Low pressure drop advanced swirl technology gas filter

A closed loop SCO2 system independent of a media filter, comprising:

• a heater in flow communication with a process SCO2 fluid to heats the fluid to supercritical parameters for input into a turbine;
• the process SCO2 fluid flowing first through a y-pipe filter;
• a recompressor, a main compressor, a high temperature (HT) recuperator and a low temperature (LT) recuperator, connected in a closed process loop;
• the SCO2 in flow communication with the turbine flowing from turbine to an input of the recompressor and into the main compressor;
• and
• a gas cooler for feeding cooled gas to the main compressor;
• wherein the recompressor recirculates a portion of the process SCO2 fluid to the high temperature (HT) recuperator at a junction, in serial flow communication with the low temperature (LT) recuperator;
• the main compressor discharges process SCO2 fluid to the LT recuperator;
• the turbine discharges a portion of SCO2 fluid to HT recuperator in a reverse path to LT recuperator;
• the HT recuperator discharge in a forward path to heater inlet and thence to the y-pipe filter at an inlet to turbine;
• and
• wherein the y-pipe filter comprises:
• a first pipe section connected in flow communication with the closed loop SCO2 system;
• a y-pipe segment intersecting the first pipe section at an intersection joint;
• the intersection joint at a descending obtuse angle with respect to the first pipe section flow direction;
• the y-pipe segment open at the intersection joint and closed opposite the intersection joint, in flow communication with the first pipe section;
• wherein the y-pipe section inducing an eddy current turbulence zone adjacent the intersection joint to remove substantially all contaminants suspended in the SCO2 fluid;
• and wherein the contaminants are deposited in the descending y-pipe segment.