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INDONESIA
REACTOR : Journal of Research On Chemistry And Engineering
Published by Politeknik ATI Padang
ISSN : -     EISSN : 27460401     DOI : -
Core Subject : Science, Agriculture, Engineering,
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Energy
1. Bioenergy 2. Waste Treatment 3. Simulation and control process 4. Advanced materials 5. Bioengineering (chemical & massa) 6. Bioprocess 7. General chemistry 8. Applied chemistry 9. Biochemical 10. and other as problem solving in the field of environment, energy, food, agriculture, medical and pharmacy
Arjuna Subject : Teknik Kimia (semua kategori) - Teknik Kimia (Lain-Lain)
Articles 121 Documents
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Sintesis Biooil dari Limbah Pelepah Kelapa Sawit Berbasis Metode Pirolisis Saputra, Hendra; Siregar, Ahdiat Leksi; Oktavia, Rahma Yusni; Simatupang, Dimas Frananta
REACTOR: Journal of Research on Chemistry and Engineering Vol. 4 No. 1 (2023)
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/reactor.v4i1.68

Abstract

Biooil is a liquid obtained from cracking lignocellulose structures into simpler compounds from the pyrolysis process. The lignocellulose content in palm midrib can be used as a raw material for making biooil. This study examines the effect of the length of time burning at a temperature of 250 ℃ on the physical and chemical characteristics of the resulting biooil. The independent variable was pyrolysis time with 1 hour, 2 hours, and 3 hours. The parameters used to determine the quality of biooil are specific gravity, pH, color, and composition of biooil by GC-MS instrument. From the results obtained, the highest yield of biooil was 7.9945% from sample with 2 hours pyrolysis time. The quality of biooil showed the average pH ranged between 2.65–3.08 and the average density ranged from 1.0485 to 1.1055. The visual of biooil was dark brown color with the largest biooil content being CisVaccenic acid.
Pengaruh Variasi Waktu dan Kecepatan Pengadukan Terhadap Difusivitas dan Konstanta Reaksi Dengan Proses Ekstraksi Reaktif Az Zahra , Clarisa Hany; Mustikaningrum , Mega; Sawali , Fikrah Dian Indrawati; Mustika, Pra Cipta Buana Wahyu
REACTOR: Journal of Research on Chemistry and Engineering Vol. 4 No. 2 (2023)
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/reactor.v4i2.106

Abstract

The world is experiencing a crisis of scarcity of diesel fuel sources. The B30 program is to develop energy sources by utilizing alternative energy sources to prevent petroleum shortages. This program also supports research, namely making biodiesel using non-edible raw materials. Apart from that, another benefit of this research is to determine the effect of time on the yield of biodiesel production, knowing the effect of stirring speed on the diffusivity constant and reaction speed constant of the reactive extraction process. Biodiesel production in this research uses a reactive extraction process. The raw materials used are mahogany seeds, the solvent is methanol, chloroform as a co-solvent, and KOH as a catalyst. This process uses a temperature of 65°C, reaction time of 40 and 80 minutes, and varying stirring speeds of 200 and 300 rpm. The effect of time with a variable stirring speed of 200 rpm the longer the resulting yield increases, while at a stirring speed of 300 rpm the resulting yield decreases. The yield obtained at 200 rpm stirring was 82.363% (40 minutes), 87.6366% (80 minutes), 84.7605% (40 minutes), and 78.7204 (80 minutes). For the methyl ester diffusion constant, the stirring speed of 200 rpm is 8,20 x 10-8 dm2/minute, while the stirring speed of 300 rpm is 8,17 x 10-8 dm2/minute. The reaction rate constant is 1.99 dm3/mol min.
Penentuan Formulasi Terbaik Pembuatan Sampo Kendaraan Berbahan Dasar Sisa Produk Sampo di Industri Sampo Fauzi, Muhammad Rezal Alfian; Hasannah, Cintiya Septa; Perdani, Meka Saima; Prajati, Gita
REACTOR: Journal of Research on Chemistry and Engineering Vol. 5 No. 1 (2024)
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/reactor.v5i1.122

