Gas-phase
Gas phase reactions of ozone with olefins.
... GAS PHASE REACTIONS OF OZONE WITH OLEFINS: Biogenic emissions of volatile organic compounds play a fundamental role in the atmospheric chemistry, vegetation being one of their major ...the gas ...
11
Heterogeneous biocatalysis in solid/gas phase: principles and applications.
... HETEROGENEOUS BIOCATALYSIS IN SOLID/GAS PHASE: PRINCIPLES AND APPLICATIONS. Enzymatic conversion of gaseous substrates into products in aquo-restricted media, using enzymes or whole cells (free and ...
8
Development and evaluation of the aerosol dynamic and gas phase chemistry model ADCHEM
... In this work the initial evaporation of particulate organic material because of dilution was not treated by the model with the assumption that this evaporation is a fast pro- cess (not significantly mass transfer ...
70
Gas-phase conversion of glycerol to allyl alcohol over vanadium-supported zeolite beta
... in gas phase and using hydrogen as reductant, have shown that supporting silver on a hierarchical HZSM-5 zeolite allows the formation of allylic alcohol via the reduction of acrolein formed on the acid ...
22
An Improved method for meAsurIng soIl mIcrobIAl ActIvIty by gAs phAse flow InjectIon AnAlysIs
... simple, with a substantially shorter sample handling time and reproducibility equivalent to the traditional titration method. A comparison of the concentration values determined by gas phase flow injection ...
10
Formation of secondary aerosols: impact of the gas-phase chemical mechanism
... the gas-phase chemical mechanisms in air quality models (AQMs) play an im- portant role in modeling aerosol ...Different gas-phase chemical kinetic mechanisms have been developed to represent ...
48
A semi-analytical method for calculating rates of new sulfate aerosol formation from the gas phase
... of gas phase molecules by aerosol parti- ...of gas phase molecules by small molecular clusters, which are needed for the calcula- tion of dependable particle formation rates, have been deter- ...
13
How does deposition of gas phase species affect pH at frozen salty interfaces?
... First, does the nature of the interfacial layer (QLL vs. brine layer) affect pH changes at the surface caused by the deposition of gas phase acid? Wren and Donaldson (2012) showed clear evidence for ...
25
Kinetics of the reactions of isoprene-derived hydroxynitrates: gas phase epoxide formation and solution phase hydrolysis
... relative gas phase concen- trations are representative of the true relative product ...reduce gas–wall interactions, and care was taken to ensure that product signals were fully equilibrated at each ...
14
Gas phase precursors to anthropogenic secondary organic aerosol: detailed observations of 1,3,5-trimethylbenzene photooxidation
... of gas phase measurements made to date describing the unexplored composition and evolution of the organic oxida- tion products of an anthropogenic SOA ...include gas phase oxida- tion products ...
31
Gas Phase Conversion of Waste Glycerol to Synthesis Gas: Equilibrium Product Distribution
... the gas phase glycerol conversion to synthesis gas has been simulated using ChemCad ...synthesis gas production have been predicted at equilibrium ...synthesis gas with a H 2 /CO ratio ...
4
Design and characterization of a smog chamber for studying gas-phase chemical mechanisms and aerosol formation
... Donahue, N. M., Henry, K. M., Mentel, T. F., Kiendler-Scharr, A., Spindler, C., Bohn, B., Brauers, T., Dorn, H. P., Fuchs, H., Till- mann, R., Wahner, A., Saathoff, H., Naumann, K.-H., Möhler, O., Leisner, T., Müller, ...
13
Gas-phase dehydration of glycerol over thermally-stable SAPO-40 catalyst
... in gas and liquid-phase 2 , with a great variety of ...liquid- phase, frequently with acids, gives rise to a corrosive medium that makes difficult commercial implementation due to high equipment ...
20
Simulation of aromatic SOA formation using the lumping model integrated with explicit gas-phase kinetic mechanisms and aerosol-phase reactions
... identified, although much effort has been expended in aromatic SOA product identification. For exam- ple, in a recent study by Sato et al. (2012) using liquid chromatography–mass spectrometry (LC-MS), only ∼ 1 wt% of the ...
15
Diesel-related hydrocarbons can dominate gas phase reactive carbon in megacities
... The past 2 decades have seen declining concentrations of most smaller hydrocarbons in European and US cities, a result of tighter regulation of sources such as vehicle ex- haust, evaporation and solvents (von ...
14
Occurrence of gas phase ammonia in the area of Beijing (China)
... main chemical sink for ammonia in the atmosphere is the reaction with H 2 SO 4 , yielding ammonium sulphate [(NH 4 ) 2 SO 4 ] and ammonium bisulphate [NH 4 HSO 4 ] salts. Reac- tions with HNO 3 and HCl yield ammonium ...
31
Influence of application of Hottel’s zonal model and six-flux model of thermal radiation on numerical simulations results of pulverized coal fired furnace
... different gas-phase temperatures and different method of ...and gas-phase temperatures obtained by both mathematical ...using gas-phase temperatures from mathematical model ...
12
Aqueous-phase ozonolysis of methacrolein and methyl vinyl ketone: a potentially important source of atmospheric aqueous oxidants
... aqueous phase but both can contact the aqueous phase si- multaneously from the gas phase and react at the instant of ...multi- phase chemical ...between gas-phase and ...
11
Hydrodynamics of gas-agitated liquid-liquid extraction columns
... two- phase countercurrent flow with interfacial transfer in a packed bed absorption column ...the gas phase and a piston-diffusion exchange model for the liquid ...
18
Primary and secondary organic aerosol origin by combined gas-particle phase source apportionment
... combined gas-particle phase source apportionment is applied to wintertime and summertime data collected in the megacity of Paris in order to investigate SOA origin during both ...of gas-phase ...
16