System and Process for Reclaiming Single and Mixed Amine Solvents

摘要

A processes is for purifying an amine compound from a feed solvent which includes an amine salt of the amine compound. The process includes heating the feed solvent in a single stage evaporator of a reclaimer at a reduced operating pressure by feeding the evaporator with a constant amount of thermal energy; and evaporating the amine compound to purity the amine compound from the feed solvent.

主权项

1. A process for purifying an amine compound from a feed solvent, the process comprising:
heating the feed solvent in a single stage vertical evaporator of a reclaimer at a reduced operating pressure by feeding the evaporator with a constant amount of thermal energy; evaporating the amine compound to purify the amine compound from the feed solvent: replacing the evaporated amine compound with additional feed solvent; varying the operating pressure of the evaporator to maintain the evaporator at a preset temperature and to maintain the evaporation of the amine compound at a preset recovery rate: concentrating reclaiming waste in a waste collector of the vertical evaporator; withdrawing at least a portion of the collected reclaiming waste from the evaporator when: a) the content of the amine compound in a vapor output from the single stage evaporator falls below a threshold level, b) the temperature of the evaporator reaches or exceeds a threshold temperature; c) the recovery rate of the amine compound falls below a threshold recovery rate; or d) any combination thereof; and replacing the withdrawn reclaiming waste with additional feed solvent.