CONTINUOUS MEASUREMENT OF AMINE LOADING IN GAS PROCESSING PLANTS USING RAMAN SPECTROSCOPY

摘要

The present invention provides a system and a method for continuous measurement of acid gas concentration or amine loading in a basic solution using Raman spectroscopy. The system comprises a sampler for periodically obtaining a sample of one or both of a lean or a rich stream basic solution; a Raman spectrometer to obtain a Raman spectrum from one or both of said solutions; at least a processor programmed to: compare a spectral change in the measured Raman spectrum from a baseline or a control Raman spectrum; correlate the spectral change with an acid gas concentration or basic solution or both; and determine if a change to a regeneration parameter is necessary; and if so, provide control information to an actuator to implement the change.