Exhaust gas emissions abatement system

A method for removing methane oxidation catalyst (MOC) poisons from an exhaust gas, comprising:

• feeding the exhaust gas comprising methane (CH4) and the MOC poisons to a methane abatement unit comprising a guard bed and a MOC bed fluidly coupled to and downstream from the guard bed;
• contacting the exhaust gas with a MOC poisons capturing component disposed within the guard bed, wherein the MOC poisons capturing component comprises a first transition metal oxide, an aluminum oxide (Al2O3) support material, and a dolomite-derived support material, and wherein the MOC poisons capturing component is a co-extrudate of the first transition metal oxide, the Al2O3 support material, and the dolomite-derived support material such that the MOC capturing component is a single component;
• and
• removing the MOC poisons from the exhaust gas to generate an intermediate exhaust gas devoid of MOC poisons and comprising the CH4.

A methane oxidation catalyst (MOC) poisons capturing component for removing MOC poisons from an exhaust gas, comprising:

• an aluminum oxide (Al2O3) support material having a first porosity;
• a dolomite-derived support material having a second porosity that is less than the first porosity;
• a first transition metal oxide wherein a concentration of the first transition metal oxide is between approximately 1-25 weight % (wt %), and wherein the MOC poisons capturing component is a co-extrudate of the first transition metal oxide, the Al2O3 support material, and the dolomite-derived support material such that the MOC capturing component is a single component;
• and
• wherein the MOC poisons capturing component removes sulfur dioxide (SO2), phosphorus (P), calcium (Ca), zinc (Zn), silicon (Si) and ash.

A system for removing methane oxidation catalyst (MOC) poisons from an exhaust gas, comprising:

• a methane abatement unit configured to receive the exhaust gas comprising methane (CH4) and the MOC poisons, wherein the methane abatement unit comprises:
• a guard bed configured to remove the MOC poisons from the exhaust gas and to generate an intermediate exhaust gas comprising the CH4 and devoid of the MOC poisons, wherein the guard bed comprises a MOC poisons capturing component comprising a first layer comprising a first transition metal oxide and an aluminum oxide (Al2O3) support material, and a second layer comprising a second transition metal oxide and a dolomite-derived support material, and wherein the second transition metal is the same or different from the first transition metal;
• and
• a MOC bed fluidly coupled to and positioned downstream from the guard bed, wherein the MOC bed comprises a MOC and is configured to remove CH4 from the intermediate exhaust gas to generate a treated exhaust gas having less than approximately 200 parts per million volume (ppmv) CH4.