(19)

(11)

EP 1 838 820 A1

(12)

(43) Date of publication: 03.10.2007 Bulletin 2007/40 (21) Application number: 05823408.9 (22) Date of filing: 15.11.2005

(51) International Patent Classification (IPC):  C10L 1/12(2006.01) C10L 9/10(2006.01) C10L 10/00(2006.01) C10L 1/10(2006.01) C10L 10/02(2006.01) B01J 13/00(2006.01) (86) International application number: PCT/US2005/041355 (87) International publication number: WO 2006/055559 (26.05.2006 Gazette 2006/21)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR (30) Priority: 15.11.2004 US 628002 P (71) Applicant: Envirofuels L.P. Houston, TX 77002 (US)	(72) Inventors: SMITH, Dwight, M. Littleton, Colorado 80120 (US) CHUGHTAI, Abdul, R. Broomfield, Colorado 80020 (US) (74) Representative: Lockey, Robert Alexander  Forrester & Boehmert Pettenkoferstrasse 20-22 80336 München 80336 München (DE)