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Storage Vessels Used in Hydrogen

Storage Vessels Used in Hydrogen

Storage Vessels Used in Hydrogen

(OP)
Hi everibody.

I'm working in the design of steel storage vessel for hydrogen but I don't know exactly What material in steel I will used.

Because I have the problem the difusivity of hidrogen.

I help me.

Best regards.

Elmer

RE: Storage Vessels Used in Hydrogen

Carbon steel with PWHT is adequate to reduce hydrogen diffusivity. Check code requirements as well.

RE: Storage Vessels Used in Hydrogen

You need to obtain the following;
1. ASME B31.12 or
2. ASME Standards Technology Publication STP-PT-006 Design Guidelines for Hydrogen Piping and Pipelines

The same concepts apply for storage vessels.

RE: Storage Vessels Used in Hydrogen

(OP)
I Can to use ASME SA 36? for the shell and the heads.

The dimensions is 1910 mm diameter and 10,500 mm height

Best regards.

Elmer

RE: Storage Vessels Used in Hydrogen

Elmer12,

Check with UCS-6(b) for the restrictions on the use of SA-36 plate.

RE: Storage Vessels Used in Hydrogen

A-36 without any UT-testing for laminations is a terrible choice. Use a pressure-vessel grade steel, like SA-516 Gr. 65 or 70. The steel also should be rated as 'HIC resistant' - hydrogen induced cracking. Yes, it costs more. But I have also seen a rather expensive 45-foot diameter spherical tank scrapped, due to HIC and hydrogen blisters. The service was somewhat more severe than just storing plain hydrogen, but it still was destroyed by the hydrogen. The H2 migrated into the many small laminations and other minor flaws [material met A-36 requirements] inherent in rolled plate. Look up "HIC" and "Hydrogen blistering".
The fewer and smaller the flaws in your steel, the longer it will last in hydrogen service.

RE: Storage Vessels Used in Hydrogen

We ARE assuming this is a simple envirnmental-temperature pressurized H2 outside, right?

Not enclosed in a habitated building?

RE: Storage Vessels Used in Hydrogen

I would have thought that the choice of metallurgy for containment of hydrogen would lean towards chrome-moly or chrome-nickel steels, based on what I have seen in steam-methane reformer processes in hydrogen plants. What pressures are involved and, of interest to me, is the hydrogen very pure and dry? The reason I ask is that I suspect that if there is some moisture present it would tend to promote the dissociation into atomic hydrogen and accelerate the rate of hydrogen charging. Otherwise, some of the papers I have read conclude that the rate of hydrogen charging becomes a pressure-dependent funcion.

RE: Storage Vessels Used in Hydrogen

(OP)
The storage vessel:
Diameter: 75 in.
Heigth: 413 in.
Pressure of working: 290 psi.
Containg: hydrogen in gas.
Utility: storage for the hydrogenation of fats
Material: ASME SA285 grade C, ASME SA516 grade 70, ASME SA612 or AISI 316? In process of selection.

what do you say????????

What material is adequate?.

RE: Storage Vessels Used in Hydrogen

I'd build with 516 gr.70, and PWHT

RE: Storage Vessels Used in Hydrogen

Often if you see such a vessel in stainless it is because they couldn't PWHT.

= = = = = = = = = = = = = = = = = = = =
Plymouth Tube

RE: Storage Vessels Used in Hydrogen

Snorgy,

High Temperature Hydrogen Cracking is a condition that degrades carbon steel and is mitigated by the use of chrome moly steels.

The problem is increased when the hydrogen is stored at high temperatures. The industry uses what are called "Nelson Curves" ( developed in the late 1940s) to evaluate the risk. API has a guideline regarding the safe selection of materials.

http://www.techstreet.com/products/21400

Info here:

http://www.nde.com/Recent%20Activities%20HTHA%20by...

Services here:
http://www.mistrasgroup.com/services/company/publi...

Recent presentation on Refinery disaster here:

http://www.csb.gov/assets/1/19/Tesoro_Listening_Se...

MJCronin
Sr. Process Engineer
Venture Engineering & Construction
www.VentureEngr.com

RE: Storage Vessels Used in Hydrogen

Thanks, MJCronin.

I will check those links out.

RE: Storage Vessels Used in Hydrogen

MJCronin,

Thanks again for the above links, they pretty much precisely answer the OP's questions. The last link was particularly interesting (Anacortes accident) in that one of the findings in the presentation was that the Nelson Curve for carbon steel may be unreliable, and so a recommendation is made to lower it to coincide with an upper temperature limit of 400 F throughout the H2 PP range.

I also came across a PDF describing Chevron's experience with carbon steels in hydrogen service in refineries, and their conclusion was to eliminate stress concentrators and threads and to make the pipe and vessels "beefy", in their words.

RE: Storage Vessels Used in Hydrogen

(OP)
thanks MJ Cronin

I will check those links out.

Best regards,

Elmer

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