William R French

US Patent:

7638314, Dec 29, 2009

Filed:

Oct 4, 2004

Appl. No.:

10/956069

Inventors:

Mark E. Zappi - Starkville MS, US
William Todd French - Starkville MS, US
Rafael Hernandez - Starkville MS, US
Stephen Thomas Dufreche - Ponchatoula LA, US

Assignee:

Mississippi State University - Mississippi State MS

International Classification:

C12P 5/00
C12P 7/64
C12P 7/08

US Classification:

435134, 435163, 435166, 4242831

Abstract:

A process for producing biodiesel has been invented by first extracting lipids from the sludges generated during primary and/or biological treatment of municipal, agricultural, and industrial wastewaters using primary, secondary, and tertiary treatments followed by the transesterification of the extracted lipids using transesterification conversion into alcohol-based esters. The resulting products from this process include biodiesel, glycerol, lipid-free proteins, various other useful chemicals and an aqueous-based substrate well suited for optimized digestion within subsequent biological digestion (either aerobic or anaerobic). The lipids extracted from the sludges containing high levels of microorganisms are phospholipids which can also be directly used as lecithin. The extraction of the lipids from the sludges will be performed using chemical extraction techniques with the transesterification of the extracted lipids accomplished using basic, acidic, and/or a combination of the two transesterification techniques.

US Patent:

20070056213, Mar 15, 2007

Filed:

Mar 13, 2006

Appl. No.:

11/373176

Inventors:

William French - Starkville MS, US
Larry Tate - Waxahachie TX, US
Mark Zappi - Lafayette LA, US
Rafael Hernandez - Starkville MS, US

International Classification:

C10L 1/18

US Classification:

044385000, 044388000

Abstract:

A method is provided, which includes operating a two-stroke engine with a lubricating fuel, the lubricating fuel including at least one fuel selected from the group including Calcohol, gasoline, ether, ketone, nitromethane, and a mixture thereof, and at least one lubricant selected from the group including biodiesel, lipid, fatty acid alkyl ester, fatty acid, and a mixture thereof. Lubricating fuel compositions are also provided.