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Copper Strip Corrosion failure!

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quangkhoa90

Chemical
Joined
May 19, 2014
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18
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VN
Dear experts,

We are LPG producer and we are planning to import LPG from other producers to increase our LPG market share.
However, LPG produced by other producers in the region contains H2S up to 10 ppm wt and Total Sulfur up to 40 ppm wt, that leads to the copper strip corrosion failure (class 3). Hence, we need to blend this LPG with our LPG in order to decrease the H2S fraction to bring the copper strip corrosion to class 1. Nevertheless, we donot know how much the blend ratio should be.

As I have little knowledge on this field, could you please recommend some articles/advice and share your experience relating to the subject.

Thank you very much.

P/s: I am not good at English, thanks for your comprehension.
 
 https://files.engineering.com/getfile.aspx?folder=e9b7663c-e79b-47b1-97e8-39f32f7505d3&file=LPG_specification,_C.S.C_class_3.pdf
Apart from safety concerns, copper is unsuitable for this service. Stainless steel is required.

 
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