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Partial Hydrogenation of Calophyllum Inophyllum Methyl Esters to Increase the Oxidation Stability Joelianingsih, Joelianingsih; Putra, P.; Hidayat, A.W.; Fajar, R.
Journal of Engineering and Technological Sciences Vol 47, No 5 (2015)
Publisher : ITB Journal Publisher, LPPM ITB

Calophyllum inophyllum methyl esters have a low oxidation stability value (5-6 h) caused by high amounts of polyunsaturated fatty acid methyl esters (FAME), especially methyl linoleate. Partial hydrogenation was done to reduce the number of polyunsaturated FAME to transform them into mono-unsaturated. This was performed at 6 bar and 900 rpm with Pd/Al2O3 solid catalyst in a reactor with a capacity of 1 liter. The research purpose was to learn the effects of reaction temperature (80; 100; 120Â°C) and time (1; 1.5; 2 h) on the FAME composition. The optimum condition of the experiment was obtained at 120Â°C for 1 h, with 15.47 h as the oxidation stability value, 17.8Â°C as the cloud point value, and 51.17 as the cetane number. Under this condition, the methyl linoleate content decreased by 59.89% w/w (from 21.869% to 8,770% w/w) and methyllinoleate hydrogenated into methyl elaidate. Meanwhile, the methyl linolenate content decreased by 85,37% w/w (from 0.205% to 0.030% w/w) and methyl linolenate hydrogenated into methyl linolelaidate. These results show that the research met the following standards: a minimum oxidation stability value of 10 h in accordance with the World Wide Fuel Charter (WWFC) 2009, a maximum cloud point value of 18Â°C and a minimum cetane number 51 in accordance with SNI 7182-2012. The physical properties values of the Calophyllum inophyllum methyl esters were predicted using the empirical equations.

(The Production Of Rolling Oil Lubricant Using Castor Oil And Chitosan Solution) Alamsyah, Rizal; -, Joelianingsih; Mitha Mala, Dheni
Warta Industri Hasil Pertanian Vol 26, No 01 (2009)
Publisher : Balai Besar Industri Agro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (5169.493 KB)

Rolling oil is one kind of the lubricants which is used for metal working especially for cold rolling mill (CRM), roll collant, roll oil and pickle oil.Mostly, lubricat based rolling oil was derived from mineral or synthetic oil where its source has been depleted. Castor oil has some advantages to be employed for lubricants or rolling oil based materials since it has high load wear index lubricity, and viscosity as well as low pour point. This research was aimed at investigating the production of rolling oil using castor oil with oxidation treatment. Chitosan was also used to know its effect on rolling oil characteristics. The method of rolling oil production was designed y adding NaHSO4 as catalyst into castor oil, dehydrating of castor oil at 200 C during three hour, cooling of castor oil at room temperature, dissolving buthylated hydroxy toluene (BHT), dehydrating oil (oxidation) at 100 C during 8 hours, addition of 1 %, 3 % and 5 % of chitosan solution into oil, and dissolving O-fenilfenol into oil with oxidation treatment showed better result in term of acid number, iodine number, viscosity, and density. The best result of experiments was showed for the oxidixed rolling oil with dehydrated treatment with 5 % chitosan aolution which has acid value 1,1 mg KOH/gr oil, iodine number 59,3 gr iod/100 gr oil, saponification value 196,9 mg KOH/g oil, viscisity 180, 6 cps, density 0,97 gr/ml. In coclusion higher chitosan concentration resulted lower acid and saponification value. On the Other hand higher chitosan concentration affected higher iodine number and viscosity.

(The Production Of Rolling Oil Lubricant Using Castor Oil And Chitosan Solution) Alamsyah, Rizal; -, Joelianingsih; Mitha Mala, Dheni
Warta Industri Hasil Pertanian Vol 26, No 01 (2009)
Publisher : Balai Besar Industri Agro

