Patent ID: 11927124
Assignee: CUMMINS POWER GENERATION LIMITED
Field: Environmental technology (Chemistry)
Classification: CPC F  Y | IPC F

Claim 12:
13. An aftertreatment method, comprising:
actuating a first fuel actuator to introduce a first gaseous fuel into an intake air stream;
actuating a second fuel actuator to introduce a second liquid fuel into a cylinder;
combusting the first gaseous fuel and the second liquid fuel within the cylinder;
treating exhaust gases received from the cylinder with a selective catalytic reduction system including a vanadium substrate, by injecting diesel exhaust fluid based on a space velocity, an ammonia to NOx ratio, an exhaust temperature, a feedback substitution rate, and a conversion efficiency target;
treating exhaust gases received from the selective catalytic reduction system with an ammonia slip catalyst without an intervening catalyst; and
treating exhaust gases received from the ammonia slip catalyst with an oxidation catalyst.