Material handling systems for fluids are disclosed herein. The fluid may be a liquid, solution, slurry, or emulsion. The systems receive as inputs the fluid, steam, and water. These feed into a surge tank where additives can be introduced. The steam and water are used to control some physical properties and enable the distribution of the fluid as desired. In particular embodiments, the system is useful for handling materials to be sent to a dual-phase fuel feeder for combustion in a fluidized-bed boiler, the energy being used to generate electricity or in various production processes.

The present invention relates to a hybrid domestic fireplace, configured to burn a fuel mixture of a first combustible fuel and a second combustible fuel, comprising a combustible long chain hydrocarbon fuel, the fireplace comprising: a mixing device, configured to mix the first fuel and the second fuel to form the fuel mixture and, a first fuel supply, configured to supply the first fuel to the mixing device, a second fuel supply, configured to supply the second fuel to the mixing device, and a burner, configured to combust the fuel mixture, wherein the mixing device is further configured to heat the second fuel to a mixing temperature, and wherein the mixing device is configured to mix the first fuel with the heated second fuel to form the fuel mixture.

Method for optimizing the limitation of dust emissions from a gas turbine or combustion plant comprising a line for supplying liquid fuel oil, a line for generating fuel oil atomizing air, and a central controller, wherein: a first definition step, starting from a nominal temperature of the fuel oil and a nominal pressure ratio of the atomizing air of the fuel oil, and by controlling the injection of the soot inhibitor, of a nominal operating point corresponding to the maximum permissible level of emitted dust; a second step of controlling a first parameter, taken from the group of the fuel oil temperature and the pressure ratio of the fuel oil atomizing air, in order to reach another operating point; and a third step of controlling the soot inhibitor injection to achieve the maximum permissible level of emitted dust.

The processes and systems herein described enable the use of CO.sub.2 to handle heavy oil fractions. A significant reduction in the requisite energy to maintain such a fuel in fluid form is attained. The energy reduction from herein described residue handling systems facilitate increased combustion plant efficiency and reduced CO.sub.2 emissions. The residue handling system is useful in refineries, power generation plants and other processes utilizing heavy oil residues as a feed.

The present invention relates to a burner assembly for a domestic fireplace, configured to burn a mixture of a first combustible fuel and a second combustible fuel, comprising a combustible long chain hydrocarbon fuel, the assembly comprising at least one burner and a mixing device, the mixing device comprising: a housing, defining a mixing interior, at least one discharge opening in the housing, connected to the at least one burner and configured to provide access from the mixing interior towards the burner, a first fuel supply, projecting into the mixing interior and configured to supply the first fuel into the mixing interior, and a second fuel supply, projecting into the mixing interior and configured to supply the second fuel into the mixing interior, characterized in that, the mixing device further comprises: a heating element, e.g. a second heating element, arranged at least partially in the mixing interior and configured to heat the second fuel to a mixing temperature, wherein the mixing device is configured to mix the first fuel with the heated second fuel to form the fuel mixture, and wherein the at least one burner is configured to combust the fuel mixture.

Methods and apparatus to automatically control oil burning operations are disclosed. An example apparatus includes a first control valve to control a flow of a first fluid into a fluid mixture to be burned; and a second control valve to control a flow of a second fluid into the fluid mixture. The example apparatus further includes a meter to monitor a property of the fluid mixture in substantially realtime, the property indicative of a flammability of the fluid mixture, at least one of the first control valve or the second control valve to be automatically adjusted based on a measured value of the property of the fluid mixture

The present application provides a gas turbine engine for combusting a flow of hydrocarbon based liquid fuel with vanadium contaminants therein. The gas turbine engine may include a combustor for combusting the flow of hydrocarbon based liquid fuel, an upstream magnesium mixing system for mixing a flow of magnesium with the flow of hydrocarbon based liquid fuel, a turbine, an air extraction system in communication with the turbine, and a downstream magnesium mixing system for providing the flow of magnesium to the air extraction system.

The processes and systems herein described enable the use of CO.sub.2 to handle heavy oil fractions. A significant reduction in the requisite energy to maintain such a fuel in fluid form is attained. The energy reduction from herein described residue handling systems facilitate increased combustion plant efficiency and reduced CO.sub.2 emissions. The residue handling system is useful in refineries, power generation plants and other processes utilizing heavy oil residues as a feed.

Delivery mechanisms and distribution mechanisms are varied, adjusted, or modified based on a desired fuel application. Dimensions, flow rates, pressures, viscosities, temperatures, friction parameters, and combinations thereof may be varied, adjusted or modified. The fuel application may include a scrubber application. The scrubber application uses a delivery mechanism to deliver a wet or dry scrubbing agent at a low pressure to a distribution mechanism. The distribution mechanism distributes the scrubbing agent within the scrubbing chamber. The delivery mechanism is adjustable based on properties of a feedstock utilized to deliver the scrubbing agent, properties of a propellant, or properties of the scrubbing application. The distribution mechanism is adjustable based on desired distribution characteristics including shape, size, or velocity of drops, mists, or particles distributed. Location, processes, and by-products associated with output of the scrubbing application may be based on a stage of the scrubbing application.