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ohiou1107788784.pdf (5.9 MB)
ETD Abstract Container
Abstract Header
H
2
S Multiphase Flow Loop: CO
2
Corrosion in the Presence of Trace Amounts of Hydrogen Sulfide
Author Info
Brown, Bruce N.
Permalink:
http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1107788784
Abstract Details
Year and Degree
2004, Master of Science (MS), Ohio University, Chemical Engineering (Engineering).
Abstract
An experimental series was conducted to measure the effect of low concentrations of H
2
S (3, 15, 100 ppm) under “non-film forming conditions” for iron carbonate at pH 4 in a CO
2
saturated environment on the corrosion rates of UNS C1018 and X65 carbon steels at two temperatures (60°C and 80°C). These experiments in the Hydrogen Sulfide Multiphase Flow Loop provide the first example of the effect of H
2
S concentration on corrosion rates measured concurrently in single phase and multiphase flow in a CO
2
saturated environment. At 60°C and 80°C, any addition of H
2
S retarded the corrosion rate in both single phase and multiphase flow conditions over a 96-hour exposure period as compared to the corrosion rate measured under the same partial pressure of CO
2
without the presence of H
2
S. At pH 4, films of 5 to 10μm were produced over 96 hours for UNS C1018 flush-mounted coupons in a system with a 100ppm concentration of H
2
S in the gas phase. Electron dispersion spectroscopy of the films provides proof of an iron sulfide (FeS) film. Thinner films were developed under conditions of 3ppm and 15ppm H
2
S concentrations, but film thickness was not as easily quantified by scanning electron microscopy. Overall, higher corrosion rates consistently occurred in multiphase flow when compared to those measured under single phase conditions. Pitting corrosion was observed at 80°C for both 3ppm and 15ppm H
2
S concentrations. System validation tests on the Hydrogen Sulfide Flow Loop system prior to this experimentation show repeatability and good comparison to another flow system under the same operating conditions without the presence of H
2
S.
Committee
Srdjan Nesic (Advisor)
Pages
123 p.
Subject Headings
Engineering, Chemical
Keywords
H
2
S / CO
2
Corrosion
;
Multiphase
;
Iron Sulfide Film
;
Mackinawite
Recommended Citations
Refworks
EndNote
RIS
Mendeley
Citations
Brown, B. N. (2004).
H
2
S Multiphase Flow Loop: CO
2
Corrosion in the Presence of Trace Amounts of Hydrogen Sulfide
[Master's thesis, Ohio University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1107788784
APA Style (7th edition)
Brown, Bruce.
H
2
S Multiphase Flow Loop: CO
2
Corrosion in the Presence of Trace Amounts of Hydrogen Sulfide.
2004. Ohio University, Master's thesis.
OhioLINK Electronic Theses and Dissertations Center
, http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1107788784.
MLA Style (8th edition)
Brown, Bruce. "H
2
S Multiphase Flow Loop: CO
2
Corrosion in the Presence of Trace Amounts of Hydrogen Sulfide." Master's thesis, Ohio University, 2004. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1107788784
Chicago Manual of Style (17th edition)
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Document number:
ohiou1107788784
Download Count:
3,745
Copyright Info
© 2004, all rights reserved.
This open access ETD is published by Ohio University and OhioLINK.