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All Journal Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Chemistry Indonesian Journal of Chemical Research
Artha, Ulfa Dwi
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Biochemistry, Genetics & Molecular Biology Chemistry Engineering Environmental Science

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Prarancangan Pabrik Propilen Glikol Dari Gliserol Dengan Disain Alat Utama Reaktor Hidrogenasi Artha, Ulfa Dwi; Fadli, Ahmad
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 8 (2021): Edisi 2 Juli s/d Desember 2021
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Propylene glycol or 1,2-propadienol is an organic compound which has low toxicity and good formulation properties. Propylene glycol can be used as a preservative or solvent in the food industry, softener or moisturizer in the cosmetic industry, drug formulas in the pharmaceutical industry, additives that function as viscosity and color stabilizers in the paint industry, and others. Application of propylene glycol is vast, so that the demand for propylene glycol increases from year to year. However, until now, all propylene glycol needs in Indonesia still rely on imports. Therefore, it is necessary to establish a propylene glycol factory in Indonesia. The pre-design of this plant is carried out in several steps, namely collecting data sources to support the establishment of the plant, calculating mass and energy balances, calculating heat and mass exchange networks, calculating and designing hydrogenation reactors and their supporting accessories, and economic analysis. In the pre-design of this plant, a reactor was designed in the form of a hydrogenation reactor which functions as a reaction site for acetol with hydrogen gas. The type of reactor used is a fixed bed multitube reactor with a temperature of 300 ° C and a pressure of 14 bar. The hydrogenation reactor has 48 tubes, 5,0627 m high, 0,4382 m outside diameter, and uses skirt support.Keywords: Propylene glycol, glycerol, hydrogenation reactor, economic analysis
Biosurfactant Production from Pseudomonas aeruginosa ATCC27853 with Carbon Source from Crude Palm Oil for Oil Recovery Amraini, Said Zul; Muria, Sri Rezeki; Bahruddin, Bahruddin; HS, Irdoni; Artha, Ulfa Dwi; Susanto, Reno
Indonesian Journal of Chemical Research Vol 10 No 1 (2022): Edition for May 2022
Publisher : Jurusan Kimia, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ijcr.2022.10-sai

Abstract

Biosurfactants are surfactants that are synthesized by microorganisms using organic materials and have biodegradable properties, making them environmentally friendly. One of the applications of biosurfactants in the recovery of petroleum. This study aims to determine the type of biosurfactant produced by Pseudomonas aeruginosa bacteria using crude palm oil as the main carbon source, to determine the effect of variations in pH and CPO concentration on surface tension reduction and emulsification, and compare the best biosurfactant with surfactant synthesis. The production of biosurfactants has 3 stages, namely the bacterial preparation, the biosurfactant production, and the analysis in the form of surface tension, emulsification, crude oil removal, and FTIR. The best biosurfactant was obtained at pH 7 and a carbon source concentration of 3% v/v with surface tension and emulsification values ​​of 42.49 mN/m and 58%, respectively. The pH value and CPO concentration can affect the growth in the biosurfactant production process, thus also affecting the surface tension and emulsification values. The biosurfactants obtained were rhamnolipid biosurfactants. The biosurfactants produced in this study have lower crude oil recovery capabilities than synthetic surfactants with crude oil removal values ​​of 57.78% and 79.34%, respectively.
Co-Authors Ahmad Fadli Bahruddin Bahruddin Irdoni HS Sri Rezeki Muria SUSANTO, RENO