Elementsexim is well known as Ammonia Gas Storage Tank Manufacturer in India. Since the beginning of industrial ammonia production about 100 years ago, ammonia has been stored as a liquid. Ammonia was first kept in pressurized containers like bullets and Horton spheres.
Spheres were commonly used to store up to 2,000 tonnes of material. At plant sites and distribution terminals today, atmospheric ammonia storage tanks are used to store up to 50,000 tonnes of ammonia.
For two reasons, low-pressure ammonia storage is widely used. For starters, it necessitates far less capital per unit volume. Second, it is safer than sphere storage, which uses higher-than-atmospheric pressures. With the widespread use of large-scale industrial ammonia production, it is now common to store ammonia at atmospheric pressure and at -33°C.
TANK DESIGN AND SAFETY ASPECTS
- The atmospheric ammonia storage tank should have a double-wall, double-integrity design with insulation on the outer wall and internal pressure of 14 kPag.
- The tank should be designed, fabricated, installed, and tested according to the API standard.
- Appendix R, page 620 API625, a new code published in 2010, defines the various tank systems (single, double, and full containment). It refers to the 2012 edition of API 620 for steel tank construction and the 2010 edition of ACI 376 for concrete tank construction.
- To prevent the ground from freezing beneath the tank, the tank should be built on an elevated piled concrete slab foundation. This design will prevent frost heave damage to the foundations and the tank itself. The top of the concrete slab should be about two meters higher than the surrounding area.
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