Storage refrigerated

The decomposition kinetics of an organic peroxide, as judged by 10-h HLT, largely determines the suitabiUty of a particular peroxide initiator in an end use appHcation (22). Other important factors ate melting point, solubiUty, cost, safety, efficiency, necessity for refrigerated storage and shipment, compatibihty with production systems, effects on the finished product, and potential for activation. 

Refrigerated storage tanks are iasulated usiag great care to minimize heat loss and access of air and moisture to the iasulation or metal surface. In double-wak tanks, the annular space is usuaky fiked with perlite and the external surface of the outer tank is painted for corrosion protection. 

Refrigerated storage of hazardous materials that are stored at or below their atmospheric boiling points mitigates the consequences of containment loss in three ways ... 

Steels lose their ductihty at low temperatures and can become subject to brittle failure. There are specific requirements for metals to be used for refrigerated storage tanks in API 620, Appendices Q and R. 

Consider refrigerated. storage at atmospheric pressure. A BLEXT] cannot occur with the liquid at its atmospheric boiling point (no superheat), although a fire hazard may still exist. The Dow Chemical Company in Texas stores chlorine as a liquid at atmospheric pressure at about —34°C (Englund, ibid. 1991). 

Consider need for high/low temperature alarms for refrigerated storage these should be inspected and tested regularly. Consider need for mitigatory measures (fire, blast, fragment-resistant barricades/screens), electrical and electrostatic safeguards, personal protection, disposal etc. 

Figure 3.4 is an example of a refrigerated storage facility for chlorine. This facility includes a covered spill collection sump which is covered to reduce evaporation to the atmosphere, both by containing the evapo-... 

MarshaU, J., A. Mundt, M. Hult, T. C. McKealvy, P. Myers, and J. Sawyer (1995). The Relative Risk of Pressurized and Refrigerated Storage for Six Chemicals." Process Safety Progress 14, 3 (July), 200-211. 

Receiver system refrigerant volume for shut-down refrigerant storage... 

International Institute of Refrigeration, Storage Lives of Chilled and... 

Some chemicals may need refrigerated storage because of high vapor pressure. If the vapors are flammable, an explosion-proof refrigerator is mandatory, despite its high cost. 

Consider need for high/low temperature alarms for refrigerated storage these should be inspected and tested regularly. 

Lopez-Ayerra, B., Mnrcia, M.A., and Garcia-Carmona, R, Lipid peroxidation and chlorophyll levels in spinach dnring refrigerated storage and after indnstrial processing, Food Chem., 61, 113, 1998. 

Choi, M.H., Kim, G.H., and Lee, H.S., Effects of ascorbic acid retention on juice color and pigment stability in blood orange Citrus sinensis) juice during refrigerated storage, Food Res. Int, 35, 753, 2002. 

BS 2654 (1989) Specification for the manufacture of welded non-refrigerated storage tanks for the petroleum industry. 

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