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INDONESIA
Jurnal Teknik Kimia
Published by Universitas Pembangunan Nasional Veteran Jawa Timur
ISSN : 19780419     EISSN : 26558394     DOI : -
Core Subject : Science, Engineering,
Chemical Engineering, Chemistry & Bioengineering Chemistry
Jurnal Teknik kimia fokus pada proses perpindahan panas dan massa, material maju, teknik reaksi kimia, pengolahan dan pengelolaan limbah, biomassa dan energi, termodinamika, biokimia, elektrokimia, perancangan dan pengendalian proses, proses pencampuran dan pemisahan. Rung lingkup (Scope) Jurnal Teknik Kimia meliputi semua aspek yang berhubungan dengan bidang teknik kimia, ilmu kimia. dan semua proses reaksi kimia.
Arjuna Subject : -
Articles 274 Documents
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KINETIKA ADSORPSI WARNA LIMBAH TEKSTIL DENGAN ABU SEKAM PADI MENGGUNAKAN REAGEN TAWAS Cahyonugroho, Okik Hendriyanto
Jurnal Teknik Kimia Vol 1, No 2 (2007): JURNAL TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/jurnal_tekkim.v1i2.70

Abstract

Abu sekam padi (ASP) mengandung lebih dari 90 % silika (SiO2). Silika merupakan suatusenyawa yang dapat dipakai sebagai adsorben. Al2(SO4)3 merupakan senyawa yang menyebabkandestabilisasi didalam air sehingga dapat berfungsi sebagai zat yang menyebabkan terjadinyaikatan hidrogen. Pada limbah cair tekstil, zat warna yang terlarut didalam air dapat diserap olehASP. Agar proses adsorpsi berlangsung cepat maka perlu ditambahkan reagen.Penelitian ini bertujuan untuk mengetahui efektivitas ASP dalam menyerap warna dalamlimbah tekstil. Hal ini dapat ditunjukkan oleh kinetika adsorpsi dari ASP tersebut. Metodepenelitian mengunakan regresi linier untuk menentukan konstanta adsorpsinya. Variabel yangdiperiksa adalah volume reagen, berat ASP dan waktu pengadukan yang digunakan untukmenghitung konstanta laju adsorpsi.Hasil penelitian menunjukkan bahwa semakin besar berat ASP, semakin besar konstantaadsorpsi dan semakin besar volume reagen semakin besar konstanta adsorpsi. Efektifitas adsorpsiditunjukkan oleh konstanta adsorpsi yang paling tinggi yaitu pada volume reagen yang terbanyak(7,5ml ) dan penambahan ASP paling banyak (20 gr )Kata kunci : abu sekam padi, adsorpsi, tawas, warna
PEMISAHAN LOGAM MERKURI DENGAN CARA ELEKTRODIALISIS Redjeki, Sri
Jurnal Teknik Kimia Vol 1, No 2 (2007): JURNAL TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/jurnal_tekkim.v1i2.71