Rolling oil is one kind of the lubricants which is used for metal working especially for cold rolling mill (CRM), roll collant, roll oil and pickle oil.Mostly, lubricat based rolling oil was derived from mineral or synthetic oil where its source has been depleted. Castor oil has some advantages to be employed for lubricants or rolling oil based materials since it has high load wear index lubricity, and viscosity as well as low pour point. This research was aimed at investigating the production of rolling oil using castor oil with oxidation treatment. Chitosan was also used to know its effect on rolling oil characteristics. The method of rolling oil production was designed y adding NaHSO4 as catalyst into castor oil, dehydrating of castor oil at 200 C during three hour, cooling of castor oil at room temperature, dissolving buthylated hydroxy toluene (BHT), dehydrating oil (oxidation) at 100 C during 8 hours, addition of 1 %, 3 % and 5 % of chitosan solution into oil, and dissolving O-fenilfenol into oil with oxidation treatment showed better result in term of acid number, iodine number, viscosity, and density. The best result of experiments was showed for the oxidixed rolling oil with dehydrated treatment with 5 % chitosan aolution which has acid value 1,1 mg KOH/gr oil, iodine number 59,3 gr iod/100 gr oil, saponification value 196,9 mg KOH/g oil, viscisity 180, 6 cps, density 0,97 gr/ml. In coclusion higher chitosan concentration resulted lower acid and saponification value. On the Other hand higher chitosan concentration affected higher iodine number and viscosity.

Analisis Rasio Energi Daur Ulang Panas pada Produksi Biodiesel Secara Non-Katalitik Armansyah Halomoan Tambunan; . Furqon; . Joelianingsih; Tetsuya Araki; Hiroshi Nabetani
Jurnal Ilmu Pertanian Indonesia Vol. 17 No. 2 (2012): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (339.496 KB)

Energy consumption in non-catalytic biodiesel production is still high, and needs to be reduced to the optimum level. It can be accomplished by recirculating the heat being used in the process by using heat exchanger. The objective of this study is to analyze the energy ratio of the system as influenced by the heat recirculation through a heat exchanger. This experiment used a superheated methanol vapor method for non-catalytic biodiesel production. The study was started with the determination and calculation of physical and thermal properties of materials to be used (palm olein, methanol, and methyl ester), continued with the designing of the heat exchanger, the experiment itself, and the energy ratio analysis. The process was occured in semi-batch mode with 3 levels of methanol flow rate, i.e., 1.5, 3.0, and 4.5 mL/minute, at reaction temperature of 290 °C. The results show that heat recirculation by using heat exchanger can increase the energy ratio from 0.84 to 1.03, according to the definition that energy ratio is the ratio between energy content of the biodiesel to the total energi of the feedstock and the process energy. If the energy ratio is defined as the ratio between the increase in energy content of the biodiesel from its feedstock to the process energy, the energy ratio was found to be 7.85, 2.98, and 2.87 for the respective methanol flow rate of 1.5, 3.0, and 4.5 mL/min.

Partial Hydrogenation of Calophyllum Inophyllum Methyl Esters to Increase the Oxidation Stability Joelianingsih Joelianingsih; P. Putra; A.W. Hidayat; R. Fajar
Journal of Engineering and Technological Sciences Vol. 47 No. 5 (2015)
Publisher : Institute for Research and Community Services, Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/j.eng.technol.sci.2015.47.5.4

Calophyllum inophyllum methyl esters have a low oxidation stability value (5-6 h) caused by high amounts of polyunsaturated fatty acid methyl esters (FAME), especially methyl linoleate. Partial hydrogenation was done to reduce the number of polyunsaturated FAME to transform them into mono-unsaturated. This was performed at 6 bar and 900 rpm with Pd/Al2O3 solid catalyst in a reactor with a capacity of 1 liter. The research purpose was to learn the effects of reaction temperature (80; 100; 120°C) and time (1; 1.5; 2 h) on the FAME composition. The optimum condition of the experiment was obtained at 120°C for 1 h, with 15.47 h as the oxidation stability value, 17.8°C as the cloud point value, and 51.17 as the cetane number. Under this condition, the methyl linoleate content decreased by 59.89% w/w (from 21.869% to 8,770% w/w) and methyllinoleate hydrogenated into methyl elaidate. Meanwhile, the methyl linolenate content decreased by 85,37% w/w (from 0.205% to 0.030% w/w) and methyl linolenate hydrogenated into methyl linolelaidate. These results show that the research met the following standards: a minimum oxidation stability value of 10 h in accordance with the World Wide Fuel Charter (WWFC) 2009, a maximum cloud point value of 18°C and a minimum cetane number 51 in accordance with SNI 7182-2012. The physical properties values of the Calophyllum inophyllum methyl esters were predicted using the empirical equations.

