Search

Waheed A Mukaddam

from Cambridge, MA
Age ~77

Waheed Mukaddam Phones & Addresses

  • 72 Pleasant St, Cambridge, MA 02139 (617) 868-2805
  • 40 Inman St, Cambridge, MA 02139
  • 74 Pleasant St, Cambridge, MA 02139
  • Chestertown, MD
  • Hopedale, MA

Work

Company: Cambridge chemical technologies, inc. Jan 2004 Position: Chief executive officer

Education

Degree: Master of Science, Masters, Bachelors, Bachelor of Science School / High School: Cornell University 1965 to 1971 Specialities: Chemical Engineering

Skills

Start Ups

Industries

Design

Resumes

Resumes

Waheed Mukaddam Photo 1

Chief Executive Officer

View page
Location:
625 Mount Auburn St, Cambridge, MA 02138
Industry:
Design
Work:
Cambridge Chemical Technologies, Inc.
Chief Executive Officer

Badger Engineering Washington Grp Nov 1997 - Apr 2003
Vice President

Molten Metal Technologies Feb 1994 - Nov 1997
Vice President
Education:
Cornell University 1965 - 1971
Master of Science, Masters, Bachelors, Bachelor of Science, Chemical Engineering
Skills:
Start Ups

Business Records

Name / Title
Company / Classification
Phones & Addresses
Waheed Mukaddam
Chief Executive Officer
Cambridge Chemical Technologies, Inc.
Chemicals · Commercial Physical Research
625 Mt Auburn St, Cambridge, MA 02138
44 Brattle St, Cambridge, MA 02138
(617) 868-0670

Publications

Us Patents

Production Of Alkyl Aromatic Compounds With Catalyst Reactivation

View page
US Patent:
7449420, Nov 11, 2008
Filed:
Mar 19, 2004
Appl. No.:
10/804459
Inventors:
Shyh-Yuan Henry Hwang - Newton MA, US
Waheed A. Mukaddam - Cambridge MA, US
Francis A. Demers - Holderness NH, US
Dana Johnson - Hopkinton MA, US
Assignee:
Stone & Webster Inc. - Houston TX
International Classification:
B01J 20/34
US Classification:
502 31, 502 56
Abstract:
Improved processes are provided for the production of alkyl aromatic compounds using zeolite catalyst(s) and for periodic reactivation in situ of zeolite catalyst(s) that have at least in part become deactivated. Processes according to this invention are typically carried out in a reaction section loaded with catalyst(s) wherein a desired alkyl aromatic compound is produced from feed aromatic and olefin compounds followed by a separation section in which the desired product is isolated and recovered. Alkylation, transalkylation, and/or isomerization reactions that occur in the reaction section are carried out in liquid phase or partial liquid phase over the said zeolite catalyst(s). At least a portion of the zeolite catalyst(s) employed in the reaction section is (are) reactivated in situ, periodically or when deemed necessary, by contacting the deactivated catalyst(s), at elevated temperature and in the substantial absence of olefin feedstock, with an aromatic stripping stream comprising the feed aromatic compound, the desired alkyl aromatic product, byproducts formed in the process, or mixtures thereof, to restore its (their) activity.

Production Of Alkyl Aromatic Compounds

View page
US Patent:
7777086, Aug 17, 2010
Filed:
Feb 27, 2003
Appl. No.:
10/505787
Inventors:
Shyh-Yuan Hwang - Newton MA, US
Maruti Bhandarkar - Joel Nagar, IN
Chung-Ming Chi - Weymouth MA, US
Waheed Mukaddam - Cambridge MA, US
Frank Demers - Holderness NH, US
Richard F. Guarino - East Freetown MA, US
Dana E Johnson - Hopkinton MA, US
Assignee:
Stone & Webster, Inc. - Houston TX
International Classification:
C07C 2/66
C07C 7/04
US Classification:
585448, 585809
Abstract:
Improved integrated processes for the production of alkyl aromatic compounds are disclosed wherein aromatic compounds which may be treated for removal of deleterious substances are reacted with olefin compounds, which may also be treated for contaminant removal, in the presence of acidic zeolite catalyst(s) to produce the desired alkyl aromatic compound(s). The aromatic and preferably also the olefin feeds are treated substantially to remove contaminants, particularly the nitrogen compounds contained therein, before they are brought together for reaction in the presence of the zeolite catalyst(s). In accordance with the present invention, it has been found that feed pretreatment for removal of nitrogen compounds significantly improves the run length and life of the acidic zeolite catalyst(s). The feed pretreatment of this invention may include the steps of distillation, extraction, and/or adsorption by solid adsorbent, which may be regenerated in accordance with further embodiments of this invention.

