434. Some catalysed gas-phase reactions of aromatic hydrocarbons. Part IV. The polymethylbenzenes formed in the reactions of dimethyl ether with benzene, toluene, and the xylenes

1948 ◽  
pp. 2154
Author(s):  
P. H. Given ◽  
D. Ll. Hammick
Keyword(s):  
Gas Phase ◽  
Dimethyl Ether ◽  
Aromatic Hydrocarbons ◽  
Gas Phase Reactions ◽  
Benzene Toluene

scholarly journals Secondary organic aerosol formation from photooxidation of naphthalene and alkylnaphthalenes: implications for oxidation of intermediate volatility organic compounds (IVOCs)

2009 ◽  
Vol 9 (1) ◽  
pp. 1873-1905
Author(s):  
A. W. H. Chan ◽  
K. E. Kautzman ◽  
P. S. Chhabra ◽  
J. D. Surratt ◽  
M. N. Chan ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Gas Phase ◽  
Aromatic Hydrocarbons ◽  
Secondary Organic Aerosol ◽  
Organic Aerosol ◽  
Aerosol Formation ◽  
Atmospheric Models ◽  
Gas Phase Reactions ◽  
Aerosol Mass ◽  
Polycyclic Aromatic

Abstract. Current atmospheric models do not include secondary organic aerosol (SOA) production from gas-phase reactions of polycyclic aromatic hydrocarbons (PAHs). Recent studies have shown that primary semivolatile emissions, previously assumed to be inert, undergo oxidation in the gas phase, leading to SOA formation. This opens the possibility that low-volatility gas-phase precursors are a potentially large source of SOA. In this work, SOA formation from gas-phase photooxidation of naphthalene, 1-methylnaphthalene (1-MN), 2-methylnaphthalene (2-MN), and 1,2-dimethylnaphthalene (1,2-DMN) is studied in the Caltech dual 28-m3 chambers. Under high-NOx conditions and aerosol mass loadings between 10 and 40 μg m

Procedure for Measuring the Weight Fraction of Products of Catalytic Pyrolysis of Ethylbenzene

2019 ◽  
Vol 19 (3) ◽  
pp. 187-192
Author(s):  
E. Yu. Yakovleva ◽  
Yan Shanshan ◽  
Z. P. Pai
Keyword(s):  
Gas Phase ◽  
Aromatic Hydrocarbons ◽  
Catalytic Pyrolysis ◽  
Capillary Column ◽  
Weight Fraction ◽  
Measurement Range ◽  
Analytical Measurement ◽  
Analytical Error ◽  
Error Margin ◽  
Benzene Toluene

A capillary column with functionalized poly(1-trimethylsilyl-1-propyne) (PTMSP/N2O) was proposed to use for detecting products of catalytic pyrolysis of ethylbenzene. The capillary PTMSP/N2O column separated selectively light C1–C2 (methane, ethane, ethylene, acetylene) and aromatic (benzene, toluene, ethylbenzene, styrene) hydrocarbons. A procedure for gas-phase measuring weight fractions of light C1–C2 and aromatic hydrocarbons was developed. The analytical measurement range was 2.9·10–8 to 1.2·10–1 mg/mL for light C1–C2 components and 3.5·10–11 to 4.0·10–3 mg/mL for liquid components. The analytical error margin at repetition ranged from 1.9 % to 4.7 %.

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