Methods of purifying biodiesel fuels

Fuel and related compositions – Liquid fuels – Plant or animal extract mixtures or extracts of...

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C044S388000, C044S605000

Reexamination Certificate

active

07998225

ABSTRACT:
The invention provides methods of synthesizing and purifying methyl esters and specifically biodiesel fuels. The methods include acid-catalyzed transesterification of a triglyceride source followed by formation of an acidic emulsion that is subjected to an electric field to break the emulsion and recover the purified methyl esters. After recovery, the purified methyl esters may be used as a highly purified and stable biodiesel fuel without further treatment. The electric field may be efficiently applied to the acidic emulsion in an electrochemical reactor such as an electrocoagulation chamber.

REFERENCES:
patent: 284862 (1883-09-01), Lackersteen
patent: 2182145 (1939-12-01), Eddy
patent: 2732944 (1956-01-01), Hays
patent: 3340175 (1967-09-01), Mehl
patent: 3788967 (1974-01-01), Kawahata et al.
patent: 3793173 (1974-02-01), Kawahata et al.
patent: 3925176 (1975-12-01), Okert
patent: 3966567 (1976-06-01), Pace et al.
patent: 4036726 (1977-07-01), Gale et al.
patent: 4119520 (1978-10-01), Paschakarnis et al.
patent: 4125467 (1978-11-01), Haddad et al.
patent: 4176038 (1979-11-01), Moeglich
patent: 4293400 (1981-10-01), Liggett
patent: 4321125 (1982-03-01), Nazarian et al.
patent: 4329211 (1982-05-01), Plantes et al.
patent: 4450060 (1984-05-01), Gonzalez
patent: 4623436 (1986-11-01), Umehara
patent: 4708809 (1987-11-01), Davis
patent: 4770755 (1988-09-01), Valanti et al.
patent: 4790923 (1988-12-01), Stillman
patent: 4872959 (1989-10-01), Herbst et al.
patent: 4919775 (1990-04-01), Ishigaki
patent: 5013435 (1991-05-01), Rider et al.
patent: 5043050 (1991-08-01), Herbst
patent: 5227071 (1993-07-01), Torline et al.
patent: 5248424 (1993-09-01), Cote et al.
patent: 5302273 (1994-04-01), Kemmerer
patent: 5423962 (1995-06-01), Herbst
patent: 5525126 (1996-06-01), Basu et al.
patent: 5549812 (1996-08-01), Witte
patent: 5571399 (1996-11-01), Allen
patent: 5611907 (1997-03-01), Herbst et al.
patent: 5741426 (1998-04-01), McCabe et al.
patent: 5804062 (1998-09-01), Wyness
patent: 5866019 (1999-02-01), Wyness
patent: 5928490 (1999-07-01), Sweeney
patent: 5928493 (1999-07-01), Morkovsky et al.
patent: 5985139 (1999-11-01), Zoeller
patent: 6139710 (2000-10-01), Powell
patent: 6171498 (2001-01-01), Fassbender et al.
patent: 6238546 (2001-05-01), Knieper et al.
patent: 6325916 (2001-12-01), Lambert et al.
patent: 6346197 (2002-02-01), Stephenson et al.
patent: 6358398 (2002-03-01), Halldorson et al.
patent: 6406629 (2002-06-01), Husain et al.
patent: 6471869 (2002-10-01), Yanou et al.
patent: 6488835 (2002-12-01), Powell
patent: 6645385 (2003-11-01), Krulik et al.
patent: 6689271 (2004-02-01), Morkovsky et al.
patent: 6719894 (2004-04-01), Gavrel et al.
patent: 6755970 (2004-06-01), Knappe et al.
patent: 6855838 (2005-02-01), Haas et al.
patent: 6890451 (2005-05-01), Sapienza et al.
patent: 6965044 (2005-11-01), Hammond et al.
patent: 7008538 (2006-03-01), Kasparian et al.
patent: 7264732 (2007-09-01), Bradley
patent: 7297279 (2007-11-01), Johnson et al.
patent: 7381323 (2008-06-01), Umezawa et al.
patent: 7404900 (2008-07-01), Bradley
patent: 7410584 (2008-08-01), Devine
patent: 7449117 (2008-11-01), Nakayama
patent: 2002/0088710 (2002-07-01), Powell
patent: 2003/0121864 (2003-07-01), Kin et al.
patent: 2004/0188348 (2004-09-01), Yamasaki et al.
patent: 2005/0045534 (2005-03-01), Kin et al.
patent: 2005/0081435 (2005-04-01), Lastella
patent: 2005/0120621 (2005-06-01), Lawson et al.
patent: 2005/0262760 (2005-12-01), Lawson et al.
patent: 2005/0274606 (2005-12-01), Powell
patent: 2006/0080891 (2006-04-01), Ghosh et al.
patent: 2006/0111600 (2006-05-01), Mecham
patent: 2007/0278152 (2007-12-01), Musale
patent: 80591/82 (1982-09-01), None
patent: 569026 (1988-01-01), None
patent: 685260 (1998-01-01), None
patent: 707432 (1999-07-01), None
patent: 721834 (2000-07-01), None
patent: 1526687 (1970-02-01), None
patent: 2832664 (1980-02-01), None
patent: 803274 (1997-10-01), None
patent: 1526687 (1978-09-01), None
