Rate of Exothermic Reaction or Energy Gain

The rate of exothermic reaction determines the amount of energy gain in the cracking process and is calculated as follows (Chevron 

Energy Gain = Exothermic Reaction Rate Reaction Factor 

SG- specific gravity of the combined feeds Tx - Temperature of the combined feeds after preheat O2 - Percentage of oxygen in the reactor during reaction Crc - Alumina exothermic reaction coefficient Ac - Alumina absorption constant 

Exothermic Reaction Rate (MMBtu/hr) Energy Gain (MMBTU/hr) 

Energy Gain to TFOE eqnivalent (1 MMBtu/hr = 4.3052 TFOE) 

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