Raising heat-transfer medium inlet temperature over time slows catalyst deactivation, limits corrosion, and sustains chlorine conversion.
Offset fins create localized heat-exchange zones that control exothermic reaction peaks, helping protect the catalyst and limit phosgene by-products.
Purifying carbon monoxide to under 2000 ppb sulfur prevents catalyst poisoning, eliminating energy-intensive stripping processes.
Replacing chlorine gas with polychlorine anion compounds eliminates toxic handling risks and intensive heat removal requirements during phosgene synthesis.
An ionic organic compound containing monochloride anions catalyzes phosgene production from chlorine and carbon monoxide.
Segmented catalyst tube bundles with baffle-free areas reduce pressure loss and equalize heat transfer coefficients in large-diameter phosgene reactors.
Segmented annular cooling spaces enable natural convection heat dissipation in large phosgene reactors, eliminating forced circulation risks.
Segmented flow paths and circular baffles equalize heat transfer coefficients, reducing pressure loss and pumping effort in large-scale phosgene production.