Patents Assigned to Stone & Webster Technology, Inc.
  • Hydrocarbon cracking in a multi-zone cracking furnace
    Patent number: 7718052
    Abstract: A process for independently and concurrently cracking at least two different hydrocarbon feedstocks to olefins. The process is carried out in a furnace for cracking hydrocarbon feed which has at least a first and second independent radiant cracking zone to produce a first cracked product and second cracked product that are separately withdrawn from the furnace.
    Type: Grant
    Filed: October 9, 2007
    Date of Patent: May 18, 2010
    Assignee: Stone & Webster Technology, Inc.
    Inventors: John Brewer, David Brown, Svend Rumbold