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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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Pengaruh Katalis Asam (H2SO4) dan Suhu Reaksi pada Reaksi Esterifikasi Minyak Biji Karet Mira Primasari, Orchidea Rachmaniah dan M. Rachimoellah, Fitri Yuliani, Mira Primasari, Orchidea
Jurnal Teknik Kimia Vol 3, No 1 (2008): JURNAL TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/jurnal_tekkim.v3i1.95

Abstract

Biodiesel productions, generally, use transesterification reaction with base as a catalyst. Thus reaction process will be need raw materials oils in high grade quality. Oils with high content of free fatty acids are not suitable for base-catalyzed transesterification reaction. Because of the difficulty of separation process for purify biodiesel or methyl ester from its mixture in the end of the processes. Rubber seed, until now, still underutilized specially in Indonesia which is has an abundant amount of rubber plantation. Rubber seed contain 40-50%-w of oil, which is potentially use as a raw material for biodiesel production. Use an edible oils, unexpensive materials would be minimized the biodiesel production cost in order to produce high quality of biodiesel with competitive market price. Biodiesel production process which is using rubber seed oil high free fatty acid content as a raw material should be decrease the free fatty acids level in to 2%-FFA orless via esterterification methode. Following with transesterification, afterwards. This research desiged to investigate the effects of catalyst amounts (H2SO4) and temperature reaction of esterification methode. Experiment results show that increasing on temperature reaction would be decresed free fatty acids content. 0,5%-w of acid catalyst amount decreased free fatty acids contents rapidly. There are 1,57% and 1,33%-FFA in 120 minute reaction time, 55 oC and 60oC temperature reaction respectively. For others amount of acid catalyst (0,25%, 1%, and 2%-w), thedecresed level of free acid content were work slowly. Respectively, 3,91; 3,16; and 2,62%-FFA for 0,25%, 1%, and 2%-w of acid catalyst amounts. Esterification reaction conditions: 60oC and 0,5%-w of H2SO4 given the higher FAME content. Keywords : biodiesel, acid-catalyzed transesterification, Hevea brasiliensis, rubber seed oil, basecatalyzed transesterification. 
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
ALGAE SPIRULINA SP. OIL EXTRACTION METHOD USING THE OSMOTIC AND PERCOLATION AND THE EFFECT ON EXTRACTABLE COMPONENTS Elfera Yosta R., Danang Harimurti W., Orchidea Rachmaniah,
Jurnal Teknik Kimia Vol 4, No 2 (2010): JURNAL TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/jurnal_tekkim.v4i2.124

Abstract

Alga dipandang sebagai bahan baku baru yang berpotensi menghasilkan minyak dengan jumlah yang cukup besar. Selain itu, minyak alga tidak bersaing sebagai komoditi pangan. Spirulina Sp. atau ganggang hijau-biru dipilih dikarenakan waktu panennya sangat singkat dan memiliki kandungan lipid cukup tinggi dibandingkan dengan jenis alga yang lain. Selain itu karakteristik kondisi lingkungan tempat hidup Spirulina Sp. sesuai dengan kondisi cuaca di Indonesia, yaitu pH cenderung basa, suhu 20-40oC. Metode osmotik dipilih mengingat Spirulina Sp. adalah makhluk hidup mikrokopis multi sel yang memiliki membran semipermiabel yang rentan terhadap perubahan tekanan osmotik. Asam klorida dipilih sebagai pelarut karena kedua jenis larutan diatas memiliki tekanan osmotik cukup tinggi sehingga dapat dengan mudah merusak membran semipermiabel yang ada. Metode perkolasi juga dipilih sebagai salah satu metode pembanding, dimana metode ini banyak digunakan sebagai metode rujukan untuk merecovery senyawa-senyawa atsiri bernilai tinggi dibidang farmasi.Hasil penelitian menunjukkan bahwa ekstraksi minyak alga dengan pelarut etanol (99,8%) (77,236%-berat) memberi yield minyak lebih besar dibandingkan dengan pelarut HCl 5 M (71,218%-berat). Semakin banyak volume pelarut yang digunakan, semakin lama waktu pengadukan, dan semakin tinggi molaritas larutan maka semakin meningkat perolehan yield minyak. Kadar air pada fase hidroalkoholik dan waktu perendaman mempengaruhi perolehan yield minyak untuk pelarut etanol (99,8%). Kadar air 37,63% pada fase hidroalkoholik memberi yield minyak sebesar 76,584%-berat.Jenis pelarut yang digunakan turut mempengaruhi komposisi komponen-komponen terekstrak, khususnya FA, MG, GD, dan TG, dan komponen zat warna Spirulina Sp. yang terekstrak.  Keywords :Alga; Ekstraksi; Osmotik; Perkolasi; Spirulina Sp.; Minyak alga. 
SEPARATION OF METALS FROM SPENT CATALYSTS WASTE BY BIOLEACHING PROCESS Sirin Fairus, Tria Liliandini, M.Febrian, Ronny Kurniawan,
Jurnal Teknik Kimia Vol 4, No 2 (2010): JURNAL TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/jurnal_tekkim.v4i2.126

