Abstract: A regeneration method of an apparatus of purifying an exhaust gas including a catalytic converter which is disposed on an exhaust pipe and includes a lean NOx trap (LNT) device in which a first LNT catalyst is coated and a catalyzed particulate filter (CPF) in which a second LNT catalyst is coated may include determining whether a nitrogen oxide (NOx) amount absorbed in the LNT device is greater than a threshold NOx amount, determining whether a temperature of the LNT device is higher than a first predetermined temperature when the NOx amount absorbed in the LNT device is greater than the threshold NOx amount, and regenerating, both of the LNT device and the CPF or only the LNT device according to a temperature of the CPF when the temperature of the LNT device is higher than the first predetermined temperature.

Abstract: An apparatus of purifying an exhaust gas may include a catalytic converter which is disposed on an exhaust pipe and has a lean NOx trap (LNT) device in which a first LNT catalyst is coated and a catalyzed particulate filter (CPF) in which a second LNT catalyst is coated, and a regeneration method of the apparatus of purifying the exhaust gas may include determining whether a nitrogen oxide (NOx) amount absorbed in the LNT device is greater than a threshold NOx amount, determining whether a temperature of the LNT device is higher than a first predetermined temperature when the NOx amount absorbed in the LNT device is greater than the threshold NOx amount, and regenerating, both of the LNT device and the CPF or only the LNT device according to a temperature of the CPF when the temperature of the LNT device is higher than the first predetermined temperature.

Abstract: A catalyst manufacturing method includes: preparing UZM-35 zeolite; manufacturing ion-containing UZM-35 zeolite by substituting ions in a structure of the UZM-35 zeolite; and manufacturing metal-containing UZM-35 zeolite by exchanging copper (Cu) ions or iron (Fe) ions in a structure of the ion-containing UZM-35 zeolite.

Abstract: One form of the present disclosure provides a catalyst including: an LTA zeolite containing copper ions; and an additive, wherein a Si/Al molar ratio of the LTA zeolite is in a range of approximately 2 to 50.

Abstract: A catalyzed particulate filter includes at least one inflow channel including one end where a fluid inflows and another end that is blocked and extends in a length direction, at least one outflow channel including one end that is blocked and another end where the fluid outflows, and the other end extends in the length direction, at least one porous wall defining a boundary between the inflow channel and the outflow channel neighboring each other and extending in the length direction, and a catalyzed supporting member disposed on an inside of the outflow channel, wherein the supporting member includes a plurality of balls.

Abstract: A catalyzed particulate filter may include at least one inlet channel extending in a longitudinal direction, and having a first end into which fluid flows and a second end which is blocked; at least one outlet channel extending in a longitudinal direction, and having a first end which is blocked and a second end through which the fluid flows out; at least one wall that defines the boundary between adjacent inlet and outlet channels and that extends in a longitudinal direction; and at least one support positioned within at least one of the at least one inlet channel and the at least one outlet channel.

Abstract: An apparatus includes a catalytic converter on an exhaust pipe and provided with a lean NOx trap (LNT) device coated with an LNT catalyst, and a catalyzed particulate filter (CPF) coated with a catalyst. The LNT device and CPF are sequentially disposed in the catalytic converter. The CPF includes at least one inlet channel, extending in a longitudinal direction, having a first end into which fluid flows and a blocked second end; at least one outlet channel, extending in the longitudinal direction, having a blocked first end and a second end through which the fluid flows out; at least one porous wall defining a boundary between neighboring inlet and outlet channels and that extends in the longitudinal direction; and a support coated with the catalyst and located within at least one among the at least one inlet channel and the at least one outlet channel.

Abstract: Provided herein is an exhaust system comprising a diesel particulate filter coated with a selective catalytic reduction (SDPF) wherein the SCR is coated with a Cu/LTA catalyst comprising a LTA zeolite that includes copper ions and the SCR is coated on a high pore diesel particulate matter filter, wherein a ratio of copper and aluminum is from about 0.14 to about 0.48, and wherein the Si/Al ratio of the LTA zeolite is from about 8 to about 100.

Abstract: A catalyzed particulate filter that includes: at least one inlet channel extending in a longitudinal direction, one end of which lets fluid in, and the other end of which is blocked; at least one outlet channel extending in the longitudinal direction, one end of which is blocked and the other end of which lets the fluid out; at least one porous wall that defines the boundary between neighboring inlet and outlet channels and that extends in the longitudinal direction; and a support with a catalyst coating thereon.

Abstract: A catalyst according to an example embodiment includes an LTA zeolite having copper ions, wherein the weight ratio of copper to aluminum is from about 0.14 to about 0.58, and the weight ratio of silicon to aluminum of the LTA zeolite exceeds 1.

