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High-pressure polyethylene: Reemergence as a specialty chemical or not?

04.01.2013  |  Farrell, L. ,  Nexant, White Plains, New YorkVirosco, J. ,  Nexant, White Plains, New York

The analysis results indicate that, while investment capital for new plants favors LLDPE, plant profitability—which is a function of product slate (revenue) and cost—is, in many cases, higher for LDPE plants.

Keywords: [polyethylene] [polymers] [LDPE] [LLDPE] [high-pressure]

Just over 30 years ago, the first third-party commercial license was signed for a low-pressure gas-phase polyethylene (PE) process. This development ushered in the age of the linear-low-density polyethylene (LLDPE). Benefits of the LLDPE process were stated as lower capital investment and much lower energy costs. At the time, it appeared that the conventional high-pressure tubular and autoclave processes for low-density polyethylene (LDPE) had been eclipsed by new technology. Result: Investment in high-pressure PE plants came to a halt.

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