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Environment

Air Products enriches air

July 24, 2006 | A version of this story appeared in Volume 84, Issue 30
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Credit: Tian Bian/ColorChina Photo/Newscom
A ride on the train to Tibet is easier in oxygen-enriched compartments.
Credit: Tian Bian/ColorChina Photo/Newscom
A ride on the train to Tibet is easier in oxygen-enriched compartments.

The high-altitude railway linking Golmud in China's Qinghai province to Lhasa in Tibet opened to the public earlier this month with oxygen-enriched passenger compartments. Air Products & Chemicals supplied its Prism membranes for use in generators that separate oxygen to enrich the thin air and prevent breathing difficulties. The Qinghai-Tibet Railway, intended to open China's remote western region, takes travelers on a 700-mile trip at altitudes that exceed 13,000 feet above sea level for much of the journey.

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