发明名称 |
ALUMINA FORMING BIMETALLIC TUBE FOR REFINERY PROCESS FURNACES AND METHOD OF MAKING AND USING |
摘要 |
Provided is a bimetallic tube for transport of hydrocarbon feedstocks in refinery process furnaces, and more particularly in furnace radiant coils, including: i) an outer tube layer being formed from carbon steels or low chromium steels comprising less than 15.0 wt.% Cr based on the total weight of the steel; ii) an inner tube layer being formed from- an alumina forming bulk alloy including 5.0 to 10.0 wt.% of Al, 20.0 wt.% to 25.0 wt.% Cr, less than 0.4 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. |
申请公布号 |
CA2815357(A1) |
申请公布日期 |
2012.04.26 |
申请号 |
CA20112815357 |
申请日期 |
2011.10.17 |
申请人 |
EXXONMOBIL RESEARCH AND ENGINEERING COMPANY |
发明人 |
CHUN, CHANGMIN;DEUTSCH, DAVID SAMUEL;MCCRAY, VANCE A.;FEATHER, JAMES E. |
分类号 |
B21D39/00 |
主分类号 |
B21D39/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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