Title:
【発明の名称】改良されたワックス水素異性化方法
Document Type and Number:
Japanese Patent JP2002521499
Kind Code:
A
Abstract:
Waxy feeds are treated under hydroisomerization conditions to produce good yields of an isomerate product of high VI by using a silica-alumina based catalyst in which the silica-alumina has a pore volume less of 0.99 ml/gm (H2O), an alumina content in the range of 35 to 55 wt % and an isoelectric point in the range of 4.5 to 6.5. A lube fraction of the isomerate is dewaxed to provide a lube basestock of high VI. The silica-alumina may be modified with a rare earth oxide or yttria or boria or magnesia in which instance the modified catalyst has an isoelectric point greater than but no more than 2 points greater than base the silica-alumina.
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Inventors:
Relay, kennis, lloyd
Murphy, William, John
Cody, Ian, Alfred
Sored, Stuart, Leon
Mac vicker, gary, blythe
Miseo, Sabato
Murphy, William, John
Cody, Ian, Alfred
Sored, Stuart, Leon
Mac vicker, gary, blythe
Miseo, Sabato
Application Number:
JP2000531521A
Publication Date:
July 16, 2002
Filing Date:
February 12, 1999
Export Citation:
Assignee:
EXXON RESEARCH AND ENGINEERING COMPANY
International Classes:
C07C5/00; C07C5/13; C07C5/22; C10G21/00; C10G35/04; C10G35/06; C10G35/095; C10G45/62; C10G45/64; C10G67/04; C10G71/00; (IPC1-7): C10G71/00; C07C5/00; C07C5/13; C07C5/22; C10G21/00; C10G35/04; C10G35/06; C10G35/095
Attorney, Agent or Firm:
Kenji Kawabi