Glass lined chemical reactor

[ormoc817]

Can a glass lined chemical reactor be classified as a pressure vessel?

Internal vessel:

Borosilicate glass with min/max MAP = -1.0/0.5 barg, min/max allowable temperature = -60/200 deg C, volume of 107 liters, with an agitator, and a rupture disk. Class 1 chemicals are used in the chemical process.

External jacket:

Hastelloy material, volume of 15 liters, with min/max MAP = -1.0/10 barg, min/max allowable temperature = -60/200 C.

The equipment has a Declaration of Conformity from the manufacturer stating that the equipment fulfills the regulation 97/23/EG of the European Parliament and the council of May 29th, 1997.

Thanks.

 

[speco]

Ormoc817,

If you do a Google search for Glass Lined Vessels, you will find a few manufacturers. The best know (at least in the US) are Pfaudler and De Dietrich. Both have websites. You can get them with ASME and/or PED specs.

Regards,

Speco

 

[ormoc817]

Thanks Speco.

Can a glass lined vessel, with two different MAP's (0.5 bar for the internal glass vessel and 10 bar for the external steel jacket), be considered as a single vessel and classified as a pressure vessel based on the higher MAP? Volume is >1.5 cu. ft. and diameter >6 inches.

Regards,
Ormoc817

 

[speco]

Ormoc817,

I'm not an expert on the ASME Code. However, I believe that it can be considered as a single vessel. The actual shell calculations, as I understand it, depend on the type of external jacket. That is, whether it is a conventional jacket or a dimpled jacket. In the conventional jacket, the external pressure of the jacket on the shell must be considered.

I would defer to your ASME Code Authorized Inspector for real details on this. Due to the volume and dimensions of the vessel, you may or may not need ASME Code. It really depends on your customer's specifications, and the legal or insurance issues of the location of installation.

Regards,

Speco