Abstract: A flue tuning and emissions saving system is disclosed. The device or system includes an inlet duct (20) having an inlet cross-sectional area and an outlet duct (18) having an outlet cross-sectional area that is the same as the inlet cross-sectional area. An outer duct (16) that is of an outer duct cross-sectional area is sealingly connected to the inlet duct (20) and the outlet duct (18), while separating the inlet duct (20) and the outlet duct (18). At least one disc (12) that is positioned at a specified distance S between the inlet duct (20) and at the same S to the outlet duct (18) and centered in the outer duct, the disk (12) includes a specified disc area so that flow of an exhaust gas entering the system through the inlet duct (20) will be diverted by the disc (12) into the outer duct (16) before the flow continues to the outlet duct (18) without encountering a restriction in flow cross-sectional area.

Abstract: A flue tuning and emissions saving system is disclosed. The device or system includes an inlet duct (20) having an inlet cross-sectional area and an outlet duct (18) having an outlet cross-sectional area that is the same as the inlet cross-sectional area. An outer duct (16) that is of an outer duct cross-sectional area is sealingly connected to the inlet duct (20) and the outlet duct (18), while separating the inlet duct (20) and the outlet duct (18). At least one disc (12) that is positioned at a specified distance S between the inlet duct (20) and at the same S to the outlet duct (18) and centered in the outer duct, the disk (12) includes a specified disc area so that flow of an exhaust gas entering the system through the inlet duct (20) will be diverted by the disc (12) into the outer duct (16) before the flow continues to the outlet duct (18) without encountering a restriction in flow cross-sectional area.

Abstract: A process and system for recovering hydrocarbonaceous products from in situ oil shale formations. A hole is drilled in the oil shale formation and a processing gas inlet conduit is positioned within the hole. A processing gas is pressurized, heated, and introduced through the processing gas inlet conduit and into the hole. The processing gas creates a nonburning thermal energy front within the oil shale formation so as to convert kerogen in the oil shale to hydrocarbonaceous products. The products are withdrawn with the processing gas through an effluent gas conduit positioned around the opening of the hole, and are then transferred to a condenser wherein a liquid fraction of the products is formed and separated from a gaseous fraction.

Abstract: A process and system for recovering hydrocarbonaceous products from in situ oil shale formations. A hole is drilled in the oil shale formation and a processing gas inlet conduit is positioned within the hole. A processing gas is pressurized, heated, and introduced through the processing gas inlet conduit and into the hole. The processing gas creates a nonburning thermal energy front within the oil shale formation so as to convert kerogen in the oil shale to hydrocarbonaceous products. The products are withdrawn with the processing gas through an effluent gas conduit positioned around the opening of the hole, and are then transferred to a condenser wherein a liquid fraction of the products is formed and separated from a gaseous fraction.