Effect of Liquid Nitrogen Freeze–Thaw Cycles on Pore Structure Development and Mechanical Properties of Coal
Bo Li, Zhen Shi, Zeqi Wang, Laisheng Huang
Abstract
spectrum area is 20.1%, the chain growth rate of adsorption pore is 4.8%, the chain growth rate of seepage pore is 22.2%, and the growth rate of the pore volume is greatly reduced. Comparing the changes of pore and coal mechanical properties in different pore sizes, it can be seen that the change of adsorption pore volume has a greater impact on coal mechanical properties.
Topics & Concepts
CoalNitrogenLiquid nitrogenMaterials scienceChemical engineeringChemistryEngineeringOrganic chemistryCoal Properties and UtilizationRock Mechanics and ModelingHydrocarbon exploration and reservoir analysis