Abstract: A process for production of propylene can include simultaneously subjecting isobutanol to dehydration and skeletal isomerization to make a mixture of n-butenes and iso-butene. The n-butenes can be subjected to methathesis. The process can include introducing isobutanol into a dehydration/isomerization reactor and contacting the isobutanol with a catalyst at conditions effective to dehydrate and skeletal isomerase the isobutanol to make a mixture of n-butenes and iso-butene. A mixture of n-butenes and iso-butene can be recovered and fractionated to produce an n-butenes stream. The n-butenes stream can be sent to a methathesis reactor and contacted with a catalyst at conditions effective to produce propylene. A stream can be recovered from the methathesis reactor that includes propylene, unreacted n-butenes, heavies, and optionally unreacted ethylene. The stream can be fractionated to recover propylene, and the unreacted n-butenes and unreacted ethylene can optionally be recycled to the methathesis reactor.

Abstract: The present invention relates to the development of tracer fluids, more generally, that of aqueous liquids, intended to be injected under pressure in an oil reservoir, for example from an injection well up to a production well. The object of the invention is to propose a new method of study of a solid medium, i.e. an oil reservoir, by diffusion of a liquid (i.e. injection waters) containing tracers, through said solid medium, which is simple to implement and economical and which remedies the drawbacks of the known tracers for injection waters of oil reservoirs.

Abstract: The present invention is the use of a catalyst in a MTO process to convert an alcohol or an ether into light olefins wherein said catalyst comprises a phosphorus modified zeolite and is made by a method comprising the following steps in this order, a) the essential portion of the phosphorus is introduced into a zeolite comprising at least one ten members ring in the structure, b) the phosphorus modified zeolite of step a) is mixed with at least a component selected among one or more binders, salts of alkali-earth metals, salts of rare-earth metals, clays and shaping additives, b)* making a catalyst body from mixture b), c) an optional drying step or an optional drying step followed by a washing step, d) a calcination step, d*) an optional washing step followed by drying, e) optionally a small portion of phosphorus is introduced in the course of step b) or b)* or at end of step b) or b)*.

Abstract: A flow rate control valve and a method for injecting a fluid into an underground formation are provided. In accordance with the method, the fluid is transported in at least one injection pipe. The injection pipe has a main portion including a single tube. The flow rate control valve has at least ten fluid transport tubes that are arranged in parallel. A ratio of the cross-section of the main portion over the sum of the cross-sections of the fluid transport tubes is less than or equal to 5. A flow rate of the fluid circulating in the injection pipe is adjusted by distributing the fluid through all or only some of the fluid transport tubes. The fluid from the injection pipe is then injected into the underground formation.

Abstract: The invention relates to a light-weight device for loading solid particles into an enclosure including at least one pipe (18, 20) for the circulation of said solid particles and at least one movable element for controlling the fall velocity of the particles, which is designed to be slidably moved inside of said pipe (18, 20). The device further includes a plurality of identical guide plates (12a, 12b) connected to each other by attachment means. Said at least one pipe (18, 20) is made of a flexible material and each guide plate (12a, 12b) has at least one through opening for receiving and guiding said at least one pipe (18, 20) in a position in which the longitudinal axis of the pipe extends substantially perpendicular to the plane of each guide plate.

Abstract: The invention concerns a process for hydroconversion of a hydrocarbonaceous feedstock comprising: a preparation step of at least one catalyst in one or more preparation reactor upstream from a reaction section, wherein (i) at least one preparation reactor feeds one or more reactor of the reaction section, or (ii) preparation reactors are dedicated for catalysts fed to at least a hydroconversion reactor or at least a hydrotreatment reactor of the reaction section; a separation step of solids contained in the liquid effluents issued from the reaction section, a treatment step of residues issued from separation section, comprising a partial oxidation step wherein said residues are partially oxidized to produce carbon monoxide, hydrogen an a metal containing residue. Such process permits improving of products quality, operation of the separation section, recovering of catalytic metals contained in the feed and supplying hydrogen to the reaction section.

Abstract: A system and method for providing emergency alarm communications in an fire panel network having a ring topology. The fire panels of the network each include an emergency interface between a panel processor and a panel transceiver. The emergency interface includes a communication link that is different from a normal TCP/IP communication link of the associated panel. The emergency interface comprises a separate communication path from the normal communication link. When normal TCP/IP communications are interrupted, the emergency interface is operable to transmit alarm signals to an adjacent panel in the network. The alarm signals may then be transmitted between subsequently connected panels and a workstation or central monitoring station via the normal TCP/IP mode. The workstation and/or central monitoring station can recognize the alarm signals as being generated by the originating panel. Other embodiments are disclosed and claimed.

Abstract: A dehydration process may include introducing in a reactor an alcohol, and contacting the alcohol with an acidic catalyst to dehydrate the alcohol to make a corresponding olefin. The process may include recovering from the reactor the olefin and water. In the process, an effective amount of a component capable to neutralize a part of the catalyst active site may be introduced. The component may include ammonia, organic ammonium salts, hydrazine, nitriles, amines, amides, imines, di-imines, imides, cyanates, isocyanates, nitrites and nitroso compounds, aldehydes, ketones, carboxylic esters, and their corresponding thio-compounds.

Abstract: The present disclosure relates to novel anti-wear additives for diesel or biodiesel fuels having a sulphur content less than or equal to 500 ppm by mass. These novel additives will also improve the lacquering resistance of the higher-grade diesel or biodiesel fuels having a sulphur content less than or equal to 500 ppm by mass.

Abstract: The invention relates to a Y-type zeolite having a modified faujasite structure, the intracrystalline structure of which includes at least one network of micropores, at least one network of small mesopores having an average diameter ranging from 2 to 5 nm, and at least one network of large mesopores having an average diameter range from 10 to 50 nm. The invention also relates to particles including such zeolites and to the use thereof in a method for processing crude oil, particularly as a hydrocracking catalyst.

