Read e-book online Amine Unit Corrosion in Refineries PDF

By J Harston, F Ropital

ISBN-10: 1845692373

ISBN-13: 9781845692377

The corrosion of carbon steels in amine devices used for fuel remedy in refining operations is a tremendous challenge for the petrochemical undefined. Maximising amine unit reliability, including enhancing throughput, flow and remedy ability, calls for better methods of measuring and predicting corrosion charges. in spite of the fact that, there was an absence of information on corrosion. This worthy file is helping to treatment this lack of awareness through summarising findings from over 30 crops. It covers such amine forms as methyl diethanolamine (MDEA), diethanolamine (DEA), monoethanolamine (MEA) and di-isopropanolamine (DIPA), and makes tips on fabrics and approach parameters to maximize amine unit potency and reliability.

  • Covers such amine varieties as Methyl Diethanolamine (MDEA) and Di-isopropanolamine
  • Makes tips about fabrics and technique parameters to maximize amine unit potency and reliability

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Extra resources for Amine Unit Corrosion in Refineries

Example text

05 mol mol–1 ? 6 (formate and acetate) 1–5 Not known ? 0? 4 m s–1 for stainless steel. 2 Location of problems per item of equipment Regenerators (7), (8), (11), (12), (13), (16), (17), (18) Regenerator overheads drum (1), (4), (5), (12) Regenerator overheads condenser Regenerator overheads piping (4), (5), (12) (2), (5) Regenerator reboiler (1), (7), (8), (11), (12), (13), (14), (15), (17), (18), (20) Rich–lean exchanger (3), (6), (7), (9), (11), (12), (14), (18) Lean amine (1), (11) 5 Experiences of four plants using monoethanolamine The plant numbers are given in parentheses.

1 Amine parameters and foaming Amine Concentration (wt%) Circulation 22 20 25 25–30 16–30 30 40 t h–1 76 t h–1 80 t h–1 30–50 t h–1 30–65 t h–1 35 t h–1 Loss 30 t N/A N/A 27 t 10 t 67 t a–1 a–1 a–1 a–1 Foaming Plant No No No Sometimes Noticed Sometimes (1) (2) (3) (4) (5) (6) Experiences of twenty-one plants using diethanolamine Amine Concentration (wt%) Circulation 16–23 22–27 20–24 29 ? 8 30 45–65 t h–1 15–30 t h–1 64 t h–1 170 m3 h–1 ? 2 23 Loss Foaming Plant 52 t a–1 26 t a–1 14 t a–1 60 t a–1 ?

4 m s–1 for stainless steel. 2 Location of problems per item of equipment Regenerators (7), (8), (11), (12), (13), (16), (17), (18) Regenerator overheads drum (1), (4), (5), (12) Regenerator overheads condenser Regenerator overheads piping (4), (5), (12) (2), (5) Regenerator reboiler (1), (7), (8), (11), (12), (13), (14), (15), (17), (18), (20) Rich–lean exchanger (3), (6), (7), (9), (11), (12), (14), (18) Lean amine (1), (11) 5 Experiences of four plants using monoethanolamine The plant numbers are given in parentheses.

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Amine Unit Corrosion in Refineries by J Harston, F Ropital


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