Abstract

Pencemaran merkuri di perairan kebanyakan disebabkan oleh limbah industri, dimanakandungan merkurinya melebihi standar yang telah ditetapkan. Menurut standar Abidin 1997, FDA, danWHO 1990, kadar merkuri yang ditoleransi adalah 15 µg/liter dalam darah, 3.5 µg/liter dalam ASI, 1 ppmdalam ikan dan makanan, 2 ppm dalam kuku, dan 4 ppm dalam urine, (Rahem, 2004), 2 hingga 7 ppmpada rambut. Normalnya, kadar merkuri dalam tubuh adalah dibawah 0.1 ppm. Dan seharusnya, nilaiambang batas untuk merkuri di perairan hanya 0.005 ppm. (http:/www.pdpersi.co.id).Limbah merkuri yang dibuang inilah yang lebih berbahaya, sebab setelah menjadi limbahdan merkuri tersebut masuk ke perairan, maka merkuri dengan mudah berikatan dengan klor dalam airlaut. Ikatan dengan klor yang disebut merkuri inorganik itu akan mudah masuk kedalam plankton dandapat berpindah ke biota laut lain, lalu akan tertransformasi menjadi merkuri organik (metil merkuri),yang dalam bentuk inilah merkuri lebih mudah diserap oleh tubuh. (http:/www.jawapos.co.id)Teknologi pemisahan dengan membran sendiri telah membuat kemajuan yang pesat dalamtahun-tahun belakangan ini. Proses elektrodialisis menghilangkan ion-ion dari air dengan mendorongnyamelewati membran dengan arus DC. Teknologi ini dipilih karena biayanya yang murah, pemakaian energiyang rendah, sederhana, dan ramah lingkungan, tidak memerlukan bahan-bahan tambahan sepertipengekstrak, juga tidak memerlukan energi (panas), yang juga sangat sensitif terhadap produk-produktertentu.Dengan pengurangan konsentrasi ( % konversi) yang cukup besar, yaitu 88.5197 % tersebut, makamodul Elektrodialisis mampu mengurangi konsentrasi diluat dengan cukup baik. Untuk konsentrasi umpan10 ppm, 20ppm, 30 ppm, dan 40 ppm, konversi terbesar adalah pada 12 Volt, dengan keberhasilanpengurangan konsentrasi diluat hingga sebesar 88.5197 % yaitu pada konsentrasi umpan 40 ppm.Kata Kunci : Mecuri, elektrodialisis
ALTERNATIVE ENERGY BIOGAS FROM CHOCOLATE PEEL Mardhita Arlindawati, Sri redjeki, Dias Asmoro Putra,
Jurnal Teknik Kimia Vol 6, No 1 (2011): JURNAL TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/jurnal_tekkim.v6i1.81

Abstract

The development of alternative energy fuel technology at present many are produced from biologicalresources, eg the manufacture of biodiesel and biodiesel as a fuel substitute for gasoline. This aims to obtainbiogas that can be used as alternative energy and find operating conditions that produce appropriate levelsof CH4 in the standard Indonesian. The first stage is done by preparing 1 liter of raw materials ie brown rindand water are then mixed with a starter (cow dung) 10% of the volume of raw materials and the addition ofyeast and grass after it is mixed until blended. Then put into containers / bottles that have been fitted hose,water manometer, and the gas holder. The research was done in stages with the conditions that you run.Variables that run is a comparison of raw material (1:1; 1:1.5; 1:2; 1.5:1; 2:1), observation time (5 days, 10days, 15 days, 20 days, 25 days , 30 days), and the variable addition of grass (50 gr, 100 gr, 150 gr, 200 gr).From the results of this study found the greatest level of 74.22% in comparison 1 (water): 1.5 (brown skin)with the addition of 150 g of grass while low levels of 60.04% in comparison 2 (water): 1 (brown skin ) withthe addition of 200 g of grass, the results of this study meets the National Standards of Indonesia.Key words: Biogas, grass, yeast
KOEFISIEN PERPINDAHAN MASSA NATRIUM BENZOAT DENGAN AIR DALAM KOLOM ISIAN Widodo, L.Urip
Jurnal Teknik Kimia Vol 3, No 2 (2009): JURNAL TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/jurnal_tekkim.v3i2.108

Abstract

Solid liquid mass transfer is important and wide application in many kind of chemical engineering process which followed by chemical reaction or non chemical reaction like solution, distillation and extraction processes. The research is to find the mass transfer coefficient between sodium benzoate with water on the fixed bed ( pipe circulation system) at the height of the bed as follows:3 cm; 4cm; 5cm; 7cm; 9cm and the flow rate as follows : 4.29cm  3/second; 5.3cm3 /second;6.16cm3/second; 7.62cm3/second; 9.05cm3 /second. With 3.2cm fix coulomb diameter and the particle diameter of 0.22mm sodium benzoate. Reside,the objective of this research was to find the mathematic model wich is influenced by the variable above used as general application especially for designing the equipment. By using the non lenear programe with all variables simultaneously found the equation model Key word: fixed bed; mass transfer coefficient; sodium benzoate;water. 
CITRONELLAL FROM CITRONELLA OIL BY WAY OF VARYING THE MIXING VELOCITIES AND THE ADDITIONS OF SODIUM BISULFITE Muyassaroh, Muyassaroh
Jurnal Teknik Kimia Vol 6, No 1 (2011): JURNAL TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/jurnal_tekkim.v6i1.82

