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Produksi Biodisel Berbasis Minyak Nabati Menggunakan Aspen HYSYS Firda Dimawarnita; Afifah Nur Arfiana; Sri Mursidah; Syarifah Rohana Maghfiroh; Prayoga Suryadarma
Jurnal Teknologi Industri Pertanian Vol. 31 No. 1 (2021): Jurnal Teknologi Industri Pertanian
Publisher : Department of Agroindustrial Technology, Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24961/j.tek.ind.pert.2021.31.1.98

Abstract

Biodiesel is a mono-alkyl ester derived from fatty acids that produced from vegetable oil or animal fat. It is known to be environmentally friendly, does not pollute the air, easily biodegradable, and can be renewed. Therefore, biodiesel has great prospects to be developed in overcoming the limited oil production. Esterification of fatty acids contained in vegetable oil is one way to produce biodiesel. Then, transesterification process separates glycerin from vegetable oil. Based on SNI 7182: 2015, the minimum yield standard for biodiesel is 96.5%. That high yield standard is a challenge in designing the biodiesel production process. In addition, the yield optimization process generally inflicts higher costs and energy. Therefore we need a biodiesel production process design for optimization. Optimization process must consider the composition of the material, the type of reaction, the type of reactor, and the material stream in order to produce the higher yield of biodiesel. This paper aims to optimize biodiesel production through process simulation. The expected biodiesel product is methyl oleate (C19H36O2) with triolein (C57H104O6) as feed. Simulations were carried out using the HYSYS software for three different scenarios. The simulation results are expected to provide an overview of the design of the biodiesel production process that can meet the yield standard and energy efficiency. Based on the three simulated scenarios, the 3rd scenario was chosen as the best biodiesel production process with a yield of 96.5%. In addition, the heat exchanger is used to help reduce the energy requirement from outside the system. [Keywords: biodiesel, production optimization, vegetable oil, hysys
Design and Build of a Multifunctional Portable Fertilizer Zunanik Mufidah; Sabar Sabar; Bagus Hermanto; Agung Cahyono; Adi Mas Sulton; Intan Avionita; Sujatmiko Sujatmiko; Sri Mursidah
Teknotan: Jurnal Industri Teknologi Pertanian Vol 17, No 2 (2023): TEKNOTAN, Agustus 2023
Publisher : Fakultas Teknologi Industri Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/jt.vol17n2.3

Abstract

Pangestu Farmer Group is a farming group in Pandanrejo Village, Batu Regency, that has high-quality sweet corn as a strategic asset with often fluctuating yields. Consequently, the market demand cannot be met. The main problem of fluctuations in corn yields is due to improper fertilization methods. Applying liquid fertilizer during the rainy season can result in nutrients being washed away by rainwater, but when granular fertilization is used, this results in increased costs and labour. A solution is needed to solve this problem so that the fertilization process is correct, and the timing of fertilization and labour costs can be reduced. Therefore, a portable fertilizing technology based on spring valves is needed. The goal is to develop and manufacture a valve spring-based portable fertilizer that can increase the effectiveness and efficiency of the fertilization process. The comparison of type 1 and type 2 fertilizers lies in the raw material used. Commercially available hand sprayer for comparison in design. Ergonomic analyses are also considered in the design of the fertilizer, both in terms of user safety and comfort. The method in this study is to design tools with power and ergonomic calculations, manufacture tools at Sahabat Teknik Workshop, and conduct tests at Brawijaya University's Agricultural Power and Machinery Laboratory. The test results for portable fertilizer types 1 and 2 show great advantages, namely, increase in working capacity 20 times to 1.2 ha/hour, reduce the number of workers from 7 people/ha to 5 people/ha, reduce operating time, reduce labour costs and increase farmers' income by up to 57, 72%/year.