US2004139649A1PendingUtilityA1

Process for increasing the storgage stability of biodiesel and the use of 2,4-di-tert-butylhydroxytoluene for increasing the storage stability of biodiesel

42
Priority: Nov 13, 2002Filed: Nov 7, 2003Published: Jul 22, 2004
Est. expiryNov 13, 2022(expired)· nominal 20-yr term from priority
Inventors:Axel IngendohChristian RotherKlaus-Peter Heise
C10L 1/026Y02E50/10C10L 1/1832
42
PatentIndex Score
0
Cited by
0
References
0
Claims

Abstract

A process is described for increasing the storage stability of biodiesel by metering a liquid stock solution which comprises 15 to 60% by weight of 2,4-di-tert-butylhydroxytoluene dissolved in biodiesel into the biodiesel to be stabilized up to a concentration of 0.005 to 2% by weight of 2,4-di-tert-butylhydroxytoluene, based on the overall solution of biodiesel.

Claims

exact text as granted — not AI-modified
What is claimed is:  
     
         1 . Process for increasing the storage stability of biodiesel, comprising metering a liquid stock solution which, based on the stock solution, comprises 15 to 60% by weight of 2,4-di-tert-butylhydroxytoluene dissolved in biodiesel into the biodiesel to be stabilized, up to a concentration of 0.005 to 2% by weight of 2,4-di-tert-butylhydroxytoluene, based on the overall solution of biodiesel.  
     
     
         2 . Process according to  claim 1 , characterized in that the stock solution is metered into the biodiesel up to a concentration of 0.1 to 1% by weight of 2,4-di-tert-butylhydroxytoluene, based on the overall solution of biodiesel.  
     
     
         3 . Process according to  claim 1 , characterized in that the biodiesel is a biodiesel which has been obtained by transesterification with methanol from rapeseed oil, soya oil, palm oil, used cooking oil or animal fat.  
     
     
         4 . Process for preparing a liquid stock solution of 2,4-di-tert-butyl-hydroxytoluene, biodiesel and further additives for increasing the storage stability of biodiesel, comprising metering liquefied 2,4-di-tert-butylhydroxytoluene at a temperature in the range from 70 to 120° C. with stirring into biodiesel up to a concentration of 15 to 60% by weight of 2,4-di-tert-butylhydroxytoluene, based on the stock solution.  
     
     
         5 . Liquid stock solution for use in a process for increasing the storage stability of biodiesel, comprising, based on the overall stock solution, 15 to 60% by weight of 2,4-di-tert-butylhydroxytoluene dissolved in biodiesel.  
     
     
         6 . Storage-stabilized biodiesel, comprising 0.005 to 2% by weight of dissolved 2,4-di-tert-butylhydroxytoluene.

Join the waitlist — get patent alerts

Track US2004139649A1 — get alerts on status changes and closely related new filings.

We store only your email — no account needed. See our privacy policy.