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PENYERAPAN LOGAM Pb DENGAN MENGGUNAKAN KARBON AKTIF DARI CANGKANG KEMIRI SEBAGAI ADSORBEN Supraptiah, Endang; Ningsih, Aisyah Suci; ., Fatria
KINETIKA Vol. 5 No. 1 (2014): KINETIKA 01032014
Publisher : Politeknik Negeri Sriwijaya

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Abstract

Candlenut shell is a waste which usually burned, stacked or discarded,which are unfavorable to environment. This is condition be motivated to produced commercial product from this candlenut shells waste as activated carbon and aswell as solving as environment problems.This study aimed is to obtain the optimum conditions of hydrochloric acid activator to quality activated carbon and Pb metal adsorption capacity. This activated carbon has two variation process there are carbonization process used temperature 500oC for 1 hour and the activation process with variation concentration of hydrochloric acid there are 0,2M, 0,4M, 0,6M, 0,8M and 1M for 24 hours. The product of this research isshowing the best quality activated carbon from candlenut shells which has best characteristic or fit to SNI 06-3730-95 such as to Inherent Moisture rate 8,54-10,56%, ash content 1,10-2,48%, volatile matter 17,57-20,63% and fixed carbon 67,81-71,42%. The application of activated carbon from candlenut shell can reduce the Pb metal concentration from 3 ppm to 0 ppm with activator concentration 0,4M for contact time of 1 hour with adsorption content is 100% and adsorption capacity of activated carbon from candlenut shell using hydrochloric acid as adsorbent Pb metal is 0,15 mg/g.
PENGARUH JUMLAH KATALIS DAN TEMPERATUR PADA PRODUKSI BAHAN BAKAR CAIR DARI BAN BEKAS DENGAN METODE PERENGKAHAN KATALITIK Eldwita, Kinia; Lestari, Suci Dwi; Effendy A, Sahrul; ., Fatria
KINETIKA Vol. 11 No. 2 (2020): KINETIKA 01072020
Publisher : Politeknik Negeri Sriwijaya

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Abstract

Production of the domestic tyre industries in 2019 reached 150,2 million units. With a five-year lifespan for car tire and two-year lifespan for motorcycle tire, it is estimated that millions of used tires are waste and have the potential to damage the environment. Therefore some effort is needed to recycle and convert used tyres to be more useful product. Pyrolysis (catalytic cracking), that is thermal treatment method, can degrade polystyrene which is the constituent material of tyres back into hyrocarbon compounds. This research was conducted to see the effect of temperature and catalyst percentage on liquid fuel that have obtained by using two type of catalysts. From this study it is known that entire samples meet SNI 8220:2017 for diesel fuel 48 where the sample with - Al2O3 catalyst at a temperature of 350 °C gives the best result with density of 0.83204 gram/cm3, viscosity of 3.41908 cSt, and flash point of 62 °C.
PENGARUH LEVEL KETINGGIAN AIR TERHADAP SATURATED STEAM PADA CROSS SECTION WATER TUBE BOILER MENGGUNAKAN BAHAN BAKAR GAS DAN SOLAR Manggala, Agus; ., Fatria; Lestari, Sutini Pujiastuti; Naim, Barokallah Muhammad; Sastama, Nanda
KINETIKA Vol. 11 No. 2 (2020): KINETIKA 01072020
Publisher : Politeknik Negeri Sriwijaya

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Abstract

A boiler is a device that serves to heat water to become high pressure and high temperature steam, using heat from the combustion of fuel in the combustion chamber. The growth of the domestic boiler industry will develop with research on boiler technology. One of the parameters of the steam produced is temperature and pressure. It is necessary to have the right water level in the steam production process to get saturated steam which is in accordance with the theory, which is in the range of 150-374ËšC. The results of the research show that the optimal water level is the 4th condition (60%) because it can produce saturated steam according to the pressure target with a constant state in a continuous process using diesel and gas fuel.
PENGARUH RASIO UDARA BAHAN BAKAR SOLAR DAN GAS TERHADAP KUALITAS SATURATED STEAM PADA SISTEM TWO DRUM WATER TUBE BOILER Rusnadi, Irawan; ., Fatria; Zikri, Ahmad; Lestari, Sutini Pujiastuti; Alvino, Raudi; Jaya, Julian Indra
KINETIKA Vol. 11 No. 2 (2020): KINETIKA 01072020
Publisher : Politeknik Negeri Sriwijaya

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Abstract

A boiler is an equipment used to produce steam for various purposes. In this case, the boiler used also often has problems that cause less than optimal steam results. The obstacle that occurs is usually the ratio of air to fuel which causes the combustion results to be not optimal and imperfect so that it has an impact on the production and quality of the steam produced. One of the parameters of the steam produced is temperature and pressure. Both will relate to the enthalpy of steam as a measure to determine the value of the energy contained in the steam. Therefore, this research focuses on determining the most optimal and precise ratio of air to diesel fuel and gas so that maximum combustion results are obtained. The air-to-fuel ratio which is the variable for diesels are 123.67, 128.33, 133.00, 137.67, 142.33 and for gas are 29.16, 29.44, 29.71, 29.99 and 30.26. In the resulting data, the fourth of the air fuel ratio of diesel fuel which is more optimal and precise, which is 137.67 and 29.99 for gas with the resulting value of temperature is 151oC, pressure is 5 bar and the value of the saturated steam quality is 0.7993 ≈ 0.8.
KONVERSI LIMBAH PLASTIK HIGH DENSITY POLYETHYLENE (HDPE) MENJADI BAHAN BAKAR CAIR (BBC) MENGGUNAKAN KATALIS GAMMA ALUMINA (γ-Al2O3) DAN ZEOLIT ALAM DALAM MULTISTAGE SEPARATOR Aswan1,, Arizal; ., Fatria; ., Erlinawati; Wahab, Fathul; Manggarani, Anindyta
KINETIKA Vol. 11 No. 3 (2020): KINETIKA 01112020
Publisher : Politeknik Negeri Sriwijaya