Abstract

This research aims to process remaining shampoo products originating from the sampo industry into vehicle shampoo so that it has sales value and also has good quality. Determining the formulation for making this vehicle shampoo uses the trial and error method. After that, the variation data obtained will be tested through a pH test, density test, viscosity test, foam power test and corrosivity test. The results obtained are that the remaining variation data for the 25 mL shampoo product is the most optimal data because it meets the requirements for pH, density, viscosity and foaming test results. The results obtained from the variation data to make the best formulation were 47% remaining shampoo, 8% LAS, 8% NaCl (0.5 N), 8% NaOH (0.1 N), 0.4% Essense (Bubble Gum). %, and Aquadest 30%. This formulation produces a pH value of 7.18. Meanwhile, the density is 1.0257 g/cm3. The viscosity of this composition is 2.999 Pa.s. The stability of the foam power is 66,7% and the corrosion resistance test results get a value of 0.145655 mm/year or in the "Good" category in terms of corrosion resistance.
Evaluasi Konstanta Kecepatan Ekstraksi Beta (ß)-Karoten Berbasis Campuran Pelarut Aseton dan Dietil Eter Johar, Nirmala; Mustikaningrum, Mega
REACTOR: Journal of Research on Chemistry and Engineering Vol. 4 No. 1 (2023)
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/reactor.v4i1.69

Abstract

Research on the extraction of ß-carotene has been carried out intensively in recent years, considering the wide application of ß-carotene compounds, especially in the pharmaceutical and health fields. In the health sector, βcarotene has antioxidant compounds that can neutralize unstable molecules called free radicals. When the number of free radicals is too high in the body, it can cause cell and tissue damage which is known as oxidative stress. So the consumption of β-carotene should be increased. Various technologies are used for the isolation of ß-carotene from raw materials, such as maceration, soxhlet, ultrasound-assisted extraction (UAE), pressurized liquid extraction (PLE) and supercritical liquid extraction (SFE). This study uses the maceration method with the consideration that the energy used is relatively low and refers to the heat-resistant nature of β-carotene. The purpose of this study was to analyze the addition of co-solvent diethyl ether to acetone solvent to the value of the extraction rate constant (k). In this case, the addition of a co-solvent can help transport β-carotene to the solvent effectively by increasing the yield of β-carotene produced. Quantitative analysis was carried out using calculations based on mass balance, pseudo- second-order, and Peleg to then conclude which model is by the resulting data. The final yield of β-carotene was 34.395; 103.287 and 108.974 µg/g for diethyl ether, acetone, and a mixture of acetone with diethyl ether (24: 1) v/v respectively. The value of the extraction speed constant for each solvent diethyl ether, acetone, and a mixture of acetone with diethyl ether was 0.8913; 1.03975, and 2.0975 (minute-1) based on the Peleg model and 0.00738 for each solvent; 0.00828; 0.0141 (gram/mg.minute) based on the pseudo second-order model.
Pengaruh Cangkang Pomacea canaliculata L Terhadap Sifat Fisika dan Kimia Air Sungai Cisadane Maftukhah, Siti; Agustine, Dine; Amyranti, Mutia; Sukma, Andhika Cahaya Titisan
REACTOR: Journal of Research on Chemistry and Engineering Vol. 5 No. 1 (2024)
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/reactor.v5i1.118

