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2025-09-22 16:45:40 Nuno Oliveira: -/-

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`PIEQ/Themes 2025-26.md` ..
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	waste](https://www.google.com/search?q=Production+of+renewable+methanol+from+urban+waste).
	- [New Repsol / Enerkem Ecoplanta in
	Tarragone](https://www.repsol.com/en/sustainability/sustainability-pillars/environment/circular-economy/our-projects/transforming-waste-into-chemicals/index.cshtml).
-
-	## 9. Additional theme to be distributed
+
+
+	## 9. Production of caprolactone
+
+	ε-Caprolactone (ε-CL) is produced industrially through several methods,
+	primarily via the Baeyer-Villiger oxidation of cyclohexanone using
+	peracetic acid or catalytic systems with dioxygen. Alternative methods
+	include the biocatalytic conversion of cyclohexanol using enzymes like
+	Baeyer-Villiger monooxygenases and the direct condensation of
+	6-hydroxyhexanoic acid. Caprolactone is a monomer used in the production
+	of highly specialised polymers. Ring-opening polymerization, for
+	example, gives polycaprolactone. Another polymer is polyglecaprone, used
+	as suture material in surgery ---
+	[(refs)]{https://www.google.com/search?q=%CE%B5-caprolactone+sources}.