Synthesis and characterization of ethylene glycol ester from spent bleaching earth oil and ethylene glycol as hydraulic lubricants

Sukirno, Luki Farhandika

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Solid waste of Spent Bleaching Earth (SBE) containing a small amount of oil is generated in the processing Crude Palm Oil (CPO) into cooking oil. Recovery of the oil from SBE from extraction process can produce SBEO (spent bleaching oil), a low-grade oil which has dark color, contain significant amount of FFA (free fatty acid) and solidified at ambient temperature. In this research, this SBEO is utilized as biolubricant after treating through 2 step of processes. The first step is the conversion of SBEO into methyl ester by decolorization, FFA reduction, and transesterification processes. The second step is conversion of methyl ester into ethylene glycol ester. Transesterification of the SBE into methyl ester by methanol at ratio 1:6, give yield of 99.74. While second step transesterification of methyl ester into ethylene glycol is conducted by ethylene glycol. Temperature of 170°C has the best result of yield (93%). Physical characteristic of the ethylene glycol product give density at 40°C of 0.91 gr/cm3 and viscosity (at 40°C) of 9,75 cSt, flash point of 252°C, pour point of-7°C. This Physical characteristic meet the standard SNI 7069.9-2016 for hydraulic lubricant

Original languageEnglish
Title of host publication4th International Tropical Renewable Energy Conference, i-TREC 2019
EditorsEny Kusrini, I. Gde Dharma Nugraha
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735420144
DOIs
Publication statusPublished - 3 Sep 2020
Event4th International Tropical Renewable Energy Conference 2019, i-TREC 2019 - Bali, Indonesia
Duration: 14 Aug 201916 Aug 2019

Publication series

NameAIP Conference Proceedings
Volume2255
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference4th International Tropical Renewable Energy Conference 2019, i-TREC 2019
CountryIndonesia
CityBali
Period14/08/1916/08/19

Keywords

  • Biolubricant
  • Decolorization
  • Ethylene Glycol Ester
  • Spent Bleaching Oil

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