Rising demand for rare 3He is addressed by adsorbing helium isotopes and selectively desorbing 3He for enrichment.
Hydrochloric acid vapor protonates imine-linked COFs, increasing adsorption heat and hydrogen storage without compromising pore stability.
Bulky PPE restricts mobility; electrospun nanofibers retain MOF particles to actively decontaminate chemical threat agents.
Evaporating scrubbing-tower liquid cools air and water while treatment and salt control limit impurities, corrosion, and water use.
Sealed wrappers prevent premature CO2 absorption, while unsealed-only reading links absorbable capacity to each user.
Removing the coldface lets regenerative oxidizer heat exchangers rest on the chamber floor, reducing corrosion, deformation, and inspection time.
Embedded Al or Ag nanoparticles improve light absorption and photocatalyst activation for VOC removal in ceramic filters.
Condensable contaminants cool into droplets on a structure, then inertial separation removes them without chemical reagents or refrigerant flow.
Partial combustion produces hydrogen and carbon monoxide, then complete CO combustion supports clean power and CO2 capture with lower oxygen use.
A staged catalyst train uses exhaust ammonia for SCR while oxidation zones remove excess ammonia across temperature changes.
Carbonyl- and hydroxyl-containing polyamines help solid sorbents capture CO2 while limiting water uptake and desorption energy.
Iron combined with platinum group metals on alumina lowers CO and HC light-off temperatures while preserving NO oxidation for downstream SCR support.
Thermal degradation can shift the NO2-to-NOx ratio; lanthanum-stabilized oxidation activity helps maintain SCR feed quality over vehicle life.
Silicon carbide aggregate with cordierite and spinel phases strengthens segment joints and relieves thermal stress during regeneration.
An AEI zeolite SCR stage with downstream AMOX targets low-temperature NOx conversion while limiting N2O during lean-burn exhaust treatment.
Longitudinally seamed construction enables repeatable positioning, reliable sealing, and accurate airflow measurement in a secondary filter element.
A Zr-based solid catalyst accelerates CO2 desorption from amine solutions at lower temperatures, cutting energy use without dissolving in the solvent.
Dried algae reacts with iron oxide in electric arc furnace slag to support foaming while reducing carbon dioxide emissions and ash.
UV-Vis spectrophotometry measures dissolved iron in glycol and amine samples on site, avoiding costly off-site laboratory analysis.
Sub-stoichiometric sour gas combustion combines Claus sulfur recovery and water-gas shift conversion to produce hydrogen while limiting carbon dioxide.
An open end disk and a closed support disk guide fluid through a pleated round filter element while limiting flow resistance and material use.
The seal groove and asymmetric recesses guide filter-element insertion, control compatibility, and maintain radial and axial sealing in the housing.
Chilled enrichment columns adsorb tritium from low-concentration water, then regenerate the phase with hydrogen for scalable, lower-energy processing.
Separated catalyst coats use noble-metal oxidation and proton-zeolite adsorption to limit ammonia slip while purifying NOx.
Spunbond layers reinforce an electrostatic meltblown filter, preserving fine-dust removal and dimensional stability during extended use.
A zoned washcoat uses separated PGM compositions to resist phosphorus poisoning while preserving exotherm generation, NO2 production, and aged performance.
An electrically heated main tank and oxy-combustion fining tank reduce emissions while enabling concentrated flue-gas CO2 capture.
Zeolite getter particles help evacuated glass panels adsorb nitrogen at lower activation temperatures, simplifying manufacturing.
At 5–12 K, an adsorbent captures helium isotopes; heating to 13–40 K selectively desorbs 3He for progressive enrichment.
Specific amine compounds and liquid media support efficient carbon dioxide absorption and release at lower temperatures.
High-nitrogen natural gas raises compressor energy and plant complexity; ceramic membrane pretreatment reduces the load on cryogenic separation.
An upstream wet acid scrubber captures hydrogen chloride as hydrochloric acid before dry or semidry desulfurization, reducing wastewater and supporting downstream use.
Microparticles trapped in gas bubbles evade solution contact; a throat, diffuser, and baffle generate reversed flow for thorough purification.
Limited heat from regenerated absorption liquid can leave exhaust gas cold enough for condensation; staged heat exchange suppresses white smoke.
Co-current flow transfers sensible heat between heated and CO2-loaded adsorbent, reducing external energy needed for desorption.
Fine-particle capture and pleat stability compete in compact filters; co-pleated electret layers assign support to spunbonded fibers and capture to meltblown fibers.
Ozone oxidizes NO and NO2 in fertilizer-production effluent to higher nitrogen oxides for wet-scrubber removal, reducing reliance on multiple scrubbers.
Particulate sensing automatically moves a filter into the server airflow path, reducing contamination while limiting continuous airflow resistance.
Cooling condenses water, SO2, and CO2 before rectification, addressing wastewater and energy burdens in boiler flue-gas treatment.
Multi-stage compression and intercooling let recycled exhaust support gas-turbine power augmentation despite capture-related losses.
A hollow tower cools incoming air by evaporation, captures CO2 in an aqueous reagent, and generates electricity from the downward stream.
Different moisture and calorific values make municipal waste and short timber difficult to burn completely; layer and suspension combustion address both fuels.
Batch capture limits continuous CO2 supply; rotating physisorption units cycle capture and desorption for purity up to 99%.
A reducing agent injected before exhaust processing converts molecular iodine to iodide, preventing violet or pink emissions.
Capillary condensation in hydrophilic nanoparticle films forms macroscopic water droplets without cooling for accessible harvesting.
An asymmetric seal and selectively supported corners guide filter elements into complex housings, preventing misplacement while maintaining sealing effectiveness.
Two dehydration stages use progressively higher sulfuric acid concentrations to improve HCl drying certainty while reducing total acid consumption.
Variable biogas composition can disrupt methane control; calorific-value feedback adjusts membrane valves to protect purity and limit methane loss.
A single distillation column and multifunctional sorbent remove odorous compounds while hydrogenating olefins, yielding over 98% Cx alkanes.
An airlock anteroom uses blower-based filtration and local climate control to keep dust and moisture out of a remote data center.