Design Code/Standard of Circulating Fluidized Bed Gasifier

[akbjf]

I am trying to make Equipment Specification document of gasifier (circulating fluidized bed) as part of FEED project (coal gasification power plant).
Now, I am confused to search which code/standard would suit the best to this equipment. Its pressure is about 7 psig, 850 deg C temperature. I was going to use ASME BPVC Section VIII but it is for pressure vessel >15psig.

What standard shall I use to this gasifier?

 

[TGS4]

Where in the world will it be located? There may be some statutory requirements.

 

[akbjf]

It will be located in Indonesia, near Borneo Island. Unfortunately, there haven't been any statutory requirements about it.

 

[XL83NL]

VIII-1 can be used for < 15 psi. What's holding you back?

 

[moltenmetal]

Equipment like this is typically designed and fabricated to ASME VIII-1 but not stamped.

 

[akbjf]

I have decided to follow the ASME VIII-1, thanks guys for your responses, I really appreciate those