The varying temperature pulse proton NMR method was adopted to determine the e-quilibrium moisture content of several Chinese and Australian coals. The pulse proton NMR spec-trometry is sensible to the hydrogen at dif...The varying temperature pulse proton NMR method was adopted to determine the e-quilibrium moisture content of several Chinese and Australian coals. The pulse proton NMR spec-trometry is sensible to the hydrogen at different physical state which occurs for water when temperature changes through 273 K. The equilibrium water,with some interactions to the coal surface, will not transform from one phase to another while the free water does. The measured results are reasonable comparing to the conventional gravimetric method.展开更多
基金This project was supported by UNDP Project DP/CPR/85/031 headed by Prof. Wang Zuna
文摘The varying temperature pulse proton NMR method was adopted to determine the e-quilibrium moisture content of several Chinese and Australian coals. The pulse proton NMR spec-trometry is sensible to the hydrogen at different physical state which occurs for water when temperature changes through 273 K. The equilibrium water,with some interactions to the coal surface, will not transform from one phase to another while the free water does. The measured results are reasonable comparing to the conventional gravimetric method.
