The present invention pertains to a catalyst for use in the selective catalytic reduction (SCR) of nitrogen oxides cornprising: —a ceramic candle filter substrate and—a coating which comprises an oxidic metal carrier comprising an oxide of titanium and a catalytic metal oxide which comprises an oxide of vanadium wherein the mass ratio vanadium/titanium is 0.03 to 0.27, —wherein the mass ratio is calculated based on the mass of vanadium metal and titanium metal, and—wherein the catalyst comprises from about 1 to about 10% by weight of the catalytically active material, and—wherein the catalytic metal oxide is adsorbed onto the surface of the oxidic metal carrier.

A sorbent product, including from about 1 wt % to about 99 wt %, based on the total weight of the sorbent product, of at least one base sorbent material; and from about 1 wt % to about 99 wt %, based on the total weight of the sorbent product, of at least one binder. The sorbent product may further include at least from about 0 wt % to about 99% wt %, based on the total weight of the sorbent product, of at least one additional additive. Methods for making same and methods and systems for controlling multiple pollutants are also included.

A sorbent product, including from about 1 wt % to about 99 wt %, based on the total weight of the sorbent product, of at least one base sorbent material; and from about 1 wt % to about 99 wt %, based on the total weight of the sorbent product, of at least one binder. The sorbent product may further include at least from about 0 wt % to about 99% wt %, based on the total weight of the sorbent product, of at least one additional additive. Methods for making same and methods and systems for controlling multiple pollutants are also included.

The invention provides a process for preparing a methane oxidation catalyst comprising a mechanochemical treatment, a methane oxidation catalyst thus prepared and a method of oxidizing methane.

In order to limit exposure of a fan (50) and of eventually other internal components to oxidizing species induced by the operation of an ozone generator (70), a gas treatment system (10) of the type operating alternately in treatment mode and in regeneration mode comprises two adsorption devices (60, 80) which are arranged respectively upstream and downstream of the ozone generator.

A method of forming an SSZ-13 zeolite in a hydrothermal synthesis yields an SSZ-13 zeolite that exhibits a silica to alumina (SiO.sub.2:Al.sub.2O.sub.3) molar ratio (SAR) that is less than 16:1; has a morphology that includes one or more of cubic, spheroidal, or rhombic particles with a crystal size that is in the range of about 0.1 micrometer (μm) to 10 μm. This SSZ-13 also exhibits a Brönsted acidity that is in the range of 2.0 mmol/g to 3.4 mmol/g as measured by ammonia temperature programmed desorption. A catalyst formed by substituting a metal into the framework of the zeolite provides for low temperature light-off of the NOx conversion reactions, while maintaining substantial performance at higher temperatures demonstrating hydrothermal stability.

The present disclosure provides systems and methods for nitric oxide (NO) generation and/or delivery. In some aspects, a nitric oxide generation system comprises a plasma chamber configured to ionize a reactant gas including nitrogen and oxygen to form a product gas that includes NO, a scrubber downstream from the plasma chamber and having a volume at least partially containing NO.sub.2 scrubbing material, and a flow controller downstream of the scrubber configured to control the flow of product gas from the scrubber to a delivery device. A pump is configured to convey product gas from the plasma chamber into the scrubber and is configured to pressurize the product gas in the scrubber when the flow controller is positioned to restrict the flow of product gas from the scrubber. The pressurized product gas accumulates within the scrubber and is at least partially scrubbed of NO.sub.2 prior to passage through the flow controller.

A boiler for co-firing municipal solid waste and short timber for cultivating fungus includes a boiler chamber and fire grate, where the boiler chamber comprises a furnace, a reburning chamber and a third flue, a front arch and a rear arch are arranged on a lower portion of the furnace and located above the fire grate, and a short timber for cultivating fungus feeding device is arranged on a lower portion of a front wall of the furnace. The short timber for cultivating fungus feeding device includes a star-shaped feeding machine and a hopper, a skin expansion joint is arranged between the star-shaped feeding machine and the hopper, and an air pipe is arranged on the hopper. A layer of a plurality of boiler internal desulfurization desulfurization nozzles and two layers of a plurality of Polymer Non-Catalytic Reduction denitration nozzles are arranged in a height direction of the furnace.

In one embodiment, a method for separating acidic gases from a gas mixture includes exposing the gas mixture to a separation membrane at an elevated temperature, where the separation membrane includes a porous support and at least one molten alkali metal hydroxide disposed within pores of the porous support.

A three-way catalyst article, and its use in an exhaust system for internal combustion engines, is disclosed. The catalyst article for treating exhaust gas comprising: a substrate; and a first catalytic region on the substrate; wherein the first catalytic region comprises a first PGM component and a first inorganic oxide, wherein the IR intensity ratio of bridge CO to atop CO on the PGM component is less than 3:1 under standard CO adsorption procedure.