The present invention relates to a device and a method for chemical looping combustion, for which the end of the intake duct (4) opening out within the chamber of the separator (1) is inclined with respect to a horizontal plane (H).

Example furnaces and methods related thereto are disclosed herein. In an embodiment, the furnace includes a burner box including at least one burner configured to combust a fuel/air mixture. In addition, the furnace includes a first blower including an inlet nozzle having an air inlet and fuel inlet. The inlet nozzle is configured such that operation of the first blower is to pull air and fuel into the inlet nozzle to produce the fuel/air mixture at a fuel/air ratio that is configured to produce flue products having less than 14 Nano-grams per Joule of nitrogen oxides when combusted. Operation of the first blower is configured to push the fuel/air mixture into the burner box. Further, the furnace includes a heat exchanger assembly fluidly coupled to the burner box through a vestibule, and a second blower configured to pull the flue products through the heat exchanger assembly.

Example furnaces and methods related thereto include a burner box including at least one burner configured to combust a fuel/air mixture. In addition, the furnace includes a first blower including an inlet nozzle having an air inlet and fuel inlet. The inlet nozzle is configured such that operation of the first blower is to pull air and fuel into the inlet nozzle to produce the fuel/air mixture at a fuel/air ratio that is configured to produce flue products having less than 14 Nano-grams per Joule of nitrogen oxides when combusted. Operation of the first blower is configured to push the fuel/air mixture into the burner box. Further, the furnace includes a heat exchanger assembly fluidly coupled to the burner box through a vestibule, and a second blower configured to pull the flue products through the heat exchanger assembly.

The upstream-side wall portion 54 includes, in the circumferential direction thereof, a first region 31 where air inlets 30 are formed at a lower density, and a second region 32 which is disposed at a position offset from the first region 31 in the circumferential direction, and in which the air inlets 30 are formed at a higher density than in the first region 31.

A fuel combustion apparatus 2 according to the present invention includes: a combustion cylinder 4; a fuel feed unit 6 that introduces a swirling flow of an air-fuel mixture into the combustion cylinder; an ignition unit 10 including an igniter 32 located in the combustion cylinder 4; an ion detection unit 12 including a detector 40 located in the combustion cylinder 4; and a control unit 14 that adjusts a mixing ratio of the fuel based on a detection result obtained by the ion detection unit 12. Preferably, the fuel is ammonia. Preferably, the detector 40 is located in the vicinity of the igniter 32.

The present invention relates generally to an apparatus for housing a chemical looping process comprising of at least one fluidized-bed combustor reactor, at least one entrained riser, at least one particle separator, optionally at least one particle holding reactor, at least one moving-bed reactor, at least one standpipe, at least one L-valve system for solid flow control and interconnecting sections.

A reactor safety device includes a leg and a well. The leg includes an inlet and an outlet. The inlet is in fluid communication with an outlet of a reactor configured to operate at a pressure less than atmospheric pressure at a location of the reactor safety device. The well includes an inlet in fluid communication with the outlet of the leg. There is a first level in the leg and a second level in the well. The outlet of the leg is vertically lower than the second level. A level sensor is configured to monitor the first level and a controller in communication with the level sensor, a fuel inlet into the reactor, and an oxidant inlet into the reactor. The controller is configured to close the fuel inlet and the oxidant inlet when the first level changes by a predetermined amount.

A reactor safety device includes a leg and a well. The leg includes an inlet and an outlet. The inlet is in fluid communication with an outlet of a reactor configured to operate at a pressure less than atmospheric pressure at a location of the reactor safety device. The well includes an inlet in fluid communication with the outlet of the leg. There is a first level in the leg and a second level in the well. The outlet of the leg is vertically lower than the second level. A level sensor is configured to monitor the first level and a controller in communication with the level sensor, a fuel inlet into the reactor, and an oxidant inlet into the reactor. The controller is configured to close the fuel inlet and the oxidant inlet when the first level changes by a predetermined amount.

Aspects of the invention are directed to systems and apparatuses for efficiently burning fuels. According to one aspect of the invention, apparatus for efficiently burning hydrocarbons includes a housing having a first opening for receiving a fuel, a second opening for expelling the fuel, and a tubular passageway extending between the first opening and the second opening. The tubular passageway includes a central region and an outer region surrounding the central region. The apparatus also includes a plurality of magnets disposed within the passageway. Each of the magnets has a spherical or an ovoid shape. The plurality of magnets define void spaces for passing the fuel such that a central flow rate of the fuel in the central region of the passageway is equivalent to the an outer flow rate of the fuel in an outer region of the passageway.

A combustion system includes a fuel and oxidant source and a flame holder. The flame holder includes a plurality of discrete slats arranged in parallel defining combustion channels between adjacent slats. The fuel and oxidant source outputs fuel and oxidant into the combustion channels. The flame holder holds a combustion reaction of the fuel and oxidant in the combustion channels.