Ooops,
In that field I guess I have the same experience as you/all. I fill up the car several times a month eheheh.
Now serious.
I never did a project in that field but it should not be diferent from every project sequence.
Eng. / Procurement / detail engineering / construction / mechanical,electrical, i&C erection / Commissioning and handover to client
The tanks:
1 - need to be designed according API or other applicable standard (some basic data are required: volume / enviroment temp / etc). There should be standard solutions in this specific market.
2 - Then prepare a file with the engineering and comercial data and contact possible suppliers. Place PO and have the inputs from tanks supplier (inputs to civil, mechanical, electrical and I&C.
3 - Give inputs to detail design which will have to come up with detailed engineering in all disciplines involved.
4 - Give detail design to construction / erection company.
Construction it self:
A - Normaly starts with survey / excavation
B - Build whatever defined in civil detail eng.
C - Erect tanks
D - Erect other mech. / elect. / I&C systems and complete civil.
E - Run necessary testing.
F - I guess some certification is required from relevant entities along process
G - At the end milestone ready for first fuel
OTHER OPTION:
Since these projects are very specific and it should exist in the market specialized companyes you can allways make provisional enquiries and ask the proposals to include Time Schedules. The you can use them to develop and integrate your overall project.
As I said I do not have experience in this type of project but nevertheless here you have my thoughts
I Hope it helps you
BR
JMFrade