patent: 2172815 (1986-10-01), None
patent: 2272171 (1994-05-01), None
patent: 61164695 (1986-07-01), None
patent: 7-116667 (1995-05-01), None
patent: WO 94 00860 (1994-01-01), None
patent: WO 96/17667 (1996-06-01), None
patent: WO 96/40591 (1996-12-01), None
patent: WO 98/17589 (1998-04-01), None
patent: WO 01/53568 (2001-07-01), None
patent: WO 03/078035 (2003-09-01), None
Amended Statement of Grounds and Particulars related to Australian Patent 738707 (similar to that previously submitted), 11 pages.
Amended Statement of Grounds and particulars related to Australian Patent 738707 (related to U.S. Appl. No. 10/050,725), 5 pages.
Barkley, Naomi P., et al, “Emerging Technology Summary—Electro-Pure Alternating Current Electrocoagulatioh”, Superfund Innovative Technology Evaluation, EPA/640/S-937507, Sep. 1993.
Brian Grigg; AWWA Trade Waste Interest Group and Institute for Sustainable Futures—Joint Seminar, Sep. 14-15, 1999; 6 pages.
Cardia Technologies Ltd.; Electrocoagulation Advertisement; 7 pages, Mar. 2004.
Electro-Coagulation—Water Treatment Technology; 6 pages Sep. 1999.
Electrocoagulation Systems; 9 pages 1999.
Fletcher et al., “Industrial Electochemistry”, Second Edition, Chapman-Hall, 1990, Great Britian, pp. 337-338 and 560.
Holt et al., “Electrocoagulation: A Technology-Oriented Review”, 61 pages 1999.
Horn, F.P., “Informational Memorandum for the Deputy Secretary of Agriculture of the U.S. Re: Electrocoagulation,” Dec. 11, 1995.
Petition related to a request for Invalidation against Korean Patent Application No. 395731 (related to U.S. Appl. No. 10/050,725), 18 pages.
Scott Wade Powell; Vortex™ Water Systems, LLC—Electrocoagulation—A Technical Analysis; 25 pages 1995.
Smith, C.E., “Applications of New Concepts of Physical-Chemical Wastewater Treatment,” Progress in Water Technology, vol. 1, Pergamon Press, edited by W.W. Eckenfelder, et al., paper presented at Vanderbilt University, sponsored by The International Association on Water Pollution Research & The American Institute of Chemical Engineers, Sep. 18-22, 1972.
Statement of Grounds and particulars related to Australian Patent 738707 (related to U.S. Appl. No. 10/050,725), 4 pages.
Vortex™ Water Systems, LLC—Advertisement; 6 pages 1999.
Vortex™ Water Systems, LLC—Operating Instructions Manual; 15 pages 1998.
Woytowich, David L., et al., “Electrocoagulation (CURE) Treatment of Ship Bilgewater for the U.S. Coast Guard in Alaska,” MTS Journal, vol. 27, No. 1, 63-67. No month available.
U.S. Appl. No. 12/255,903, filed Oct. 22, 2008.
U.S. Appl. No. 12/276,078, filed Nov. 21, 2008.
“Clarifiers”, Clarifier, Waste Treatment Clarifier, clarifiers, Met-Chem, Inc. web page, as early as Mar. 18, 2007, available at http://www.metchem.com/clarifier.htm, printed on Oct. 21, 2008, pp. 1-2.
“Memcor® Membranes. Quality. Reliability. Experience.”, MEMCOR Products—Ultrafiltration and Microfiltration Water and Wastewater Systems, Siemens web page, available at http://watersiemens.com/en/productlines/memcor—products/Pages/defaultaspx?g . . . , printed on Oct. 20, 2008, p. 1.
“Reverse Osmosis”, Reverse Osmosis—Wikipedia, the free encyclopedia web page, as early as Apr. 4, 2004, available at http://en.wikipedia.org/wiki/Reverse—osmosis, printed on Oct. 22, 2008, pp. 1-6.
“Sewage treatment”, Sewage treatment—Wikipedia, the free encyclopedia web page, as early as Jan. 24, 2004, available at http://en.wikipedia.org/wiki/Sewage—treatment, printed on Oct. 22, 2008, pp. 1-10.
“Ultrafiltration”, Ultrafiltration—Wikipedia, the free encyclopedia web page, available at http://en.wikipedia.org/wiki/Utrafiltration, printed on Oct. 22, 2008, p. 1.
“Ultrafiltration”, ultrafiltration: Definition from Answers.com website, as early as May 26, 2005, available at http://www.answers.com/topic/ultrafiltration, printed on Oct. 20, 2008, p. 1.
“Water purification”,

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Methods of purifying biodiesel fuels does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Methods of purifying biodiesel fuels, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods of purifying biodiesel fuels will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2777917

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.