By Ljubisa R. Radovic
"Provides an summary of medical and technological concerns in environmental purposes of carbon fabrics. Emphasizes the flexibility of carbon fabrics in either gasoline- and liquid-phase environmental purposes, together with a dialogue of rising applied sciences. Highlights the ability and power possibilities afforded by means of NMR spectroscopy for realizing the interplay of carbon fabrics with adsorbed molecules."
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Additional resources for Chemistry and Physics of Carbon: Volume 27: A Series of Advances
One solution is to liquefy the gas by compression. yielding liquefied natural gas (LNG),which has a comparable energy density to that of liquid fuels, Table 4. In practice, this is too costly and too dangerous for use in a vehicle fleet . Compression to a lesser degree, without liquefaction, produces an increase i n energy density i n proportion to the applied pressure. However, to obtain an adequate energy density 32 Derbyshire et ai. 5 for use as a vehicle fuel, compression to -25 MPa is required.
The wheel rotates slowly (1 -3 rotations per hour)with about 90% of its face exposed to the incoming air stream. The remainder of the face is in a regeneration sector where a counterflow of hot air desorbs the VOCs for subsequent incineration. The rotary adsorber increases the VOC concentration by a factor of 100, so there is little need for supplemental fuel in the small oxidizer that can beused to destroy the VOCs. This technology has been used for the removal of styrene emissions in the plastics molding industry.
D. Mercury VaporAdsorption Mercury is one of a number of toxic heavy metals that occur i n trace amounts in fossil fuels, particularly coal. and are also present in waste materials. Emissions frommunicipalwasteincineratorscansubstantiallyadd to theenvironmental audit of heavy metals, since domestic and industrial waste often contains many sources of heavy metals. Mercury vapor is particularly difficult to capture from combustion gas streams due to its volatility. Some processes under study for the removal of mercury from flue gas streams are based upon the injection of finely ground activated carbon.