The process developed by Technical Process & Engineering Inc. (TPEI), Lehighton, Pennsylvania, captures residual pentane gas used as a foaming agent in PS products. The pentane can be reused as a gas ...

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n-PENTANE in a chemically correct mixture with air was oxidized in a reactor formed by the annulus between concentric tubes of ‘Vycor’ (96 per cent silica). The inside diameter of the outer ...