Biolubricant from spent bleaching earth oil through propylene glycol ester synthesis

Sukirno, Ade Sari Triana, Muhammad Rifqi

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

1 Citation (Scopus)

Abstract

An ester type biolubricant, propylene glycol ester, has been synthesized from spent bleaching earth oil (SBEO). First, SBEO was pretreated to remove coloring materials via adsorption using activated carbon, to reduce FFA (free fatty acid) via esterification using acid catalyst, to separate glycerol via transesterification using methanol, and to produce FAME (fatty acid methyl ester) or biodiesel. The transesterification process of the treated SBEO, using methanol and KOH as base catalyst at molar ratio 1:6 (SBEO:methanol) produced FAME with 99.21% yield. Then, FAME was reacted with propylene glycol to produce propylene glycol ester (biolubricant). The transesterification process of the FAME with propylene glycol produced propylene glycol ester biolubricant with 92% yield. The biolubricant gave flash point 252 °C and pour point-7 °C.

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
Country/TerritoryIndonesia
CityBali
Period14/08/1916/08/19

Keywords

  • Biolubricant
  • Flash Point
  • Pour Point
  • Propylene Glycol Ester
  • Spent Bleaching Earth Oil

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