Title:
An alumina formation bimetal pipe, manufacture, and directions for use
Document Type and Number:
Japanese Patent JP5938044
Kind Code:
B2
Abstract:
Provided is a bimetallic tube for transport of hydrocarbon feedstocks in a petrochemical process unit and/or refinery process unit, including: i) an outer tube layer being formed from a steam cracker alloy including at least 18.0 wt. % Cr and at least 10.0 wt. % Ni; ii) an inner tube layer being formed from an alumina forming bulk alloy including 5.0 to 10.0 wt. % of Al, 18.0 wt. % to 25.0 wt. % Cr, less than 0.5 wt. % Si, and at least 35.0 wt. % Fe with the balance being Ni, wherein the inner tube layer is formed plasma powder welding the alumina forming bulk alloy on the inner surface of the outer tube layer; and iii) an oxide layer formed on the surface of the inner tube layer, wherein the oxide layer is substantially comprised of alumina, chromia, silica, mullite, spinels, or mixtures thereof.
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Inventors:
Changmin Chun
Di Samuel Deutsch
James E Feather
Jeffrey P. Jones
David B Spicer
Di Samuel Deutsch
James E Feather
Jeffrey P. Jones
David B Spicer
Application Number:
JP2013534986A
Publication Date:
June 22, 2016
Filing Date:
October 17, 2011
Export Citation:
Assignee:
EXXON RESEARCH AND ENGINEERING COMPANY
International Classes:
F16L9/02; B21C37/06; B23K10/02; C10G9/20; F16L9/14
Domestic Patent References:
| JP2009511846A | ||||
| JP2011524467A | ||||
| JP2007505210A | ||||
| JP2001514327A | ||||
| JP7233886A | ||||
| JP2002239697A |
Foreign References:
| US20090152134 | ||||
| WO2009152134A1 | ||||
| WO2004113588A1 | ||||
| US20080020216 | ||||
| US6296953 | ||||
| US20090246550 |
Attorney, Agent or Firm:
Samejima Mutsumi
Keiichi
Yoshida Tamaki
Fukumasa Mitsuru
Keiichi
Yoshida Tamaki
Fukumasa Mitsuru