Abstract: An exhaust system may include first purification device disposed at a rear end portion of exhaust manifold and including Lean NOx Trap (LNT); second purification device disposed at rear end portion of the first purification device and including a diesel particulate filter (DPF); and a third purification device disposed at a rear end portion of the second purification device and including a selective catalytic reduction (SCR), wherein the DPF of the second purification device includes at least one inflow channel, at least one outflow channel, at least one wall disposed between the inflow channel and the outflow channel and extended in a longitudinal direction, and a support disposed inside of at least one of the inflow channel and the outflow channel, and at least one catalyst is coated on one of the inner wall of the inflow channel, the inner wall of the outflow channel, and the support.

Abstract: A method of manufacturing a catalyzed particulate filter may include: preparing a bare particulate filter including at least one inlet channel which may have a first end being open and a second end being blocked, at least one outlet channel which may have a first end being blocked and a second end being open and which is positioned alternately with the at least one inlet channel, at least one porous wall which defines a boundary between adjacent inlet and outlet channels, and a support which is located within at least one among the at least one inlet channel and the at least one outlet channel; injecting a catalyst slurry into the at least one inlet channel and the at least one outlet channel; discharging a portion of the catalyst slurry by blowing gas into or drawing the gas from the at least one inlet channel or the at least one outlet channel; and drying/calcining the particulate filter from which the portion of the catalyst slurry is discharged.

Abstract: A method of manufacturing a catalyzed particulate filter may include: preparing a bare particulate filter; injecting a first catalyst slurry into at least one inlet channel or at least one outlet channel; discharging a portion of the first catalyst slurry by blowing gas into the at least one outlet channel or the at least one inlet channel or drawing the gas from the at least one inlet channel or the at least one outlet channel; injecting a second catalyst slurry into the at least one outlet channel or the at least one inlet channel; discharging a portion of the second catalyst slurry by blowing gas into the at least one inlet channel or the at least one outlet channel or drawing the gas from the at least one outlet channel or the at least one inlet channel; and drying/calcining the particulate filter from which the portion of the first catalyst slurry and the portion of the second catalyst slurry are discharged.

Abstract: A regeneration method of an apparatus of purifying an exhaust gas including a catalytic converter which is disposed on an exhaust pipe and includes a lean NOx trap (LNT) device in which a first LNT catalyst is coated and a catalyzed particulate filter (CPF) in which a second LNT catalyst is coated may include determining whether a nitrogen oxide (NOx) amount absorbed in the LNT device is greater than a threshold NOx amount, determining whether a temperature of the LNT device is higher than a first predetermined temperature when the NOx amount absorbed in the LNT device is greater than the threshold NOx amount, and regenerating, both of the LNT device and the CPF or only the LNT device according to a temperature of the CPF when the temperature of the LNT device is higher than the first predetermined temperature.

Abstract: An apparatus for purifying an exhaust gas passing through an exhaust pipe includes a catalytic converter disposed on the exhaust pipe. The catalytic converter is provided with a lean NOx trap (LNT) device, the LNT device having an LNT catalyst coated therein, and a catalyzed particulate filter (CPF), the CPF having a catalyst coated therein, and the LNT device and the CPF are sequentially disposed in the catalytic converter.

Abstract: A catalyst manufacturing method includes: preparing UZM-35 zeolite; manufacturing ion-containing UZM-35 zeolite by substituting ions in a structure of the UZM-35 zeolite; and manufacturing metal-containing UZM-35 zeolite by exchanging copper (Cu) ions or iron (Fe) ions in a structure of the ion-containing UZM-35 zeolite.

Abstract: A preparation method of perovskite catalyst, represented by the following Chemical Formula 1: LaxAg(1-x)MnO3 (0.1?x?0.9), includes the steps of 1) preparing a metal precursor solution including a lanthanum metal precursor, a manganese metal precursor and a silver metal precursor, 2) adding maleic or citric acid to the metal precursor solution, 3) drying the mixture separately several times with sequentially elevating the temperature in the range of 160 to 210° C., and 4) calcining the dried mixture at 600 to 900° C. for 3 hours to 7 hours.

Abstract: A method for manufacturing a zeolite catalyst includes: manufacturing a first Linde Type A (LTA) zeolite using an LTA seed; manufacturing a second LTA zeolite including ions by substituting ions to the first LTA zeolite; and manufacturing a copper LTA zeolite by performing copper ion exchange on the second LTA zeolite.

Abstract: A catalyst includes LTA zeolite including copper ions, wherein a Si/Al ratio of the LTA zeolite is 2 to 50. The catalyst is coated on a honeycomb carrier or a filter. The catalyst removes NOx from a reaction gas at 100° C. or above. The catalyst has an NOx conversion rate of 80% at 450° C. or above.

Abstract: A catalyzed particulate filter includes at least one inflow channel including one end where a fluid inflows and another end that is blocked and extends in a length direction, at least one outflow channel including one end that is blocked and another end where the fluid outflows, and the other end extends in the length direction, at least one porous wall defining a boundary between the inflow channel and the outflow channel neighboring each other and extending in the length direction, and a catalyzed supporting member disposed on an inside of the outflow channel, wherein the supporting member includes a plurality of balls.