Download Amine unit corrosion in refineries EFC46 (European by J D Harston, F Ropital PDF

By J D Harston, F Ropital

The corrosion of carbon steels in amine devices used for fuel therapy in refining operations is an immense challenge for the petrochemical undefined. Maximising amine unit reliability, including enhancing throughput, stream and therapy skill, calls for more suitable methods of measuring and predicting corrosion charges. although, there was a scarcity of information on corrosion. This worthy file is helping to treatment this lack of expertise through summarising findings from over 30 vegetation. It covers such amine forms as methyl diethanolamine (MDEA), diethanolamine (DEA), monoethanolamine (MEA) and di-isopropanolamine (DIPA), and makes tips about fabrics and strategy parameters to maximize amine unit potency and reliability.

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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 ? 5 t a–1 (4 ¥ inventory) No Rare Yes Yes ? 4 mol mol–1? 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) 30 Amine unit corrosion in refineries 5 Experiences of four plants using monoethanolamine The plant numbers are given in parentheses.

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) 30 Amine unit corrosion in refineries 5 Experiences of four plants using monoethanolamine The plant numbers are given in parentheses.

5 t a–1 (4 ¥ inventory) No Rare Yes Yes ? 4 mol mol–1? 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) 30 Amine unit corrosion in refineries 5 Experiences of four plants using monoethanolamine The plant numbers are given in parentheses.

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