The complex produced its first on-specification ethylene and propylene in late January this year.

FORBES: Magazine Article

With an e-cigarette your nicotine is delivered with propylene glycol and vegetable glycerin rather than tar and ash.

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In 2008 the top ten producers accounted for only 42% of propylene capacity and 46% of ethylene capacity.

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Gasoline or diesel fuel are two flavors, but there are others that might sound unfamiliar - ethylene and propylene and xylene.

NPR: Energy Costs Drive Up Prices of Nearly Everything

The vaporized nicotine is inhaled with flavorings and substances such as propylene glycol, all completely harmless based on years of safe use.

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The oil states are moving into propylene too, and downstream as well.

ECONOMIST: Plastics and petrochemicals

In the first round Symyx researchers mixed these solutions with propylene gas to find out which ones catalyzed the most plastic at 167 degrees.

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Mr. CHARLES DREVNA (National Petrochemical and Refiners Association): For lack of a better term, we make plastic pellets, and those plastic pellets, whether they're ethylene derived or propylene derived or whatever, are transformed into products that we use every day.

NPR: Energy Costs Drive Up Prices of Nearly Everything