Page 70 - Plastics News May 2024

PRODUCT NEWS

Climate change impact of producing
colored PP via the STRAP process
compared with virgin PP. Courtesy of
Green Chemistry.

PP recovery. cessing a capacity of 5,292 tons of PP 24.7 million USD, with an annual oper-
colored annually, results in an MSP of ating cost of 1.87 million USD. On the
Economic Feasibility 1.42 USD/kg. This price is comparable other hand, sensitivity analysis shows

Finally, scientists developed a techno- to the average market values of virgin the impact of economies of scale
economic and sensitivity analysis of PP and the cost of post-consumer PP across various processing capacities.
the STRAP process for recovering PP (0.94-2.52 USD/kg). Moreover, the The results reveal that beyond an an-
colored. The first indicates that pro- total capital investment amounted to nual capacity of 7,000 tons, the MSP

of the polypropylene (PP) produced via the STRAP
process is approximately half the maximum market
value of virgin resin and the price of post-consum-
er PP (ranging from 0.94 to 2.52 USD/kg). These
findings underscore the economic viability of the
STRAP process without color removal. It also im-
plies that this technology could scale up to reclaim
PP from discarded face masks. Thus, enabling both
environmental and economic benefits.
Source – Plastics Engineering

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