Mineral reactions and pyrolysis of Israeli oil shale

L. Heller-Kallai*, G. Esterson, Z. Aizenshtat, M. Pismen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

The mineral reactions of Israeli oil shale fed to the GENESIS (Generation of Energy from Shale of Israel) split-stage fluidized-bed reactor have been studied by infrared. X-ray and chemical means. Organically bonded sulphur released during pyrolysis reacts with oxygen from the fluidizing air and with CaO resulting from decomposition of calcite to form CaSO4, mostly in a surface layer. At pyrolysis and coke-oxidation temperatures near 600°C, kaolinite reacts with calcite to form amorphous modified metakaolinite. At organic gas combustion temperatures near 1000°C, the amorphous phase in overhead fines reacts with additional calcite and quartz to yield gehlenite and larnite.

Original languageEnglish
Pages (from-to)375-389
Number of pages15
JournalJournal of Analytical and Applied Pyrolysis
Volume6
Issue number4
DOIs
StatePublished - Sep 1984

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