hello material is used for pipe line and wellhead facility in sour service , shall meet the NACE MR0175 . According to part 1.3.33 of this standard , mr0175 not apply to refinery. if we want select material for amin plant of refinery we sould use which standard? thanks

hi tank you for your answer. we want to designe filter separator.it will instal for filtering of feed of sour gas treating plant by use of amine. d. temp. =70c d.press.=78bar tanks

>hello > material is used for pipe line and wellhead facility in >sour service , shall meet the NACE MR0175 . According to >part 1.3.33 of this standard , mr0175 not apply to >refinery. >if we want select material for amin plant of refinery we >sould use which standard? >thanks To avoid Environmental cracking in an Amine Unit you can use NACE MR0175 as a reference, as well as meeting the requirements for NACE RP 0472. Other considerations may be ammonium bisulfide, amine Corrosion, etc. (proper metallurgy and/or water wash injection will be needed). You may want to consult a corrosion engineer with experience in designing Amine Units. Good Luck Scott123