US2014158926A1PendingUtilityA1

Low-density solid-state insulation for cryogenic service

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Assignee: AIR LIQUIDE LARGE IND US LPPriority: Dec 12, 2012Filed: Dec 12, 2012Published: Jun 12, 2014
Est. expiryDec 12, 2032(~6.4 yrs left)· nominal 20-yr term from priority
Inventors:Paul Yamarick
F25J 1/0261F25J 3/04945F25J 3/0295F25J 2290/30F25J 3/0695B01J 13/0091E04B 1/78
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Claims

Abstract

A cryogenic insulation system including a low density low conductivity insulation material for cryogenic service, wherein the low conductivity insulation material is essentially free of hydrocarbon residue. A method for producing a low density low conductivity insulation material for cryogenic service, comprising: exposing the low density low conductivity insulation material to at least one of an elevated temperature or a reduced pressure, for a length of time sufficient to reduce the hydrocarbon residue to less than 1000 ppm.

Claims

exact text as granted — not AI-modified
What is claimed is:  
     
         1 : A cryogenic insulation system comprising a low density low conductivity insulation material for cryogenic service, wherein said low conductivity insulation material is essentially free of hydrocarbon residue. 
     
     
         2 : The insulation system of  claim 1 , wherein said low density low conductivity insulation material comprises less than 1000 ppm of hydrocarbon residue. 
     
     
         3 : The insulation system of  claim 2 , wherein said low density low conductivity insulation material comprises less than 500 ppm of hydrocarbon residue. 
     
     
         3 : The insulation system of  claim 2 , wherein said low density low conductivity insulation material comprises less than 250 ppm of hydrocarbon residue. 
     
     
         4 : The insulation system of  claim 2 , wherein said low density low conductivity insulation material comprises less than 100 ppm of hydrocarbon residue. 
     
     
         5 : The insulation system of  claim 2 , wherein said low density low conductivity insulation material comprises less than 50 ppm of hydrocarbon residue. 
     
     
         6 . A method for producing a low density low conductivity insulation material for cryogenic service, comprising: exposing said low density low conductivity insulation material to at least one of an elevated temperature or a reduced pressure, for a length of time sufficient to reduce the hydrocarbon residue to less than 1000 ppm. 
     
     
         7 : The insulation system of  claim 5 , wherein said hydrocarbon residue is less than 500 ppm. 
     
     
         8 : insulation system of  claim 5 , wherein said hydrocarbon residue is less than 250 ppm. 
     
     
         9 : insulation system of  claim 5 , wherein said hydrocarbon residue is less than 100 ppm. 
     
     
         10 : insulation system of  claim 5 , wherein said hydrocarbon residue is less than 50 ppm.

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