Some embodiments of the present disclosure relate to a method of regenerating at least one filter medium comprising: providing at least one filter medium, wherein the at least one filter medium comprises: at least one catalyst material; and ammonium bisulfate (ABS) deposits, ammonium sulfate (AS) deposits, or any combination thereof; flowing a flue gas stream transverse to a cross-section of a filter medium, such that the flue gas stream passes through the cross section of the at least one filter medium, wherein the flue gas stream comprises: NOx compounds comprising: Nitric Oxide (NO), and Nitrogen Dioxide (NO.sub.2); and increasing an NOx removal efficiency of the at least one filter medium after removal of deposits.

A supported catalyst for decomposing an organic substance that includes a support and a catalyst particle supported on the support. The catalyst particle contains a perovskite-type composite oxide represented by A.sub.xB.sub.yM.sub.zO.sub.w, where the A contains at least one selected from Ba and Sr, the B contains Zr, the M is at least one selected from Mn, Co, Ni and Fe, y+z=1, x≥0.995, z≤0.4, and w is a positive value satisfying electrical neutrality. A film thickness of a catalyst-supporting film supported on the support and containing the catalyst particle is 5 μm or more, or a supported amount as determined by normalizing a mass of the catalyst particle supported on the support by a volume of the support is 45 g/L or more.

Processes for reducing carbon monoxide levels in a carbon dioxide rich gaseous stream. The carbon dioxide rich stream is passed to a preferential oxidation zone to selectively convert carbon monoxide to carbon dioxide. Excess oxygen is consumed by reacting with hydrogen, which may be added or controlled based on PSA operating conditions upstream of the preferential oxidation zone. The preferential oxidation zone may be contained within a bed of a dryer.

A method, controller and computer readable storage medium for dosing ammonia in a selective catalytic reduction (SCR) system for reducing NO.sub.x emissions in a flue gas, are disclosed. The method generally includes calculating a running long term average of NO.sub.x emissions, calculating a running short term average of NO.sub.x emissions and automatically adjusting an instantaneous NOx setpoint based on the running long term and short term averages to ensure compliance with a permit limit. The ammonia dosing requirement is based on a chemical mass-balance approach, and accuracy is enhanced by adjusting for the NO.sub.2 to NO composition of NO.sub.x.

A plasma filter for treating a gas flow therethrough. The filter has a dielectric barrier plasma electrode assembly including a plurality of electrodes having a dielectric barrier layer coated thereon. The dielectric barrier plasma electrode assembly is configured to produce an atmospheric pressure plasma, A filtration medium is disposed on or between the electrodes, and a photocatalytic material is formed on surfaces of the filtration medium. Upon operation of the plasma filter, the plasma infiltrates voids in the filtration medium, and the gas flow through the filtration medium a) is exposed to reactive species of the plasma, b) interacts with the catalytic material, and c) is exposed to light generated from the plasma.

A product gas filter with a filter housing, into which product gas of a wood gas reactor is supplied, by means of a product gas line, and is discharged as clean gas through a clean gas line. Long-chain hydrocarbons in the product gas stream can be at least substantially reduced, and a high filter performance achieved, where the filter is divided gas-tight into two parts by a separating tray in such a way that the product gas line is delivered to the lower region and the clean gas line exits from the upper collecting space; at least two filter cartridges, each coupled individually to a compressed air line and compressed air source, project into the lower region; and a zeolite container is connected to the lower portion of the filter via a compressed air source connectable, Venturi nozzle and a lockable line.

One embodiment of the present disclosure describes an industrial system, which includes a control system with a predictive emissions monitoring system that facilitates determining a chemical level output from a selective catalytic reduction unit that reduces the chemical level in gaseous emissions produced by a combustion source using a selective catalytic reduction model. The control system tunes the selective catalytic reduction model by determining tuning parameters based at least in part on vendor information and tuning data determined via a tuning sequence. The tuning sequence includes operating the combustion source at a plurality of load levels, injecting a reactant into received gaseous emissions at each of the plurality of load levels in accordance with an injection rate provided in the vendor information; and determining an input chemical level to and an output chemical level from the selective catalytic reduction unit at each of the plurality of load levels.

Provided herein is a device for removing residual hydrogen peroxide or hydrazine from an effluent gas stream which includes a metal oxide scrubber material configured to react with residual process gases under increased temperatures. Also provided are systems and methods of using the same.

Centralizing the handling and manipulating of vaporization medium to a single subsystem that supplies multiple ammonia vaporizers allows for efficient and effective production of a corresponding vaporized ammonia stream containing a controlled quantity of ammonia. These vaporized ammonia streams can then be used in conjunction with ammonia-consuming devices to reduce NOx in NOx-containing exhaust streams from multiple furnaces.

A pollution reduction system includes a catalytic converter, fabric filtration and a plurality of cyclonic separators to effectively reduce CO, VOCs and particulate matter emissions from biomass fuel-fired furnaces, while efficiently extracting heat from exhaust gas.