Side-reactions in Chemical Heat Pump System with Paraldehyde Depolymerization

Takayuki Watanabe, Haruo Kawasaki

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


The paraldehyde chemical heat pump generates cold thermal energy with depolymerization of paraldehyde (2,4,6-trimethyl-trioxane). This study investigates the by-products in the heat pump system. Crotonaldehyde (2-butenal) and the polymer of crotonaldehyde are main by-products. The proposed heat pump system has the solution cycle for the by-product. The cooling rate and the coefficient of performance of the proposed system decreases with a decrease in the amount of cyclic solution.

Original languageEnglish
Pages (from-to)672-675
Number of pages4
Journalkagaku kogaku ronbunshu
Issue number4
Publication statusPublished - 1999
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General Chemistry
  • General Chemical Engineering


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