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Abstract

One of the dominant plastic waste in the world is plastic made from HDPE (High Density Polyethylene). HDPE plastic is often found in the form of plastic bags, food containers, pipe fittings, baby milk bottles, and others. This plastic is not biodegradable, so it can disturb the environment. If destroyed by burning, plastic waste will cause air pollution and cause global warming. One of alternative to reduce the number of this plastic waste is converting HDPE plastic into liquid fuel with a catalytic cracking process. This cracking process uses a Gamma Alumina (γ-Al2O3) and Natural Zeolite catalyst to speed up the reaction to save energy consumption and improve the quality of the product result. The research was conducted by analyzing the effect of temperature variations ranging from 300, 350, 400, 450, and 500 oC. The result shown that the optimum temperature of pyrolysis High Density Polyethylene (HDPE) using Gamma Alumina (γ-Al2O3) catalyst is 400oC with a density 0.7609 gr/cm3, viscosity 1.7760 mm2/s, and flash point 28.8oC. The optimum temperature of pyrolysis using Natural Zeolite catalyst is 450oC with a density 0.7282 gr/cm3, viscosity 2.8164 mm2/s, and flash point 30.9oC. The liquid fuel product from pyrolysis of HDPE plastic waste then analyzed by the GC-MS method, and it can be conclude that the liquid fuel product was a mixture of gasoline (C7-C12) and diesel (C13-C20)
PENGARUH DAYA MICROWAVE TERHADAP RENDEMEN MINYAK KAYU MANIS (Cinnamomum burmannii) DENGAN METODE MICROWAVE HYDRODISTILLATION Hananta, Bagas Oktaihza; Pratama, Putra; Aswan, Arizal; ., Fatria; ., Zurohaina
KINETIKA Vol. 11 No. 3 (2020): KINETIKA 01112020
Publisher : Politeknik Negeri Sriwijaya

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Abstract

Cinnamon oil is usually obtained by conventional methods and takes a long time. One of the newer methods that can be used is microwave hydrodistillation. The advantage of microwaves is their ability to provide energy directly to all ingredients, which saves time compared to conventional methods. This study aims to study the effect of time and microwave power on the yield of essential oils obtained. The solvent used was aquadest, the variables tested in the study were the raw material for leaves and cinnamon bark weighing 150 grams and 100 grams, respectively. The microwave power used is 180, 360, 450 Watt. The operating conditions in this method are at atmospheric pressure. When using 180W power, the yield of leaf oil and cinnamon bark is 0.65% and 0.51%, at 360W power is 0.96% and 0.75%, and 450W power is 0.88% and 0.89%. %. The value of specific energy consumption (SEC) at 180W microwave power is 1.78 kWh / gr and 3.40 kWh / gr, at 360W power is 1.50 kWh / gr and 2.91 kWh / gr and 450W power is 1.80 kWh / gr and 2.72 kWh / gr.
UNJUK KERJA PROSES PIROLISIS KATALITIK LIMBAH BAN BEKAS MENJADI BAHAN BAKAR CAIR DITINJAU DARI JUMLAH KATALIS, VARIASI TEMPERATUR, DAN WAKTU OPERASI Effendy, Sahrul; Rusnadi, Irawan; ., Fatria; Amin, Jaksen M.; Aina, Nur; Rossa, Briliantina; Waltin, Muhammad
KINETIKA Vol. 12 No. 1 (2021): KINETIKA 01032021
Publisher : Politeknik Negeri Sriwijaya

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Abstract

Indonesia's domestic rubber consumption is largely absorbed by the manufacturing industry, especially the automotive industry. The more production of vehicle, the more people will produce tires. As a result, the waste of tires in the environment is increasing. One of the alternatives to reduce the amount of tires waste is produce it become liquid fuel by catalytic pyrolysis method. The purpose of this research is to analyze percent yield liquid product and to obtain characteristics of liquid fuel observed by the number of catalyst, variation of temperature, and operation time. The result shown that the optimum temperature is 400oC using 10% NZ catalyst with product yield of 13.0284%. The optimum NZ catalyst is 2% at 300oC with product yield of 5.7946%. Also the optimum time operation is 180 minutes using 10% NZ catalyst with product yield of 9.7965%. The liquid fuel oil spesifications obtain diesel oil by testing density, viscosity, and flash point. The liquid fuel also analyzed by the GC-MS method, and it can be concluded that the liquid fuel of tires waste is mixture of gasoline (C8-C12) and diesel (C13-C20).
Co-Authors ., Erlinawati ., Zurohaina Alvino, Raudi Amin, Jaksen M. Arizal Aswan Aswan1,, Arizal Effendy A, Sahrul Effendy, Sahrul Eldwita, Kinia Hananta, Bagas Oktaihza Irawan Rusnadi Jaya, Julian Indra Manggala, Agus Manggarani, Anindyta Naim, Barokallah Muhammad Ningsih, Aisyah Suci Nur Aina Putra Pratama Rossa, Briliantina Sastama, Nanda Suci Dwi Lestari Supraptiah, Endang Sutini Pujiastuti Lestari Wahab, Fathul Waltin, Muhammad Zikri, Ahmad