PLANT FOR REMOVAL OF CARBON DIOXIDE FROM GASEOUS MIXTURES Russian patent published in 2003 - IPC

FIELD: removal of carbon dioxide from gaseous mixtures. SUBSTANCE: plant for removal of carbon dioxide from gaseous mixtures has regenerative units interconnected by gas and other pipelines, and pumps. Regenerative units include accumulator, pump and velocity straight-flow apparatus for gas-liquid treatment of gas containing carbon dioxide, with supply of it with agent circulating in closed system by pump from accumulator through velocity straight-flow apparatus and presenting coaling and flushing unit for gas-liquid treatment of gas under thermodynamic conditions with respect to carbon dioxide and steam in velocity straight-flow apparatus; absorption unit for chemisorption of carbon dioxide from gas mixture by agent circulating in closed system through velocity straight-flow apparatus with withdrawal closed system of circulation of agent saturated with carbon dioxide through evaporator for desorption of carbon dioxide and heat exchanger for heat regeneration, and unit for drying and cleaning of carbon dioxide with agents circulating by means of pumps through closed cycles through velocity straight-flow apparatus with provision in drying and cleaning unit of working condition by volume of carbon dioxide circulating in closed cycle with help of gas blower with simultaneous controlled withdrawal of a part of ready product. In this case, a part of ready product is withdrawn for compessing. EFFECT: higher operating efficiency, reduced metal content and power consumption in removal of carbon dioxide from gaseous mixtures. 2 cl, 3 dwg