Emissions control assemblies including substrates defining a plurality of channels that are configured to receive engine exhaust passing through the substrates, and heating elements configured to heat the substrates.

Emissions control assemblies including substrates defining a plurality of channels that are configured to receive engine exhaust passing through the substrates, and heating elements configured to heat the substrates.

A piping system for recovery heat energy from an exhaust gas in a heat recovery furnace, the piping system comprising a piping inlet, where the piping inlet transects a wall of a stack zone of the heat recovery furnace, a piping run, the piping run fluidly connected to the piping inlet, and a piping outlet, the piping outlet fluidly connected to the piping run, where the piping outlet transects the wall of the stack zone of the heat recovery furnace, where the piping system is positioned in a stack zone of the heat recovery furnace between a stack inlet and a stack outlet.

A piping system for recovery heat energy from an exhaust gas in a heat recovery furnace, the piping system comprising a piping inlet, where the piping inlet transects a wall of a stack zone of the heat recovery furnace, a piping run, the piping run fluidly connected to the piping inlet, and a piping outlet, the piping outlet fluidly connected to the piping run, where the piping outlet transects the wall of the stack zone of the heat recovery furnace, where the piping system is positioned in a stack zone of the heat recovery furnace between a stack inlet and a stack outlet.

A temperature measurement system includes at least one grounded thermocouple operable to measure a temperature, a processor in communication with the grounded thermocouple and configured to measure the temperature, and a power supply coupled to the grounded thermocouple and the processor. The power supply is configured to receive a voltage input and generate an isolated voltage. The grounded thermocouple is selectively biased with the isolated voltage from the power supply during a temperature measurement.

A combustion system including a unit for producing oxidizing gas, a combustion apparatus, a unit for condensing the combustion fumes by bringing the combustion fumes into contact with at least one coolant liquid, a recycler, and a unit for providing molecular oxygen. The unit for producing oxidizing gas makes it possible to supply the combustion apparatus with an oxidizing gas originating from the mixing of molecular oxygen and the recycled portion of the dehumidified gas. The combustion system also includes a regulating unit having the function of automatically regulating the temperature of the coolant liquid of the condensing unit and/or a heater for heating the recycled portion of the dehumidified gas.

A combustion system including a unit for producing oxidizing gas, a combustion apparatus, a unit for condensing the combustion fumes by bringing the combustion fumes into contact with at least one coolant liquid, a recycler, and a unit for providing molecular oxygen. The unit for producing oxidizing gas makes it possible to supply the combustion apparatus with an oxidizing gas originating from the mixing of molecular oxygen and the recycled portion of the dehumidified gas. The combustion system also includes a regulating unit having the function of automatically regulating the temperature of the coolant liquid of the condensing unit and/or a heater for heating the recycled portion of the dehumidified gas.

The present invention is generally related to a system and method that efficiently and effectively removes mercury, dioxin, and furan while also reducing granule activated carbon (GAC) bed fires on high temperature municipal fluid bed sludge incinerators. In this manner, the United States Environmental Protection Agency (EPA) Maximum Achievable Control Technology LLLL (MACT LLLL) emission limits on mercury, dioxin, and furans can be met for new high temperature fluid bed municipal sludge incineration plants, while the likelihood of GAC fires can be reduced.

The present invention is generally related to a system and method that efficiently and effectively removes mercury, dioxin, and furan while also reducing granule activated carbon (GAC) bed fires on high temperature municipal fluid bed sludge incinerators. In this manner, the United States Environmental Protection Agency (EPA) Maximum Achievable Control Technology LLLL (MACT LLLL) emission limits on mercury, dioxin, and furans can be met for new high temperature fluid bed municipal sludge incineration plants, while the likelihood of GAC fires can be reduced.

A method for improving effectiveness of a steam generator system includes providing air to an air preheater in excess of that required for combustion of fuel and providing the air at a mass flow such that the air preheater has a cold end metal temperature that is no less than a water dew point temperature in the air preheater and such that the cold end metal temperature is less than a sulfuric acid dew point temperature. The method includes mitigating SO.sub.3 in the flue gas which is discharged directly from the air preheater to a particulate removal system and then directly into a flue gas desulfurization system. Flue gas reheat air is fed from the air preheater to heat the flue gas prior to entering a discharge stack to raise the temperature of the flue gas to mitigate visible plume exiting and to mitigate corrosion in the discharge stack.