| Project/Area Number |
22760648
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Earth system and resources enginnering
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| Research Institution | Akita University |
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Principal Investigator |
OKAWA Hirokazu 秋田大学, 大学院・工学資源学研究科, 助教 (00375221)
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| Co-Investigator(Renkei-kenkyūsha) |
KAWAMURA Youhei 筑波大学, システム情報工学研究科, 講師 (40361323)
KODA Shinobu 名古屋大学, 工学研究科, 教授 (10126857)
SASAKI Kyuro 九州大学, 工学研究科, 教授 (60178639)
SUGAI Yuichi 九州大学, 工学研究科, 助教 (70333862)
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| Project Period (FY) |
2010 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2011: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2010: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
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| Keywords | 資源開発 / オイルサンド / 超音波 / 分離 / ビチューメン |
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| Research Abstract |
Low (28 kHz) and high (200 kHz) frequency sonication combined with hot water treatments at 45 and 85℃ were investigated to assess the effects of different ultrasound frequencies and water temperatures on the recovery of bitumen from oil sand. A mechanical stirrer was also used to compare the efficiency of separation. Bitumen recovery tests were performed under argon, air, and nitrogen atmospheres. Sonication at 200 kHz was shown to recover bitumen effectively from oil sand at 85℃. For low temperature (45℃) solutions, only sonication at 28 kHz could recover bitumen from oil sand, demonstrating that sonication at 28 kHz can effectively breakdown the oil sand aggregates into a suspension. Hydrogen peroxide was also used to confirm the positive role for bitumen recovery. The role of highly concentrated H_2O_2 (>100 ppm) to recover bitumen during sonication was investigated. Hydrogen peroxide formed a bubble around the bitumen, which made it rise more easily to the solution surface during sonication. The result showed a good recovery rate of bitumen.
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