Relationship of CO Diffusion Quantity and Coal Maceral Contents in Low Rank Bituminous Coal

From the coal maceral,the CO diffusion and coal maceral experiments were conducted on 22 coal samples with different degree coal metamorphism.The experiment showed that the vitrinite content of the bituminous coal with medium and low degeneration degree would be higher than the inertinite content.The related analysis of the data showed that the CO diffusion quantity would have the direct ratio relationship to the vitrinite content of the coal and have the second curve relationship to the inertinite content.From the comparison between the vitrinite and inertinite,the influence analysis on the diffusion quantity could be obtained.And the inertinite influenced to the CO diffusion would be lager than the vitrinite to CO.The Quantum Mechanics software was applied to analyze and process the test data in order to provide the theoretical foundation to further study the diffusion mechanism of CO in seam.