Integrated engine exhaust and heat process flexible and low emissions combined heat and power process and system

摘要

The invention provides systems and methods for electric power production and integrated combustion and emissions control. The invention may include an engine capable of receiving air and fuel, and producing power and an engine exhaust gas. The invention may also include a first reaction zone receiving the engine exhaust gas from the engine configured to combust fuel and air having an equivalence ratio of more than one, thereby generating a first product. The combustion may reduce nitrogen containing species. The invention may also include a second reaction zone receiving the engine exhaust gas from the engine configured to combust fuel and air having an equivalence ratio of less than one, thereby generating a second product. The combustion may reduce or minimize NOx. The invention may also include a mixing zone configured to receive the first product and second product, and mix and react the first and second products, thereby generating an exhaust with reduced NOx levels. This may occur with sufficient residence time and temperature to complete combustion and promote nitrogenous species reduction reactions. For inventions with multiple zones, fuel or air or exhaust gas may be adjusted, diverted or turned off as load is reduced to maintain flame stability for all zones that remaining operational. For inventions with engine exhaust that provides less oxidant than the burner requires, an air eductor means may be arranged between the engine and the burner that entrains needed additional oxidant and simultaneously recovers the flow energy in the turbine exhaust.

主权项

1. An electric power production and integrated burner system, comprising:
at least one engine capable of producing power and an engine exhaust gas; a first reaction zone receiving at least a portion of the engine exhaust gas from the engine and configured to combust fuel and air having an equivalence ratio of more than one, thereby generating a first product; a second reaction zone receiving at least a portion of the engine exhaust gas from the engine and configured to combust fuel and air having an equivalence ratio of less than one, thereby generating a second product; and a mixing zone configured to receive the first product and second product, and mix and react the first and second products, thereby generating an exhaust with reduced NOx levels; wherein in use the mixing zone exhaust produces a flame satisfying a burner load; and wherein the combustion of fuel and air in the first and/or second reaction zones is modulated to maintain flame stability in response to changes in the burner load and while the engine is operated at a constant speed to optimize the engine's power output and efficiency.