Energy Harvesting from Sugarcane Bagasse Juice using Yeast Microbial Fuel Cell Technology Marcelinus Christwardana; Linda Aliffia Yoshi; J. Joelianingsih
Reaktor Volume 21 No. 2 June 2021
Publisher : Dept. of Chemical Engineering, Diponegoro University

This study demonstrates the feasibility of producing bioelectricity utilizing yeast microbial fuel cell (MFC) technology with sugarcane bagasse juice as a substrate. Yeast Saccharomyces cerevisiae was employed as a bio-catalyst in the production of electrical energy. Sugarcane bagasse juice can be used as a substrate in MFC yeast because of its relatively high sugar content. When yeast was used as a biocatalyst, and Yeast Extract, Peptone, D-Glucose (YPD) Medium was used as a substrate in the MFC in the acclimatization process, current density increased over time to reach 171.43 mA/m2 in closed circuit voltage (CCV), maximum power density (MPD) reached 13.38 mW/m2 after 21 days of the acclimatization process. When using sugarcane bagasse juice as a substrate, MPD reached 6.44 mW/m2 with a sugar concentration of about 5230 ppm. Whereas the sensitivity, maximum current density (Jmax), and apparent Michaelis-Menten constant (????????????????????) from the Michaelis-Menten plot were 0.01474 mA/(m2.ppm), 263.76 mA/m2, and 13594 ppm, respectively. These results indicate that bioelectricity can be produced from sugarcane bagasse juice by Saccharomyces cerevisiae.Keywords: biomass valorization, biofuel cell, acclimatization, maximum power density, Michaelis-Menten constant

Non-Catalytic Biodiesel Synthesis from Kemiri Sunan (Reutealis trisperma) in Semi-Batch Bubble Column Reactor J. Joelianingsih; Faisal Ramadhan Nur; Melani Eka Saputri; Is Sulistyati Purwaningsih
Reaktor Volume 21 No. 3 September 2021
Publisher : Dept. of Chemical Engineering, Diponegoro University

The Bubble Column Reactor (BCR) is intensive equipment used as a multiphase contactor and reactor in the chemical, biochemical, and petrochemical industries. BCR has some advantages include high mass and heat transfer rates, compactness, and low operating and maintenance costs. In this research, BCR was applied to produce biodiesel from Kemiri Sunan (Reutealis trisperma) Oil through non-catalytic and simultaneous esterification and transesterification reactions. Kemiri Sunan Oil was fed in the reactor and heated to a specific temperature. During the heating process, nitrogen gas was flowed to prevent oxidation. Liquid methanol flowed at some various flow rates through a vaporizer and superheater so that it has flowed into the reactor in the form of saturated steam (1 atm, 240 ºC). Experiments with variations in the methanol flow rate were carried out at a reaction temperature of 250 ºC, while experiments with various temperatures were carried out at a methanol flow rate of 2.5 mL/min. The best conditions were obtained at a flow rate of 2.5 mL min with a reaction temperature of 290 ºC. The production rate was 3.47 g/min with an acid number of 0.69 mg KOH/gr sample, and FAME content was 78.2% wt. These results indicate the simultaneous esterification and transesterification reaction in one reactor.

PERKEMBANGAN PROSES PEMBUATAN BIODIESEL SEBAGAI BAHAN BAKAR NABATI (BBN) Joelianingsih .; Armansyah H Tambunan; Hiroshi Nabetani; Yasuyuki Sagara; Kamaruddin Abdullah
Jurnal Keteknikan Pertanian Vol. 20 No. 3 (2006): Jurnal Keteknikan Pertanian
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.020.3.%p

ABSTRACT As energy dernands increase and fossil fuel reservas are limited, research is directed towards alternative renewable fluls. A potential diesel fuel substitusi is biodiesel, obtained from fatty acids methyl esters (FAME) and produced by the transesterfication reaction of triglyceride or free fatty acid (FFA) of vegetable oils with short-chain alcohol, mainly methanol. Most of the currently of alcohol. Although the removal of the excess alcohol can be easily achieved by distillation, however the removal of catlyst and the by-product formed from its reaction with the reactants is complicated while several methode for glycerol purification have been reported. The disadvantages resulting from the use of a catalyst and itsremoval from theproducts can beeliminated if a non-catalytic reaction of the vegetable oils with alcohol can be realized and a simpler and cheaper process can be developed.indonesia has the opportunity to expand oil palm and other plantations such as jatropha curcas (jarak pagar)in order to provide sufficient amount of crude oil for development of biodiesel industry. Keyword: biodiesel, vegetable oil, renewable source of energy, catalyst, non-catalytic, transesterfication Diterima: 6 April 2006; Disetujui: 19 Juli 2006

