Topic
Aromatic hydrocarbon
About: Aromatic hydrocarbon is a research topic. Over the lifetime, 5814 publications have been published within this topic receiving 55499 citations. The topic is also known as: arene & arenes.
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17 Feb 1989
TL;DR: A bacterium of the genus Pseudomonas which utilizes a branched chain alkyl-substituted aromatic hydrocarbon as its sole carbon and energy source and which is capable of substantially complete degradation of trichlorethylene (TCE) at a rate of up to about 32 nmol hr-1 mg cells-1 based upon the dry weight of the cells, and methods utilizing the bacterium for the detoxification of TCE-contaminated material as mentioned in this paper.
Abstract: A bacterium of the genus Pseudomonas which utilizes a branched chain alkyl-substituted aromatic hydrocarbon as its sole carbon and energy source and which is capable of substantially complete degradation of trichlorethylene (TCE) at a rate of up to about 32 nmol hr-1 mg cells-1 based upon the dry weight of the cells, and methods utilizing the bacterium for the detoxification of TCE-contaminated material.
25 citations
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TL;DR: In this paper, the cyclic voltammetric Ar reduction wave in the presence of S 2 O 8 2− was generally of the catalytic type, with Ar regenerated by the following chemical reaction with peroxydisulfate.
25 citations
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05 Aug 1977TL;DR: In this paper, the reaction of cyclohexane derivatives with hydrogen and a reagent selected from the group consisting of water, and carboxylic acids in the presence of a strong acid and a hydrogenation catalyst is described.
Abstract: Cyclohexane derivatives such as cyclohexanol and cyclohexyl carboxylates are produced directly from aromatic hydrocarbons. The reaction may be carried out, under hydrogenation conditions, by reacting an aromatic hydrocarbon with hydrogen and a reagent selected from the group consisting of water, and carboxylic acids in the presence of a strong acid and a hydrogenation catalyst.
24 citations
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11 May 1984TL;DR: In this article, an asymmetric polyimide membrane is used for selective permeation of the aromatic hydrocarbons and the terminal isomers through a permselective membrane, and the membrane is carried out at a pressure of about 100 to 800 psig, with a temperature of about 0° to 100° C.
Abstract: In the production of alkylaromatics by the alkylation of aromatic hydrocarbons with alkylating agents such as olefins typically in the presence of a catalyst, the unconverted aromatic hydrocarbon remaining after completion of the alkylation process is separated from the alkylaromatic product and the terminal alkylaromatic isomers are separated from the mixture of alkylaromatic isomers produced in the alkylation process by the selective permeation of the aromatic hydrocarbon and the terminal isomers through a permselective membrane, preferably an asymmetric membrane producing a permeate rich in the terminal isomers and a retentate which is lean (i.e., depleated) in the terminal isomers. Permeation is under reverse osmosis conditions, that is, under a pressure sufficient to at least overcome the osmotic pressure of the aromatic hydrocarbon present in the mixture made up of the aromatic hydrocarbon, the olefin and the mixed isomer alkylaromatic product. Permeation is carried out at a pressure of about 100 to 800 psig, preferably a pressure of about 200 to 600 psig, more preferably a pressure of about 300 to 500 psig, at a temperature of about 0° to 100° C., preferably about 20°-80° C., most preferably about 20° to 50° C. The membrane of choice is an asymmetric polyimide membrane.
24 citations
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TL;DR: In this paper, five aromatic hydrocarbons were selected to investigate the laser desorption/ionization mass spectra of secondary organic aerosols resulting from OH-initiated photooxidation of aromatic compounds.
Abstract: Five aromatic hydrocarbons – benzene, toluene, ethylbenzene, p-xylene and 1,2,4-trimethylbenzene – were selected to investigate the laser desorption/ionization mass spectra of secondary organic aerosols (SOA) resulting from OH-initiated photooxidation of aromatic compounds. The experiments were conducted by irradiating aromatic hydrocarbon/CH3ONO/NO
X
mixtures in a home-made smog chamber. The aerosol time-of-flight mass spectrometer (ATOFMS) was used to measure the aerodynamic size and chemical composition of individual secondary organic aerosol particles in real-time. Experimental results showed that aerosol created by aromatics photooxidation is predominantly in the form of fine particles, which have diameters less than 2.5 μm (i.e. PM2.5), and different aromatic hydrocarbons SOA mass spectra have eight same positive laser desorption/ionization mass spectra peaks: m/z = 18, 29, 43, 44, 46, 57, 67, 77. These mass spectra peaks may come from the fragment ions of the SOA products: oxo-carboxylic acids, aldehydes and ketones, nitrogenated organic compounds, furanoid and aromatic compounds. The possible reaction mechanisms leading to these products were also discussed.
24 citations