Patent ID: 11905900
Assignee: SAUDI ARABIAN OIL COMPANY
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 7:
8. A method of heating a catalyst during an engine cold start, the method comprising:
providing a mixture of air and fuel to an exhaust treatment system, wherein the exhaust treatment system comprises:
an exhaust line;
a flame arrestor;
a combustion zone, wherein the flame arrestor is located upstream of the combustion zone;
an combustion zone ignition source disposed in the combustion zone; and
a catalyst downstream of and in thermal communication with the combustion zone;

operating the combustion zone ignition source to combust the mixture of air and fuel, thereby generating a combustion gas in the exhaust treatment system; and
heating the catalyst with the generated combustion gas.