What material should be used for hydrochloric acid storage tanks?
Thread Content
Our company is going to install some equipment that requires hydrochloric acid, and I have been assigned the task of handling the bidding process as well as the management of the tanks used for storing this acid. All I know about storing hydrochloric acid is that fiberglass tanks can be used for this purpose; does anyone among you know of any other suitable materials for such storage tanks? Also, I don’t know much about fiberglass storage tanks. Could fellow sailors provide some information on them?
It can be made from PVC or PP materials, depending on the size of your hydrochloric acid storage tank
It mainly depends on the operating pressure and temperature. If the pressure and temperature are not high, fiberglass can be chosen, or carbon steel lined with rubber is an option as well ； If the temperature is high, carbon steel linings such as F4 or F46 should be considered ； Of course, Hastelloy can also be chosen.
Which material is suitable for use when the storage tank is at atmospheric pressure and a temperature of 90°C?
There’s also the concentration… and what’s your budget? Once we know the budget, it will be clear whether to choose a metal or non-metal material… You should share some details about your company’s plans… Just talking about hydrochloric acid storage tanks is too vague a scope….
Hydrochloric acid storage tanks are now mostly made of fiberglass-reinforced plastic. The original poster can contact me to get some detailed information on fiberglass storage tanks. jizhoublg@163.com
Small and medium-sized hydrochloric acid storage tanks can also be made of rigid PVC or PP; for larger tanks, fiberglass is considered more reliable.
At 90 degrees, is heat insulation still necessary? Otherwise, the alternating temperature changes are too much for non-metallic materials to handle.
If the temperature and concentration are not very high, glass-lined materials can be considered.
Hydrochloric acid storage tanks can use carbon steel lined equipment. Fiberglass-reinforced plastic equipment is preferred, with hand-laid fabrication being the best option. There have been cases in power plants where mechanically manufactured fiberglass-reinforced plastic tanks suffered from corrosion and leaks; therefore, such tanks are generally used with caution in power systems, as leak points in fiberglass-reinforced plastic materials are difficult to locate.
Optional: PVC, PP, steel-lined PE, PO, etc., fiberglass