Title:
FCCナフサからベンゼンを減少し、硫黄を除去する方法
Document Type and Number:
Japanese Patent JP5282039
Kind Code:
B2
Abstract:
A process for the removal of sulfur compounds and benzene of a catalytically cracked petroleum naphtha comprising benzene, organic sulfur compounds and olefins, by fractionating the cracked naphtha into a relatively low boiling range, olefinic, light catalytic naphtha (LCN) and an olefinic heavy catalytic naphtha (HCN) which boils above the range of the LCN the boiling ranges of the LCN and the HCN being defined by a cut point selected to maintain most of the benzene in the cracked naphtha in the LCN together with olefins in the boiling range of the LCN. The LCN is subjected to an optional non-hydrogenative desulfurization step followed by a fixed bed alkylation step in which the benzene in the LCN is alkylated with the olefins contained in this fraction. The HCN is treated by a similar an alkylation step using the olefins contained in this fraction to alkylate the sulfur compounds, forming alkylated products which boil above the gasoline boiling range. The LCN and HCN are then fractionated to remove light ends and higher boiling sulfur reaction products (disulfides, alkylated thiophenes) boiling above the gasoline boiling range.
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Inventors:
Umansky, Benjamin, Es.
Stanley, James, F.
Meri, Thomas, Earl.
Smith, Sean, Sea.
Round Tree, Eugene, M.
Stanley, James, F.
Meri, Thomas, Earl.
Smith, Sean, Sea.
Round Tree, Eugene, M.
Application Number:
JP2009533338A
Publication Date:
September 04, 2013
Filing Date:
October 16, 2007
Export Citation:
Assignee:
EXXON RESEARCH AND ENGINEERING COMPANY
International Classes:
C10G61/00; C10G35/095
Domestic Patent References:
| JP2001508829A | ||||
| JP2002524608A |
Attorney, Agent or Firm:
Kenji Kawabi