Corrosion in coal liquefaction plant fractionation columns. [38 materials exposed in SRC pilot plants] [electronic resource].

Published:: Oak Ridge, Tenn. : Oak Ridge National Laboratory, [date of publication not identified]
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description:: Pages: 9 : digital, PDF file
Additional Creators:: Oak Ridge National Laboratory and United States. Department of Energy. Office of Scientific and Technical Information

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Summary:

The four major operating coal liquefaction pilot plants in the United States have all experienced severe corrosion in atmospheric-pressure fractionation columns. Corrosion rates of carbon steel and 18-8 (Ni-Cr) stainless steels have been as high as 25 and 6.4 mm/year, respectively. The severity of the corrosion is related to the chlorine content of the feed coals and the operating temperature of the columns. Laboratory and pilot plant exposures of corrosion coupons permitted a ranking of alloys according to resistance to corrosion in this environment. Analyses of coal liquids identified several chlorine compounds that were transported to the fractionators and caused corrosion. We have proposed corrodent transport and corrosion mechanisms based on this work and have suggested process changes to remove the corrodent.

Report Numbers:

E 1.99:conf-820510-4
conf-820510-4

Subject(s):

Coal, Lignite, And Peat

Other Subject(s):

Note:

Published through SciTech Connect.
"conf-820510-4"
"DE82015681"
Spring meeting for the Society for the Advancement of Materials and Process Engineering, San Diego, CA, USA, 4 May 1982.
Keiser, J R; Irvine, A R; Judkins, R R; Baylor, V B.

Funding Information:

W-7405-ENG-26

View MARC record | catkey: 13846416