Judul Karya Ilmiah (Proceeding): Zeolite/magnetite composites as catalysts in the synthesis of methyl ester (MES) from cooking oil. Any further distribution of this work must bear attribution to the author(s) and the work title, journal citation, and DOI. The 7th International Seminar on New Paradigm and Innovation in Natural Sciences and its Application (ISNPINSA-7) is the annual conference organized by the Faculty of Science and Mathematics (FSM) Diponegoro University and has been successfully held since 2011.
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Association of MTHFR polymorphism and periodontitis ’ severity in Indonesian males
Introduction
Lipid production from tapioca wastewater by culture of Scenedesmus sp. with simultaneous BOD, COD and nitrogen
本语に切り直える切换为简体中文切换为繁体中文Русскийязык 沸石/磁铁矿复合材料作为催化剂，通过复合沸石/磁铁矿从食用油合成甲酯（MES）（会议论文）。食用油甲酯（MES）合成催化剂的研究已经开展。
In this study, the natural magnetite was extracted from the iron sand of the marina beach of Semarang and ground by means of high energy milling (HEM) with a ball:magnetite ratio: 1:1. The preparation of methyl ester was catalyzed by a zeolite/magnetite composite through a transeserification reaction. The variation of the catalyst concentration (w/v and 10% per feed volume) was investigated. The reaction product is a mixture of methyl olein (MES), methyl palmitic acid (MES) and methyl stearic acid (MES).
The characteristic product of this research includes density, viscosity, acid number and iodine number that meet the SNI standard. Acid numbers Catalyst concentration Edible oil Feed volume Iodine number Methyl esters Natural magnetites Natural zeolites. This research is financially supported by funding in addition to APBN DPA SUKPA LPPM of Diponegoro University, fiscal year 2017.
Highly active alumina-supported Cs-Zr mixed oxide catalysts for low-temperature transesterification of waste cooking oil. Evaluation of the optimum operating parameters of biodiesel production process from soybean oil using the Li TiO catalyst2 3. Cited 30 times http://www.elsevier.com/wps/find/journaldescription.cws_home/715607/description#description. Investigation of heterogeneous solid acid catalyst performance on low grade feedstocks for biodiesel production: A review.
本 语 に 电影 Simpl Гадиләштерелгән Кытай киноларына традицион Кытай Русси таалына күчү.
Journal of Physics: Conference Series
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Zeolite/magnetite composites as catalysts on the Synthesis of Methyl Esters (MES) from cooking oil
Adi Darmawan 1 , Sriyanti 1 , Wuri Cahyani 1 , Hendri Widyandari 2
- Experimental Method 1. Materials
- Results and Discussions
The use of homogeneous catalysts has a disadvantage which is the difficulty in separating the methyl ester products. The different ratios of zeolite:magnetiteratio were and 4:1. Next step, add aquadest to the mixture and stir on a magnetic stirrer at room temperature at 1200 rpm. Based on GC-MS analysis, it is known that methyl ester compounds are produced in this transesterification reaction.
Methyl ester of transesterification product without catalyst produces methyl-oleic acid/9-octadecanoic acid (m/z = 296) compound which is the highest peak fragmentation compound, followed by methyl palmitic/hexadecanoic acid (m/z = 270) and methyl stearic/octadecanoic acid ( m/z = 270), meanwhile the use of concentration 1% ZM (zeolite/magnetite composite) catalyst led the methyl Palmitate (m/z = 270) as the highest peak fragmentation compound followed by methyl Oleic (m/z = 296 ) ). 4 shows the efficiency of the transesterification reaction to yield methyl ester strongly depends on the catalyst amount, therefore increasing the catalyst amount will increase the yield percentage. However, the use of zeolite/magnetite composite catalyst in large quantities is less effective, precisely because the content of water in methyl ester product.
Mansir [19] reveals that catalytic conversion of triglycerides to biodiesel/methyl ester involves the use of catalyst, which lowers the activation energy and accelerates the reaction. It can therefore be determined whether the methyl ester is possible as a fuel substitute or not. 5 can observe the effect of zeolite/magnetite catalyst concentration on the density of methyl ester.
The viscosity of methyl ester, often referred to as kinematic viscosity, is the value of methyl ester syrup as a fuel at 40oC. The role of the catalyst in influencing viscosity properties has a tendency similar to that of methyl ester density. The acid number of methyl ester as a product of transesterification using different catalysts is shown in Figure 7.
The iodine number of methyl ester as a product of transesterification using different catalysts is shown in Figure 8. The higher the iodine number, the higher the number of double-bonded fatty acids contained in the methyl ester. The influence of the increase of methyl ester unsaturation can cause CO2 gas to increase the degree of unsaturation associated with the iodine number.
If the methyl ester were to be used as biofuel, then the number of iodine must. Production of methyl ester was catalyzed by zeolite/magnetite composite through transesterification reaction using variation of catalyst concentration and 10% (w/v) produces a mixture of methyl oleic acid (MES), palmitic acid (MES) and stearic acid (MES).
