Rerating rotating equipment optimizes olefins plant performance
Rerating your installed compressors and steam turbines can become a cost-effective, time-saving solution for increasing throughput without having to invest in new equipment.
The operators of mega ethylene plants are under constant pressure to meet enhanced performance specifications and more stringent environmental regulations, while, at the same time, reducing energy costs and improving feedstock flexibility. As ethylene plants have evolved in response to market demands (Fig. 1), technical advances in rotating equipment have boosted operating ranges and performance parameters for the centrifugal compressors and steam turbinesboth are at the heart of ethylene plant operations. When considering the effect of changing market conditions on plant performance, particularly feedstock flexibility, producers must first evaluate changes to gas composition and proce
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