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Isra Mouludi
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Politeknik ATI Padang Jl Bungo Pasang Tabing Padang, 25171 Indonesia
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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 6 Documents
 1 
Search results for , issue "Vol 4, No 1 (2023): Published in June 2023" : 6 Documents clear
Evaluasi Konstanta Kecepatan Ekstraksi Beta (ß)-Karoten Berbasis Campuran Pelarut Aseton dan Dietil Eter Nirmala Johar; Mega Mustikaningrum
REACTOR: Journal of Research on Chemistry and Engineering Vol 4, No 1 (2023): Published in June 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, β-carotene 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.
Peningkatan Efisiensi Poli Tanin Sebagai Dye Pada Dye Sensitized Solar Cell Menggunakan Crosslinker Glutaraldehyde Hanifah Putri Indah Subriadi; Hardeli Hardeli
REACTOR: Journal of Research on Chemistry and Engineering Vol 4, No 1 (2023): Published in June 2023
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/reactor.v4i1.72

Abstract

Dye Sensitized Solar Cell (DSSC) is the latest generation of solar cells with dyes as absorbers of photons from sunlight. At this time, the DSSC efficiency obtained is still relatively low so that research on DSSC is still being developed to produce DSSC with higher efficiency. One of the methods used to increase the efficiency of DSSC is polymerization of dyes. Polymerization of dyes aims to increase conjugated double bonds. The more conjugated double bonds, the more photons will be absorbed so that more electrons will flow. In this study, tannins were used as dyes. In the tannin polymerization process, crosslinking agents are used to bind tannin monomers with other tannin monomers. the variable in this study was the volume of the glutaraldehyde crosslinking agent (1.5 mL, 2.5 mL, 3 mL). The results of this study obtained the highest DSSC efficiency of 12.20% at a volume of 2.5 mL of crosslinking agent.
Absorpsi CO2 Pada Wetted Wall Column dengan Variasi Laju Alir NaOH dan Konsentrasi Methyldiethanolamine Elida Purba; Rio Riski Simbolon
REACTOR: Journal of Research on Chemistry and Engineering Vol 4, No 1 (2023): Published in June 2023
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/reactor.v4i1.81

Abstract

This research describes the biogas purification process by reducing CO2 content using NaOH solution as an absorbent and methyldiethanolamine (MDEA) as a promoter in Wetted Wall Column (WWC). The purpose of this study was to determine the effect of MDEA concentration and flow rate of NaOH + MDEA solution on CO2 absorption. The column is made of acrylic material with a diameter of 4.5 cm, height 50 cm, equipped with a tube with a diameter of 1.27 cm, height 45 cm. The tube is in the center of the column. The flow rate of absorbent solution for each run was varied as 150, 200, 250 and 300 ml/min and the concentration of MDEA for each run was 4% wt and 6% wt in 1 M NaOH. The biogas flow rate was 6 L/min, which was fed from the bottom of the column. The samples were analyzed by Gas Chromatography 2014 AT (SHIMADZU Corp 08128). The results showed that at 6% NaOH + MDEA solution, the solution flow rate of 150 mL/min was the best. Under these conditions, the output CO2 content is 13.306% and the output CH4 content is 81.737%. The results of the output CO2 content did not reach the 90% target because the biogas was contaminated by gas from the environment and the lack of control over the condition of the equipment during the absorption process.
Sintesis Biooil dari Limbah Pelepah Kelapa Sawit Berbasis Metode Pirolisis Hendra Saputra; Ahdiat Leksi Siregar; Rahma Yusni Oktavia; Dimas Frananta Simatupang
REACTOR: Journal of Research on Chemistry and Engineering Vol 4, No 1 (2023): Published in June 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 Cis-Vaccenic acid.
Pengaruh Penambahan Ekstrak Jeruk Purut (Cytrus hitrix D.C) Sebagai Koagulan Alami Terhadap Karakteristik Karet Wika Atro Auriyani; Feerzet Achmad; Deviany Deviany; Muhammad Ikhwan Ardian; Rizky Dimas Prasetyo; Aldillah Herlambang; Musa Musa
REACTOR: Journal of Research on Chemistry and Engineering Vol 4, No 1 (2023): Published in June 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.
Analisis Pengendalian Kebisingan Melalui Pemetaan Untuk Mengurangi Paparan Populasi di Area Pelabuhan Batu Ampar Kota Batam Ahmad Viqri; Shinta Indah; Vera Surtia Bachtiar
REACTOR: Journal of Research on Chemistry and Engineering Vol 4, No 1 (2023): Published in June 2023
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/reactor.v4i1.88

Abstract

Batu Ampar Port is the largest loading and unloading port of the three existing loading and unloading port facilities in Batam and the largest port for manufactured goods used by companies to supply the industrial sector in Batam. In addition to having a positive impact, the Batu Ampar port also has a negative impact in the form of a decrease in environmental quality, especially the noise level generated by activities in the Batu Ampar Port area. In this study the noise sampling process used the Svantek tool, sampling was carried out for 24 hours with a time limit of 24 intervals, then sampling was carried out for 10 minutes at each time interval. The research results obtained were that from all sampling points the highest noise was in the East Pier area of 70 – 78.5 dB(A) at 08:00 – 23:00 WIB. While the area with the lowest noise level is in the BPJS flat area of 54.7 – 73.5 dB(A) at 06:00 – 05:00 WIB. It can be concluded that many of the noise values obtained exceed the quality standards in accordance with Kepmen LH No. 48 of 1996. This was due to several factors, namely loading and uploading of very dense containers which resulted in more and more work activities. Noise elimination measures in the Batu Ampar port area are important to do considering the results of noise measurements still exceed the quality standards, Barriers are one of the technologies that can be applied to reduce noise in the Batu Ampar port, Batam, both natural and artificial barriers, so the Batu Ampar port noise problem can be solved.

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