Patents by Inventor Michel Jacques Henry

Michel Jacques Henry 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).

  • Fractionation of aromatic streams
    Patent number: 4041091
    Abstract: A fractionation scheme applicable to a transalkylation process in which an admixture of toluene and C.sub.9 alkylbenzene is converted to benzene and C.sub.8 alkylbenzene is disclosed. Transalkylation zone effluent containing C.sub.6 to C.sub.10 + alkylbenzene is passed into a fractionation zone wherein an admixture of benzene and toluene is withdrawn as a lower boiling fraction, and C.sub.8 + alkylbenzenes are withdrawn in admixture as a higher boiling fraction. The benzene and toluene fraction is introduced into a fractionator and separated therein. The C.sub.8 + fraction is fractionated into xylenes and C.sub.9 +. The C.sub.9 + fraction is fractionated into a C.sub.9 /C.sub.10 overhead fraction and C.sub.10 + bottoms fraction. Toluene and C.sub.9 /C.sub.10 are then fed to the transalkylation zone. Significant savings in utilities are realized by using a xylene vapor fraction to reboil the column fractionating transalkylation zone effluent, and by using the C.sub.9 /C.sub.
    Type: Grant
    Filed: February 19, 1976
    Date of Patent: August 9, 1977
    Assignee: UOP Inc.
    Inventor: Michel Jacques Henry