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Thread: Article: Carbamate leakage from Stripper outlet line

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    Article: Carbamate leakage from Stripper outlet line

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  • #2

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    first of all how come your stripper out let line is of CS. CS are not recommended for high pressure and temp urea/carbamate handling. It should be of 316L urea grade. Its really surprising me! Its a very risky operating with urea/carbamate leakage since urea/carbamate are highly corrosive for CS and CS is no where used.

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    Re: Article: Carbamate leakage from Stripper outlet line

    Quote Originally Posted by rawngsula

    [This link Point to another website Only registered and activated users can see links.]

    first of all how come your stripper out let line is of CS. CS are not recommended for high pressure and temp urea/carbamate handling. It should be of 316L urea grade. Its really surprising me! Its a very risky operating with urea/carbamate leakage since urea/carbamate are highly corrosive for CS and CS is no where used.
    Yes, I'm agree with Rawngsula. SS 316L urea grade, 25Cr22Ni2Mo, 22Cr5Ni duplex, Ti and Zr are used as construction or lining materials in the synthesis equipment. Ammonium carbamate solutions in contact with carbon steel will cause corrosion rates in excess of 900 mmpy. Carbamate in carbon steel in urea synthesis can lead to catastrophic failures.

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