PMID- 35919599 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220805 IS - 2046-2069 (Electronic) IS - 2046-2069 (Linking) VI - 12 IP - 31 DP - 2022 Jul 6 TI - Study of the effect of in situ minerals on the pyrolysis of oil shale in Fushun, China. PG - 20239-20250 LID - 10.1039/d2ra02822k [doi] AB - Herein, the effect of Fushun oil shale minerals on its kerogen has been investigated. The samples were obtained under non-isothermal conditions at different final temperatures. Scanning electron microscope (SEM) analysis revealed that the silicates were layered and the carbonates were tightly bound to each other. The combination of silicates and carbonates led to close combination of minerals and organic matter and the organic matter was contained in the minerals. The Brunner-Emmet-Teller (BET) experiments conclude that during the non-isothermal pyrolysis process, the specific surface area increased, and then, decreased, which proves the adsorption effect of silicates on oil shale pyrolysis products and the adsorption effect of carbonates was weak. The activation energy of four samples was calculated via Flynn-Wall-Ozawa (FWO) and Friedman kinetic analysis under different heating rates in a non-isothermal process, wherein the average activation energy of the sample containing silicate was 177.60 kJ mol(-1) at minimum while that of carbonate was 250.45 kJ mol(-1) at maximum, which proves that the catalytic promotion effect of silicate was greater than the inhibition effect of carbonate. The pyrolysis products obtained by Flash pyrolysis-gas chromatography-mass spectrometry (Py-GC/MS) under isothermal pyrolysis conditions were primarily composed of aliphatic hydrocarbon structures, which had different degrees of impact on the production of heteroatoms. This work provides a reliable theoretical basis for future studies on the influence of minerals on pyrolysis of organic matter in oil shale. CI - This journal is (c) The Royal Society of Chemistry. FAU - Xinmin, Wang AU - Xinmin W AD - Engineering Research Centre of Oil Shale Comprehensive Utilization, Ministry of Education, Northeast Electric Power University Jilin City Jilin 132012 China rlx888@126.com. FAU - Qing, Wang AU - Qing W AUID- ORCID: 0000-0002-9840-6492 AD - Engineering Research Centre of Oil Shale Comprehensive Utilization, Ministry of Education, Northeast Electric Power University Jilin City Jilin 132012 China rlx888@126.com. FAU - Chunlei, Wu AU - Chunlei W AD - Engineering Research Centre of Oil Shale Comprehensive Utilization, Ministry of Education, Northeast Electric Power University Jilin City Jilin 132012 China rlx888@126.com. LA - eng PT - Journal Article DEP - 20220713 PL - England TA - RSC Adv JT - RSC advances JID - 101581657 PMC - PMC9277521 COIS- There are no conflicts to declare. EDAT- 2022/08/04 06:00 MHDA- 2022/08/04 06:01 PMCR- 2022/07/13 CRDT- 2022/08/03 02:10 PHST- 2022/05/04 00:00 [received] PHST- 2022/07/04 00:00 [accepted] PHST- 2022/08/03 02:10 [entrez] PHST- 2022/08/04 06:00 [pubmed] PHST- 2022/08/04 06:01 [medline] PHST- 2022/07/13 00:00 [pmc-release] AID - d2ra02822k [pii] AID - 10.1039/d2ra02822k [doi] PST - epublish SO - RSC Adv. 2022 Jul 13;12(31):20239-20250. doi: 10.1039/d2ra02822k. eCollection 2022 Jul 6.