Chemical Structure of Asphaltene Derived from Coal Hydrogenation Reaction. GPC Fractions of Asphaltene and Their Product Oils by Secondary Hydrogenation.
نویسندگان
چکیده
منابع مشابه
Hydrogenation of Edible Oils
and selective hydrogenation of liquid oils is practiced to change the physical proper~ies for solid fat products or to improve the stability of highly unsaturated oils during high temperature use. Hydrogenated ' vegetable oils are used in the formulation of shortenings, margarines, salad/cooking oils, and other foods. In the United States, the total consumption of visible and non-visible fat is...
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The precipitation of asphaltenes in two Mexican crude oils was measured using a combination of high-pressure isothermal expansion and atmospheric titration with nalkanes. Experiments were carried out from the liveand tank-oil type of samples of the same crude oils. For the oils investigated, compositional data, precipitation phase diagrams, and bubble point pressures are reported. A theoretical...
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The molecular properties of asphaltenes have been the subject of uncertainty in the literature; in particular the molecular architecture is still a matter of debate. Some literature reports provide evidence that the contrast of petroleum asphaltenes versus coal-derived asphaltenes is useful for understanding the governing principles of asphaltene identity. Here, we employ fluorescence correlati...
متن کاملAsphaltene nanoparticle aggregation in mixtures of incompatible crude oils.
We study the structure and phase behavior of asphaltenes comprised of large polyaromatic molecules in blends of naturally occurring crude oils using small angle neutron scattering (SANS). When two compatible oils are blended together, the asphaltenes remain dispersed as colloidal nanoparticles; however, when two incompatible oils are blended together, these asphaltene nanoparticles can aggregat...
متن کاملCoal hydrogenation and environmental health.
Planning of coal hydrogenation processes, such as liquifaction and gasification, requires consideration of public health implications. Commercial plants will require coal quantities greater than or equal to 20,000 tons/day and the large size of these plants calls for careful consideration of the potential health hazards from the wastes and products of such processes. Analysis of pollution poten...
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ژورنال
عنوان ژورنال: Journal of the Japan Institute of Energy
سال: 1993
ISSN: 1882-6121,0916-8753
DOI: 10.3775/jie.72.30