Abstract: A process to monitor unwanted formation of a polymer having internal mechanical strain is disclosed. The acoustic emission generated by polymer formation is detected by one or more acoustic sensors attached to a piece of equipment.

Abstract: The present invention is a process for the production of styrene monomer from ethylbenzene comprising the steps of: a) catalytically dehydrogenating said ethylbenzene in the presence of steam thereby catalytically producing a dehydrogenation effluent gas containing essentially unreacted ethylbenzene, styrene monomer, hydrogen, steam and divinylbenzene; b) quenching said effluent gas with an aqueous reflux in at least a quenching column to cool said effluent gas, and thereby obtaining a gas at the overhead and in the bottom a liquid stream warmer than the aqueous reflux; c) condensing said overhead gas thereby producing a liquid organic phase, an aqueous phase and a gaseous phase; d) using a portion or the whole of said aqueous phase of step c) as reflux for said step b) of quenching; e) sending to a decanter the liquid stream obtained at step b) to recover an aqueous phase and an organic phase.

Abstract: The present invention provides tools and methods for producing organic acids using strains of Monascus which are tolerant to high organicacid concentrations at low pH.

Abstract: The processing comprises an analysis of a seismic image to estimate seismic horizons in an area of the subsurface and the calculation of an accumulation value associated with each pixel of the seismic image by accumulation along a set of estimated seismic horizons to form a synthesized image composed of accumulation values. This synthesized image is transformed to obtain a seismic representation in which signed amplitudes are allocated to the pixels of the synthesized image. The transformation may comprise a combination with the original seismic image or else a convolution with a wavelet or another convolution kernel.

Abstract: The present invention concerns a heterophasic propylene copolymer of high melt flow for injection molding, which comprise a propylene polymer matrix and a rubber. The heterophasic propylene copolymers of the present invention are characterized by a high viscosity of the rubber phase and a well-defined ratio of the intrinsic viscosities of the rubber phase and the propylene polymer matrix, thus resulting in improved mechanical properties. The present invention further relates to a process for the production of such heterophasic propylene copolymers, their use and articles produced with them.

Abstract: A well passing through a geological formation is fitted with a tube, open at its bottom end, that is filled with a fluid. Another fluid is in the annular space between the tube and the wall of the well, the two fluids exhibiting an interface situated in the annular space. A hydraulic balance of the fluids of the well is disturbed and the trend of certain quantities is measured. These measurements are moreover simulated by computer by using different sets of values for the physical parameters, and efforts are made to estimate the geological formation. A comparison of the measurements with the simulation results makes it possible to identify an optimum set of values for the parameters.

Abstract: This invention discloses caps and closures produced by injection molding with a bimodal high density polyethylene (HDPE) resin comprising a low molecular weight, high density polyethylene fraction substantially free of comonomer and a high molecular weight, low density polyethylene fraction, having a molecular weight distribution of at least 3.5, preferably greater than 4.0, prepared in two reactors connected in series in the presence of a metallocene-containing catalyst system, wherein the metallocene comprises a bisindenyl or a bis-tetrahydrogenated-indenyl component.

Abstract: The invention relates to a process for preparing a hydroconversion catalyst based on modified zeolite Y, comprising the steps of: A—preparation of a modified zeolite Y, whose intracrystalline structure presents at least one network of micropores, at least one network of small mesopores with a mean diameter of 2 to 5 nm and at least one network of large mesopores with a mean diameter of 10 to 50 nm, these various networks being interconnected; B—mixing the zeolite with a binder, shaping the mixture and then calcining; C—introducing at least one catalytic metal chosen from metals of group VIII and/or of group VIB, followed by calcination. The invention also relates to a catalyst obtained via this process and also to the use thereof.

Abstract: Process for the fluidized-bed catalytic cracking of a weakly coking feedstock having a Conradson carbon residue equal to or less than 0.1% by weight and a hydrogen content equal to or greater than 12.7% by weight, comprising at least a step of cracking the feedstock, a step of separating/stripping the effluents from the coked catalyst particles and a step of regenerating said particles, the process being characterized in that at least one coking, carbonaceous and/or hydrocarbonaceous effluent having a content of aromatic compounds of greater than 50% by weight, comprising more than 20% by weight of polyaromatic compounds, is recycled to homogeneously distributed and weakly coked catalyst, before regeneration, in order to adjust the delta coke of the process.

Abstract: Method, devices and systems are provided for measuring deformation in subterranean formations. Such methods include introduction of spaced-apart depth magnetic markers along the longitudinal length of a well bore and measuring the position of each depth marker over time so as to determine deformation of the subterranean formation. In certain embodiments, depth markers comprise rare earth magnets. In further embodiments, orientation of each magnetic bullet is determined over time to determine the change in orientation of each magnetic bullet. Advantages of the methods and devices herein include, but are not limited to, improved accuracy and reliability of deformation measurements and reduced environmental impact due to the avoidance of radioactive markers used by the present invention.

