Title:
【発明の名称】ガソリン脱硫法
Document Type and Number:
Japanese Patent JP2001519834
Kind Code:
A
Abstract:
A catalytic cracked naphtha is desulfurized with minimum loss of olefins and octane. The naphtha is fed to a first distillation column reactor which acts as a depentanizer or dehexanizer with the lighter material containing most of the olefins and mercaptans being boiled up into a first distillation reaction zone where the mercaptans are reacted with diolefins to form sulfides which are removed in the bottoms along with any higher boiling sulfur compounds. The bottoms are subjected to hydrodesulfurization in a second distillation column reactor where the sulfur compounds are converted to H2S and removed. The lighter fraction containing most of the olefins is thus not subjected to the more harsh hydrogenation conditions of the second reactor.
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Inventors:
Hahn, Dennis
Hicky, Thomas Pea
Hicky, Thomas Pea
Application Number:
JP51024197A
Publication Date:
October 23, 2001
Filing Date:
July 12, 1996
Export Citation:
Assignee:
Catholic Distillation Technologies
International Classes:
C10G35/06; C10G45/06; C10G45/08; C10G45/10; C10G45/32; C10G65/06; C10G65/04; (IPC1-7): C10G65/04; C10G35/06; C10G45/06; C10G45/08; C10G45/10; C10G45/32
Attorney, Agent or Firm:
Kazuo Shamoto (6 outside)