Larry L. Lafitte
Engineering in Baton Rouge, LA
License number
Louisiana PE.0016151
Issued Date
Jan 26, 1977
Expiration Date
Mar 31, 2004
Category
Civil Engineer
Type
Chemical Engineer
Address
Address
633 Hillgate Blvd, Baton Rouge, LA 70808
Professional information
Senior Engineering Consultant--Chemical, Mechanical (Retired) At My Own Company
Location:
Baton Rouge, Louisiana Area
Industry:
Chemicals
Experience:
My Own Company (Plastics industry): Senior Engineering Consultant--Chemical, Mechanical (Retired), (2008-Present) The Dow Chemical Company (Public Company; 10,001+ employees; DOW; Chemicals industry): Senior Process Engr. Consultant and Sr. Tech Consultant (Retired),&...
Two-Stage Coal Gasification Process
US Patent:
4872886, Oct 10, 1989
Filed:
Apr 5, 1988
Appl. No.:
7/178035
Inventors:
John P. Henley - Baton Rouge LA
Stanley R. Pearson - Baton Rouge LA
Bruce C. Peters - Midland MI
Larry L. LaFitte - Baton Rouge LA
Stanley R. Pearson - Baton Rouge LA
Bruce C. Peters - Midland MI
Larry L. LaFitte - Baton Rouge LA
Assignee:
The Dow Chemical Company - Midland MI
International Classification:
C10J 346
US Classification:
48197R
Abstract:
A two-stage upflow process for coal gasification and an apparatus useful therefor. An oxygen-containing gas and a first increment of a coal-in-water slurry are ignited in a horizontal fired slagging reactor by means of horizontal coaxial juxtaposed burner nozzles mounted in the reactor, thereby converting the oxygen, the coal, and the water into steam and gaseous combustion products. The discharge from the fired reactor is contacted overhead with a second increment of coal-water slurry in a vertical unfired heat-recovery unit connected to the upper end of the reactor. The heat evolved in the reactor is used in the heat recovery unit to convert the second increment of coal-water slurry into more steam, char and synthesis gas. The gas effluent is separated from the solid char, and synthesis gas is passed into a fire-tube boiler to recover heat and the cooled product gas is recovered as the desired fuel-rich product. The solid char is reslurried and recycled to the fired reactor 3 for further combustion.
Two-Fluid Nozzle For Atomizing A Liquid Solid Slurry And Protecting Nozzle Tip
US Patent:
4952218, Aug 28, 1990
Filed:
Aug 26, 1988
Appl. No.:
7/238217
Inventors:
Charles W. Lipp - Baton Rouge LA
Clifton T. Knight - Baton Rouge LA
Larry L. Lafitte - Baton Rouge LA
Marion H. Hunt - Brusly LA
Clifton T. Knight - Baton Rouge LA
Larry L. Lafitte - Baton Rouge LA
Marion H. Hunt - Brusly LA
Assignee:
The Dow Chemical Company - Midland MI
International Classification:
C10J 348
US Classification:
48 86R
Abstract:
A two-fluid nozzle for atomizing a liquid with a gas in which at least two conduits, a central and annular conduit, converge in an internal mixing zone for the liquid and gas, in which the nozzle has a central discharge orifice having a shoulder at its upstream end, and a two-piece, thermally resistant metal alloy heat shield for the central discharge orifice which the heat shield includes a retaining ring and an outwardly flaring liner for the outlet connected so that the retaining ring bears against the central outlet shoulder and is held in place by the flared construction at its downstream end, preferably the liner has heat conductive flexible packing disposed between its outside surface and the discharge orifice. The central discharge orifice may open into a protective cap which is cylindrical at one end and rounds out to an elliptical end surface.