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Akinlua A, Jochmann MA, Lorenzo-Parodi N, Stojanovic N, Kaziur W, Schmidt TC. A green approach for the extraction of diamondoids from petroleum source rock. Anal Chim Acta 2019; 1091:23-29. [PMID: 31679571 DOI: 10.1016/j.aca.2019.08.071] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Revised: 08/05/2019] [Accepted: 08/29/2019] [Indexed: 11/16/2022]
Abstract
Extraction of adamantanes and diamantanes from petroleum source rock using nonionic surfactant was investigated and the optimum conditions for yields of the diamondoids were determined. The conventionally used accelerated solvent extraction method was compared to an innovative microwave-assisted nonionic surfactant extraction (MANSE). A three-level full factorial design of experiment (DoE) was adopted for the optimization of MANSE, involving solvent concentration, extraction temperature as well as extraction time. In-tube extraction (ITEX-2) using TENAX TA as sorbent in combination with gas chromatography-mass spectrometry (GC-MS) was used to determine the diamondoids in the extract. The results revealed that solvent concentration, extraction temperature and time have significant effects on extraction yields of the diamondoids. 0.04 M was the optimum surfactant concentration for extraction of both, adamantane and diamantane. The highest yields of the diamondoids were obtained at extraction temperature of 80 °C. The optimum extraction time for both adamantane and diamantane was 10 min. In comparison with the accelerated solvent extraction method, the results showed that MANSE is more efficient. This study has revealed that MANSE is a robust and efficient environmentally benign sample preparation method for geochemical evaluation of petroleum source rock.
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Affiliation(s)
- Akinsehinwa Akinlua
- Fossil Fuels and Environmental Geochemistry Group, Department of Chemistry, Obafemi Awolowo University, Ile-Ife, Nigeria.
| | - Maik A Jochmann
- Instrumental Analytical Chemistry, University Duisburg-Essen, Universitätsstr, 5, 45141, Essen, Germany
| | - Nerea Lorenzo-Parodi
- Instrumental Analytical Chemistry, University Duisburg-Essen, Universitätsstr, 5, 45141, Essen, Germany
| | - Nenad Stojanovic
- Instrumental Analytical Chemistry, University Duisburg-Essen, Universitätsstr, 5, 45141, Essen, Germany
| | - Wiebke Kaziur
- Instrumental Analytical Chemistry, University Duisburg-Essen, Universitätsstr, 5, 45141, Essen, Germany
| | - Torsten C Schmidt
- Instrumental Analytical Chemistry, University Duisburg-Essen, Universitätsstr, 5, 45141, Essen, Germany; Centre for Water and Environmental Research (ZWU), University of Duisburg-Essen, Universitätsstrasse 5, 45141, Essen, Germany; IWW Water Centre, Moritzstrasse 26, 45476, Mülheim an der Ruhr, Germany
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Zhang R, Huo J, Peng Z, Feng Q, Zhang J, Wang J. Emulsification properties of comb-shaped trimeric nonionic surfactant for high temperature drilling fluids based on water in oil. Colloids Surf A Physicochem Eng Asp 2017. [DOI: 10.1016/j.colsurfa.2017.01.017] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Luong D, Sephton MA, Watson JS. Subcritical water extraction of organic matter from sedimentary rocks. Anal Chim Acta 2015; 879:48-57. [DOI: 10.1016/j.aca.2015.04.027] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2014] [Revised: 04/04/2015] [Accepted: 04/16/2015] [Indexed: 10/23/2022]
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