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Produksi Biodiesel Dari Minyak Nyamplung Menggunakan Katalis Lempung; Pengaruh Rasio Mol Minyak : Metanol Dan Konsentrasi Aktivasi Katalis Husna, Zakiyatul; Bahri, Syaiful; Khairat, Khairat
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Biodiesel is one of alternative energy to replace fossil fuels from vegetable oil. The aims of this research were to produce biodiesel from callophylum oil using heterogen catalyst clay, determine the characteristics of the activated clay catalyst, determine the optimal conditions of making biodiesel from callophylum oil, determine the physical and chemical properties of biodiesel produced,comparing the characteristics of physics biodiesel synthesized by standards SNI 1782-2015.Catalyst is made by grinding the clay palas to a size of -100 + 200 mesh. Clay was activated using H2SO4 solution with variation of concentrations 0,5 N, 1 N and 2 N. The mixture is filtered using a vacuum pump and calcined at 300ÂºC for 3 hours. Production of biodiesel is carried out through two stages: esterification and trans-esterification. Before esterification, degumming process was done to remove impurities and gum contained in the oil. While in the trans-esterification process, variation in the mole ratio of oil : methanol is 1:6, 1:9 and 1:12, callophylum oil sample weight 50 gram and 1% by weight of clay catalyst added to the to trans-esterification reactor, reaction lasted for 120 minutes at 60ÂºC with agitation speed 400 rpm. This research resulted in the largest biodiesel yield on the use of the activation of the acid concentration 2N variation mole ratio of oil : methanol 1:9 is 86.2 %. The Characteristics of the catalyst that has a surface area and ratio of Si/Al large enough that 25,74 and 37,64 (m2/g) with biodiesel produced almost in accordance with established standards (SNI 04-1782-2015). Keywords: biodiesel, callophylum oil, palas clay, transesterification

Pembuatan Biodiesel Dari Minyak Jarak Pagar Dengan Katalis La/NZA Irnaliah, Irnaliah; Bahri, Syaiful; Khairat, Khairat
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5 (2018): Edisi 1 Januari s/d Juni 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Biodiesel is an alternative energy to replace fossil fuels. It can be made by transesterification process of vegetable oils such as jatropha oil. During the process of making biodiesel it using homogeneous catalyst such as NaOH or KOH. But homogeneous catalyst has disadvantages the formation of side product and complexity the separation of catalyst. Therefore, in this study the use of heterogeneous catalyst La/NZA was developed to produced biodiesel. The purpose of this research were produce biodiesel from jatropha oil, study the effect of mole ratio of oil/methanol and concentration of catalyst on yield of biodiesel, determine the best conditions for biodiesel production and to identify the characteristics of biodiesel produced.In the transesterification process, concentration of catalyst and mole ratio oil/methanol was variated. Yield of biodiesel based on product methyl ester and selectivity is calculated.Keyword: biodiesel, esterification, heterogeneous, transesterification

PENGOLAHAN LIMBAH CAIR SAWIT DENGAN METODE AOP (ADVANCED OXIDATION PROCESS) MENGGUNAKAN KATALIS LAMNO3 PEROVSKITE DENGAN VARIASI OKSIDAN PEROXYMONOSULFATE Hasrul, Hasrul; Saputra, Edy; Khairat, Khairat
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5, No 1 (2018): Wisuda April Tahun 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Processing of palm oil into Crude Palm Oil (CPO) will produce a large amount of liquid waste. To produce a ton of crude palm oil (CPO) produced 6 m3 of palm oil mill effluent. In this study, a process for removing organic compounds in wastewater using the advanced oxidation process by combining peroxymonosulfate (2KHS5.KHSO4.K2SO4) and a catalyst of LaMnO3 Perovskite. The combination will produce sulfate free radicals that capable degrading harmful organic compounds in effluent effectively. Nanocrystalline LaMnO3 was obtained by calcination at a temperature of 800 °C for 2 hours with an average crystal diameter of the highest peak of 17 ?m in the shape of the Rhombohedral catalyst and the catalyst has qualified the catalyst with a nanoparticle structure. Several variations of oxidation process variables were performed to assess their effect on organic matter decline. Some fixed variables were oxidation reaction temperature 30 oC, reaction time 120 min, stirring speed 400 rpm, and concentration of peroxymonosulfate solution 2 g/L and catalyst concentration 0,4 g / L. Conclution of this research is efficiency of 63.54 % for decreasing COD and efficiency by 27,4% for TOC reduction. This proved that the LaMnO3 catalyst is capable of activating peroxymonosulfate.Keywords : AOP, LaMnO3 Perovskite, Oxidation, Peroxymonosulfate

