Inorganic Chemistry TRIZ Cases

Magnetic chelating beads remove phospholipid interference for cleaner analyte quantitation.

Curved trilobe geometry increases side crush strength and lowers attrition, reducing pressure drop from fines during maleic anhydride production.

Circulating acid solution cleans the catalyst bed in place, eliminating transport damage and reducing operational costs.

Segmented catalytic coatings optimize the NO2/NOx ratio in compact diesel filters, maintaining conversion efficiency despite reduced structural volume.

Oxidized silicon carbide segments bond via inorganic sealants, preventing organic binder degradation during thermal cycling.

A mixed oxide support disperses nickel and cobalt to facilitate effective reforming reactions.

Low-oxygen pre-heating removes moisture from coked molecular sieve catalysts, preventing deactivation during subsequent high-temperature coke removal.

A waste disposal system uses cold plasma to break down smoke into benign components via free radical reactions.

Multi-stage laser excitation selectively ionizes palladium isotopes with odd mass numbers, resolving low efficiency and poor selectivity in separation.

Palladium-iron zeolite adsorbs nitrogen oxides below 200°C, addressing insufficient cold-start storage capacity in lean-burn engines.

Removing sulfur trioxide upstream prevents corrosion and interference, allowing temperature reduction near the dew point for effective mercury capture.

Gasifying a solid chlorinating agent reduces corrosion damage and operational cost while maintaining high mercury removal efficiency.

Tetraphosphorus ligands enhance transition metal coordinating abilities to stabilize active catalyst species.

Segmented platinum and zeolite coatings on a diesel filter reduce soot ignition temperature while maintaining sulfur tolerance across engine states.

Intermediary substrate monolith traps volatilized platinum group metals, preventing SCR catalyst poisoning and maintaining NOx conversion efficiency.

A dual-zone oxidation catalyst uses platinum and palladium with alkaline earth metals to oxidize carbon monoxide at low temperatures.

A double layered exhaust gas purification catalyst uses a ZrO2 composite support to anchor noble metals and inhibit particle growth.

Pretreating nickel, cobalt, or iron catalysts with hydrocarbons at elevated temperatures modifies surface properties before nitrile hydrogenation.

Nitrogen gas strips entrained combustion gases from regenerated catalyst, preventing downstream contamination and reducing caustic consumption.

A curved disengager directs catalyst downwardly through a vertical baffle to limit radial gas flow.

Segmented inlet and outlet catalyst zones balance soot oxidation efficiency with suppressed NO2 formation, reducing precious metal costs.

Segmenting palladium and rhodium across single front and rear layers reduces thermal degradation while maintaining oxidation activity.

Layered platinum and rhodium sections in an exhaust catalyst reduce hydrogen sulfide emission by minimizing sulfur adsorption.

Off-site sulfurization in a vibrating helical coil manages exothermic heat to prevent reactor damage and ensure uniform catalyst activation.

A layered exhaust gas purification catalyst uses a hydrocarbon adsorbent upper layer to protect noble metal active sites.

Carboxyalkyl cellulose and starch particles attached to cellulose fibers reduce bulk and skin wetness in personal care products.

A flexible polymer substrate coated with lithium aluminate intercalate captures lithium ions from geothermal brines.

A vanadium and phosphorus adsorbent oxidizes mercury in gas streams.

Solvent extraction removes oil from spent adsorbents, lowering energy consumption compared to thermal regeneration.

A pseudoplastic washcoat composition enables plug flow into monolith channels using shear-thinning rheology modifiers.

A system customizes cell culture media compositions by analyzing specific genetic traits of target cells to optimize proliferation conditions.

A hydroprocessing catalyst uses specific metal compounds and sulfiding to achieve optimized morphology.

A zoned catalyzed filter substrate manages exhaust gas treatment through distinct platinum and zeolite zones.

Segmenting the annular baffle with a perforated plate reduces gas velocity, preventing catalyst attrition and vent line clogging.

Recycle spent flue gas denitration catalysts by washing with acid and monitoring hydrogen ion concentration to determine completion.