggunakan internal mixer pada rasio massa NR/PP 70/30. Filler ditambahkan ke dalam campuran NR/PP dengan komposisi 10%, 20% dan 30% massa. Penambahan filler dilakukan dengan dua cara, pertama dicampur dengan NR terlebih dahulu sebelum pencampuran NR dan PP, dan kedua dicampur bersama-sama NR dan PP dalam internal mixer. Ke dalam campuran juga ditambahkan plastisizer 2% massa dan kompatibilizer MA-g-PP sebesar 5% massa. Proses pencampuran menggunakan metode vulkanisasi dinamik pada suhu 180 oC dan kecepatan rotor 60 rpm. Sebagai curative agent digunakan sulfur dengan komposisi 3 phr (per hundred rubber). Sifat tensil campuran diukur menggunakan standar ISO 527-2 Tipe 5A. Morfologi campuran dianalisa menggunakan scanning electron microscopy. Diperoleh bahwa sifat tensil dan morfologi campuran terbaik diperoleh pada komposisi CB 30% menggunakan teknik pencampuran yang pertama. Pada kondisi tersebut; kuat tarik dan elongation at break campuran masing-masing adalah 9,8 MPa dan 413%.Kata kunci: natural rubber, termoplastik elastomer, filler carbon black, sifat tensil, morfologi
PENERAPAN TEKNOLOGI WINDROW COMPOSTING BAGI MASYARAKAT SEKITAR TPA MUARA FAJAR PEKANBARU Ida Zahrina; Elvi Yenie
Dharmakarya Vol 10, No 2 (2021): Juni, 2021
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/dharmakarya.v10i2.33178

Abstract

Volume sampah organik yang cukup besar di TPA Muara Fajar dapat dimanfaatkan oleh warga sekitarnya dengan mengolahnya menjadi kompos. Selain dapat memperpanjang umur TPA, kegiatan pengomposan ini juga dapat meningkatkan perekonomian masyarakat. Oleh karena, perlu adanya kegiatan pengabdian kepada masyarakat sekitar TPA Muara Fajar agar memiliki ketrampilan dalam mengolah sampah organik menjadi kompos dengan teknologi windrow composting. Teknologi ini cocok diterapkan bagi warga sekitar TPA Muara Fajar karena dapat diaplikasikan untuk semua jenis sampah organik, loading capacity yang besar, serta menghasilkan kompos dengan kualitas yang baik. Kegiatan ini diikuti oleh warga RT 01 RW 03 Kelurahan Muara Fajar, Pekanbaru melalui sosialisasi, penyuluhan, pelatihan serta evaluasi. Dari kegiatan ini, masyarakat telah mampu memproduksi kompos dari sampah organik. Namun masih perlu kegiatan pengabdian lanjutan untuk membentuk unit usaha kompos di masyarakat.
Pembuatan Biodiesel Dari Cpo Off Grade Menggunakan Reaktor Membran Firman Maulana; Syarfi Syarfi; Ida Zahrina
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 1, No 1 (2014): Wisuda Februari Tahun 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

The cost of biodiesel production process is still a challenge, it needs to explore any raw material which is economically inexpensive and effective technologies to overcome the problem. CPO off grade is deemed economically potential to be processed into biodiesel because its inexpensive cost . Membrane reactor is an alternative technology that need to be developed  to address this challenge . The research aimed to study the effect of oil to methanol mole ratio and transmembrane pressure on biodiesel production from CPO Off Grade . The study was conducted using two- step process , namely the process of esterification and transesterification process . Esterification process was carried out with variation of oil to methanol mole ratio of 1:12. The amount acid catalyst used is  2 % by weight of oil and reaction time of 2 hours . Transesterification process is carried out on membrane reactor with  variation of oil to methanol mole ratio of 1:12 , 1:16 and 1:20 and transmembrane pressure of 1 bar , 1.5 bar , 2 bars and a catalyst concentration of 1 wt% base oil and process temperature of 60 º C. The results showed the highest conversion reached 80.14 % at the mole ratio of 1:20 and transmembrane pressure of 2 bar    Keywords : Biodiesel, CPO Off Grade, Membrane Reactor, Mole ratio, Transmembran Pressure.
Co-Authors Abd Rahman, Sunarti Ady Maulana Afrilianti, Azyarah Ahmad Fadli Aisha, Farra Al'farisi, Cory Dian Alfajar, Fariz Alfarisi, Cory Dian Almasdi Syahza Aminuyati Arya Wiranata B Bahruddin Bagus Duhan Irfandy Bahruddin Bahruddin Bahruddin Bahruddin Bahruddin Ibrahim Bahrudin Bahrudin Chatarina Umbul Wahyuni Dewi, Yuli Piana Djaimi Bakce Drastinawati Drastinawati, Drastinawati Dyah Tasya Elvi Yenie Elvi Yenie Elvi Yenie, Elvi Eriyati Eriyati Eriyati Eriyati, Eriyati Evelyn Fadila, Rawdatul Fadillatul Nisa Fajril Akbar Firman Maulana Hafidawati, Hafidawati Hazzamy, Muhammad Asyaf Hutagaol, Nurhidayah Indra Yasri Irdoni Irdoni Irfandy, Bagus Duhan Islamy, Muhammad Agung Israyandi Israyandi Ivan Fadhillah Iwan Kurniawan Jahrizal Julhijah, Noni Khairat, Khairat Khobar Bahari Pane Komalasari Komalasari Komang, Hendri Laisa Husraini Lusiana Sri Wahyuni M Asyraf Hazzamy Muhammad Agung Islamy Mulya, Dynna Ardilla Putri Musbar, Hafidawati Mutamima, Anisa Nadimisia, Tiara Dwisca Nanda, Widia Rizki Neonufa, Godlief Frederick Niken Triani Klaway Reza Nova Ramadhani Farnas Nurfatihayati Rahman, Sunarti Abd Ricfan Anggriawan Rinaldi Idroes Rizki Agustina Rudi Setiawan Setiaries, Vonny Silvia Reni Yenti Siti Rahmalia Sri Rezeki Muria SUNARNO Sunarno Sunarno Sunaryo Sunaryo Syamsu Herman Syarfi Syarfi Syoffinal Syoffinal Tengku Firly Musfar, Tengku Firly Teuku Azhari Hassan Trisuciati Syahwardini Ulfaa, Suci Mas’ama Utami, Anggia Afza Vonny Setiaries Johan Wiranata, Arya Yelmida Azis Yulia, Indri Zuchra Helwani Zuchra Helwani, Zuchra