Lawrence Adrian Hebert
Engineering at Pne Crst Dr, Baton Rouge, LA
License number
Louisiana PE.0025623
Issued Date
Feb 1, 1994
Expiration Date
Mar 31, 2017
Category
Civil Engineer
Type
Chemical Engineer
Address
Address
3839 Pine Crest Dr, Baton Rouge, LA 70809
Professional information
Process And Catalyst For Hydrohalogenation Of Hydrocarbons
US Patent:
5109138, Apr 28, 1992
Filed:
May 14, 1991
Appl. No.:
7/699530
Inventors:
Michael T. Holbrook - Baton Rouge LA
Lawrence A. Hebert - Baton Rouge LA
Stephen W. Najmy - Midland MI
Ernest F. Stine - Knoxville TN
Reimer Hasche - Hammah, DE
Lawrence A. Hebert - Baton Rouge LA
Stephen W. Najmy - Midland MI
Ernest F. Stine - Knoxville TN
Reimer Hasche - Hammah, DE
Assignee:
The Dow Chemical Company - Midland MI
International Classification:
C07C 1716
US Classification:
570258
Abstract:
A process for hydrohalogenating methanol with a hydrogen halide using a catalyst having an initial zone of lower activity and subsequent zones of higher activity so that coke formation and pressure drop are decreased and catalyst life is increased while overall high catalyst activity is maintained. One example of such a process uses a low surface area amorphous alumina in an initial zone and then progressively higher surface area alumina in subsequent zones.
Process For The Complete Saturation Of Halogenated Hydrocarbon Streams Containing Unsaturated Compounds
US Patent:
5659108, Aug 19, 1997
Filed:
Jul 7, 1995
Appl. No.:
8/499353
Inventors:
Michael T. Holbrook - Baton Rouge LA
Lawrence A. Hebert - Baton Rouge LA
Katherine A. Pividal - Baton Rouge LA
Celio Lume Pereira - Nachtigallenweg, DE
Lawrence A. Hebert - Baton Rouge LA
Katherine A. Pividal - Baton Rouge LA
Celio Lume Pereira - Nachtigallenweg, DE
Assignee:
The Dow Chemical Company - Midland MI
International Classification:
C07C 710, C10G 4500
US Classification:
585833
Abstract:
A saturation process for essentially completely saturating unsaturated halogenated hydrocarbonaceous materials in a feedstock containing such unsaturated materials, employing a first recycle reactor for accomplishing the bulk of the saturation and a second, single pass, plug flow-type polishing reactor in combination.
Catalyst For Hydrohalogenation Of Hydrocarbons
US Patent:
5183797, Feb 2, 1993
Filed:
Nov 7, 1991
Appl. No.:
7/789217
Inventors:
Michael T. Holbrook - Baton Rouge LA
Lawrence A. Hebert - Baton Rouge LA
Stephen W. Najmy - Midland MI
Ernest F. Stine - Knoxville TN
Reimer Hasche - Hammah, DE
Lawrence A. Hebert - Baton Rouge LA
Stephen W. Najmy - Midland MI
Ernest F. Stine - Knoxville TN
Reimer Hasche - Hammah, DE
Assignee:
The Dow Chemical Company - Midland MI
International Classification:
B01J 2104
US Classification:
502355
Abstract:
A process for hydrohalogenating methanol with a hydrogen halide using a catalyst having an initial zone of lower activity and subsequent zones of higher activity so that coke formation and pressure drop are decreased and catalyst life is increased while overall high catalyst activity is maintained. One example of such a process uses a low surface area amorphous alumina in an initial zone and then progressively higher surface area alumina in subsequent zones.
Liquid Feed Injection In A Chloromethanes Process
US Patent:
5023387, Jun 11, 1991
Filed:
Apr 30, 1990
Appl. No.:
7/517000
Inventors:
David H. West - Baton Rouge LA
Lawrence A. Hebert - Baton Rouge LA
Roger L. Bowlin - Denham Springs LA
Michael T. Holbrook - Baton Rouge LA
Lawrence A. Hebert - Baton Rouge LA
Roger L. Bowlin - Denham Springs LA
Michael T. Holbrook - Baton Rouge LA
Assignee:
The Dow Chemical Company - Midland MI
International Classification:
C07C 1710
US Classification:
570252
Abstract:
An adiabatic vapor phase chlorination of methylene chloride, methyl chloride or a mixture thereof is improved by the injection of a portion of the methylene chloride, methyl chloride or mixture thereof into the reactor in the liquid state under conditions such that the temperature throughout the reaction zone is maintained at less than about 500. degree. C.
Reactor Feed Pipe Design
US Patent:
5268518, Dec 7, 1993
Filed:
Mar 17, 1993
Appl. No.:
8/032565
Inventors:
David H. West - Baton Rouge LA
Lawrence A. Hebert - Baton Rouge LA
Stanford S. Kirsch - Baton Rouge LA
Lawrence A. Hebert - Baton Rouge LA
Stanford S. Kirsch - Baton Rouge LA
Assignee:
The Dow Chemical Company - Midland MI
International Classification:
C07C 1710
US Classification:
570255
Abstract:
Process and apparatus for enhancing entrainment and self-stirring adjacent the entry of a reactor vessel of at least partly-reacted materials in an incoming stream of reactants.