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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 7 Documents
 1 
Search results for , issue "Vol 3, No 2 (2009): JURNAL TEKNIK KIMIA" : 7 Documents clear
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. 
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. 
SIMULASI ALIRAN GAS-SOLID-LIQUID DALAM BIOREATOR MEMBRAN TERENDAM Endah Palupi, Aisyah
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.v3i2.107

Abstract

Hydrodynamics characteristic for the mixing of gas-solid-liquid in membrane bioreactorsubmerged (MBRs) and its influence on mass transfer was studied computationally at various solid concentration, incoming gas rate, and the baffle distance. Computational method was conducted by using software GAMBIT 2.1.6. for the making of the grid which represents the calculation domain and conduct the simulation using CFD software FLUENT commercial code 6.2.16. The calculation result was recorded after the iteration reach the certain convergence level.Multiphase flow in reactor was simulated with mixture model, while to model the turbulence characteristic of the flow standard k-ε model was used. The geometric system studied is bioreactor in the form of box with flat bottom, 2 baffles, submerged hollow fiber membrane and air passage at the bottom of the reactor. For the membrane modeling, it is used two approachesthat is membrane as black box and membrane as porous media. The liquid used is water, and the solid is activated sludge, and air acts as gas phase. The result indicates that gas-solid-liquid system with the nearest baffle location from the membrane cause, the liquid dispersion process goes faster, so that fluid in the tank can be mixed perfectly and it can increase the gas-liquid mass transfer rate and the flux at MBRs.The increase of the solid concentration does not significantly affect the change of gasliquid mass transfer rate and flux through the membrane, but the increase of air flow rate can increase the gas-liquid mass transfer and the flux. Porous media approach give the prediction of the gas hold up distribution more over all than black box approach. The position of baffle 9 cm from tank wall is the best position viewed from the balance between the of air flow with the circulating fluid flow. Considered from the solid distribution, double inlet MBRs is better compared to that of single inlet. Flux obtained does not show significant difference. From both approaches of the membrane model, membrane model as porous media give the simulation results closer to the experimental data.Keyword:MBRs, hydrodynamic, simulation CFD, gas-solid-liquid
PEMBUATAN VIRGIN COCONUT OIL DENGAN METODE PENGGARAMAN SUSILOWATI, SUSILOWATI
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.v3i2.113

Abstract

Palm Oil represent oil of vegetation yielded from coconut krenel. Pursuant to sour content of fatpalm oil is classified into sour oil of laurat. Because the sour content laurat is biggest of ( 44 – 52%)compared to acid of other fat. Virgin Coconut Oil represent palm oil of made purification from flesh of fresh coconut processed without warm-up, so that the important content in oil remain to be defensible. Method of Research run by enhancedly salt CaCOFrom result of research indicate that the best condition got at an addition of salt of CaCO3 equal to 4 gramin day with amount of oil which got as much 69,907 gram with acid contents of laurat equal to 46,23 ( 0,1,2,3,4 gram) into cream of coconut mink 200 gram,then swirled and hushed during ( 2,3,4,5,6 day). Afterwards the oil taken and analysed the sour content of laurat.Keyword: VCO (Virgin Coconut Oil), Salting method
PROTEKSI KATODIK DENGAN ANODA TUMBAL SEBAGAI PENGENDALIAN KOROSI BAJA DALAM LINGKUNGAN AQUEOUS UTAMI, ISNI
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.v3i2.112

Abstract

Cathodic Protection is one of the method to Control Corrosion rate thermodynamically by applying steel as cathode. Application of this methode is by flow the DC current through electrolite to steel so that potential interface between steel and electrolite goes to immun area or until paricular value which corrosion speed allowed (minimum).Cathodic Protection using sacrificial anode methode was researched in electrochemistry way.Experiment was done to AISI SAE 1018 steel in NaCl environtment 3.5% within 168 to 840 hours using sacrificial anode Al and Zn.From analysis data using mass loss methode, Al anode able to decrease steel corrosion speed untill 82% and Zn for 50. %Keyward :Cathodic protection, sacrificial anode
PEMBUATAN EKOSEMEN DARI SAMPAH ORGANIK Rubin Nanda 2) dan Riant Anggraini 2), Nana Dyah Siswati,
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.v3i2.381

Abstract

The Huge volume of urban garbage despite limited space of garbage dump and inappropriate handling have become complicated and never ended problem. Helped to these issue, the research on Forming Ecocement from organic garbage was carried out. Ecocement was made from the mixture of the ash of organic garbage and limestone. The ashing was started by putting up the dry leaves and branches and some anorganic garbage (i.e paper) in pirolisis reactor, heated at temperatures 100, 150, 200, 250, 300 (oC). The resulted ash was mixed with limestone at (60:40) ; (55:45) ; (50:50) ; (45:55) ; (40:60) (%) ratio and blended with water. Next, the mixture was heated in a temperature of 900 oC for 1 hour. The ash analysis from the pirolisis process indicated that the best ash to produce cement was one that was heated in the temperature of 300 oC in the composition of CaO = 200.591,8 ppm SiO2 = 160.020, 8 ppm Al2O3 = 56.800,9 ppm dan Fe2O3 = 5.510,6 ppm, while the best ratio of ash : lime stone is 55 % : 45 % in the composition of CaO=60,8 % , SiO2 = 16,3 % , Al2O3 = 4,8 %, Fe2O3 = 0,3%. The resulted cement stand the tensile strengt 72,6 kg/cm2, min, in 7 days stored (standard  grade of the tensile strengt 150 kg/cm2, min, in 7 days stored). Key words : Ecocement, Ash of Organik Garbage, Lime Stone.

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