摘要
对手选低变质烟煤镜质组和惰质组进行的压汞法和N2吸附法孔隙分析，表明有机煤岩显微组分的孔隙结构差异显著，这种差异集中体现在大于1μm孔及小于30 nm孔隙的孔容，孔径分布及孔隙形态不同.惰质组中存在完整连续的孔系统，孔径分布范围广，直径大于10μm的超大孔、10-1μm的大孔和1.0-0.1μm的中孔发达；在30-10 nm范围内，惰质组中存在更多小尺寸的孔隙；镜质组中10-2 nm微孔的孔容虽相对较少，但在其孔隙分布体系中的比例较大，平均孔径较小；镜质组的孔隙形态复杂，不同孔径范围内，分别存在不透气孔、透气孔、墨水瓶状孔；而从微孔到大孔，惰质组的孔隙形态均匀，以不透气孔和透气孔为主.煤岩组分孔隙结构直接影响煤的结构和性质.
The investigation of the pore structure of macerals from a low rank bituminous was carried out by two methods of mercury-injection and liquid nitrogen adsorption. The results show that there are significant differences in pore structure between vitrinite and inertinite, especially in volume, size distribution and shapes of pores with diameter above 1 μm and below 30 nm. The inertinite is characterized with an integrate pore system and wider pore size distribution, and contains more ultra-macropore （above 10 μm）, macropore （10--1 μm diameter）, and medium-pore （1.0--0. 1μm diameter）. The proportion of small pore in the diameter range of 30--10 nm in inertinite is much less than that in vitrinite. Compared with inertinite, the vitrinite contains less total volume of micropore （10--2 nm diameter）. The proportion of micropore in vitrinite is high,and the average pore diameter of vitrinite is smaller. The pores shape in vitrinite is complicated, and there exist seepage pore, one opening blocked pore and ink-bottle-shaped pore. Almost all pores in inertinite are seepage pore and one opening blocked pore. The pore structure of macerals has a direct effects on the structure and properties of coal.
出处
《中国矿业大学学报》
EI
CAS
CSCD
北大核心
2009年第2期224-228,共5页
Journal of China University of Mining & Technology
基金
国家自然科学基金重大研究计划项目(90210014)
作者简介
段旭琴（1971-），女，山西省长治市人，讲师，工学博士，从事洁净煤技术方面的研究E-mail：dxq918@ces．ustb．edu．cn Tel：010-62311486