Prediksi Kualitas Biodiesel Berdasarkan Komposisi Asam Lemak Bahan Mentah (Minyak-lemak) Joelianingsih .; Armansyah H. Tambunan; Tatang H. Soerawidjaya; Yasuyuki Sagara; Kamaruddin Abdullah
Jurnal Keteknikan Pertanian Vol. 22 No. 1 (2008): Jurnal Keteknikan Pertanian
Publisher : PERTETA

Abstract The characteristics of biodiesel are similar to diesel fuels, and therefore biodiesel becomes a strong candidate to replace the diesel fuels if the need areses. Biodiesel standard- so called SNI 04-7182-2006 has been approved by the Indonesian National Standardization Agency (BSN). The basic fuel properties for biodiesel are influenced by the fatty acid composition of the feedstock such as the sensity, viscosity, cetane number, heating value and cloud point. Therefore, the value of these properties can be predicted from the fatty acids composition of the feedstock using the blending equations. This work uses pure component data for methyl palmitate, methyl stearate, methyl oleate, and methyl oleate to develop and test blending equations for the prediction of the basic fuel properties. The results from the blending equations are compared with literature values for biodiesel for a number of triglyceride sources such as palm and jatropha oils. Typical average errors are less than 10% for the density, cetane number and healting value. The blending equation for the viscosity and cloud point are suitable only for a speciefed biodiesel. Keywords: biodiesel, basic fuel properties, blending equation , SNI Diterima: 28 Mei 2007; Disetujui: 22 Agustus 20017

Tinjauan Perkembangan Proses Katalitik Heterogen dan Non-Katalitik untuk Produksi Biodiesel Wahyudin Wahyudin; Armansyah Halomoan Tambunan; Nanik Purwanti; Joelianingsih Joelianingsih; Hiroshi Nabetani
Jurnal Keteknikan Pertanian Vol. 6 No. 2 (2018): JURNAL KETEKNIKAN PERTANIAN
Publisher : PERTETA

AbstractBiodiesel is still expected to be an alternative fuel other than petroleum. Therefore, intensive research is being done by researchers in the world to develop biodiesel production process that is more efficient, economical and environmentally friendly. Among them is by developing a catalytic and non-catalytic process. The heterogeneous catalytic process is of particular concern with many promising results and is expected to address the current lack of homogeneous catalytic processes. In Indonesia, many natural catalyst sources have been investigated into potential heterogeneous catalyst. The non-catalytic process also provides a reasonably reliable process expectation of course with its various challenges. Both heterogeneous catalytic processes and non-catalytic processes are believed to be potential processes that can be applied in the near future. The development of the results and the challenges of these two processes, therefore, is reviewed in this work as an innovative biodiesel process technology research opportunity.AbstrakBiodiesel masih diharapkan menjadi bahan bakar alternatif selain dari minyak bumi. Oleh karenanya penelitian yang intensif tengah dilakukan para peneliti di dunia untuk mengembangkan proses produksi biodiesel yang lebih efisien, ekonomis dan ramah lingkungan. Diantaranya adalah dengan mengembangkan proses secara katalitik dan non-katalitik. Proses katalitik heterogen menjadi perhatian khusus dengan banyaknya hasil penelitian yang menjanjikan dan diharapkan dapat mengatasi kekurangan proses katalitik homogen saat ini. Di Indonesia berbagai sumber katalis alami telah diteliti untuk dijadikan katalis heterogen. Namun, proses non-katalitik juga memberikan harapan proses yang cukup bisa diandalkan tentu dengan berbagai tantangannya. Baik proses katalitik heterogen maupun proses non-katalitik diyakini sebagai proses potensial yang dapat diterapkan dalam waktu dekat ini. Oleh karena itu, perkembangan hasil dan berbagai tantangan dari kedua proses tersebut diulas dalam tinjauan ini sebagai peluang penelitian teknologi proses biodiesel yang inovatif.

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