Private company
Petrosix
Oil shale retort in São Mateus do Sul, Brazil
Petrosix is the world's largest surface oil shale pyrolysis retort with an 11 metres (36 ft) diameter vertical shaft kiln, operational since 1992. It is located in São Mateus do Sul, Brazil, and it is owned and operated by the Brazil energy company Petrobras.2 Wikipedia text CC BY-SA 4.0
Last updated Oct 21, 2026.
Overview
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Petrosix is the world's largest surface oil shale pyrolysis retort with an 11 metres (36 ft) diameter vertical shaft kiln, operational since 1992. It is located in São Mateus do Sul, Brazil, and it is owned and operated by the Brazil energy company Petrobras.2
Links
Sources
The numbers on this page point here. Each one links to the record it came from.
- 1WikidataPetrosix on Wikidata
- 2WikipediaPetrosix on Wikipedia