System and process for reclaiming single and mixed amine solvents
First Claim
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1. A reclaiming system for purifying an amine compound from a feed solvent, the system comprising:
- a single stage vertical solvent evaporator unit for separating the amine compound from the feed solvent by evaporation, the vertical evaporator unit comprising;
an inlet for the feed solvent;
a vertical evaporator vessel in fluid communication with the inlet and comprising a first waste collector for collecting reclaiming waste from the vertical evaporator vessel;
a vertical sidearm heater providing thermal energy to the solvent evaporator unit at a constant rate, the vertical sidearm heater in fluid communication with the evaporator vessel and configured to receive liquid from the vertical evaporator vessel and to provide vapor comprising a separated amine compound and non-condensable gases to the vertical evaporator vessel, and comprising a second waste collector for collecting unevaporated reclaiming waste from the vertical sidearm heater; and
at least one liquid outlet in fluid communication with the first and second waste collectors to remove the collected reclaiming waste from the reclaiming system;
a vacuum pump reducing the operating pressure of the reclaiming system;
a condenser unit in fluid communication with the vertical evaporator unit and accepting the separated amine compound vapor from the solvent evaporator unit to form a condensed amine compound; and
a liquid/gas separator unit in fluid communication with the condenser unit to separate the condensed amine compound from the non-condensable gases, providing a purified amine compound.
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Abstract
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.
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Citations
15 Claims
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1. A reclaiming system for purifying an amine compound from a feed solvent, the system comprising:
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a single stage vertical solvent evaporator unit for separating the amine compound from the feed solvent by evaporation, the vertical evaporator unit comprising; an inlet for the feed solvent; a vertical evaporator vessel in fluid communication with the inlet and comprising a first waste collector for collecting reclaiming waste from the vertical evaporator vessel; a vertical sidearm heater providing thermal energy to the solvent evaporator unit at a constant rate, the vertical sidearm heater in fluid communication with the evaporator vessel and configured to receive liquid from the vertical evaporator vessel and to provide vapor comprising a separated amine compound and non-condensable gases to the vertical evaporator vessel, and comprising a second waste collector for collecting unevaporated reclaiming waste from the vertical sidearm heater; and at least one liquid outlet in fluid communication with the first and second waste collectors to remove the collected reclaiming waste from the reclaiming system; a vacuum pump reducing the operating pressure of the reclaiming system; a condenser unit in fluid communication with the vertical evaporator unit and accepting the separated amine compound vapor from the solvent evaporator unit to form a condensed amine compound; and a liquid/gas separator unit in fluid communication with the condenser unit to separate the condensed amine compound from the non-condensable gases, providing a purified amine compound. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification