A hybrid approach for estimating fugitive emission rates in process development and design under incomplete knowledge

Rex T.L. Ng, Mimi H. Hassim*, Markku Hurme

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

3 Citations (Scopus)

Abstract

Fugitive emissions are one of the most notable contributors to atmospheric releases in chemical process industries affecting not only the economy but also both the environment and workers’ health. In order to reduce fugitive emissions released in this process, the assessment of fugitive emissions should be conducted at the early stage of chemical process design when the cost of making changes is the lowest. This is however impeded by the limited knowledge on the leak sources, since the process is still under design. The paper presents a hybrid approach for estimating fugitive emission rates early in the design phase. The method combines a pre-calculated emission database of standard process module based approach with estimation by using generic piping and instrumentation diagrams if a suitable module is not available from the database. Also, both working and breathing emissions are included in the assessment. The emissions’ assessment from a case study of hydrodealkylation distillation and storage systems is presented to demonstrate the proposed approach.

Original languageEnglish
Pages (from-to)365-373
Number of pages9
JournalPROCESS SAFETY AND ENVIRONMENTAL PROTECTION
Volume109
DOIs
Publication statusPublished - 1 Jul 2017
MoE publication typeA1 Journal article-refereed

Keywords

  • Fugitive emission
  • Greenhouse gases
  • Health risk
  • Process design
  • Process development
  • Volatile organic compounds

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