MATERIALS SELECTION FOR FCCU CYCLONES

机译：FCCU旋风分离器的材料选择

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The materials selection for FCCU Regenerator and Reactor (or Disengager) cyclones has always been a complexdecision, and recent trends have led to even more factors to be considered. Often, the selection is a 'least evils' decision.There are multiple materials degradation mechanisms, which vary depending on the specific unit conditions, and no onematerial completely resists them all. Operating temperatures have been increasing in recent years, which has added to thematerials problems. In addition, other trends, including the use of partial combustion, close-coupling of cyclones, etc., haveincreased the complexity of the FCC process. This paper discusses the applicable materials degradation mechanisms,highlighting the operating conditions under which they become critical and the susceptible materials. The recommendedmaterials and some comments on life expectancy for common plant conditions are then given.

机译：FCCU再生器和反应器（或分离器）旋风分离器的材料选择一直是一个复杂的决定，而最近的趋势已导致需要考虑更多因素。通常情况下，选择是“最不道德的决定”。有多种材料降解机制，具体取决于具体的单元条件，并且没有一种材料可以完全抵抗所有这些。近年来，工作温度一直在升高，这加剧了材料问题。此外，其他趋势，包括使用部分燃烧，旋风分离器的紧密耦合等，也增加了FCC工艺的复杂性。本文讨论了适用的材料降解机理，重点介绍了在这些条件下材料变得关键和易受影响的材料的工作条件。然后给出了推荐的材料以及一些关于普通植物条件下预期寿命的评论。

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《NACE annual conference & exposition》|2003年|1-18|共18页
会议地点 San Diego, CA(US)
作者
C.A. Shargay; A.R. Smith;
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Fluor Inc.One Fluor Daniel DriveAliso Viejo CA;

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MATERIALS SELECTION FOR FCCU CYCLONES

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