Abstract: The present invention concerns a monovinylaromatic polymer composition comprising a bio-sourced polymer dispersed phase and optionally a rubber dispersed phase wherein said bio-sourced polymer dispersed phase is predominantly made of particles having a size of less than 10 ?m. The present invention also relates to a process (hereunder referred as the first process) to make said monovinylaromatic polymer composition, said process comprising admixing: a monovinylaromatic monomer, at least one bio-sourced polymer, optionally a rubber, at conditions effective to polymerize at least a part of the monovinylaromatic monomer and generate a compatibilizer of the bio-sourced polymer and monovinylaromatic polymer.

Abstract: Formulated propellants and methods of forming the same are described herein. The formulated propellants include a hydrocarbon fluid, wherein the formulated propellant exhibits a distillation curve 10% point at a temperature between 365° F. (185° C.) and 410° F. (210° C.) and an end point at or below 525° F. (273° C.).

Abstract: A monovinylaromatic polymer composition can include a bio-sourced polymer dispersed phase and optionally a rubber dispersed phase. The bio-sourced polymer dispersed phase can be predominantly made of particles having a size of less than 10 ?m. The monovinylaromatic polymer composition can be made by admixing a monovinylaromatic monomer, bio-sourced polymer, and optionally rubber at conditions effective to polymerize at least a part of the monovinylaromatic monomer and generate a compatibilizer. The monovinylaromatic polymer composition can be made by admixing a monovinylaromatic monomer, functionalized bio-sourced polymer(s) or mixtures of bio-sourced polymer(s) and functionalized bio-sourced polymer(s), and optionally rubber at conditions effective to polymerize at least a part of the monovinylaromatic monomer.

Abstract: The application discloses a process and apparatus for characterising the evolution of a reservoir by co-analyzing the changes in the propagation times and seismic amplitudes of seismic reflections. The method comprising the steps of: providing a base survey of the reservoir with a set of seismic traces at a first time; and providing a monitor survey of the reservoir, taken at a second time, with a set of seismic traces associated to the same positions as in the base survey. The evolution of the reservoir is then characterised by inversion to obtain an estimate of the changes having occurred in the time interval between base and monitor surveys, the inversion being performed using at least some seismic traces for which no assumption is made that the energy is propagating vertically. In a main embodiment, inversion is performed by minimising a function which includes a term dependent on the incident angle of the seismic reflections.

Abstract: The present invention provides tools and methods for producing organic acids using strains of Monascus which are tolerant to high organic acid concentrations at low pH.

Abstract: The present invention relates to a process for the polymerization of an olefin monomer. In particular, the present invention relates to a process for the polymerization of an olefin monomer and one or more optional comonomers in presence of a polymerization catalyst and hydrogen, said process being characterized by an improved control of the hydrogen concentration in the polymerization reactor. In addition, the present invention provides for an improved hydrogen feeding system to a polymerization reactor. Furthermore, the present invention provides for a polymerization reactor comprising such an improved hydrogen feeding system.

Abstract: Process and device for measuring the conversion of mercaptans to disulfides, in which the progress of the reaction for producing disulfides is monitored by measuring the redox potential.

Abstract: A grease composition includes at least one mineral-based or synthetic-based oil, individually or in a mixture; at least one fatty acid simple or complex metal soap as thickener; at least one molybdenum dithiocarbamate; and graphite. The grease can be used for constant velocity joints of a motor vehicle transmission.

Abstract: A method for determining the amount of hydrocarbons in a composition including hydrocarbons and water, includes: adding a chemical agent to the composition in order to form an emulsion of water and hydrocarbons; taking a sample of the emulsion and dissolving this sample in a common solvent for water and hydrocarbons in order to form a solution; measuring the amount of hydrocarbons in the solution. An installation suitable for implementing this method is also provided.

Abstract: Disclosed herein are systems and methods for enhancing a sequence of video images to add depth and presenting the enhanced images to the user through a lenticular lens arrangement on a display screen for viewing the enhanced images in three-dimensions (3D). The embodiments include the application of image enhancing algorithms which measure spatial and temporal differences between sequential images in an input video stream in order to measure depth within the images and produce one or more interleaved images with depth. Multiple sequential interleaved images may then be created in real-time as the images from the video stream are received, and the sequence of interleaved images may then be presented immediately as a video stream on a display fitted with a lenticular lens to effectively display a 3D video to the user.