Establishing method of dynamic model of liquid phase catalytic paraxylene oxidizing reaction
A technology of reaction kinetics and catalytic oxidation, applied in chemical instruments and methods, organic chemistry, preparation of organic compounds, etc., can solve the problem that the kinetic model is difficult to accurately describe the operation of industrial reactors, cannot be described, and the function deviation is large, etc. question
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[0032] Below in conjunction with accompanying drawing and by embodiment the present invention will be further described:
[0033] Collection of semi-continuous gas-liquid reactors in the laboratory at different reaction temperatures (x 1 , ℃), solvent ratio (x 2 , mol / Kg), cobalt catalyst concentration (x 3 , ppmw), manganese catalyst concentration (x 4 , ppmw), and bromine accelerator concentration (x 5 , ppmw), corresponding to the rate constant k of each step of the series of reactions 1 , i=1,2,3,4. Using formula (3), the above variables are normalized: x 1 The range of variation [181, 210], x 2 The range of variation [0.4, 4], x 3 The range of variation [0.01, 0.07], x 4 The range of variation [0.01, 0.07], x 5 The variation range of [0.01, 0.100], a total of 28 sets of data were collected, and each set of data contained [x 1 , x 2 , x 3 , x 4 , x 5 , k 1 , k 2 , k 3 , k 4 ].
[0034] pair rate constant k 1 The neural network model, each set of data co...
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