Ultraviolet Laser System For Decomposing Chemical Pollutants

View page
US Patent:
20070170121, Jul 26, 2007
Filed:
Mar 22, 2005
Appl. No.:
10/588933
Inventors:
Waheed Mukaddam - Cambridge MA, US
Allan Thompson - Winchester MA, US
Charles Moores - Wayland MA, US
International Classification:
C02F 1/32
US Classification:
210748000, 422186300, 204157610
Abstract:
Apparatus and methods are disclosed for using an ultraviolet laser system to decompose selected chemical substances in water. More particularly, this invention provides methods and apparatus whereby various environmental pollutants in water are rapidly decomposed to very low concentrations, consistent with environmental discharge regulations, use requirements, and/or applicable health standards, by means of exposure to ultraviolet laser irradiation (), either with or without one or more catalysts and/or other chemical additives to facilitate or enhance the decomposition process.

Ultraviolet Laser System For Decomposing Chemical Pollutants

View page
US Patent:
20080135399, Jun 12, 2008
Filed:
Aug 9, 2006
Appl. No.:
10/588930
Inventors:
Waheed Mukaddam - Cambridge MA, US
Allan R. Thompson - Winchester MA, US
Charles W. Moores - Wayland MA, US
International Classification:
C02F 1/32
B01J 19/00
US Classification:
2041582, 204193
Abstract:
Apparatus and methods are disclosed for using an ultraviolet laser system to decompose selected chemical substances in water. More particularly, this invention provides methods and apparatus whereby various environmental pollutants in water are rapidly decomposed to very low concentrations, consistent with environmental discharge regulations, use requirements, and/or applicable health standards, by means of exposure to ultraviolet laser irradiation (), either with or without one or more catalysts and/or other chemical additives to facilitate or enhance the decomposition process.

Production Of Alkyl Aromatic Compounds

View page
US Patent:
20100268008, Oct 21, 2010
Filed:
Jul 6, 2010
Appl. No.:
12/830725
Inventors:
Shyh-Yuan Hwang - Newton MA, US
Maruti Bhandarkar - Joel Nagar, IN
Chung-Ming Chi - Weymouth MA, US
Waheed Mukaddam - Cambridge MA, US
Frank Demers - Holderness NH, US
Richard F. Guarino - East Freetown MA, US
Dana E. Johnson - Hopkinton MA, US
International Classification:
C07C 2/66
US Classification:
585448
Abstract:
Improved integrated processes for the production of alkyl aromatic compounds are disclosed wherein aromatic compounds which may be treated for removal of deleterious substances are reacted with olefin compounds, which may also be treated for contaminant removal, in the presence of acidic zeolite catalyst(s) to produce the desired alkyl aromatic compound(s). The aromatic and preferably also the olefin feeds are treated substantially to remove contaminants, particularly the nitrogen compounds contained therein, before they are brought together for reaction in the presence of the zeolite catalyst(s). In accordance with the present invention, it has been found that feed pretreatment for removal of nitrogen compounds significantly improves the run length and life of the acidic zeolite catalyst(s). The feed pretreatment of this invention may include the steps of distillation, extraction, and/or adsorption by solid adsorbent, which may be regenerated in accordance with further embodiments of this invention.
Waheed A Mukaddam from Cambridge, MA, age ~77 Get Report