Abstract

The Cisadane River is a very important ecosystem for the people of the city of Tangerang. Its utilization has the potential to produce waste that can damage aquatic life so that it becomes one of the sources of the problem of decreasing water quality both physically and chemically. One of the efforts made to overcome the problem of Cisadane river water is to use water purifiers derived from natural materials so that they do not endanger health and can bind heavy metals. The purpose of this study was to determine the effect of adding snail shells to the water quality of the Cisadane river in industrial areas, urban areas and slums in terms pH value, TDS value and Pb heavy metal. The experimental procedures in this study were snail shell preparation, Cisadane river water sampling, Sampel analysis before application, snail shell powder application, and Sampel analysis after application. The results of analys show that the clarity level of Cisadane river water ranges from 19 NTU to 59 NTU, the pH value ranges from 7.2 to 7.9, the TDS value ranges from 60 mg/l to 170 mg/l and the heavy metal content is 0.0047 mg /l. The conclusion of this research is that there is an increase in the level of clarity with the addition of snail shells by 45%, there is not visible effect of the snail shells addition’s on the pH value and content of Pb heavy metal. And there is an increase in the TDS value after adding snail shells.
Rancang Bangun Mesin Digesting Tandan Kosong Kelapa Sawit sebagai Bahan Baku Brown Paper Hasibuan, Fauzatu Arabica Yatasya; Dina, Sari Farah; Tarigan, Krissandarta; Indriati, Lies
REACTOR: Journal of Research on Chemistry and Engineering Vol. 5 No. 1 (2024)
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/reactor.v5i1.120

Abstract

Indonesia's pulp and paper production capacity was 5.5% of global production capacity in 2021. As an effort to support the development of the pulp and paper industry in Indonesia, pulp from empty oil palm fruit bunches (EFB) waste which are currently abundant is being tried to develope as raw material for brown paper. To simplify the process of developing pulp quality from EFB, the authors tried to design a rotary digester on a laboratory scale as a EFB digesting machine. The steps used in this research are assembling digester, making pulp, and finally analyzing the data. The digester machine was successfully designed to carry out the pulping process with operating conditions at a pressure of 7 bar, a temperature of 160°C, and a stirrer speed of 80 rpm with a maximum capacity of 1.3 L. The designed rotary digester is capable of producing pulp with an optimal yield level (43%) under reaction conditions, a temperature of 100°C and a NaOH concentration of 5%.
Pengaruh Penambahan Ekstrak Jeruk Purut (Cytrus hitrix D.C) Sebagai Koagulan Alami Terhadap Karakteristik Karet Auriyani, Wika Atro; Achmad, Feerzet; Deviany, Deviany; Ardian, Muhammad Ikhwan; Prasetyo, Rizky Dimas; Herlambang, Aldillah; Musa, Musa
REACTOR: Journal of Research on Chemistry and Engineering Vol. 4 No. 1 (2023)
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/reactor.v4i1.85

Abstract

Natural rubber is a plantation commodity that has a significant role in the country's economy. This study aims to determine the effect of the natural coagulant extract of kaffir lime with centrifugation and non-centrifugation treatment on the coagulation process, pH and coagulation time, characteristics of rubber clone IRR 118 and comparison of the quality of rubber with 2% formic acid chemical coagulant. The volume of coagulant used was 75 mL mixed with 150 mL of latex, so that coagulation occurred and produced coagulum. Then the resulting coagulum is analyzed for the characteristics of the rubber to determine the quality of the rubber. Characteristic analysis carried out was Dry Rubber Content (DRC), Initial Plasticity (Po), Plasticity Retention Index (PRI), Mooney Viscosity, ash content, impurities content, volatile matter content, and nitrogen content. The results showed that the natural coagulant extract of kaffir lime could coagulate latex, lowering the pH of latex thereby speeding up coagulation time. From the rubber characteristic test using kaffir lime natural coagulant it complies with SNI 06-1903-2017 SIR 20. The quality of rubber produced from using kaffir lime natural coagulant extract as a coagulant can equate the quality of rubber produced by using 2% formic acid chemical coagulant, but coagulant The natural ingredients used have drawbacks, namely the availability of seasonal fruit, and the need for treatment before being used as a coagulant.
Studi Kinetika dan Penentuan Dosis Optimum Koagulan FeCl3 dalam Menurunkan Konsentrasi Cu2+ pada Larutan Fadila, Muhammad Seachan; Afandy , Moh. Azhar; Suhirman , Suhirman; Al Fuady, Muhammad Iqbal
REACTOR: Journal of Research on Chemistry and Engineering Vol. 4 No. 2 (2023)
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/reactor.v4i2.100

