Praxair Technology, Inc.

Deepak Lumba

Alan T Cheng

Roger W Day

Joshua B Sweeney

Method and apparatus for effectively and safely using cryogenic liquid to cool a reactor vessel housing an exothermic reaction wherein the cryogenic liquid is subcooled, valved into the reactor in a downward direction, and shielded by annular coaxial shielding gas upon injection into the reactor.

Cryogenic cooling of exothermic reactor

Heterogeneous vapor phase oxidation and other reactions are carried out at the surface of a solid catalyst, with both gaseous reactants and the solid catalyst being dispersed in a recirculating liquid solvent. Reaction and product absorption are combined into a single processing step, with enhanced catalyst performance, and product selectivity and product yields, enhanced mass and heat transfer characteristics and reduced risk of forming explosive mixtures in the course of a particular reaction.

High efficiency heat and mass transfer for vapor phase heterogeneous

A system for the recovery of volatile compounds comprising a direct contact condenser and an indirect heat exchanger, wherein the heat exchanger is driven by cryogenic fluid, and a heat exchange fluid, having the same composition as the volatile compound, recirculates between the condenser and the heat exchanger.

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Mohegan Lake, NY, United States of America

Deepak Lumba