Abstract: Process for the purification of an alcohol in the course of a process comprising: (1) providing a reaction zone (C) comprising an acid type catalyst; (2) providing a reaction zone (B) comprising an acid adsorbent material; (3) providing an alcohol stream comprising impurities; (4) introducing the alcohol stream of (3) into the reaction zone (B) and bringing said stream into contact with the acid adsorbent material at conditions effective to reduce the amount of impurities having an adverse effect on the acid type catalyst of the reaction zone (C); (5) recovering from step (4) an alcohol stream and introducing it into the reaction zone (C); (6) optionally introducing one or more reactants (R) into the reaction zone (C); (7) operating said reaction zone (C) at conditions effective to recover a valuable effluent.

Abstract: There are provided methods for analyzing air including monitoring the air. For example, monitoring the air includes electronically sensing the air and determining whether an event in the air is occurring based on at least the electronically sensing. If an event is occurring, a sample of the air is collected for a further analysis. For example, the analysis is carried out to identify components present in the sample. There are also provided systems for analyzing air comprising : an air intake; an electronic sensor and a controller configured to monitor the air. Monitoring air includes controlling the air intake, controlling the electronic sensor to electronically sensing the air and determining whether an event in the air is occurring based on at least the electronically sensing. If an event is occurring, a sample of the air is collected for further analysis (e.g. to identify components present in the sample).

Abstract: The invention relates to a method of making a theremorevsible bituminous composition. The method includes transferring an additive to a bitumen to form a mixture, and stirring the mixture until its appearance is homogenous. The additive can be an organogelator with general formula R?—(COOH)z, where R? is a linear or branched, saturated or unsaturated chain having 4 to 68 carbon atoms and z is an integer varying from 2 to 4. The bituminous composition is hard at the temperature of use without increasing its viscosity when hot.

Abstract: The present invention relates to a process for recycling product streams that have been separated from a hydrocarbon-containing feed stream comprising olefin monomer, olefin co-monomer, hydrocarbon diluent and components such as H2, N2, O2, CO, CO2, and formaldehyde. In accordance with the present process a hydrocarbon-containing feed stream is separated into a) a first side stream comprising hydrocarbon diluent and olefin monomer; b) a second side stream which is substantially hydrogen-free and comprises hydrocarbon diluent and olefin monomer, c) a bottom stream comprising substantially olefin-free hydrocarbon diluent, and d) an overhead vapor stream comprising olefin monomer, hydrocarbon diluent and components such as formaldehyde, H2, N2, O2, CO and CO2. The present process further includes recycling said first and said second side streams in a polymerization process for preparing bimodal polyolefin.

Abstract: A rotomoulded article having one or more layers includes a layer A. The layer A includes from 50 to 99.4 wt % of a polyolefin; from 0.5 to 50 wt % of a polyester; from 0.1 to 20 wt % of a co- or ter-polymer; and from 0.1 to 20 wt % of an ionomer.

Abstract: A lubricating composition includes at least one base oil, at least one compound including a dithiocarbamate group, at least one compound including a phosphite group and at least one compound including a dithiophosphate group. The lubricating composition simultaneously has good anti-wear and extreme-pressure properties, a low coefficient of friction and good anti-seizing properties. The lubricating composition can be used for lubricating transmissions such as gearboxes, axles, preferably the manual gearboxes of motor vehicles.

Abstract: The invention relates to a hydrocarbon hydroprocessing catalyst comprising a support based on at least one refractory oxide, at least one metal from group VIII and at least one metal from group VIB. The inventive catalyst is characterized in that it also comprises at least one organic compound having formula (I) or (II): in which each R1 represents independently an alkyl group at C1-18, an alkenyl group at C2-18, an aryl group at C6-18, a cycloalkyl group at C3-8, an alkylaryl or arylalkyl group at C7-20, or the two R1 groups together form a divalent group at C2-18, and R2 represents an alkylene group at C1-18, an arylene group at C6-18, a cycloalkylene group at C3-7, or a combination of same. The invention also relates to a method of preparing one such catalyst and to the use thereof for hydroprocessing or hydrocracking.

Abstract: The invention concerns a process for upgrading lower quality carbonaceous feedstock using a slurry catalyst composition. The use of particular organometallic compounds as precursors for the dispersed active catalyst allows for reduced coke formation.

Abstract: For controlling a hydrocarbons production installation, comprising at least one hydrocarbons production string activated by a gas injection using a gas injection choke, and a production choke on the string, a method comprises a production phase during which the position of at least one of the chokes is adjusted by cascaded control loops. The loops are driven according to continuously or sequentially developing setpoint parameters. The installation can be controlled more accurately and quickly than in the prior art, as a cascade control loop architecture makes it possible to simplify each of the loops in order to increase the speed of implementation, while still taking account of a greater number of setpoint parameters.

Abstract: A process for upgrading heavy hydrocarbonaceous feedstocks in at least one hydroconversion reactor for hydroconversion of the heavy hydrocarbonaceous feedstocks and in at least one hydrotreatment reactor for hydrotreatment of the heavy hydrocarbonaceous feedstocks, comprising the preparation of two or more catalysts, each catalyst being prepared from one or more catalyst precursor in at least one specific preparation reactor, the catalyst precursor containing at least one transition metal selected from group IIA, IIIB, IVB, VB, VIB, VIIB, VIII, IB or IIB of the periodic table of elements, and each preparation reactor feeding one or more hydroconversion or hydrotreatment reactor, each catalyst contained in preparation reactors being dedicated to hydroconversion or hydrotreatment of the feedstocks.