**Acknowledgements**

The work of this paper was accomplished as research and development engineers in the Coal Chemical Research Institute of JAMG. Thank you for financial and other support of our company, so that we can complete such a challenging research topic. In addition, other colleagues have also provided necessary assistant work for the completion of this work. Thank you.

Finally, I want to thank my beloved wife and families. With their support, I can devote myself wholeheartedly to my work and complete the writing of this research.
