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Production optimisation in the petrochemical industry by hierarchical multivariate modelling. Concise report
2004 (English)Report (Other academic)
Abstract [sv]

This project demonstrates the advantages of applying hierarchical multivariate modelling in the petrochemical industry in order to increase knowledge of the total process. The models indicate possible ways to optimise the process regarding the use of energy and raw material, which is directly linked to the environmental impact of the process. The refinery of Nynäs Refining AB (Gothenburg, Sweden) has acted as a demonstration site in this project. The models developed for the demonstration site resulted in: * Detection of an unknown process disturbance and suggestions of possible causes. * Indications on how to increase the yield in combination with energy savings. * The possibility to predict product quality from on-line process measurements, making the results available at a higher frequency than customary laboratory analysis. * Quantification of the gradually lowered efficiency of heat transfer in the furnace and increased fuel consumption as an effect of soot build-up on the furnace coils. * Increased knowledge of the relation between production rate and the efficiency of the heat exchangers. The project is also reported, with a higher level of detail, in the IVL report B1586-B

Abstract [en]

This project demonstrates the advantages of applying hierarchical multivariate modelling in the petrochemical industry in order to increase knowledge of the total process. The models indicate possible ways to optimise the process regarding the use of energy and raw material, which is directly linked to the environmental impact of the process. The refinery of Nynäs Refining AB (Gothenburg, Sweden) has acted as a demonstration site in this project. The models developed for the demonstration site resulted in: * Detection of an unknown process disturbance and suggestions of possible causes. * Indications on how to increase the yield in combination with energy savings. * The possibility to predict product quality from on-line process measurements, making the results available at a higher frequency than customary laboratory analysis. * Quantification of the gradually lowered efficiency of heat transfer in the furnace and increased fuel consumption as an effect of soot build-up on the furnace coils. * Increased knowledge of the relation between production rate and the efficiency of the heat exchangers. The project is also reported, with a higher level of detail, in the IVL report B1586-B

Place, publisher, year, edition, pages
IVL Svenska Miljöinstitutet, 2004.
Series
B report ; B1586A
Keywords [sv]
Petrochemistry, petrochemical industry, crude oil distillation, process optimisation, energy conservation, hierarchical multivariate modelling, MVA, soft sensor
Identifiers
URN: urn:nbn:se:ivl:diva-1795OAI: oai:DiVA.org:ivl-1795DiVA, id: diva2:1551236
Available from: 2021-05-05 Created: 2021-05-05Bibliographically approved

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CiteExportLink to record
Permanent link

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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
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  • text
  • asciidoc
  • rtf