Corrosion Behavior of Steels in Supercritical CO₂ for Power Cycle Applications [electronic resource]

• Ngôn ngữ: eng
• Ký hiệu phân loại: 668.971 Technology of other organic products
• Thông tin xuất bản: Washington, D.C. : Oak Ridge, Tenn. : United States. Office of the Assistant Secretary of Energy for Fossil Energy ; Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 2017
• Mô tả vật lý: Size: p. 799-808 : , digital, PDF file.
• Bộ sưu tập: Metadata
• ID: 268062
• Chủ đề: 1. 01 coal, lignite, and peat; 2. 20 fossil-fueled power plants; 3. 36 materials science; 4. 42 engineering; 5. Co2 corrosion

Tóm tắt

 In order to understand issues with corrosion of heat exchanger materials in direct supercritical carbon dioxide (sCO<
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 ) power cycles, a series of autoclave exposure experiments and electrochemical experiments have been conducted. Corrosion behaviors of 347H stainless steel and P91 martensitic-ferrtic steel in sCO<
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  environment have been compared. In autoclave exposure tests performed at 50�C- 245�C and 80 bar. Mass change measurements, surface characterization, and corrosion product analysis have been conducted to understand the corrosion behavior of steels in sCO<
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  containing H<
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 O and O<
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 . Electrochemical tests performed at room temperature and 50�C, a simulation environment of water condensation phase with dissolved CO<
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  was prepared to evaluate the corrosion resistance of materials. From both types of experiments, generally 347H showed higher corrosion resistance than P91.