Abstract

A kind of waste that hard to be treated is a metal containing solid waste. Leaching method is one thealternative waste treatment. But there still left an obstacle on this method, it is the difficulty to find theselective solvent for the type of certain metal that will separated. Bioleaching is one of the carry ablealternative waste treatments to overcome that obstacle. Bioleaching is a metal dissolving process orextraction from a sediment become dissolve form using microorganisms. On this method, it is not amust to use a selective solvent to extract metal. This research have general purpose to separate certainmetal contains from a solid waste by bioleaching method, and the special purpose on this research areto know influence of bioleaching time to the dissociated yield metal, and to know selectivity of themicroorganisms to the metal containing spent catalyst waste on bioleaching process. Aqua DM is usedas the solvent and this experiment varied spent catalysts as solid waste from several raw material (I, II,and III raw material), bioleaching time ( 5, 10, 15 days), and types of microorganisms (EscherichiaColi and Aspergillus niger), with amount of microorganisms (10% from the total work volume), andbioleaching temperature (37 oC). Metal concentration is used for the analysis on this research. Fromthe results of this research, it is known that the bioleaching time influences metal concentration inrafinat, the longer time of bioleaching, the bigger of the metal concentration. The best metal yield Ni(i.e: 1.35% b/b) was reached from raw material III. Using Aspergilus niger fungi within 15 days.Generally, the yield of Cu, Zn, and Ni on bioleaching process using Aspergillus niger fungi was betterthen those were gained by Escherichia coli, except CrKey Words : Bioleaching, Logam, Escherichia coli, Aspergillus
THE USE OF WILSON EQUATION, NRTL AND UNIQUAC IN PREDICTING VLE OF TERNARY SYSTEMS Yustia Wulandari, Agung Rasmito,
Jurnal Teknik Kimia Vol 4, No 2 (2010): JURNAL TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/jurnal_tekkim.v4i2.127

Abstract

There binary pairs of aceton-butanol, aseton-ethanol, n-butanol-ethanol and ternary pairs ofaceton-butanol-ethanol have been measured under atmospheric pressure. The equipment used forthis experimental work was the Modified Glass-Othmer Still. The analyses performed with aShimatzu gas chromatograph. Thermodynamic consistency of the observed binary VLE areconfirmed by the area test, which show that the experimental data of all of binary systems arethermodinamically consistent. The observed activity coefficients are correlated with the Wilson,NRTL dan UNIQUAC equations. The binary interaction parameters in each equation aredetermined by using the Gaussian technique, where the sum of squares of deviation in excessGibbs energy is minimized. The Wilson, NRTL dan UNIQUAC equation agree well with theexperimental data, except that the NRTL equation has second parameter different from theproposed value. The ternary VLE for aceton-butanol-ethanol system is calculated by using binaryinteraction parameter of Wilson, NRTL dan UNIQUAC obtained from three pairs binaryexperimental data. The ternary experimental data were also compared with those predicted byadopting the Wilson, NRTL dan UNIQUAC models. Based on these deviations, the Wilson modelseems to be the potential candidate to be used to predict the VLE ternary mixture for those system.Keywords : VLE, Wilson, NRTL, UNIQUAC
ANIMAL FEED MAKING FROM TUNA FISH WASTE WITH FERMENTATION PROCESS Anwar Zain and Mohammad, Nana Dyah Siswati,
Jurnal Teknik Kimia Vol 4, No 2 (2010): JURNAL TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/jurnal_tekkim.v4i2.128

