期刊
ENERGY REPORTS
卷 7, 期 -, 页码 523-536出版社
ELSEVIER
DOI: 10.1016/j.egyr.2021.01.021
关键词
Microwave pyrolysis; Tar-rich coal; In situ oil recovery; Unmanned automatic mining machine
资金
- National Natural Science Foundation of China [51727807, 51674251]
- Innovation Teams of the Ten-thousand Talents Program - Ministry of Science and Technology of China [2016RA4067]
Efficient, safe, and environmentally friendly methods for low-carbon utilization of coal are crucial for cleaner energy production. While tar-rich coal in western China holds great potential, current practices result in wastage of valuable oil resources and serious environmental pollution. Research is focusing on achieving zero or near-zero carbon emissions while minimizing damage to geological formations when mining coal, with novel approaches such as intelligent unmanned automatic mining machines (UAMM) integrating microwave pyrolysis technology for in situ extraction of oil and gas being proposed.
Efficient, safe, and environmentally friendly methods for the low-carbon utilization of coal are required to exploit this resource as a source of cleaner energy. Tar-rich coal can produce a high volume of oil and is abundant in western China. Currently, tar-rich coal is mostly combusted for power generation, which results in wastage of valuable oil resources and serious environmental pollution. Researchers have focused on achieving zero or near-zero carbon emissions while alleviating damage and pollution to geological formations when mining coal resources. In particular, the use of an intelligent unmanned automatic mining machine (UAMM) integrating microwave pyrolysis technology for the in situ mining and conversion of coal into oil and gas has been proposed. However, to date, studies on the microwave pyrolysis of tar-rich coal for the efficient extraction of oil are lacking. In this study, we outline the state-of-the-art developments in the microwave treatments of coal. The principles and advantages of microwave heating compared with traditional heating methods are discussed. Further, current research and applications of microwave-assisted coal processing are reviewed. We also discuss the challenges and future developments in the field of the microwave-based pyrolysis of coal. This report provides a reference for the application of microwave technology to in situ mining, pyrolysis, and conversion of tar-rich coal into liquid energy resources based on a UAMM. (C) 2021 The author(s). Published Elsevier ltd.
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