DETERIORATION OF REFRACTORY CERAMIC FIBRE LINING IN AN ETHYLENE CRACKING FURNACE- A CASE STUDY

被引：0
|
作者：
Maity, Manabendra [1 ]
Al-Zahrani, Eissa [1 ]
Al-Thomali, Majed [2 ]
Kareem, Mohammed Abdul [2 ]
机构：
[1] Sabic Technol Ctr Jubail, Al Jubail, Saudi Arabia
[2] Eastern Petrochem Co, Al Jubail, Saudi Arabia
来源：
PROCEEDINGS OF THE UNIFIED INTERNATIONAL TECHNICAL CONFERENCE ON REFRACTORIES (UNITECR 2013) | 2014年
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中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Refractory ceramic fibres (RCF) are extensively used for the lining of Ethylene cracking furnaces in the petrochemical industries. Ceramic fibre materials do normally have a tendency of deterioration (de-vitrification, shrinkage, densification, reduced fibre resiliency, reduced thermal shock resistance, etc.) after a continuous exposure to high temperature for a long time. Premature deterioration of ceramic fibre module lining was noticed in a cracking furnace. The problem was unusual and was restricted to only one of the furnaces in the plant. The root-cause of the problem was investigated by evaluating the process condition of the furnace and analyzing the ceramic fibre samples. The results revealed that the presence of alkalis (Na2O & K2O) within furnace contributed faster deterioration of ceramic fibre lining. The detailed observations and results of ceramic fibre post-mortem analysis will be discussed.
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页码：1105 / +
页数：3
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