Rich Flammability Limits in CH3OH/CO/diluent Mixtures

摘要: ABSTRACT This investigation is an attempt to predict theoretically, using existing flame modeling capabilities, rich flammability limits for gas mixtures—parameters that are of immense interest the chemical industry. The system chosen study methanol/carbon monoxide/diluent mixtures, where diluent either nitrogen or carbon dioxide at pressures 1,11, and 21 atm, respectively. critical oxygen concentration needed sustain a flame, several mixtures pressures, was determined experimentally in spherical vessel with central ignition source. Burning velocities 1-D, planar, freely propagating, premixed flames were calculated determine minimum required these propagate. O2 found be consistently larger than observed experiments; however, effects pressure composition agreed well experimental measurements. In order understand better all phenomena involved, transie...