Characteristics of Oil Shale Quality and Prospects for Comprehensive Development and Utilization in the Dalianhe Coal Mining Area, Northeastern China

Zhixun Liu, Hao Ran (), Heping Yang, Shunyu Yao and Cheng Ma
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Zhixun Liu: Development Research Center, China Geological Survey, Beijing 100037, China
Hao Ran: Development Research Center, China Geological Survey, Beijing 100037, China
Heping Yang: Natural Resources Survey Institute of Heilongjiang Province, Harbin 150036, China
Shunyu Yao: China Coal Finance Co., Ltd., Beijing 100120, China
Cheng Ma: Development Research Center, China Geological Survey, Beijing 100037, China

Energies, 2023, vol. 16, issue 13, 1-16

Abstract: Oil shale is an important unconventional oil and gas resource, but it is poorly utilized in the Dalianhe coal mining area, northeastern China. Systematic sampling and test analysis were used to evaluate the characteristics of oil shale quality. The research shows that the oil shale between the middle and lower coal seams in the coal-bearing member is a rich ore with a high oil content, medium calorific value, high ash content, medium volatile content, low moisture, and ultralow sulfur content. The oil shale has good quality and is suitable for low-temperature carbonization for oil refining or low-calorific fuel. The ash content is silicon–aluminum-rich, has low calcium–magnesium, is iron-poor, and has a high ash melting point. The middle oil shale member is a poor ore with low quality. However, there is a dense section of oil shale with a high organic matter content and good quality above the upper coal seam. It is recommended to implement combined mining of coal and oil shale in the mineshaft and to reasonably recover oil shale between the coal seams and oil shale above the upper coal seam to improve the resource utilization rate.

Keywords: Dalianhe coal mining area; oil shale; organic matter; quality; development and utilization (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
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