A method of operating a pyrolysis heater for reduced NOx

摘要

A method of operating a pyrolysis heater for reduced emissions of NO x and carbon monoxide. One or more wall burners 20, typically premix burners, are operated with more excess oxidant gas than one or more of the floor or hearth burners 10, which are typically non-premix burners. The invention takes advantage of different NO x emissions characteristics from different types of burners.