ethene


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ethene

see ETHYLENE.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
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TANA5, undergoing bioremediation to uncultured Methanosarcina ethene with a diverse st.
(501) Southlake requires quarterly testing until abandonment of all gas wells at a pad site and provides that the testing parameters will be determined by the City as part of a "continuous water testing plan" that will, "at a minimum," include: "volatile organic compounds, total petroleum hydrocarbons, semi-volatile organic compounds, total dissolved solids, total suspended solids, methane, ethane, ethene, sulfate, glycols, chloride, hexavalent chromium, sodium, barium, strontium, and turbidity." (502) All costs related to water sampling and monitoring equipment operation must be borne by the operator of the well.
Smith, "Conical intersection pathways in the photocycloaddition of ethene and benzene: a CASSCF study with MMVB dynamics," Journal of the American Chemical Society, vol.
Yang and McCarty (2000) reported that high concentrations of PCE, cis-DCE, and ethene were inhibitory to methanogens, and high concentrations of PCE were inhibitory to homoacetogens [32].
The investigation shows that according to the selected criteria, namely, by the price, construction term, longevity, C[O.sub.2] emission, SO2 emission, phosphate emission, C2H4 ethene emission, running costs and utilization input of energy, the best alternative is a blockhouse, made mostly of wood-based materials.
--photochemical smog [kg ethene eq.] caused by ehtene, acetone, acetylene, butanols, benzene, ethane, formaldehyde, glycols, propane, toluene, xylenes and many other compounds resulting in photochemical oxidisation per one kg ethane;
Two recently proposed ANSI/ASHRAE Standard 34, Designation and Safety Classification of Refrigerants, addenda adopt nomenclature rules consistent with those already in use in industry and academia for ethene (ethylene, R-1150, [CH.sub.2]=[CH.sub.2]) and propene (propylene, R-1270, [CH.sub.3]CH=[CH.sub.2],) based refrigerants.
The lowest emissions for ground level ozone formation potential occur in the water-based ink system alternative, with 4.80g of ethene equivalents emitted per customer benefit.
For instance, ethane develops in the range of 285-640 [degrees]C (the maximum at 400 [degrees]C), ethene in the range of 280-600 [degrees]C (the maximum at 410 [degrees]C), propan in the range of 275-615 [degrees]C (the maximum at 415 [degrees]C) and propene in the range of 370-610 [degrees]C (the maximum at 420 [degrees]C).
For both catalytic pyrolysis and thermal pyrolysis of C4 hydrocarbons, the selectivity of propene is higher than that of ethene.
Morales [4] studied the interactions between [BF.sub.3] and dimethyl and perfluorodimethyl ether with AM1 calculations.1 Weak complexes between ethene, propene, ethyne, and propyne and [BF.sub.3] were studied by van der Veken's group by IR spectroscopy and MP2/6-31+G* calculations [5, 6].
And extensive laboratory studies and field demonstrations have proven that EOS can stimulate complete reductive dechlorination of TCE, PCE, and TCA to nontoxic ethene and/or ethane with just one treatment.