Quantifying Implications of Deposit Aging from Crude Refinery Preheat Train Data

被引:7
|
作者
Ishiyama, Edward Masato [1 ]
Falkeman, Erik [2 ]
Wilson, D. Ian [3 ]
Pugh, Simon John [1 ]
机构
[1] Heat Transfer Res Inc, POB 1390, Navasota, TX 77868 USA
[2] Preem Raffinaderi AB, Gothenburg, Sweden
[3] Univ Cambridge, Dept Chem Engn & Biotechnol, Cambridge, England
关键词
SUBJECT; IMPACT;
D O I
10.1080/01457632.2018.1522072
中图分类号
O414.1 [热力学];
学科分类号
摘要
Heat exchanger fouling has been studied for some time in the petroleum industry. As understanding of fouling dynamics and mitigation methods improves, refinery fouling mitigation strategies are changing. The implications of deposit aging in refinery units have not been addressed in detail: aging refers to where the deposit undergoes physical and chemical conversion over time. In the 2009 Heat Exchanger Fouling and Cleaning conference, Wilson et al. [Ageing: Looking back and looking forward] presented a simple framework illustrating how deposit aging impacts heat exchanger thermal and hydraulic performance. This paper presents insights into deposit aging gained from analysis of refinery monitoring data. Two case studies are presented: (i) one from the Preem refinery in Sweden where stream temperature, flow and gauge pressure measurements indicated a higher deposit thermal conductivity in exchangers located in the hotter section of the preheat train. (ii) US refinery stream temperature, flow and plant cleaning log data, showing an increased resistance to cleaning when deposits are exposed to high temperature for a prolonged period. The use of deposit aging analysis to improve exchanger operation is discussed.
引用
收藏
页码:115 / 126
页数:12
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