Methanol Storage Tank
Design and detailing of a 4m³ rectangular tank for storing methanol at atmospheric pressure. Stainless-steel sheet and an external RHS frame provide a compact, reinforced vessel with dedicated connections for filling, venting, instrumentation, drainage and inspection.
SECTOR
Process Plant & Utilities
SERVICE
Design Engineering
MATERIAL
Stainless Steel
YEAR
2026
Project at a glance
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Efficient Use of Space
The client required 4m³ of methanol storage within a restricted plant area. A rectangular vessel made fuller use of the available space than a cylindrical tank occupying a similar envelope.
The tank needed to accommodate filling, withdrawal, atmospheric venting, level monitoring and internal inspection while keeping routine operating points accessible.
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Ease of Manufacture
Plate sizes and stiffener members were selected around standard material sizes, simplifying procurement, cutting and workshop assembly while limiting unnecessary offcuts.
The RHS stiffeners divide the walls into manageable panel spans and control deflection under hydrostatic loading. Stiffener positions were coordinated with the manway, nozzles and other local openings.
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Keep it Simple
Standard pipe, flange, plate and member sizes kept procurement and fabrication simple. Fewer specialist operations helped shorten the production programme and control cost.
Accessible valves, instrument connections and a side manway support easy maintenance, inspection and cleaning.
Key Outcomes
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4.0m³ capacity using 30% less floor area than the equivalent cylindrical design
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Overfull tank scenario verified against 26kN peak load
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Easy access connections reduce maintenance and inspection time
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Using standardised materials reduced fabrication lead time by 6 weeks
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