Nitrous Oxide Capture TRIZ Cases

Biological platforms consume greenhouse gases at ambient temperatures, bypassing high-energy thermal catalysis.

A selective reduction catalyst system estimates downstream NOx concentration using transient extraction filters and upstream sensor data.

Ammonia slip catalyst converts excess ammonia to nitrogen using a platinum-palladium blend, suppressing harmful nitrous oxide byproducts.

Segmenting off-gas into parallel reactors with alternating catalyst replacement resolves efficiency loss from aging.

Replacing toxic vanadium with a mixed oxide support reduces N2O formation while maintaining ammonia selectivity.

Direct copper exchange replaces residual sodium ions in chabazite, eliminating multi-step processes and boosting hydrothermal stability.

A control unit adjusts ammonia-releasing reducing agent metering using model-based predictions and sensor feedback.

A fixed displacement pump dosing system uses a pressure sensor assembly to calculate flow rate based on detected pressure and stored calibration values.

A two-layer ammonia decomposition catalyst uses noble metal and zeolite layers to break down ammonia into nitrogen and water.

Fe-AEI zeolite catalyst decomposes nitrous oxide while maintaining hydrothermal stability and selectivity.

Pulsed reductant injection prevents buildup and reduces NOx emissions during low temperature operation by dynamically adjusting dosing cycles.

Segmented SCR layers in a bi-layer coating reduce nitrous oxide formation while protecting platinum from deactivation.

A Cu-Fe molecular sieve SCR catalyst prepared via ion exchange and impregnation.

Heated NiO catalyst removes N2O interference from gas samples, increasing radiocarbon detection sensitivity and enabling on-site monitoring.

Segmented conduits with varying diameters disperse reductants uniformly within space-constrained exhaust systems, improving NOx reduction efficiency.

Segmenting the zeolite membrane into a low-density layer and compact layer resolves the contradiction between permeability and defect occurrence.

Novel temperature swing adsorption cycle recovers co-adsorbed NF3 using inert purge gas.

A multifunctional catalyst combines platinum group metals on zirconia with vanadium-iron mixed oxides on titania to drive hydrocarbon oxidation and NOx reduction.

Base metal oxide catalyst resists hydrothermal degradation and water inhibition to maintain stability across a broad temperature range.

A boiler lance with a cooling system prevents reagent evaporation within the hose, ensuring effective mixing with flue gas.

Vaporizer breaks down large urea droplets into smaller particles, improving SCR catalyst efficiency and reducing nitrogen oxide emissions.

A composite catalyst coating containing manganese, iron, and copper-CHA zeolite converts nitrogen oxides in diesel exhaust streams.

Segmenting flue gas paths bypasses denitration to raise drying temperatures, expanding usable fuel types while maintaining emission limits.

A monolithic catalyst uses sequential rhodium and palladium regions to purify exhaust gases during engine operation.

Oxidation catalyst with less than 100 g/ft3 precious metal loading paired with a selective catalytic reduction component.

Metal-organic framework solids reduce nitrogen oxides via accessible metal centers without external reducing agents.

Optimized copper acetate concentration and liquid-to-solid ratio stabilize NOx conversion activity in chabazite molecular sieves.

A process reduces sulfate and nitrate waste using iron-carbon materials to produce elemental sulfur vapor.

A catalyst blend of metal-promoted and un-promoted zeolites enhances selective catalytic reduction performance.

In-exhaust pipe fuel injection supplies fuel to burn trapped particulate matter in the exhaust gas processing device.

A gas delivery system measures oxygen content to ensure mixture homogeneity.

External metal oxide dispersion on small-pore zeolites prevents dealumination, maintaining NOx conversion under hydrothermal stress.

Segmenting the catalyst layer into ceria-rich and ceria-free zones balances oxygen storage capacity with NOx purification performance.

Supported catalyst particles convert carbon monoxide to carbon dioxide, reducing harmful emissions in mainstream smoke.

A segmented coating uses a reflective base layer to boost photocatalytic titanium dioxide activity for faster nitrogen oxide removal.

Placing an NH3-SCR catalyst downstream of a lean NOx trap converts stored ammonia into a reductant, eliminating ammonia slip while boosting net NOx conversion.

Parallel housings connected by an inclined communicating pipe form a compact N-shaped flow passage.

Lanthanum copper manganese mixed oxides decompose nitrogen protoxide while maintaining thermal stability above 700 degrees Celsius.

Segmented iron and copper molecular sieves in a zoned coating configuration achieve high NOx conversion while suppressing nitrous oxide formation.

Composite catalysts maintain high thermal stability at 900°C to decompose nitrous oxide emissions from acid plants without structural collapse.

Simultaneous metal loading on zeolite supports creates stable catalysts for N2O decomposition.

Potassium dispersed on NiFe2O4 spinel oxide decomposes NOx to N2 at 400-650°C, eliminating reductant requirements and improving fuel economy.

A two-stage combustion process reduces nitrogen oxide formation by injecting a gas-water mixture to lower exhaust gas calorific value.

Copper-doped cerium oxide nanoparticles decompose nitrogen oxides at ambient temperature, eliminating high-temperature requirements and reducing agents.

A catalyst chamber decomposes nitrous oxide into nitrogen and oxygen using a low-temperature reaction pathway.

A hybrid binary catalyst composition reduces nitrogen oxides through selective catalytic reduction.

Upstream adsorption prevents aluminum corrosion during cryogenic CO2 enrichment by capturing mercury early.