material construciton hydrogenation autoclave
material construciton hydrogenation autoclave
(OP)
Acting as a consultant, I have been asked to comment on design a hydrogenation autoclave operating at 120C and 1000 psig.
Is there any problem with using SA 516 GR 70 Normalized HIC as material of construction?
thanks
Dan
Is there any problem with using SA 516 GR 70 Normalized HIC as material of construction?
thanks
Dan





RE: material construciton hydrogenation autoclave
Also review API RP-941 for Nelson curves.
RE: material construciton hydrogenation autoclave
Review of the Nelson curve indicate the proposed choice is acceptable. However, as you has noted, I find all references in literature for autoclaves are for more exotic materials of construction. 300 series stainless steel or higher. I wonder shat I am missing.
RE: material construciton hydrogenation autoclave
That is why these are usually made from Ni alloys such as 625.
They also are usually designed with higher safety factors, such as 5 to 1.
1000 gal is a large volume at that pressure, play it safe.
We used small ones, about 1gal. They were 316L and were designed at 6 to 1 SF.
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P.E. Metallurgy, Plymouth Tube
RE: material construciton hydrogenation autoclave
RE: material construciton hydrogenation autoclave
RE: material construciton hydrogenation autoclave
The raw material and products are compatible carbon steel. I do wonder about the effect of Fe ions on the catalyst.
I assume full x-ray and/or dye penetration of all welds would is recommended.
Dan
RE: material construciton hydrogenation autoclave
RE: material construciton hydrogenation autoclave