An apparatus for firing and combusting syngas is described. The apparatus comprises a vessel having a first chamber with an inlet for receiving syngas from a gasifier, an ignition chamber provided with an auxiliary burner to ignite the diluted syngas; a combustion chamber provided with an inlet for introducing a combustion agent for combusting the ignited syngas and a retention chamber for retaining the resulting combustion products for a predetermined residence period, the retention chamber being provided with an outlet for withdrawing said combustion products. The first chamber is configured to receive a diluent fluid to dilute the syngas to a predetermined composition below a lower explosive limit (LEL). Preferably the diluent fluid is an oxygen-containing gas.

A combustion method in which heated flue gas heats a regenerator through which a mixture of fuel and flue gas is then passed to undergo endothermic reactions that produce syngas which is fed into a furnace together with a motive gas stream.

A method for heating a partial oxidation reactor system including a burner system is provided. The method includes utilizing a flue gas stream derived from combustion process using an oxygen rich stream and a hydrocarbon fuel stream. The method may include a first burner system utilized during normal plant operation performing partial combustion, a second burner system utilized for heating during start-up phase performing complete combustion. The first burner system may be different than, or the same as, the second burner system. The method may include a second flue gas stream exiting the partial oxidation reactor, and wherein at least a portion of the second flue gas stream is recycled back to the burner system. The method may include a third flue gas stream derived from a downstream located equipment, wherein at least of portion of the third flue gas stream is recycled back to the burner system.

A system and method uses a combustor and gasifier to burn a primary dirty fuel, such as waste materials or high-polluting fossil fuels, and a secondary low-polluting fuel, such as biomass fuels, for co-generation of electricity while reducing harmful emissions. The primary fuel is burned at least partially through the use of an improved burner tube. Dirty exhaust from a combustor is scrubbed by a gasifier by reforming the combustors exhaust gases into a clean-burning producer gas (syn-gas). The secondary fuel and oxygen are added to the dirty exhaust in the gasifier to create gas, char and ash. The gas powers an engine or turbine that turns a generator, or a boiler, Stirling engine, or Organic Rankine Cycle power plant, and releases a cleaner exhaust.

The present disclosure relates to systems and methods that are useful for controlling one or more aspects of a power production plant. More particularly, the disclosure relates to power production plants and methods of carrying out a power production method utilizing different fuel chemistries. Combustion of the different fuel mixtures can be controlled so that a defined set of combustion characteristics remains substantially constant across a range of different fuel chemistries.

The present disclosure provides a burner for a reduction reactor, the reduction reactor has a reaction space formed therein, wherein each burner has a fuel feeding hole and multiple oxygen feeding holes formed therein, wherein each burner has an elongate combustion space formed at one end of a head portion thereof, the combustion space fluid-communicating with the reaction space of the reactor, wherein the elongate combustion space has a length such that oxygen supplied from the oxygen feeding holes thereto is completely consumed via oxidation or combustion with fuels supplied from the fuel feeding hole thereto only in the elongate combustion space upon igniting the burner.

In a method and system for the combustion of ammonia, wherein a first combustion chamber receives ammonia and hydrogen in controlled proportions, and an oxygen-containing gas such as air. Combustion of the ammonia and hydrogen produces nitrogen oxides among other combustion products. A second combustion chamber receives the nitrogen oxides along with further ammonia and hydrogen in further controlled proportions along with further oxygen-containing gas such as air. The nitrogen oxides are combusted into nitrogen and water.

A burner for a gas turbine, having a combustion chamber, a first injector adapted to inject a first fuel into the combustion chamber and a second injector adapted to inject a second fuel being less reactive than the first fuel into the combustion chamber, wherein the burner is adapted to premix the fuels with an air flow before the fuel enter the reaction zone of the combustion chamber such that a first fuel flow of the first fuel has a first premixing stream line and a second fuel flow of the second fuel has a second premixing stream line, wherein each of the premixing stream lines begins with the beginning of the premixing with the air flow and ends at the location where the fuel enters the reaction zone and the length of the second premixing stream line is longer than the length of the first premixing stream line.

A furnace for treating metal parts includes a treatment atmosphere provided at an interior of the furnace; at least one burner operatively associated with the furnace for heating the treatment atmosphere to a temperature below a melting point of the metal parts; a passageway interconnecting the interior and the at least one burner, the passageway directing at least a portion of the heat treatment atmosphere exhausted from the furnace interior to the at least one burner for combustion; and a source of oxygen in fluid communication with the at least one burner for enriching combustion of the heat treatment atmosphere portion with oxygen at said burner. A related method is also provided.

A combustion method in which heated flue gas heats a regenerator through which a mixture of fuel and flue gas is then passed to undergo endothermic reactions that produce syngas which is fed into a furnace together with a motive gas stream.