Rhodococcus sp. strain DK17 was isolated from soil and analyzed for the ability to grow on o-xylene as the sole carbon and energy source. Although DK17 cannot grow on m- and p-xylene, it is capable of growth on benzene, phenol, toluene, ethylbenzene, isopropylbenzene, and other alkylbenzene isomers. One UV-generated mutant strain, DK176, simultaneously lost the ability to grow on o-xylene, ethy...

Abstract Alkylbenzenes are major aromatic constituents of real transportation fuels and important surrogate components. In this study, 4 kinds C8H10 8 C9H12 alkylbenzenes were tested in a laminar diffusion flame to investigate the influence chemical structure on sooting tendency. The laser induced incandescence (LII) technique was applied obtain 2D distribution soot volume fraction for calculat...

Linear alkylbenzene sulfonates (LAS) can be found in high concentrations in sewage sludge and, hence, may enter the soil compartment as a result of sludge application. Here, LAS may pose a risk for soil-dwelling organisms. In the present probabilistic risk assessment, statistical extrapolation has been used to assess the risk of LAS to soil ecosystems. By use of a log-normal distribution model,...

The low flow characteristics of heavy oil have brought many challenges to its exploitation. Looking for a cost-effective crude improver reduce the viscosity is currently most important challenge. Small-molecule improvers meet above requirements and become an ideal target oilfield production. In this article, three kinds barium salts alkylbenzene sulfonates with different lengths alkyl chains we...