Reactor liquid cooldown apparatus

Abstract

A reactor liquid cool down apparatus includes; a compressor comprising an inlet and an outlet, a first conduit connecting a reactor outlet to the compressor inlet, a mixing zone, comprising an inlet, an outlet, and a liquid cryogen inlet, a first control valve, a second conduit connecting the compressor outlet and the first control valve, a third conduit connecting the first control valve to the mixing zone inlet, a temperature control valve, a fourth conduit connecting the temperature control valve with the liquid cryogen inlet, a means for monitoring a mean fluid temperature within the second conduit, a second control valve, wherein the first control valve and the second control valve are configured to isolate the mixing zone, a fifth conduit connecting the second control valve with the mixing zone outlet, a sixth conduit connecting the second control valve to a reactor inlet, a bypass control valve.

What is claimed is: 
     
         1 . A reactor liquid cool down apparatus, comprising;
 a compressor, wherein said compressor comprises an inlet and an outlet,   a first conduit connecting a reactor outlet to the compressor inlet,   a mixing zone, wherein the mixing zone comprises an inlet, an outlet, and a liquid cryogen inlet,   a first control valve,   a second conduit connecting the compressor outlet and the first control valve,   a third conduit connecting the first control valve to the mixing zone inlet,   a temperature control valve,   a fourth conduit connecting the temperature control valve with the liquid cryogen inlet,   a means for monitoring a mean fluid temperature within the second conduit,   a second control valve, wherein the first control valve and the second control valve are configured to isolate the mixing zone,   a fifth conduit connecting the second control valve with the mixing zone outlet,   a sixth conduit connecting the second control valve to a reactor inlet,   a bypass control valve, wherein the bypass valve is configured to bypass the mixing zone.   
     
     
         2 . The reactor liquid cool down apparatus of  claim 1 , wherein the mixing zone is stainless steel. 
     
     
         3 . A reactor liquid cool down apparatus, comprising;
 a compressor, wherein said compressor comprises an inlet and an outlet,   a first conduit connecting a reactor outlet to the compressor inlet,   a mixing zone, wherein the mixing zone comprises an inlet, an outlet, and a liquid cryogen inlet,   a first control valve,   a second conduit connecting the compressor outlet and the first control valve,   a third conduit connecting the first control valve to the mixing zone inlet,   a temperature control valve,   a fourth conduit connecting the temperature control valve with the liquid cryogen inlet,   a means for monitoring a mean fluid temperature within the mixing zone,   a second control valve, wherein the first control valve and the second control valve are configured to isolate the mixing zone,   a fifth conduit connecting the second control valve with the mixing zone outlet,   a sixth conduit connecting the second control valve to a reactor inlet,   a bypass control valve, wherein the bypass valve is configured to bypass the mixing zone.   
     
     
         4 . The reactor liquid cool down apparatus of  claim 3 , wherein the mixing zone is stainless steel.