Extraction and oxidative desulfurization of bitumen from oil sand using n-pentane and ultrasound

Abstract Oil sand contains about 15 wt% bitumen which contains approximately 5 wt% sulfur. Bitumen must be extracted from sand and desulfurized before use as a fuel. Currently, bitumen is recovered from sand using hot water (80 °C) and sulfur is removed via hydrodesulfurization (200 °C–450 °C), whic...

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Bibliographic Details
Published inJapanese Journal of Applied Physics Vol. 61; no. SG; p. SG8002
Main Authors Wakisaka, Yoshitaka, Okawa, Hirokazu, Saigo, Kumi, Kato, Takahiro, Sugawara, Katsuyasu
Format Journal Article
LanguageEnglish
Published Tokyo IOP Publishing 01.07.2022
Japanese Journal of Applied Physics
Subjects
bitumen
Bitumens
desulfurization
Desulfurizing
Hydrodesulfurization
Hydrogen peroxide
Oil sands
Sulfur
Ultrasonic imaging
ultrasound
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Summary:Abstract Oil sand contains about 15 wt% bitumen which contains approximately 5 wt% sulfur. Bitumen must be extracted from sand and desulfurized before use as a fuel. Currently, bitumen is recovered from sand using hot water (80 °C) and sulfur is removed via hydrodesulfurization (200 °C–450 °C), which consumes large amounts of energy. Therefore, we investigated the separation of bitumen from sand and the oxidative desulfurization of bitumen using ultrasound and n-pentane at 20 °C. We successfully extracted 94 wt% bitumen from sand and removed 66.1% of the sulfur via oxidative desulfurization using 15 wt% H 2 O 2 and 5 mol l −1 NaOH.
Bibliography:JJAP-S1102556.R1
ISSN:0021-4922
1347-4065
DOI:10.35848/1347-4065/ac4929