A nonequilibrium stage model of multicomponent separation processes part IV: A novel approach to packed column design

AIChE Journal ◽  
1987 ◽  
Vol 33 (2) ◽  
pp. 325-327 ◽  
Author(s):  
M. S. Sivasubramanian ◽  
R. Taylor ◽  
R. Krishnamurthy
Author(s):  
Artur J. Jaworski ◽  
Tomasz Dyakowski ◽  
Graham A. Davies

Abstract In this paper we present a novel approach to designing sensors and instrumentation for monitoring and controlling multiphase processes. Our concept is based on using distributed sensor arrays, embedded within the vital plant components and thus forming smart structures. Distributed information obtained from such devices, coupled with appropriate data processing, could improve our understanding of the nature of multiphase processes and hence improve plant operation. We discuss the requirements for such sensors and, in the experimental part of this paper, present a short case study, conducted at UMIST Pilot Plant facility, to highlight the benefits of using smart sensing techniques in a process environment. We hope that this paper will open a general discussion on sensing multiphase flows.


2003 ◽  
Vol 125 (4) ◽  
pp. 258-265 ◽  
Author(s):  
Artur J. Jaworski ◽  
Tomasz Dyakowski ◽  
Graham A. Davies

This paper presents a novel approach to designing sensors and instrumentation for monitoring and controlling multiphase processes. It is based on the use of distributed sensor arrays, embedded within vital plant components, which provides an enhanced method of monitoring multiphase phenomena in both the spatial and temporal sense. This can be of particular importance for a more efficient extraction of fossil fuels and improved energy management in manufacturing sector. Two case studies are provided. First example shows the use of the concept in the separation processes in oil and gas extraction sector, while the second relates to nylon polymerization in the chemical industry.


1999 ◽  
Vol 38 (8) ◽  
pp. 2973-2978 ◽  
Author(s):  
Fengrong Chen ◽  
Rongqi Zhou ◽  
Zhanting Duan ◽  
Yumei Liu

2015 ◽  
Vol 17 (1) ◽  
pp. 48-54
Author(s):  
Ahmad Rahbar-Kelishami ◽  
Hossein Bahmanyar ◽  
Zahra Hajamini

Abstract The calculation of column’s height plays an important role in packed columns precise design. This research is based on experimentally measurement of mass transfer coefficients in different heights of packed column to predict its height. The objective of presented work is to introduce a novel conceptual method to predict column height via new correlation for mass transfer coefficient. As the mass transfer coefficient is decreased with increase of column height, the HTU’s are not constant figures along the column so this new approach is called increasing HTU’s. The results of the proposed idea were compared with other correlations and the conventional method i.e. constant HTU’s. Since the results are in very good agreement with experimental data comparing to conventional method, it seems this approach can be a turning point in design of all differential columns like packed columns. Making use of this method is suggested for design of differential columns.


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