Document Detail


Radiotracer investigations in aniline production reactors.
MedLine Citation:
PMID:  12201137     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
Radiotracer investigations were carried out to measure the residence time distribution (RTD) of the heat transfer medium (HTM) in two identical aniline production reactors. One was operating abnormally while the other functioned normally. Investigations were carried out to identify the cause(s) of inadequate heat transfer from the tube-side to the shell-side of the abnormally operating reactor. For measuring the RTD of the HTM in the shell-side of the reactor. 82Br as paradibromobenzene was used as a tracer. The analysis of the measured RTD data revealed that about 60% of the shell-side volume of the abnormally operating reactor was fouled/dead, this being the root cause of the inadequate heat transfer. The modelling of RTD data indicated undesired parallel flow streams in the shell-side of the abnormal reactor. Shutdown of the abnormally operating reactor was instituted to allow remediation, fouling subsequently being visibly confirmed. The planned shutdown resulted in reduction in downtime, with substantial economic benefit to the industry.
Authors:
H J Pant; V N Yelgoankar
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine     Volume:  57     ISSN:  0969-8043     ISO Abbreviation:  Appl Radiat Isot     Publication Date:  2002 Sep 
Date Detail:
Created Date:  2002-08-30     Completed Date:  2002-10-02     Revised Date:  2003-11-03    
Medline Journal Info:
Nlm Unique ID:  9306253     Medline TA:  Appl Radiat Isot     Country:  England    
Other Details:
Languages:  eng     Pagination:  319-25     Citation Subset:  -    
Affiliation:
Isotope Applications Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India. hjpant@apsara.barc.ernet.in
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