Abstract The paper describes the physicochemical characterization and catalytic testing of MFI zeolites with crystal sizes ranging from 0.15 to 6 μm supplied by different manufacturers. properties were examined atomic absorption spectrometry, X-ray fluorescence analysis, scanning electron microscopy, low-temperature nitrogen adsorption, ammonia temperature-programmed desorption. then added a cr...

A total of nine immature–low maturity oil shale samples from Fushun and Maoming, the main producing areas in China, three mature Jiyang Depression, were selected for use hydrocarbon generation thermal simulation experiments an open system a closed system. The parallel first–order reaction kinetic model overall nth–order used to calibrate pyrolysis parameters samples. This comparative study reve...

phytoremediation is an emerging environmental-friendly technology that can be a promising solution to remediate oil-polluted soils. the impact of high amount of hydrocarbons on growth characteristics of burningbushand common flax was evaluated in this survey. the influence of organic fertilizers was also assessed on growth of plant species in oil-contaminated soil. soil samples in which plants ...

Recent attention regarding the impacts of oil and gas development and exploitation has focused on the unintentional release of hydrocarbons into the environment, whilst the potential negative effects of other possible avenues of environmental contamination are less well documented. In the hydrocarbon-rich and ecologically sensitive Mackenzie Delta region (NT, Canada), saline wastes associated w...

A dynamic multimedia fugacity model was used to evaluate the partitioning and fate of petroleum hydrocarbon fractions and aromatic indicator compounds within the soil: oil matrix of three biopiles. Each biopile was characterised by four compartments: air, water, soil solids and non-aqueous phase liquid (NAPL). Equilibrium partitioning in biopile A and B suggested that most fractions resided in ...

The presence of high affinity ligands for the aryl hydrocarbon receptor (AhR) in cell culture medium has generally been overlooked. Such compounds may confound mechanistic studies of the important AhR regulatory network. Numerous reports have described that light exposed cell culture medium induces AhR-dependent activity. In this study, we aimed at identifying the causative substance(s). A thre...