Data for characterization of the pore wetting process of equal-sized granular coals

Yuebing Zhang; Quangui Li; Qianting Hu; Cheng Zhai; Mingyang Song; Jizhao Xu; Yize Deng; Peng Liu; Yong Sun; Jialin Shi; Liangping Hu

doi:10.1016/j.dib.2022.107887

Data for characterization of the pore wetting process of equal-sized granular coals

Data Brief. 2022 Feb 3:41:107887. doi: 10.1016/j.dib.2022.107887. eCollection 2022 Apr.

Authors

Yuebing Zhang^{1

2}, Quangui Li^{1

2}, Qianting Hu^{1

2}, Cheng Zhai³, Mingyang Song^{1

2}, Jizhao Xu³, Yize Deng^{1

2}, Peng Liu^{1

2}, Yong Sun³, Jialin Shi^{1

2}, Liangping Hu^{1

2}

Affiliations

¹ State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, China.
² School of Resources and Safety Engineering, Chongqing University, Chongqing 400044, China.
³ School of Safety Engineering, China University of Mining and Technology, Xuzhou 221116, China.

Abstract

In this paper, all measurement and calculation data and their preparation process are presented in detail, which supplements the information published in this co-submission are related to the article "Characterization of the Pore Wetting Process of Equal-Sized Granular Coals based on LF-NMR" [1]. This includes the preparation and component analysis of samples, surface contact angle measurement, analysis of original T₂ spectrum and wetting pore size distribution (W-PSD) conversion calculation process. Hence the reader can use the data for their validations and analysis. LF-NMR experiments were conducted for the granular coal pore wetting characterization at the large-diameter MacroMR12-150H-I imaging and analysis system, of Suzhou Niumai Corporation in Jiangsu Province, China. Combined with contact angle measurement, which used the JY-PHb contact angle test instrument, we analyzed the pore wetting process in porous media and its characterization method.

Keywords: Contact angle; Granular coal; Pore wetting; Wetting pore size distribution.