Pirolisis Katalitik Kayu Akasia (Acacia Mangium) Menjadi Bio-Oil Dengan Katalis Mo/ Lempung Rahman, Aulia; Bahri, Syaiful; Khairat, Khairat
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 3, No 1 (2016): Wisuda Februari Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Decreasing in fuel oil production capabilities and the increasing need for fuel oil will make Indonesia more addicted to fuel oil, thereby increasing the amoount of fuel imports. In Consequence, we need an innovation of energy conversion that does not rely on fossil resources, renewable and equal in value and function with fuel oil. One of that such innovation is the conversion of biomass derived from wood acacia (Acacia mangium) into bio-oil. Bio-oil can be produced through the pyrolysis process acacia (Acacia mangium) with catalyst Mo / Clay. The aims of this research is to produce bio-oil from acacia wood, determine the effect of pyrolysis temperature variations, the percentage and the amount of catalyst metal pengembanan Mo / clay and characterization of physical and chemical properties of bio-oil. Pyrolysis process carried out at the pyrolysis temperature variations 300oC, 320oC and 340oC, silinap 500 ml, biomass 50 grams with a size of -100 + 200 mesh sieve, the percentage variation of impregnation Mo metal to clay of 1%; 2% and 3%, as well as variations in the amount of catalyst Mo / clay of the biomass of 3%; 6% and 9%. The Results of this study is largest bio-oil yield in pyrolysis temperature of 320oC, the percentage of metal impregnation 2% and the use of catalysts Mo / clay 6% is 73,64%. Characterization of physical properties of bio-oil obtained in the form of density of 0,971 gr / ml, 2,079 cSt viscosity, acidity 58,369 mg NaOH / gram sample, the flash point 480C and the calorific value of 29,567 MJ / kg. While the characterization of the chemical properties of bio-oil using Gas Chromatography-Mass Spectroscopy (GCMS), several dominant chemical components such as acetic acid with a total area of 35,86%, 2-propanone with an area of 17,69%, 2-amino, 1-propanol with an area of 7,05%, propionic acid and an area of 6,20% and 1-hydroxy-2-butanone with an area of 4,12%.Keywords: bio-oil, catalyst Mo/Lempung, pyrolysis, Acacia mangium wood

Pirolisis Kulit Kayu Pinus Merkusii Menjadi Bio-Oil Menggunakan Katalis Cr/Lempung Cengar Febrian, Ramadhoni; Bahri, Syaiful; Khairat, Khairat
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 3, No 2 (2016): Wisuda Oktober Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Bio-oil is produced from biomass through pyrolysis. Then, potential biomass is bark of pine. Bark of pine merkusii can be processed into bio-oil by pyrolysis used Cr/clay catalyst. This research aims to produce bio-oil from bark of pine with Cr/clay catalyst as an alternative fuel, observing the effect of the ratio of catalyst Cr/clay weight to biomass, and observing the influence of Chromium (Cr) impregnation and characterizing physical and chemical characteristic of bio-oil. In the pyrolysis process, 50 grams of pine bark with -100 + 200 mesh, the Cr / clay catalyst with weight variation of the biomass are 3%, 5% and 7% and the variation of Chromium (Cr) impregnation on clay are 0%, 1%, 2% and 3%. And 500 ml of silinap was added to the pyrolysis reactor. Pyrolysis process occurred for 120 minutes at a 320o C and the stirring speed is about 300 rpm. This research resulted in the greatest yield on the use of Cr/clay catalysts 7% of weight to the biomass and 3% metal content is about 65.77%. Characteristics of physical properties was obtained 0.812 g / ml of density, 0.902 cSt of viscosity, 7.626 mg NaOH / gram samples of acidity and 31oC of flash point. While the chemical characteristics of the bio-oil was obtained from the analysis using Gas Chromatography-Mass Spectroscopy (GCMS) and it found several dominant chemical components such as 9,12-Octadecadienoyl chloride, Cyclohexane, 1-methyl-2-penthyl, Octadecanoic acid, 2-Pentene, 24.4-trimethyl and Cyclohexane, 3- (3,3-dimethylbutyl).Keywords: Bio-oil, pyrolysis, bark of pine merkusii, Cr/Clay catalyst

Pirolisis Kulit Kayu Pinus (Pinus Merkussi) Menjadi Bio-Oil Menggunakan Katalis NiMo/NZA Sari, Ranum Anggun; Bahri, Syaiful; Khairat, Khairat
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Availability of fosil fuel cell that is increasingly limited has already global issue in the world, especially Indonesia. This has an impact onrising extraction costs and selling prices to the public. In addition, the emissions produced by during fossil fuels had a devastating impact on the environment. One of the alternative energy to reduce fossil fuel is bio-oil produced from biomass through pyrolysis technology. Pine bark isa potensial biomass to be used as bio-oil material. Until now, this pine bark only regarded as wastes that pollute the environment. Thought pine bark can be used as a source of fuel, because the pine bark has a potential source of energy. The purpose of this study is to know the effect of the ratio impregnated metal of Ni and Mo on NZA catalyst and the ratio amount of catalyst on the yield of bio-oil produced, knowing the value of density, viscosity, acidity and a flash point of bio-oil as well as determine the chemical components in bio-oil by GC-MS method. Pyrolysis bio-oil begins to process the biomass size reduction (-60+80 mesh) and natural zeolite (-100+200 mesh). Metal Ni and Mo was impregnated into the zeolit to form a bimetallic catalyst NiMo/NZA. Then the catalyst was activated by calcination stage, oxidation and reduction pyrolysis using pine bark as much as 50 grams along with 500 ml silinap with variations developing of metal Ni and Mo to NZA without metal (0%), 1%, 2% and 3% b/b and weight variation of NiMo catalyst/NZA 3%, 6% and 9% of the biomass with a stirring speed of 300 rpm and temperature of 320 oC for 120 min. The highest yield of bio-oil obtained by the use of 3% catalyst NiMo/NZA with 6% of the amount of catalyst which is equal to 77,23%. From physic analysis conducted on bio-oil werw obtained: the density is 0,79 g/ml, the viscosity is 9,87 cSt, the acidity is 5,13 mg NaOH/g sample and the flash point 52 oC. Five (5) the dominant compound results of chemical analysis by GC-MS of the bio-oil from pine bark using 3% catalyst of NiMo/NZA with 6% the amount of catalyst: 2-Pentene (21,8%), Pentane (13,71%), 2-Hexene (8,98%), 1-Propene (7,08%) and 1-Pentene (5,03%).Keywords: bio-oil, catalyst NiMo/NZA and pyrolysis.

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