نتایج جستجو برای: light hydrocarbons
تعداد نتایج: 422794 فیلتر نتایج به سال:
Nitrogenase is an ATP-requiring enzyme capable of carrying out multielectron reductions of inert molecules. A purified remodeled nitrogenase containing two amino acid substitutions near the site of its FeMo cofactor was recently described as having the capacity to reduce carbon dioxide (CO2) to methane (CH4). Here, we developed the anoxygenic phototroph, Rhodopseudomonas palustris, as a biocata...
The cyanobacterium Anacystis nidulans is bleached when subjected to both light and 0 2 to gether with suitable (pre)treatment of the cells such as incubation at high (^ 4 8 °C) or low ( S 17 °C) temperatures, or in presence of metabolic inhibitors, or of substances forming com plexes with divalent cations. Concomitantly degradation of the intracellular membranes is ob served (G. Schmetterer,...
Complexity and specifics of elimination of emergency spills of light hydrocarbons in offshore fields
Ultraviolet A and Ultraviolet C Light-Induced Reduction of Surface Hydrocarbons on Titanium Implants
Highly siliceous ZSM-5 nanocatalysts can dehydrate methanol to a wide range of hydrocarbons. In this study, the development of hierarchical H-ZSM-5 nanocatalysts (Si/Al=200) were reported for the methanol-toolefins (MTO) reaction. The nanocatalysts were prepared through a hydrothermal technique and treated by NaOH desilication. The parent and desilicated nanocatalysts were characterized using F...
The SiO2 supported cobalt-iron nano catalysts were prepared by the sol-gel method. This research investigated the effects of (Co/Fe) wt.%, different Co/Fe ratio at different temperature and loading of KCl wt.% for Fisher-Tropsch synthesis (FTS). The results were showed that the catalyst containing 50 wt.% (Co/Fe)/SiO2 (Co/Fe ratio is 70/30) which promoted with 0.6 wt.% KCl is an optimal nano ca...
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