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Siemens to supply equipment for propylene plants

By OGJ editors
HOUSTON, June 28 -- Datang International Power Generation Co. Ltd. has let a €20 million contract to Siemens Power Generation to supply core equipment for the world's first methanol-to-propylene (MTP) plant to be built in China.

In the MTP process, natural gas or coal is used as feedstock to produce methanol, which is then converted to propylene.

China's MTP project comprises two propylene plants that will use Lurgi AG's plastics-from-coal technology. The plants, due on stream in late 2008 and early 2009, will each produce about 500,000 tonnes/year of polypropylene from coal (OGJ Online, Dec. 4, 2006, Newsletter).

The Siemens contract includes the supply of a synthesis gas compressor, which will compress the synthesis gas to 86 bar from 31.7 bar, and a propylene compressor that will compress the propylene to 17.6 bar from 1.05 bar.

Both compressors are single-shaft horizontally split compressors, driven by a SST-600 condensing steam turbine with an output of over 40 Mw. They are scheduled for delivery in the spring of 2008.


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