Abstract
Lab tests have demonstrated the ability to separate styrene from ABS and SAN plastics wastes by cooling the waste until the styrene begins to crystallize. The same process that recovers styrene from these wastes can be used to purify styrene, in place of conventional distillation columns, with substantial reductions in energy consumption. The impact on plant energy balances for a typical styrene plant will be presented, along with the results from lab testing.
Heist, J. A.; Wrobel, P. J. (1992). Styrene Purification and Recovery Using Freeze Crystallization. Energy Systems Laboratory. Available electronically from
https : / /hdl .handle .net /1969 .1 /148989.