Methods and Systems for Controlling the Products of Combustion

摘要

The present invention relates to methods and systems for controlling a combustion reaction and the products thereof. One embodiment includes a combustion control system having an oxygenation stream substantially comprising oxygen and CO2 and having an oxygen to CO2 ratio, then mixing the oxygenation stream with a combustion fuel stream and combusting in a combustor to generate a combustion products stream having a temperature and a composition detected by a temperature sensor and an oxygen analyzer, respectively, the data from which are used to control the flow and composition of the oxygenation and combustion fuel streams. The system may also include a gas turbine with an expander and having a load and a load controller in a feedback arrangement.

主权项

1. A system, comprising:
a combustor that includes a combustion fuel port, an oxygen supply port, a diluent supply port, and a combustion products output port; an oxygen analyzer that measures an amount of oxygen in the combustion products stream after exiting the combustor through the combustion products output port; and a control system that:
controls a flow rate of a combustion fuel stream entering the combustor through the combustion fuel port,controls a flow rate of an oxygen supply stream entering the combustor through the oxygen supply port, andadjusts a proportioning factor between the flow rate of the oxygen supply stream and the flow rate of the combustion fuel stream, wherein adjustment of the proportioning factor is based on the amount of oxygen in the combustion products stream determined by the oxygen analyzer.