Disclosed herein is a flue pipe system comprising a flue pipe, a first electrode, a second electrode, a third electrode, and a voltage supply. The flue pipe can define a fluid flow path through an interior volume of the flue pipe. The voltage supply can be connected to the first electrode, the second electrode, and the third electrode. The voltage supply can form a first electrical circuit comprising the voltage supply, the first electrode, and the third electrode and a second electrical circuit comprising the voltage supply, the second electrode, and the third electrode. The first electrical circuit can form a streamer corona discharge between the first electrode and the third electrode in the interior volume such that the fluid flow path flows therethrough. The second electrical circuit can form a flow of ions between the second electrode and the third electrode along the interior surface of the flue pipe.

The invention relates to an apparatus for treating waste material including organic components and radioactive agents. In the apparatus the waste material including organic components and radioactive agents are gasified at temperature between 600-950° C. in a fluidized bed reactor to form a gaseous material. The gaseous material is than cooled in a water quenching device so that temperature is between 300-500° C. after the cooling. The solid fraction including radioactive agents is removed from the gaseous material in a in at least one filtration device. A gas scrubbing device then removes sulphur by scrubbing the treated gaseous material after the filtration in order to form a treated gaseous material.

A process for cleaning process gas removes sulfur oxides (SOx), nitrogen oxides (NOx), and particulate matter (PM) to produce a tail gas substantially free of these pollutants. The process oxidizes and absorbs SOx and NOx for storage as liquid acids. In some embodiments a PM removal stage and/or a SOx removal stage are provided in a close-coupled higher-pressure environment upstream from a turbocharger turbine. The process has example application in cleaning exhaust gases from industrial processes and large diesel engines such as ship engines.

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.

An apparatus and a method is provided for continuously drying bulk goods, in particular wood fibers and/or wood chips, in a dryer, wherein the drying vapors are led to a dryer circuit, in which the drying vapors are indirectly heated via a heat-exchanger and are conducted to the dryer again.

The present invention provides environmental equipment which is able to remarkably reduce operating costs and a power generation system comprising same, comprising: a boiler; a power generation unit for generating electricity by steam generated from the boiler; first denitrifying equipment to which exhaust gas is delivered from the boiler and which sprays a reducing agent into the exhaust gas to denitrify the exhaust gas; a low-low temperature electrostatic precipitator for collecting dust of the exhaust gas provided from the first denitrifying equipment; second denitrifying equipment which sprays a reducing agent into the exhaust gas provided from the low-low temperature electrostatic precipitator to secondarily denitrify the exhaust gas and allows the exhaust gas to be provided towards a smokestack.

Provided is a combustion system using a catalyst having better denitration efficiency at low temperatures, during a selective catalytic reduction reaction in which ammonia is used as a reducing agent.

This combustion system comprises: a combustion device that combusts fuel; an exhaust path through which flows exhaust gas generated from the combustion of fuel in the combustion device; a dust collection device that is arranged on the exhaust path and collects soot/dust in the exhaust gas; and a denitration device that is arranged on the exhaust path and removes nitrogen oxides from the exhaust gas by means of a denitration catalyst, wherein the denitration device is arranged downstream of the dust collection device on the exhaust path, and the denitration catalyst contains vanadium oxide, has a carbon content of 0.05 wt % or more, and has a defect site in which oxygen deficiency occurs in a crystal structure.

Sorbent compositions containing calcium and iodine are added to coal to mitigate the release of mercury and/or other harmful elements into the environment during combustion of coal containing natural levels of mercury.

Provided is a combustion system using a catalyst having better denitration efficiency at low temperatures, during a selective catalytic reduction reaction in which ammonia is used as a reducing agent.

This combustion system comprises: a combustion device that combusts fuel; an exhaust path through which flows exhaust gas generated from the combustion of fuel in the combustion device; a dust collection device that is arranged on the exhaust path and collects ash dust/dust in the exhaust gas; and a denitration device that is arranged on the exhaust path and removes nitrogen oxides from the exhaust gas by means of a denitration catalyst, wherein the denitration device is arranged downstream of the dust collection device on the exhaust path, and the denitration catalyst contains vanadium oxide including vanadium pentoxide and has a defect site in which an oxygen atom is deficient in a crystal structure of the vanadium pentoxide.

A system and method for plasma treatment comprises a radiofrequency chamber, a microwave source configured to provide energy to the radiofrequency chamber, a reaction chamber configured to accept a treatment flow, a plasma dispensation assembly configured in the reaction chamber, the plasma dispensation assembly being powered by energy from the radiofrequency chamber, and a collection chamber for collecting treated material from the reaction chamber. The systems and methods can be used for treatment of various treatment flows.