Heat recovery of liquid carbon dioxide purification utilizes system

The utility model discloses a heat recovery of liquid carbon dioxide purification utilizes system, include from the liquefier, liquid ammonia storage tank, decontaminating column, evaporative condenser and the compressor that once set gradually to the opposite side, the internally mounted of decontaminating column has reboiler and distilling box, the reboiler is located distilling box's below, andthe inside of reboiler has seted up the evaporation chamber, all be connected with the liquid ammonia back flow between reboiler and evaporative condenser and the liquid ammonia storage tank, partialpressure valve is installed on evaporative condenser's top, the utility model discloses set up liquid ammonia back flow, partial pressure valve and partial pressure valve outlet duct, when the purification of carrying out carbon dioxide, the heat of at first carrying on between gaseous carbon dioxide and the liquid ammonia through the liquefier is traded, forms liquid carbon dioxide and gas ammonia respectively, contains