Abstract: The present invention is a method to determine the bound and free fluid index of fluids in porous media by pulsed field gradient (PFG) NMR diffusion measurements. The PFG NMR signal is evaluated using a two-fluid model that describes the self diffusion coefficients for the fluid fractions with low and high translational mobilities.

Abstract: The present invention is a system and method for identifying a vehicle for the purpose of displaying diagnostic information to the driver. Each vehicle includes a transponder that transmits an encoded character sequence that is unique to that vehicle. In this way vehicle diagnostic measurements made at the establishment entrance can be associated with the vehicle, and displayed to the customer when the vehicle is recognized again at a service area.

Abstract: A new copolymer composition comprising the hard segment of a polyimide, the soft segment of an oligomeric aliphatic polyester, and a diepoxide for crosslinking and esterification. The new diepoxide polyimide copolymer membranes have exhibited high selectivity and flux for separation of an aromatic/saturate mixture. These new membranes have shown much better stability in soaking with an aromatic/saturate feed than the copolymer membranes without a diepoxide.

Abstract: A process to make a seed high silica zeolite having a faujasite structure and a silica to alumina ratio greater than 6, and containing tetrapropyl ammonium and/or tetrabutyl ammonium trapped within the supercages of said structure. The optimally seeds are aged for specific times.

Abstract: An improved vapor recovery system for a fuel dispensing nozzle having an automatic shut-off. The improvement includes a lockout for activating the automatic shut-off, an activating collar having one end adjacent to the lock-out and able to engage the lock-out when the nozzle is dispensing fuel, and a seal enclosing the lock-out and the collar, the seal having (i) a cup-shaped portion at end that fits over and circumferentially around the fuel inlet while the nozzle is dispensing fuel, (ii) a middle portion that compresses while the nozzle is dispensing fuel, and (iii) an interior constriction that engages the end of the collar opposite of the lock-out so as to prevent back splashed fuel from entering the portion of the seal enclosing the collar.

Abstract: A method and a sensor to measure the sulfur activity in sulfur-containing environments are disclosed. The active component is a non-stoichiometric metal sulfide foil or film. In the case of a thin sulfide film, a ceramic substrate is employed for improved mechanical rigidity. The electrical conductivity of the sulfide is related to the sulfur activity of the process stream to which it is exposed.

Abstract: A synthetic gallosilicate zeolite having a 12-ring pore structure and a process for preparing it.

Abstract: A system that will indicate tire inflation. A two-dimensional array of sensors is used to determine the distribution of contact forces over the footprint of a pneumatic tire. A neural network may be employed to classify the patterns of force sensed in this manner, and to closely estimate the actual tire inflation pressure.

Abstract: A method of operating a spectrometer to determine property and/or composition data of a sample comprises an on-line spectral measurement of the sample using a computer controlled spectrometer, statistical analysis of the sample data based upon a statistical model using sample calibration data, and automatically identifying a sample if necessary based upon statistical and expert system (rule-based) criteria. Sample collection based upon statistical criteria consists of performing a statistical or rule-based check against the model to identify measurement data which are indicative of chemical species not in the samples already stored in the model. Samples identified either by a statistical criteria or using an expert system (rule-based decisions) are used preferably to isolate the liquid sample using a computer controlled automatic sampling system. The samples can be saved for subsequent laboratory analysis in removable sample containers.

Abstract: The present invention is a method to determine fluid transport properties of porous media by nuclear magnetic resonance measurements of fluid flow. The NMR signal is encoded by the fluid flow velocity from which the velocity spectrum and the fluid flow properties are obtained.

Abstract: A method and system to optimize the acid strength and level of total organic carbon (TOC) of process streams in which specific hydrocarbons are extracted from hydrocarbon mixtures by sulfuric acid.

Abstract: A method uses near-infrared radiation to optimize the removal or separation of normal paraffins from a kerosene feed stream. The absorptivity of a feed stream and/or sievate is determined for at least one near-infrared wavelength. The weight percent of the normal paraffins in the feed stream and/or sievate is determined from the absorptivity. The determined weight percent is used to control the removal or separation of normal paraffins from the kerosene feed stream.

Abstract: Method and apparatus for optimizing the extraction of aromatics from waxy distillates and the dewaxing of waxy raffinates in the manufacture of lubricating oils.

Abstract: This present invention includes a composition of matter made up of a kandite clay which has been treated with large molecules containing multi-atom metallic or semi-metallic species and heated to produce pillars within the clay which are located generally between the clay's layers. The pillared kandite composition is useful as a catalyst support, sorbent, or ion exchanger.The present invention also includes a process for producing the pillared kandite composition comprises mixing the finely divided clay in an aqueous solution with the pillaring medium and heating the resulting composition at a temperature high enough to decompose the added compound.

Abstract: The present invention is a method to determine the oil content of a waxy isomerate by NIR radiation which is then used to control the separation of oil from the waxy isomerate.

Abstract: A system that will indicate tire inflation and vehicle velocity. An array of strain gage sensors is used to determine the distribution of contact forces along the width of a pneumatic tire. A neural network may be employed to classify the patterns of force sensed in this manner. Additional processing of the data permits vehicle velocity to also be determined.

Abstract: The present invention includes the use of crosslinked fluorinated polyolefin membranes membranes for the separation of aromatics from saturates, wherein aromatics can contain sulfur and nitrogen.

Abstract: The present invention is a method to rapidly determine the fluid-flow permeability of porous media with nuclear magnetic resonance (NMR). The method can be applied to measurements of permeability in fluid-saturated earth formations using NMR logging tools.

Abstract: The present invention is a rare-earth exchanged form of zeolite Q, which shows high thermal stability, and properties characteristic of a 12-ring zeolite structure.

Abstract: Apparatus for transversely irradiating a region equally from two directions using a single incident beam of substantially collimated radiation. The apparatus includes perpendicular reflective planes having a common edge and defining a corner region in which an irradiated region entirely within said corner region, said irradiated region being suitably positioned within said corner region such that said irradiated region does not intercept any ray of incident radiation from striking said common edge, said irradiated region receiving only radiation from two directions. Said irradiated region being directly irradiated from a first direction by incident radiation, and said irradiated region being also indirectly irradiated from a second direction opposite said first direction by incident radiation reflected from both of said planes.