What methodology is used for plant debottlenecking?

Debottlenecking methodology: (1) Define target - capacity increase, quality improvement, efficiency gain. (2) Data gathering - actual operating data, equipment capacities, hydraulic surveys. (3) Model validation - update simulation to match current operation. (4) Bottleneck identification - systematic screening of each equipment: heat exchangers (clean coefficients vs. fouled), columns (approach to flooding), reactors (conversion, temperature limits), pumps/compressors (head, power), relief systems (relieving capacity). (5) Solution development - operational changes first (controls, procedures), then minor modifications, finally major changes. (6) Economic evaluation - cost vs. benefit. (7) Implementation - manage risk during modifications. Common bottlenecks: heat transfer (fouling), column hydraulics, compressor limits, relief capacity. Low-cost gains often possible through optimization before capital investment.