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Warren Stewart Letzsch

from Ellicott City, MD
Age ~81
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Also known as:
Warren S Letzsch, Warren A Letzsch, Warren Stewart Letzsc, Warren Letzsch Stewart, Warren H
Phone and address:
4052 Firefly Way, Ellicott, MD 21042
(410) 461-9904
Related to:
Sarah H McbrideKevin W Evans, 57William M Mccarthy, 57Donna J Letzsch, 81Kristeen A Evans, 53Toni L Letzsch, 47Diana B Letzsch, 58Lawrence K Ncpherson
Connected to:
Daniel Letzt, 81Anna M Leu, 35Brendan Leu, 35Christina Leu, 39Chung G Leu, 40Denise A Leu, 68Hannah S Leu, 31Jan Z Leu, 55Keith Leu, 68Kelvin Leu, 28

Warren Letzsch Phones & Addresses

  • 4052 Firefly Way, Ellicott City, MD 21042 (410) 461-9904 (410) 465-6100
  • Ellicott, MD
  • Centennial, CO
  • 13131 Fallsview Ln, Houston, TX 77077 (281) 496-6270
  • 1520 Enclave Trl, Houston, TX 77077 (281) 496-6270

Work

Company: The shaw group Jan 1, 2004 to Nov 14, 2016 Position: Senior refining consultant

Education

Degree: Bachelors, Bachelor of Science School / High School: Illinois Institute of Technology 1961 to 1966 Specialities: Engineering, Chemistry

Languages

English

Interests

Football • Aerobics • Exercise • Sweepstakes • Home Improvement • Shooting • Reading • Sports • Watching Basketball • Golf • Home Decoration • Health • Watching Sports • Cooking • Skiing • Gardening • Cruises • Outdoors • Electronics • Baseball • Crafts • Fitness • Music • Dogs • Family Values • Movies • Collecting • Christianity • Kids • Medicine • Diet • Walking • Travel • Career • Watching Baseball • Investing • Traveling • Television • Basketball • Watching Football

Industries

Oil & Energy

Resumes

Resumes

Warren Letzsch Photo 1

President

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Location:
4052 Firefly Way, Ellicott City, MD 21042
Industry:
Oil & Energy
Work:
The Shaw Group Jan 1, 2004 - Nov 14, 2016
Senior Refining Consultant
Warren Letzsch Consulting Pc Jan 1, 2004 - Nov 14, 2016
President
Education:
Illinois Institute of Technology 1961 - 1966
Bachelors, Bachelor of Science, Engineering, Chemistry
Interests:
Football
Aerobics
Exercise
Sweepstakes
Home Improvement
Shooting
Reading
Sports
Watching Basketball
Golf
Home Decoration
Health
Watching Sports
Cooking
Skiing
Gardening
Cruises
Outdoors
Electronics
Baseball
Crafts
Fitness
Music
Dogs
Family Values
Movies
Collecting
Christianity
Kids
Medicine
Diet
Walking
Travel
Career
Watching Baseball
Investing
Traveling
Television
Basketball
Watching Football
Languages:
English

Business Records

Name / Title
Company / Classification
Phones & Addresses
Warren Letzsch
Principal
Warren Letzsch Consulting, PC
Business Consulting Services
4052 Firefly Way, Ellicott, MD 21042

Publications

Us Patents

Deep Catalytic Cracking Process

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US Patent:
6905591, Jun 14, 2005
Filed:
Sep 30, 2003
Appl. No.:
10/674865
Inventors:
Warren S. Letzsch - Ellicott City MD, US
Assignee:
Stone & Webster Process Technology, Inc. - Houston TX
International Classification:
C10G051/02
C10G011/00
US Classification:
208 74, 208 75, 208113, 208155
Abstract:
The present invention provides a catalytic cracking reactor system and process in which a riser reactor is configured to have two sections of different radii in order to produced improved selectivity to propene and butenes as products.

Process And Apparatus For Controlling Catalyst Temperature In A Catalyst Stripper

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US Patent:
7273543, Sep 25, 2007
Filed:
Aug 4, 2003
Appl. No.:
10/633879
Inventors:
Warren Letzsch - Ellicott City MD, US
Assignee:
Stone & Webster Process Technology, Inc. - Houston TX
International Classification:
C10G 11/00
C10G 35/10
US Classification:
208113, 208154, 208159, 208160
Abstract:
A process and an apparatus for catalytic cracking a hydrocarbon feed to lighter hydrocarbon employing a catalyst cooler in flow communication with a catalyst stripper is disclosed.

