ExxonMobil

About: ExxonMobil is a company organization based out in Irving, Texas, United States. It is known for research contribution in the topics: Catalysis & Polymer. The organization has 16969 authors who have published 23758 publications receiving 535713 citations. The organization is also known as: Exxon Mobil Corporation & Exxon Mobil Corp..

Auger-electron ion coincidence studies of soft-x-ray-induced fragmentation of N2.

Abstract: We report a coincidence experiment between energy-selected Auger electrons and the ions produced in the molecular fragmentation following core photoionization of ${\mathrm{N}}_{2}$. In this type of measurement it is possible to correlate the ion fragmentation products, their kinetic energy, and their electronic configuration with the hole configuration in the doubly charged molecule following the Auger decay of the initial core hole. These data produce new insight into the potential energy curves of the doubly charged molecular ions.

Dynamically cured thermoplastic olefin polymers and process for producing the same

Abstract: A dynamically vulcanized thermoplastic composition is provided which comprises a polymer blend of a thermoplastic olefinic resin, and an elastomeric halogen-containing copolymer of a C4 to C7 isomonoolefin and a paraalkylstyrene. A process for preparing the dynamically vulcanized composition is also provided.

Fuel supply apparatus for an internal combustion engine

Abstract: A gasoline in a material fuel tank is separated into a high-RON fuel having a higher octane value than the material fuel and a low-RON fuel having a lower octane value than the material fuel, by a separator device equipped with a separation membrane. Using a fuel switching mechanism, one or both of the high-RON fuel and the low-RON fuel are supplied to the engine in accordance with the state of operation of the engine. As the octane value of a fuel can be changed in accordance with the engine operation state, the state of combustion in the engine improves, so that both an increase in engine output and an improvement in an exhaust property can be achieved.

N-Aryl–linked spirocyclic polymers for membrane separations of complex hydrocarbon mixtures

Abstract: The fractionation of crude-oil mixtures through distillation is a large-scale, energy-intensive process. Membrane materials can avoid phase changes in such mixtures and thereby reduce the energy intensity of these thermal separations. With this application in mind, we created spirocyclic polymers with N-aryl bonds that demonstrated noninterconnected microporosity in the absence of ladder linkages. The resulting glassy polymer membranes demonstrated nonthermal membrane fractionation of light crude oil through a combination of class- and size-based "sorting" of molecules. We observed an enrichment of molecules lighter than 170 daltons corresponding to a carbon number of 12 or a boiling point less than 200°C in the permeate. Such scalable, selective membranes offer potential for the hybridization of energy-efficient technology with conventional processes such as distillation.

Composite tubular elements

Abstract: A novel tubular composite structure for transmitting substantial forces comprising a metal tubular core having a layer of structural metal adhesive on the exterior thereof. On top of the structural adhesive layer are alternating laminae of resin impregnated unidirectional reinforcing fibers and of woven fiberglass, beginning with a layer of woven fiberglass followed by a lamina of resin impregnated unidirectional reinforcing fibers and continuing in alternating fashion but ending with a final layer of resin impregnated continuous unidirectional reinforcing fibers. All fibers are disposed at a predetermined angle of orientation with respect to the longitudinal axis of the tube. The number of layers disposed along the length of the tubular core varies such that the core thickness along the length of the tubular shaft has its greatest thickness at the mid section of the shaft.