Parametric studies of electrolytic decomposition of hydroxylammonium nitrate (HAN) energetic ionic liquid in microreactor using image processing technique

Wai Siong Chai, Kean How Cheah, Kai Seng Koh, Jitkai Chin, Tengku Farah Wahida K. Chik

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

This paper presents the study of electrolytic decomposition of hydroxylammonium nitrate (HAN) ionic liquid in a transparent microreactor. The decomposition phenomena was captured using a high speed camera system. The captured images were post processed to study the effect of number of electrodes, HAN ionic liquid flowrate and applied voltage toward the overall reaction rate. Using of 3 pairs of copper electrodes, the ignition delay and the time taken to achieve steady state reaction were shortened to 8 ms and 120 ms, respectively. The associated overall reaction rate is 225% higher than that of using 1 pair of copper electrodes. Comparing to applied voltage, the flowrate of HAN ionic liquid is a more dominant factor as sufficient residence time is required for complete decomposition of HAN ionic liquid. The findings from the parametric study can be used to control the overall reaction rate for various microscale energetic applications.

Original languageEnglish
Pages (from-to)19-27
Number of pages9
JournalChemical Engineering Journal
Volume296
Early online date25 Mar 2016
DOIs
Publication statusPublished - 15 Jul 2016
Externally publishedYes

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Ionic Liquids
Ionic liquids
image processing
Nitrates
Image processing
energetics
reaction rate
decomposition
nitrate
Reaction rates
Decomposition
electrode
Electrodes
Copper
copper
High speed cameras
Electric potential
Ignition
residence time
ionic liquid

Cite this

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abstract = "This paper presents the study of electrolytic decomposition of hydroxylammonium nitrate (HAN) ionic liquid in a transparent microreactor. The decomposition phenomena was captured using a high speed camera system. The captured images were post processed to study the effect of number of electrodes, HAN ionic liquid flowrate and applied voltage toward the overall reaction rate. Using of 3 pairs of copper electrodes, the ignition delay and the time taken to achieve steady state reaction were shortened to 8 ms and 120 ms, respectively. The associated overall reaction rate is 225{\%} higher than that of using 1 pair of copper electrodes. Comparing to applied voltage, the flowrate of HAN ionic liquid is a more dominant factor as sufficient residence time is required for complete decomposition of HAN ionic liquid. The findings from the parametric study can be used to control the overall reaction rate for various microscale energetic applications.",
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Parametric studies of electrolytic decomposition of hydroxylammonium nitrate (HAN) energetic ionic liquid in microreactor using image processing technique. / Chai, Wai Siong; Cheah, Kean How; Koh, Kai Seng; Chin, Jitkai; Chik, Tengku Farah Wahida K.

In: Chemical Engineering Journal, Vol. 296, 15.07.2016, p. 19-27.

Research output: Contribution to journalArticle

TY - JOUR

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AU - Chai, Wai Siong

AU - Cheah, Kean How

AU - Koh, Kai Seng

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AU - Chik, Tengku Farah Wahida K.

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AB - This paper presents the study of electrolytic decomposition of hydroxylammonium nitrate (HAN) ionic liquid in a transparent microreactor. The decomposition phenomena was captured using a high speed camera system. The captured images were post processed to study the effect of number of electrodes, HAN ionic liquid flowrate and applied voltage toward the overall reaction rate. Using of 3 pairs of copper electrodes, the ignition delay and the time taken to achieve steady state reaction were shortened to 8 ms and 120 ms, respectively. The associated overall reaction rate is 225% higher than that of using 1 pair of copper electrodes. Comparing to applied voltage, the flowrate of HAN ionic liquid is a more dominant factor as sufficient residence time is required for complete decomposition of HAN ionic liquid. The findings from the parametric study can be used to control the overall reaction rate for various microscale energetic applications.

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