Organic geochemistry characteristic of aliphatic hydrocarbon fraction of Sawahlunto coal, Ombilin Basin, West Sumatra

Yulfi Zetra*, Januar Kholik, R. Y.Perry Burhan, Agus Wahyudi, Zjahra Vianita Nugraheni, Endah Mutiara Marhaeni Putri

*Corresponding author for this work

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

2 Citations (Scopus)

Abstract

Sawahlunto coal from West Sumatra has been analyzed to determine the characteristics of organic geochemistry. Coal was extracted by Soxhlet method with a mixture of aceton: methanol: chloroform (47:23:30) as solvent. The extracts were fractioned using column chromatography. Aliphatic hydrocarbon fraction was analyzed using Gas Chromatography - Mass Spectrometry (GC-MS). The analysis of aliphatic hydrocarbon fraction shows the presence of n-alkanes and isoprenoids. The n-alkanes compounds are distributed from n-C16 to n-C31 with predominance of carbon long chains (>20). These compound were expected formed by higher plants terrestrial. The presence of pristane and phytane compounds with maximum abundance in pristane compounds exhibits a deposition environment of coal under oxic conditions. Two samples of Sawahlunto coal were classified as sub-bituminous coal based on the value of caloric analysis.

Original languageEnglish
Title of host publication3rd International Seminar on Chemistry
Subtitle of host publicationGreen Chemistry and Its Role for Sustainability
EditorsFredy Kurniawan, Yuly Kusumawati, Sri Fatmawati, Hendro Juwono, Adi Setyo Purnomo
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735417755
DOIs
Publication statusPublished - 14 Dec 2018
Event3rd International Seminar on Chemistry: Green Chemistry and Its Role for Sustainability, ISOC 2018 - Surabaya, Indonesia
Duration: 18 Jul 201819 Jul 2018

Publication series

NameAIP Conference Proceedings
Volume2049
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference3rd International Seminar on Chemistry: Green Chemistry and Its Role for Sustainability, ISOC 2018
Country/TerritoryIndonesia
CitySurabaya
Period18/07/1819/07/18

Keywords

  • Sawahlunto Coal
  • aliphatic hydrocarbon biomarker
  • organic geochemistry

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