Preliminary Analysis of Oil Shale Obtained from Kalynkara in Kazakhstan

Zhaksyntai K. Kairbekov; Naoto Masuda; Masa-aki Ohshima; Zhannur K. Myltykbaeva; Nazarke Kairbayeva; Valentina S. Yemilyanova; Hideki Kurokawa; Hiroshi Miura

doi:10.1627/jpi.57.192

Research Note

Preliminary Analysis of Oil Shale Obtained from Kalynkara in Kazakhstan

Zhaksyntai K. Kairbekov, Naoto Masuda, Masa-aki Ohshima, Zhannur K. Myltykbaeva, Nazarke Kairbayeva, Valentina S. Yemilyanova, Hideki Kurokawa , Hiroshi Miura

Author information

Zhaksyntai K. Kairbekov
Scientific Research Institute for New Chemical Technologies and Materials, Al-Farabi Kazakh National University
Naoto Masuda
Graduate School of Science and Engineering, Saitama University
Masa-aki Ohshima
Graduate School of Science and Engineering, Saitama University
Zhannur K. Myltykbaeva
Scientific Research Institute for New Chemical Technologies and Materials, Al-Farabi Kazakh National University
Nazarke Kairbayeva
Scientific Research Institute for New Chemical Technologies and Materials, Al-Farabi Kazakh National University
Valentina S. Yemilyanova
Scientific Research Institute for New Chemical Technologies and Materials, Al-Farabi Kazakh National University
Hideki Kurokawa Corresponding author
Graduate School of Science and Engineering, Saitama University
Hiroshi Miura
Graduate School of Science and Engineering, Saitama University

Keywords: Oil shale, Kazakhstan, Thermal analysis, Elemental analysis, Hydrogen/Carbon ratio

JOURNAL FREE ACCESS

2014 Volume 57 Issue 4 Pages 192-195

DOI https://doi.org/10.1627/jpi.57.192

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Abstract

Oil shale obtained from Kalynkara in Kazakhstan was investigated by powder XRD, XRF, SEM, TG-DTA, and EA. The XRD profiles indicated that the oil shale contained quartz (major component), CaSO₄·2H₂O, and Mg₄Al₂(OH)₁₂CO₂·H₂O as minerals. The amount of organic matter in the oil shale was determined by TG-DTA and was approximately 19 wt% based on the weight loss in the temperature range of 473-823 K. Moreover, the H/C ratio determined by EA and TG-DTA was 0.86, indicating that the structure of the organic matter was similar to that of coal. We attempted to extract the organic matter from the oil shale in decalin at 373-623 K, but no significant amount of products was obtained.

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