C 3 in dry gas
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The paraffin oil catalytic cracking unit has been in operation for just over a year; it was designed by the Luoyang Design Institute. The gas rich in hydrocarbons obtained through distillation is sent to the absorption and stabilization towers via a compressor. Recently, there was an elevated level of components with molecular weights above C3 in the dry gas, accounting for nearly 4% of its composition. My question is: how can one determine the composition of the gas rich in hydrocarbons entering the absorption and stabilization towers without using analytical testing methods?
If chemical analysis methods are not used, the composition of the rich gas can only be roughly determined based on the phenomena observed during operation. 1. The pressure in the reabsorption tower. 2. The flow rate of dry gas. 3. Flow rate of gaseous hydrocarbons to the compressor. 4. What are the subtle changes in the operating conditions of the air compressor?