نتایج جستجو برای: c2 hydrocarbons
تعداد نتایج: 47007 فیلتر نتایج به سال:
Natural gas processing is a major industry in Alberta, Canada, and a significant source of fugitive emissions of both methane and volatile organic hydrocarbon (VOCs). This project investigated fugitive emissions at natural gas processing plants in Alberta using two complementary optical measurement methods. At five gas plants, the fugitive emissions of methane and hydrocarbons ethane and larger...
Electroreduction of carbon dioxide into higher-energy liquid fuels and chemicals is a promising but challenging renewable energy conversion technology. Among the electrocatalysts screened so far for carbon dioxide reduction, which includes metals, alloys, organometallics, layered materials and carbon nanostructures, only copper exhibits selectivity towards formation of hydrocarbons and multi-ca...
The goal of this study was to monitor emission of chemicals at a factory where plastics products were fabricated by a new robotic (impregnated tape winding) production process. Stationary and personal air measurements were taken to determine which chemicals were released and at what concentrations. Principal component analyses (PCA) and linear regression were used to determine the emission sour...
Direct catalytic conversion of ethanol to hydrocarbon blend-stock can increase biofuels use in current vehicles beyond the ethanol blend-wall of 10-15%. Literature reports describe quantitative conversion of ethanol over zeolite catalysts but high C2 hydrocarbon formation renders this approach unsuitable for commercialization. Furthermore, the prior mechanistic studies suggested that ethanol co...
A combined experimental and kinetic modeling study is carried out to explore the influences of added acetylene, ethylene, propylene, propyne on reaction schemes benzene pyrolysis. Pyrolysis with without presence C2- or C3- unsaturated hydrocarbons (HCs) conducted in a single pulse shock tube coupled gas chromatography-mass spectrometry technique. minimum 30 species detected each system, their m...
The aldo-keto reductase (AKR) superfamily of enzymes is critical for the detoxification of drugs and toxins in the human body; these enzymes are involved not only in the development of drug resistance in cancer cells but also in the metabolism of polycyclic aromatic hydrocarbons. Here, we demonstrated that AKR1C1/C2 increased the metabolism of ethyl-3,4-dihydroxybenzoate (EDHB) in esophageal sq...
Alkali metal K- and/or Na-promoted FeCoCuAl catalysts were synthesized by precipitation and impregnation, their physicochemical catalytic performance for CO2 hydrogenation to light hydrocarbons was also investigated in the present work. The results indicate that Na K introduction leads formation of active phase metallic Fe Fe-Co crystals order < K-Na. simultaneous causes a synergistic effect...
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