Patents by Inventor Wadie Malaty

Wadie Malaty has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Separating olefin streams
    Patent number: 8338656
    Abstract: This invention pertains to separating an olefin stream into at least two olefin streams. The olefin stream that is to be separated is low in diene composition, which allows the olefin stream to be compressed at a relatively high temperature without causing fouling problems in the compressor system. The invention is particularly relevant to separating olefins obtained from an oxygen to olefins unit.
    Type: Grant
    Filed: October 1, 2007
    Date of Patent: December 25, 2012
    Assignees: Lummus Technology Inc., ExxonMobil Chemical Patents Inc.
    Inventors: David Ritchie Lumgair, Michael Peter Nicoletti, Ram Mallik, Wadie Malaty, Malcolm Pettigrew
  • METHOD FOR PRODUCING OLEFINS BY DILUTE FEED CRACKING OF REFINERY OFF-GAS AND OTHER LIGHT HYDROCARBONS
    Publication number: 20120053383
    Abstract: The present invention is directed to a method for producing, inter alia, olefins from refinery saturated and unsaturated off-gas. Furthermore, said refinery streams are not required to undergo deoxygenation reaction in a separate reactor system provided they are fed to the pyrolysis furnace. The refinery off-gases are treated to produce olefins such as ethylene and propylene. Gases from petrochemical facilities, gas separation plants and similar facilities that produce light gases containing ethane and propane are useful in the present method.
    Type: Application
    Filed: August 25, 2011
    Publication date: March 1, 2012
    Applicant: Stone & Webster Process Technology, Inc.
    Inventors: Wadie MALATY, Richard H. McCue, David J. Brown, William Larson
  • SEPARATING OLEFIN STREAMS
    Publication number: 20100292521
    Abstract: This invention pertains to separating an olefin stream into at least two olefin streams. The olefin stream that is to be separated is low in diene composition, which allows the olefin stream to be compressed at a relatively high temperature without causing fouling problems in the compressor system. The invention is particularly relevant to separating olefins obtained from an oxygen to olefins unit.
    Type: Application
    Filed: October 1, 2007
    Publication date: November 18, 2010
    Applicants: LUMMUS TECHNOLOGY INC., EXXON MOBIL CHEMICAL COMPANY
    Inventors: David Ritchie Lumgair, Michael Peter Nicoletti, Ram Mallik, Wadie Malaty, Malcolm Pettigrew
  • Quench process
    Patent number: 7273961
    Abstract: The present invention is a process for quenching a reactor effluent stream. The reactor effluent stream comprises water, olefin product, and methanol and is further entrained with catalyst fines. The process removes water, catalyst fines, and methanol. Particularly, methanol removal from the reactor effluent stream is improved.
    Type: Grant
    Filed: January 22, 2004
    Date of Patent: September 25, 2007
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Malcolm G. Pettigrew, Wadie Malaty, Ram Mohan Lai Mallik
  • Heat recovery from the effluent stream of an oxygenate-to-olefin process
    Patent number: 7271306
    Abstract: The present invention comprises a process for cooling a reactor effluent stream from a methanol-to-olefins reactor. The process is efficient and recovers heat from the reactor effluent stream in one or more highly usable forms, preferably high pressure superheated steam.
    Type: Grant
    Filed: January 22, 2004
    Date of Patent: September 18, 2007
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Malcolm G. Pettigrew, Wadie Malaty, Ram Mohan Lai Mallik, Stephen W. McCormick
  • Quench process
    Publication number: 20040152939
    Abstract: The present invention is a process for quenching a reactor effluent stream. The reactor effluent stream comprises water, olefin product, and methanol and is further entrained with catalyst fines. The process removes water, catalyst fines, and methanol. Particularly, methanol removal from the reactor effluent stream is improved.
    Type: Application
    Filed: January 22, 2004
    Publication date: August 5, 2004
    Inventors: Malcolm G. Pettigrew, Wadie Malaty, Ram Mohan Lai Mallik
  • Heat recovery from the effluent stream of an oxygenate-to-olefin process
    Publication number: 20040152936
    Abstract: The present invention comprises a process for cooling a reactor effluent stream from a methanol-to-olefins reactor. The process is efficient and recovers heat from the reactor effluent stream in one or more highly usable forms, preferably high pressure superheated steam.
    Type: Application
    Filed: January 22, 2004
    Publication date: August 5, 2004
    Inventors: Malcolm G. Pettigrew, Wadie Malaty, Ram Mohan Lai Mallik, Stephen W. McCormick