Riser Termination Device

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US Patent:
7429363, Sep 30, 2008
Filed:
Feb 8, 2005
Appl. No.:
11/053482
Inventors:
Ed Yuan - Houston TX, US
Warren Letzsch - Ellicott City MD, US
Gary Jackson - Katy TX, US
Jim Evans - Houston TX, US
John Hood - Harper TX, US
Assignee:
Stone & Webster Process Technology, Inc. - Houston TX
International Classification:
F27B 15/08
B01D 12/00
B01D 50/00
B01D 45/00
C10G 35/00
US Classification:
422147, 422144, 422145, 210513, 208161, 55315, 55434
Abstract:
The present invention provides an improved separator for use in hydrocarbon cracking process.

Deep Catalytic Cracking Process

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US Patent:
7479218, Jan 20, 2009
Filed:
Mar 21, 2005
Appl. No.:
11/085786
Inventors:
Warren S. Letzsch - Ellicott City MD, US
Assignee:
Stone & Webster Process Technology, Inc. - Houston TX
International Classification:
C10G 11/00
US Classification:
208113, 208121, 585899, 585648, 585651
Abstract:
The present invention provides a catalytic cracking reactor system and process in which a riser reactor is configured to have two sections of different radii in order to produced improved selectivity to propene and butenes as products.

Deep Catalytic Cracking Process

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US Patent:
20030127358, Jul 10, 2003
Filed:
Jan 10, 2002
Appl. No.:
10/043954
Inventors:
Warren Letzsch - Ellicott City MD, US
International Classification:
B01J008/18
C01G011/00
US Classification:
208/075000, 422/139000, 422/141000, 422/142000, 422/144000, 422/145000, 422/147000, 208/113000, 208/118000, 208/120010, 208/067000, 208/072000, 208/073000, 208/074000
Abstract:
The present invention provides a catalytic cracking reactor system and process in which a riser reactor is configured to have two sections of different radii in order to produced improved selectivity to propene and butenes as products.

Operation Of Catalyst Withdrawal Wells With Packing

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US Patent:
20090269252, Oct 29, 2009
Filed:
Apr 23, 2008
Appl. No.:
12/148918
Inventors:
Ed Yuan - Houston TX, US
David Banks - Katy TX, US
Gary Jackson - Katy TX, US
Eusebius Gbordzoe - Houston TX, US
Warren Letzsch - Ellicott City MD, US
Assignee:
Stone & Webster Process Technology, Inc. - Houston TX
International Classification:
F27B 15/08
US Classification:
422145
Abstract:
An improved fluidized catalyst withdrawal well containing packing or other structured internals is disclosed for improving the flow of particular solids between two apparatus, such as between a catalyst regenerator and riser reactor.

Process For Maximum Distillate Production From Fluid Catalytic Cracking Units (Fccu)

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US Patent:
20130130889, May 23, 2013
Filed:
Nov 17, 2011
Appl. No.:
13/298636
Inventors:
Eusebius Gbordzoe - Houston TX, US
Marc Bories - Saint Jouin de Bruneval, FR
Warren Stewart Letzsch - Ellicott City MD, US
Patrick Leroy - Saint Vigor d'Ymonville, FR
Chris Santner - Houston TX, US
Assignee:
Stone & Webster Process Technology, Inc. - Houston TX
International Classification:
B01J 29/40
B01J 19/00
B01J 29/04
C10G 1/00
B01J 21/08
B01J 21/12
B01J 23/02
B01J 23/00
C10G 63/08
B01J 29/08
US Classification:
502 77, 208 78, 422619, 502 60, 502 79, 502232, 502263, 502340, 502349, 502355, 585240
Abstract:
The present invention provides an improved fluidized catalytic cracking process coupled with a two stage regeneration process in which the activity of the circulating catalyst is independently controlled for cracking hydrocarbon feedstocks or the vapors at low severity to produce maximum light cycle oil/distillate in one riser whilst cracking recycle streams comprising heavy cycle oil (HCO), light cracked naphtha (LCN) etc. in a second riser operating at high severity to produce LPG.

Short Residence Time Cracking Apparatus And Process

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US Patent:
56628684, Sep 2, 1997
Filed:
Sep 22, 1994
Appl. No.:
8/310529
Inventors:
Warren S. Letzsch - Houston TX
Gerald Earl - Houston TX
Assignee:
Stone & Webster Engineering Corporation - Boston MA
International Classification:
F27B 1508
C10G 1100
US Classification:
422144
Abstract:
A novel apparatus and process for the cracking of hydrocarbons is disclosed which is particularly useful in revamping an existing FCC unit to a short residence time FCC unit.
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Warren Stewart Letzsch from Ellicott City, MD, age ~81 Get Report