Mineral additive blend compositions and a method for operating a furnace are provided in order to avoid combustion problems such as agglomeration, deposition, corrosion and reducing emissions. A method for operating a furnace, such as a fluidized-bed reactor, pulverized-fuel combustor, and grate combustor, includes introducing fuel and a mineral additive blend including a clay and a functional mineral into the furnace.

The invention is directed to a method for reducing NOx emission from an industrial process furnace comprising a firebox containing a burner and a tube, which method comprises subjecting an oxidant gas and/or a fuel gas (1) to humidification, thereby obtaining a humidified gas; and pre-heating the humidified gas with an external waste heat stream (20) before feeding the gas to the burner.

This disclosure presents a clean burning flare stack, or gas flare, especially the tip portion thereof. The gas flare tip is air assisted to ensure clean burning. The disclosed gas flare tip provides smokeless clean burning of released gases. For example, the gas flare tip burns the released gases in a lean burning condition such that sufficient air is supplied to the surges of gases. In addition, the gas flare tip, by using a low pressure blower mixing chamber, is capable of handling low pressure gases and high pressure gases. As such, different flow rates may be provided to the gas flare tip when different amounts of low pressure and high pressure flammable gases are mixed with sufficient blower air to provide a clean burning condition. The disclosed smokeless gas flare is thus environmentally friendly and aesthetically appealing.

The present invention refers to a system, a method and a device to optimize the efficiency of the combustion of gases for the production of clean energy comprising a magnetic nucleus (30) and inlet and outlet ducts (41a, 42a), the inlet and outlet ducts (41a, 42a) being configured to receive gases, the gases alternately establishing flows between the inlet ducts (41a) and the outlet ducts (42a) and vice-versa, the magnetic nucleus (30) being configured to generate and to expose the gases within the inlet and outlet ducts (41a, 42a) to magnetic fields (35), the alternation of flows between the inlet and outlet ducts (41a, 42a) and the exposure to magnetic fields (35) promoting acceleration of the hydrogen atoms and ions of oxygen and argon, promoting the reduction of the radii of the orbits of the electrons of the hydrogen around their nuclei and provoking the release of potential energy of the electrons and corresponding increase of the kinetic energy of the nuclei of the gas molecules, in such a way to optimize (increase) the heating power of the gases (201, 202).

A control device of a hydrogen gas burner device sets a target flow rate of a hydrogen gas such that a flow rate of the hydrogen gas decreases as a temperature of the hydrogen gas becomes higher, based on the temperature of the hydrogen gas and a needed quantity of heat of the hydrogen gas during the combustion, sets a target flow speed such that the flow speed of the hydrogen gas released from a combustion nozzle via a flow speed regulator becomes a flow speed based on the target flow rate and the flow speed of the hydrogen gas increases as a value of the target flow rate decreases, controls the flow rate regulator such that the flow rate of the hydrogen gas reaches the target flow rate, and controls the flow speed regulator such that the flow speed of the hydrogen gas reaches the target flow speed.

An exemplary embodiment can be an exemplary method, which can include, for example, generating a cool flame(s) using a plasma-assisted combustion, and maintaining the cool flame(s). The cool flame(s) can have a temperature below about 1050 Kelvin, which can be about 700 Kelvin. The cool flame(s) can be further generated using a heated counterflow burning arrangement and a an ozone generating arrangement. The heated counterflow burning arrangement can include a liquid fuel vaporization arrangement. The ozone generating arrangement can include a micro plasma dielectric barrier discharge arrangement. The plasma-assisted combustion can be generated using (i) liquid n-heptane, (i) heated nitrogen, and (iii) ozone.

Thermochemical regeneration is enhanced by injecting fuel gas to entrain recycled flue gas that passes out of a regenerator to form a mixture that is impelled into the other regenerator.

Operation of a thermochemical regenerator to generate soot or to increase the amount of soot generated improves the performance of a furnace with which the thermochemical regenerator is operated.

Disclosed are methods for operating a glass furnace, the method comprises the steps of feeding a non-pre-reformed hydrocarbon fuel gas stream to a pre-reformer forming a pre-reformed hydrocarbon fuel gas stream, feeding the pre-reformed hydrocarbon fuel gas stream to burners of the furnace, combusting oxidant and the pre-reformed hydrocarbon fuel gas with the burners to produce flue gas, heating air through heat exchange with the flue gas at a recuperator, and transferring heat from heated air to pre-reformer tubes of the pre-reformer. A glass furnace system is also disclosed.

Operation of a thermochemical regenerator to generate soot or to increase the amount of soot generated improves the performance of a furnace with which the thermochemical regenerator is operated.