Process Flow Diagram - an overview | ScienceDirect
The features of the loops are outlined as follows: (1) The feed rate is flow-controlled via FC1 (reverse-acting); (2) The pressure in the column is controlled (direct-acting) through FC509 valve at the trim condenser outlet via PC1; (3) The bottom composition control CC2 is cascaded to TC1 column temperature control, output of which dictates the shaft speed of compressor B5551; (4) The top …
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