Based on testing data and statistical research for coke and coal in 0-50kg/cm
2G pressurized, 0-100vol% contained oxygen by high pressurized differential temperature analyzer (H. DTA) and high pressurized thermal gravimeter (H. TGA), authors identified that oxygen contents (mol/
l) at the ignition temperature should control the ignition temperature instead of deflection temperature and the deflection temperature should be nearly same in high pressure for the oxygen contents.
And authors procast that high pressueized low speed high density pneumatic conveying system should be better than low pressurized-high speed-low density pneumatic conveying system for the industrial safety by the design for the best selected oxygen contents in the pressurized vessels and CO detecting systems in the stored vessels.
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