Abstract

This study aims to determine the efficiency and adsorption capacity of various concentrations of FeCl3 coagulants (100-300 mg/L) to reduce Cu2+ concentrations in wastewater as well as the kinetic parameters that affect the adsorption mechanism in the coagulation process when coagulant particles added to wastewater will stick to the surface of colloidal particles, which will then change the charge. Several adsorption kinetics models employed in this study include Pseudo-first order, Pseudo-second order, Elovich, and Intra particle diffusion. The applicability of the models produced in this work was evaluated by optimizing the non-linear equations, which provide values that are more precise and in agreement with real situations when compared to the linear kinetic models. These characteristics are measured based on the value of the coefficient of correlation (R2), Sum Square Error (SSE), and Chi Square (x2). The results showed that the highest efficiency value of the FeCl3 coagulant was 98.705%, with the value of the adsorption capacity increasing along with the concentration of the FeCl3 coagulant. The kinetic model created in this work has a very excellent fit in terms of experimental data values and prediction data.
Karakterisasi Performa Adsorben Cangkang Telur Pada Proses Penyerapan Logam Merkuri (Hg) Miftahurrahmah; Ellysa; Suhendrayatna
REACTOR: Journal of Research on Chemistry and Engineering Vol. 5 No. 1 (2024)
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/reactor.v5i1.125

Abstract

Mercury (Hg) is a highly toxic heavy metal with no biological benefits, posing significant environmental and health risks upon exposure. This study investigates the adsorption characteristics of chicken eggshell-derived adsorbents for the removal of Hg from aqueous solutions. The adsorbent preparation involved washing, drying, calcination, and KOH activation. Results indicated that the 170-mesh size adsorbent exhibited the highest adsorption efficiency, achieving a 99.70% removal rate of Hg. adsorption capacity tests revealed values ranging from 79,90 to 88,90 mg/g, conforming to the Indonesian National Standard (SNI) for activated carbon. Functional group analysis using Fourier-Transform Infrared Spectroscopy (FT-IR) identified a significant increase in aldehyde and ketone groups post-activation. The adsorption process reached equilibrium within 90 minutes, with optimal removal efficiency observed at an initial Hg concentration of 3,0 mg/L. These findings suggest that chicken eggshell-based adsorbents are a cost-effective and efficient solution for mitigating Hg contamination in wastewater, offering a sustainable alternative to conventional methods.
Intensifikasi Sintesis Diasetin dan Triasetin melalui Esterifikasi Gliserol dengan Katalis Berbasis Daun Bambu Fitri, Maysa; Marwan; Syamsuddin, Yanna; Suriaini, Nanda
REACTOR: Journal of Research on Chemistry and Engineering Vol. 5 No. 1 (2024)
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/reactor.v5i1.126

Abstract

The synthesis of acetins from glycerol is achieved through esterification assisted by a solid acid catalyst and microwave irradiation. Diacetin and triacetin, suitable as biofuel additives, are produced using biogenic silica from bamboo leaves, which is chemically activated with strong acid and calcined. No research has utilized silica catalysts derived from bamboo leaf ash to produce diacetin and triacetin. This study aims to employ bamboo leaf-based heterogeneous catalysts to enhance triacetin selectivity, simplify product purification and separation, and enable catalyst reuse. Furthermore, microwave application can accelerate the reaction time. The best total selectivity for diacetin and triacetin was obtained under operating conditions of 3% catalyst concentration, a 1:6 molar ratio, and 60 minutes of microwave irradiation. The yields of diacetin and triacetin under these conditions were 65.80% and 18.70%, respectively. GC-MS and FTIR analysis confirm the presence of monoacetin, diacetin, and triacetin, with a total selectivity for diacetin and triacetin of 84,50%.

Page 8 of 13 | Total Record : 121

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