Abstract

At present the efforts to develop the cultivation of citronella oil has been given special attentionby the Indonesian Government. From various kinds of volatile crop kinds, one that is potential to bedeveloped is fragrant lemon grass. The fragrant lemon crops, fragnant lemongrass, which is a grasscrop which belongs to the group called Cymbogon nardus, is one that has great potensial to bedeveloped, The Technology used to produce volatile oil consist of 3 methods: pressing, solventextraction, and distillation. This research aims is to isolation Citronellal from Citronella Oil. In thisresearch the method used was refining the vapour and the water, followed by isolating citronellal fromcitronella oil and adding natrium bisulfite solution. This addition was aimed at acquiring the maximumlevel of citronellal that could be used as an active material for termiside or bakterial medicines. Theresearch result showed that the best quality of citronella was acquired when the Natrium Bisulfiteaddition was 20 gram, and the mixing velocity 150 rpm, producing 40.26% level of geraniol with adensity of 0,8867 gram/ml.Key words: Isolation, Natrium Bisulfite, Cymbopogan Winterianus, Sitronellal
ABSORPTION CO2 GAS USING MONOETHANOLAMINE Ricky Priambodo2), Sylvia Purnomo3), Hermawan Sutanto4), Wentalia Widjajanti5), Endang Srihari 1) ,
Jurnal Teknik Kimia Vol 6, No 1 (2011): JURNAL TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/jurnal_tekkim.v6i1.83

Abstract

The air on an area of solid industry, having a level pollution that high . it is muchcaused the process of combustion done by most of the industry , whereby on the process ofcombustion will be produced a gas of dioxide carbon ( CO2 ) that edangers . Hence , requireda method to depress figures pollution resulting from the womb overgrowth CO2 in the air the ,one of them is with the process of absorption .CO2 absorption process usingmonoethanolamine (MEA) performed in a packed column absorber aims to determine the priceof overall volumetric mass transfer coefficient of the gas phase to the variable operation andknow the value of the interfacial area per unit volume packing (a) of the price of the coefficientvolumetric mass transfer. CO2 gas flowing to the packed column using MEA as a solvent. Theresults are overall volumetric mass transfer coefficient of the gas phase, KGa the greater therate of CO2 gas at a constant flow rate of MEA and its getting bigger. Likewise, under the sameconditions, the price of interfacial area per unit volume will increase packing. But at aconstant rate of MEA with greater gas flow rate of CO2 will cause the overall mass transfercoefficient of the gas phase, KGa decreases. While at the greater concentration of MEAsolution will cause the KGa is increasing. The interfacial area per unit volume packing is notaffected by changes in gas flow rate and concentration of MEA.Key words: Absorption of CO2,, Monoethanolamine, overall volumetric mass transfercoefficient of gas phase, interfacial area per unit volume packing
ANALISA TRANSFER MASSA DISERTAI REAKSI KIMIA PADA Kusnaryo, Radya Purna Wijaya, Ali Altway,
Jurnal Teknik Kimia Vol 6, No 1 (2011): JURNAL TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/jurnal_tekkim.v6i1.85

Abstract

The aim of this research is to study mass transfer in CO2 absorptions a packed column for nonisothermal reversible reactions. The study was developed experimental and simulation co2 with air andpotassium carbonate solution is the matter used in this research.The arrangement counter current packed column to which a CO2 – air mixture flow is feed from the bottomand potassium carbon from the top of column.The work of simulation developed with microscopic mass and energy balance in column.The effect of flow absorbent and K2CO3 concentration is study do to percent CO2 removal. The results is;in range flow 3-5 l/mm have 10 % diviasi and range flow : 5-7 l/mnt was have deviasi in range 10-30 %Key words :mass transfer, absorption, non-isothermal, packed column
PENGARUH METODE PENCUCIAN PADA PEMBUATAN BIODIESEL DARI MINYA JARAK PAGAR Muharto, Pramudita R.A , Adhy Ma, Mahfud,
Jurnal Teknik Kimia Vol 3, No 2 (2009): JURNAL TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/jurnal_tekkim.v3i2.109

