All piping must be supported independent of tank. Pipe supports must be installed after the flexible joint to allow the tank to expand and contract under normal service conditions. Polyethylene tanks expand and contract both laterally and vertically. The expansion hose or joint must accommodate for this expansion. The tank must maintain atmospheric pressure.
Vents must be sized for a minimum of two times the largest inlet or outlet port for pneumatically filled tanks. Tanks vented through a drying system, the vent size cannot be reduced passing through the dryer. Adequate venting must always be maintained. Additional pressure vacuum vents should be installed to ensure proper tank venting. Under no circumstances should tank be placed under pressure or vacuum conditions. When practical, tanks should be kept from direct sunlight to avoid excessive heat.
Excessive heat will degrade the chemical and will accelerate chemical reaction with tank materials. Heat will also cause additional off gassing and additional odors. HCl storage sometimes requires an accompanying Sodium hydroxide NaOH scrubber tank for vent odor scrubbing to prevent excessive odors.
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Chemical Engineering publishes FREE eletters that bring our original content to our readers in an easily accessible email format about once a week. Subscribe Now. Sulfuric acid poses the following serious storage challenges:. All of these things should be taken into consideration when designing your sulfuric acid storage system. For more information on sulfuric acid challenges, read our sulfuric acid storage guide.
You can use any tank less than 11, gallons and less than 15 feet tall. Other storage requirements for sulfuric acid vary, depending on the concentration of the chemical. The OR system is designed to provide longer useful life by helping to reduce the oxidation of the polyethylene tank system. Topics: Chemicals. What Is Sulfuric Acid? Sulfuric acid poses the following serious storage challenges: Sulfuric acid is extremely heavy and will test the mechanical integrity of your storage tank.
The inherent weight of sulfuric acid requires a strong material that can withstand the static load pressure constantly pressing against the bottom third of the storage tank. Sulfuric acid is an aggressive oxidizer.
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