Abstract

Fish waste from the fish canning industry if not managed can lead to pollution of the stinging smellof pollution, because the decay process of fish protein. Also can be a source of human infectious diseasesare transmitted by flies.Waste fish have protein content ranging roughly 51-55%, except as a source of protein with good aminoacids, fish waste is also a source of minerals and vitamins. Utilization of fish waste can be processed intofish meal, which in turn is used as animal feed mixtures such as poultry, pork and fish food.This research aims to make animal feed from fish waste, using a fermentation process with the help ofmicrobes rumenansia. In order to produce a nutritious animal feed additives required high as Lamtoroleaves, corn and bran, with proportions varying between a mixture of raw materials compared to microbialfermentation and different time also.The best results from the fermentation of fish waste into livestock feed use of ruminant bacterial proteincontent of 51.16%, carbohydrate content of 23.91 %, and 6-day fermentation time with a ratio of rawmaterials and the number of microbes (1:0,7). 
SULPHATE POTASIUM EXTRACTION FROM BANANA STEM ASH WITH BLEACHING EARTH WASTE LIQUID Edahwati, Luluk
Jurnal Teknik Kimia Vol 4, No 2 (2010): JURNAL TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/jurnal_tekkim.v4i2.129

Abstract

Sulphate potassium is one of the important chemistry compound for industrial at our country, usually for fertilizerindustry. Therefore, necessary done sulphate potassium maker watchfulness from various ingredient that containsulphate potassium compound. Among others with extract banana stem ash. Watchfulness methodology that is withmix banana stem ash with aquadest (20 gram ash/1 water litre) in temperature 100oc during 30 minutes and stirringrotation 300 rpm. Ash extract that got reaction with sulphuric acid found of liquid waste bleaching earth. Bleachingearth with certain rate of flow (5,10,15,20) ml/second is putted into. After achieved steady conditon, process iscontinued up to 15 minutes. Result is analyzed to determine sulphate potassium conversion. Based on watchfulnessresult that done, best condition is got in temperature 60oc with speed emits bleaching earth 10 ml/second, producesulphate potassium degree as big as 20184 mg/litres and conversion that got as big as 88,061%.Keyword : banana stem, bleaching earth
PHOSPHAT ACID AND FLOCCULAN ADDED IN JUICE SUGAR CRYSTAL PROCESS Suci Perwitasari, Dyah
Jurnal Teknik Kimia Vol 4, No 2 (2010): JURNAL TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/jurnal_tekkim.v4i2.130

Abstract

The level of the requirement would sugar increased continued each year, in line with thegrowth and the development of the inhabitants as well as technology in Indonesian. To overcomethis lack, a part from with did import sugar was also done by the increase in the sugar industrycame from palm juice sugar. Palm juice sugar was the only main raw material in the productionof crystal sugar for the moment. For produced clear palm juice with the better quality, then mustbe paid attention to by the age, the maturity, the kind, the freshness from the sugar cane croppersonally. The aim of this research was to look for the alternative to the replacement from theprocess sulfitasi that uptil now was worn the sugar factory and to know the optimal condition fromclear palm juice by seeing the dose floculan in accordance with the condition that was undertaken.The process of his research of being raw palm juice was increased lime milk until the alkalinecondition and was heated until the temperature 100 oC, After wards was added by use phosphateacid as the condition that was determined and floculan in accordance with the variable that wasundertaken. Further was bent, refined and analysed. Best results were obtained palm juice withthe increase in phosphat acid the dose 80 mg/l and without floculan that is 91.37 oS; whereas forthe analysis of the content phosphat, turbidy, the colour and the content of the lime were 31,8 mg/l,14,8 mg/l, 2749 ICU, 483 mg/l that is in the increase in the dose of phosphate acid 80 mg/l andfloculan 2 mg/l.Keywords :Phosphat acid, floculan, palm juice sugar.
ETANOL PRODUCTION FROM MENGKUDU FRUIT Indrati Utami, Lucky
Jurnal Teknik Kimia Vol 4, No 2 (2010): JURNAL TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/jurnal_tekkim.v4i2.131

Abstract

Mengkudu represent all purpose crop, there is many product that could be developed fromroot, bar, leaf, and also it’s fruit. The mengkudu’s fruit have carbohydrate content as much as 51,67gr. With the existence of the carbohydrate rate, it enables to be used to produce ethanol. The aim ofthis research is to determine the best condition process to make an ethanol from raw material ofmengkudu’s fruit. Ethanol yielded to be obtained heatedly from mengkudu’s fruit liquid by using HCL0,4 N in three neck gourd as hydrolysis process, so that we got the sugar rate equal to 8,23%. Afterthat can be made ferment media from sugar liquid result of the hydrolysis and enhanced by a startervolume at spanning : 4- 12%. Later fermented as according to variation time of between 24 until 72hours. The liquid result of the ferment dissociated by distillation, and the temperature maintenance for80 ºC. The biggest result of ethanol rate obtained when ferment 60 clock, addition of volume starter10% with ethanol rate = 6,24 %.Key words : Ferment , Hydrolysis, Mengkudu , Saccharomyces Cerevisiae, Ethano

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