Title:
改良された炭化水素分子流動接触分解装置
Document Type and Number:
Japanese Patent JP2004503672
Kind Code:
A
Abstract:
A fluidized catalytic cracking system includes a riser for contacting catalyst and hydrocarbon feedstock. The riser has an inner surface that defines a central passage. The central passage acts as a flow path for the catalyst and the hydrocarbon feedstock. A plurality of ribs are disposed on the riser inner surface. The ribs increase the degree of mixing that occurs between the catalyst and the hydrocarbon feedstock within the central passage. In particular, each rib has a contoured inner wall. The contour of the inner wall forces a portion of the catalyst flow inward, toward the hydrocarbon-rich center of the central passage.
Inventors:
Senior, richard, charles
Application Number:
JP2002511869A
Publication Date:
February 05, 2004
Filing Date:
July 13, 2001
Export Citation:
Assignee:
EXXON RESEARCH AND ENGINEERING COMPANY
International Classes:
B01F5/06; B01J8/24; B01J8/26; B01J8/38; B01J8/44; C10G11/18; B01F3/12; (IPC1-7): C10G11/18; B01J8/24; B01J8/44
Foreign References:
| EP0960929A1 | 1999-12-01 |
Attorney, Agent or Firm:
Kenji Kawabi