Energy saving method by converting the difference of steam pressure to otive power with steam turbine instead of using pressure reducingvalve promotes high efficiency,and introduction of such method has beenincrease in recent years.Besides building a new plant from the beginning,it is a key to decide for what application the collected motive power at the existing plant is utilized.How to use the steam turbine as auxiliary motive power to compressors,which has high energy consumption rate,in general plant are hereunder descrived.
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