Inventors:
John K. Arand - Rancho Palos Verdes CA
Lawrence J. Muzio - Laguna Niguel CA
John G. Sotter - Mission Viejo CA
Assignee:
Electric Power Research Institute, Inc. - Palo Alto CA
International Classification:
B01D 5334
Abstract:
Method for reducing NO. sub. x in combustion effluents comprising introducing urea at elevated temperatures in the presence of oxygen, either as a solid or solution in amounts sufficient to reduce the NO. sub. x concentration. Conveniently, the urea may be introduced as a solid powder or as a solution in a hydroxylic solvent, at temperatures in excess of 1300. degree. F. and in the presence of at least 0. 1 volume percent oxygen.
This invention was made under contract with or supported by the Electric Power Research Institute.