Spatial statistical methods including Cokriging interpolation, Morans I analysis, and geographically weighted regression (GWR) were used for studying the spatial characteristics of polycyclic aromatic hydrocarbon (PAH) accumulation in urban, suburban, and rural soils of Beijing. The concentrations of PAHs decreased spatially as the level of urbanization decreased. Generally, PAHs in soil showed...

The primary oil processing product is a mixture of different hydrocarbons. One the hard-to-process petroleum products fuel oil. This paper considers method to derive clear (light) fractions by catalytic on zeolite-containing catalyst at 1 atm under technological conditions aerosol nanocatalysis. prospect viscous residue ‒ has been analyzed and estimated. process carried out dispersing catalytic...

Efficient direct valorization of methane to value-added chemicals and materials remains an unsolved challenge for modern chemistry science. In this work, we explored non-oxidative conversion hydrogen, hydrocarbons, valuable zeolite-templated carbon materials. First, using a set spectroscopy microscopy characterization tools, investigated how the reaction conditions influence process formation i...

SUMMARY Cells grown in culture were exposed to benzo[a}pyrene and related polycyclic aro matic hydrocarbons dissolved in serum, following which procedure they were irradi ated with long-wave ultraviolet light. The sequence of biological responses resulting from this photodynamic effect on the cells was dependent upon the total energy ab sorbed by the hydrocarbons incorporated in the cells. The ...

The Fischer-Tropsch synthesis (FTS) has been recognized as a heterogeneous surface-catalyzed polymerization process. During this process, CHx monomers formed via the hydrogenation of adsorbed CO on transition metals produce hydrocarbons and oxygenates with a broad range of chain lengths and functional groups. A series of Fe/Cu Fischer-Tropsch synthesis catalysts incorporated with a calcium prom...