Sodium sulphide washing removes iron precipitates from polysulphide catalysts without acid corrosion risks.
Oxygen-enriched feed streams reduce gas volume and pressure drop across catalysts, boosting production capacity.
Tapered gas distribution spaces in modular catalytic reactors ensure uniform flow across catalyst beds.
Portable apparatus generates sulfur trioxide on-site using catalytic conversion, eliminating hazardous transport logistics and ensuring safe paraffin removal.
Varying catalyst receptacle configurations balance reaction speed and equilibrium conversion, achieving 99.7% sulfur trioxide yield.
Segmented absorber sump eliminates separate collecting tanks and reduces energy costs by adjusting sulfuric acid concentration.
A phosphogypsum decomposition process uses carbon oxide to convert calcium sulfate into calcium oxide and sulfur dioxide.
Solvent vapour from the main separator heats the feed solution in a regenerative heat exchanger, eliminating multi-stage vacuum concentration waste.
Segmented heating zones prevent corrosive sulfuric acid condensation while stabilizing oxidation temperatures across varying SO2 concentrations.
Segmenting condensation into two stages controls acid dew points below 240°C, reducing mist emissions without increasing plant size.
Multi-zone combustion chamber segments oxygen concentration to control reaction temperature during sulfur dioxide generation.
Stationary three-dimensional catalytic unit accelerates sulfite oxidation in flowing seawater, reducing fresh water demand and catalyst loss.
Air lift pump recirculates acid through a concentrator column, enabling 98 wt % production beyond the azeotrope limit while reducing energy costs.
An intermediate heat exchanger uses inert coolants to remove heat from sulfuric acid, preventing corrosion and hydrogen formation.
Diluting sulfur trioxide with inert gas controls exothermic reactions and eliminates hazardous liquid handling.
Plasma decomposes carbon dioxide into reactive radicals to oxidize sulfur and sulfur dioxide, eliminating expensive catalysts and reducing CO2 emissions.
Heated drip trays create uniform sulfur droplets that solidify into spherical prills with low moisture content.