Abstract

The aims of this study is to know the effect of washing method in quality of biodiesel obtained from Jatropha curcas oil through transesterification process and to find out the chemical and physical properties of biodiesel that appropriate with ASTM standard 6751. The operating variables are : washing methods (aeration, spray and agitation); time of washing (0; 0,5; 1; 2 hours) The experiment conducted in 1 liter round bottom flask equipped with waterbath and temperature controlled. Firstly, a certain quantity of Jatropha curcas oil, methanol, and KOH catalysts ared determined. Then, KOH catalyst is diluted into methanol and introduce to reactor containing 500 ml jathropa oil. The tempearture was fixed at 60oC and the agitaion 200 rpm. The reaction transesterification process held during 1 hour. The Product of reaction is cooled untill two layers are formed. Upper layer is methyl esther of fatty acid and lower layer is glycerol. After that, upper layer is separated from lower layer and wash with pure water according to the operating variabels. The methyl ester obtained is characterized to obtain some physical properties at PT Pertamina UPPS V Laboratory. The results shows that the methods of washing not significanly influence, but the time of washing have a sligtly effect in properties of Biodiesel.  Key words :Biodiesel, Washing, Jatropha curcas oil 
PROSES PERENGKAHAN ASAM OLEAT BASIS MINYAK SAWIT MENJADI FRAKSI GASOLINE SYAHRIR, IRMAWATI
Jurnal Teknik Kimia Vol 3, No 2 (2009): JURNAL TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/jurnal_tekkim.v3i2.111

Abstract

Many kinds of new energy resources which are renewable and dependable come from various kinds of vegetable oil, thus it can substitute petroleum oil which people usually use.Oil palm oil is quite advantageous to be used as an alternative energy resources in Indonesia, since Indonesia is the world’s second largest producer of oil palm oil. Fuel made from oil palm oil has been researched and is more friendly to environment, because it has less polution potential when used, since it’s free from sulphur andnitrogen. Oil palm oil has long hydrocarbon chain which makes it possible to be used as vegetable fuel.The aim of this research is : to learn the influence of temperature and flow velocity of N2 gas on catalytic splitting of oil palm oil-based oleat acid into kerosene fraction.Spliting process of oil palm oil-based oleat acid is done in steady woodpile micro reactor at varioustemperatures and flow velocities of feed at 1 atm pressure. The result of the splitting process is analyzed with FID chromatography gas with Q poraplot column type, for liquid phase product. Research is done by heating  oleat acid in feed tank until 360°C temperature and reactor at 370-500°C temperature, and N2 gas is flowed into tank as carrier gas with 90-180 ml/minute flow velocity. Oleat acid steam and N2  gas flow into steady woodpilereactor which is coated with heater element and is filled with 0.6 gram catalyst. Spitting reaction is done for 75minutes. Bound time limit for kerosene fraction as shown by chromatogram is 12.6-17.5 minutes, anaylisis result for commercial kerosene for 450°C temperature and flow velocity of N2 gas 155.28 ml/minutes from fractionarea percentage chromatogram, kerosene fraction is 27.2645%.  Keywords: palm oil, kerosene fraction, fixed reactor. 
ANALISA TRANSFER MASSA DISERTAI REAKSI KIMIA PADA ABSORPSI CO2 Kusnaryo, Radya Purna Wijaya, Ali Altway,
Jurnal Teknik Kimia Vol 2, No 2 (2008): JURNAL TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/jurnal_tekkim.v2i2.94

Abstract

The aim of this research is to study mass transfer in CO2 absorptions a packed column for nonisothermal reversible reactions. The study was developed experimental and simulation co2 with air andpotassium carbonate solution is the matter used in this research.The arrangement counter current packed column to which a CO2 – air mixture flow is feed from the bottomand potassium carbon from the top of column.The work of simulation developed with microscopic mass and energy balance in column.The effect of flow absorbent and K2CO3 concentration is study do to percent CO2 removal. The results is;in range flow 3-5 l/mm have 10 % diviasi and range flow : 5-7 l/mnt was have deviasi in range 10-30 %Key words :mass transfer, absorption, non-isothermal, packed column

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