3739.     ---------------.  [WORLD PETROLEUM.]  Centrifugal Compressors Completed for Carthage Hydrocol Plant.  Vol. 20, 1949, pp. 58-59.

        Two mammoth centrifugal compressors for the Hydrocol plant have been built by Clark Bros., Olean, N. Y.  Each of the compressor units consists of 3 cases to be installed in tandem for drive through by a single steam turbine.  Designed capacity is to compress 110,000 cu. ft. of air per minute to 100 p.s.i.g.  The 1^st 2 cases operate in parallel, the 3d acting as a 2d stage.  Power requirement is 23,000 b. hp.  A total of 24 units with an installed hp. of over 80,000 will be used to compress 6 different gases involved in the Fischer-Tropsch synthesis.  Some special nonferrous metals have been adopted in order to guard against O₂ and to provide adequate intercooling between the various compressor cases.  Internal parts of the O₂ compressors are made of bronze alloy and are water-cooled, a special bronze diaphragm being used to obtain a high rate of cooling.  2 photographs given.

        WORTHINGTON, H.  See abs. 607.