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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 11 of 11 for “"Alkylbenzenes"”.
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Cycling of linear alkylbenzenes (LABs) in the Gulf of Maine
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 1995.
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Catalytic cracking of n-alkanes and n-alkylbenzenes over H-ZSM-5 zeolite
Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1993.
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Investigation of the composition of linear alkylbenzenes with emphasis on the identification and quantitation of some trace compounds using GS/MS system in both electron impact and chemical ionization modes
Linear alkylbenzenes, LAB, formed by the Alel3 or HF catalyzed alkylation of benzene are common raw materials for surfactant manufacture. Normally they are sulphonated using S03 or oleum to give the corresponding linear alkylbenzene sulphonates In >95 % yield. As concern has grown about the …
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The effects of molecular structures and reactant temperatures on soot formation in a coflow laminar flame
… The effects of molecular structures of alkylbenzenes on soot formation in a coflow laminar flame are presented in Chapters 3, 4, and 5 of Part I. It is shown that 1,2,4-trimethylbenzene has a greater sooting tendency than n-propylbenzene because the former forms polycyclic aromatic …
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Energy and heat transport in molecules
… were estimated for the small organic molecules, alkylbenzenes, in the liquid phase. Boundary conductance and its common properties were calculated for the three different types of molecular junction and interfaces. The molecular junction we have studied here are water-sugar-gold nanoparticle …
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A Hazard Assessment of a Landfill Site
… site.<br/><br/>The chemical identification of alkylbenzenes and polyaromatic hydrocarbons indicates that the filter cake was not the only industrial source of waste to be deposited at the site.<br/><br/>The results of the analysis were used to determine what courses of action are open to the …
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Monitoring, characterizing, and preventing microbial degradation of ignitable liquids on soil
… loss of n-alkanes and lesser substituted alkylbenzenes predominantly and quickly, while more highly substituted alkanes and aromatics were not significantly affected. Additionally, the residential soil during the fall season showed the most significant loss of these compounds over the …
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Hydrothermal Liquefaction of Plastic as an Alternative Recycling Method
… showed significant increase in short-chain alkylbenzenes and notable changes in the ratios of oligomer produced depending on the feedstock composition. These findings highlight the potential of hydrothermal liquefaction as a promising plastic recycling technology, capable of recovering …
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Quantification of Phase Behaviour and Physical Properties of Solvents-Heavy Oil/Bitumen-Water Systems at High Pressures and Elevated Temperatures
… use. The mutual solubility for n-alkanes/n-alkylbenzenes-water pairs is correlated using the PR-EOS together with the two newly modified alpha functions. The binary interaction parameters (BIPs) for both aqueous phase and liquid hydrocarbon phase are generalized as functions of reduced …
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Preparation, characterisation and modification of porous carbon monolithic materials for chromatographic and electrochemical applications
… of mixtures of hydrophobic molecules (alkylbenzenes) on a short 5 μm pore sized glassy carbon monolithic column were carried out using a mobile phase of 100% hexane (or pentane), flow rate 0.7 ml/min, UV detection 270 nm. The backpressure for the monolithic phase was 2 bar. Also, …