Sulfur in kukersite shale oil: its distribution in shale oil fractions and the effect of gaseous environment was written by Mozaffari, Sepehr;Baird, Zachariah Steven;Jarvik, Oliver. And the article was included in Journal of Thermal Analysis and Calorimetry in 2022.Safety of 2,5-Dimethylthiophene The following contents are mentioned in the article:
In this article, data on the distribution of sulfur in Estonian kukersite shale oil obtained using pyrolysis at temperatures below 520°C were presented. It was found that the highest concentration of sulfur is present in the fractions boiling between about 150 and 190°C. Also, we studied the effect of N2, N2/steam, CO2, and CO2/steam environments on the distribution of sulfur in pyrolysis products and concentrations of some sulfur compounds in shale oil. The results show that thiophenic compounds comprise most of the sulfur compounds in crude kukersite shale oil. Furthermore, CO2 increased the concentration of some of the identified sulfur compounds in the shale oil as compared to N2. The presence of steam increased the concentration of sulfur compounds in the shale oil as compared to dry sweep gases and significantly increased the sulfur concentration in pyrolysis gas. This was also supported by the investigation of the release of H2S and SO2 gases during the pyrolysis of oil shale in which steam contributes to an increase in the formation of sulfurous gases. The presence of steam not only enhances the release of sulfur compounds from oil shale, but also causes it to occur at lower temperatures This study involved multiple reactions and reactants, such as 2,5-Dimethylthiophene (cas: 638-02-8Safety of 2,5-Dimethylthiophene).
2,5-Dimethylthiophene (cas: 638-02-8) belongs to benzothiophene derivatives. Benzothiophene is relatively a stable molecule. The core structure is a part of various pharmaceutical substances and natural products. Due to its aromaticity, thiophenes do not exhibit the same properties as conventional thioethers.Safety of 2,5-Dimethylthiophene
Referemce:
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem