The invention relates to a novel solid gas separation system suitable for all types of FCC unit regenerators. The inventive system consists of a device for the separation of solid particles contained in a gas stream originating from the regeneration zone of a fluid catalytic cracking unit (FCC) defined by an inner cylindrical casing (3) centred around the vertical axis of the regeneration zone and an outer casing (1) having an essentially horizontal wall (15) followed by a curvilinear wall (16) and an essentially vertical wall (17), said group of walls (15, 16, 17) covering the inner casing (3) and forming a set of separation chambers (2) distributed into enclosures located around the inner casing (3) containing the solid gas suspension to be separated. Said novel separation system enables very effective separation while minimising head loss and requiring only a single downstream cyclone stage.
B01J 8/24 - Chemical or physical processes in general, conducted in the presence of fluids and solid particlesApparatus for such processes with fluidised particles according to "fluidised-bed" technique
C10G 11/18 - Catalytic cracking, in the absence of hydrogen, of hydrocarbon oils with preheated moving solid catalysts according to the "fluidised bed" technique
B01D 45/06 - Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia by reversal of direction of flow
B01D 45/16 - Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces generated by the winding course of the gas stream
The invention relates to a catalytic method for treating an H2S/SO2 mixture for producing liquid sulphur, said method comprising the following steps: a) at least one step of heating the mixture containing SO2 and ९2S to a temperature Tc; b) at least one step of catalytically reacting the heated mixture obtained in a) in the presence of at least one catalyst and at least one step of recovering the exiting mixture containing gaseous sulphur; and c) at least one step of converting the gaseous sulphur contained in the exiting mixture obtained at step b) into liquid sulphur, said method being characterized in that, between step b) and step c), the temperature Ts of said exiting mixture and the dew point Tr of the gaseous sulphur contained in said exiting mixture are measured and in that the heating temperature Tc of step a) is adjusted so that the temperature Ts is 5°C to 30°C above the dew point Tr.
The present invention relates to a bituminous mastic, in other words a mixture comprising on the one hand at least one bitumen-based hydrocarbon binder, more particularly a blown bitumen, and on the other hand fines, including an ultrafines fraction. The invention also relates to poured asphalts and bituminous coatings comprising a bituminous mastic. A method of producing such bituminous materials is described, as are the road-building and industrial applications of these materials.
C08L 95/00 - Compositions of bituminous materials, e.g. asphalt, tar or pitch
B32B 11/04 - Layered products essentially comprising bituminous or tarry substances comprising such substance as the main or only constituent of a layer, next to another layer of a specific substance
4.
DEVICE FOR REDISTRIBUTING THE CATALYST IN FCC RISERS
The present invention discloses a device for improving the distribution of the catalyst in the charge injection zone of FCC risers so as to improve the conversion.
B01J 8/24 - Chemical or physical processes in general, conducted in the presence of fluids and solid particlesApparatus for such processes with fluidised particles according to "fluidised-bed" technique
C10G 11/18 - Catalytic cracking, in the absence of hydrogen, of hydrocarbon oils with preheated moving solid catalysts according to the "fluidised bed" technique
5.
CETANE IMPROVER FOR DIESEL FUELS AND DIESEL FUELS CONTAINING IT
Cetane improver for diesel fuels, characterized in that it comprises at least one ester of stearic acid, selected from the esters of linear or branched monoalcohols containing 1 to 6 carbon atoms: a) added in the pure state to a mixture of at least one vegetable or animal oil ester in crude or partially hydrogenated form b) or else included in a mixture of esters of one or more vegetable and/or animal oils, in crude or partially hydrogenated form, the mixtures of saturated or unsaturated esters being such that the ratio by mass of the amount of stearic ester(s) to the total sum of the amounts of unsaturated esters present in the vegetable or animal oil esters varies from 1% to 12%, and the unsaturated fatty acid esters being esters of mono or polyunsaturated acids containing at least 18 carbon atoms with monoalcohols.
METHOD FOR THE CARBOXYLATION TREATMENT OF METAL SURFACES, USE OF SAID METHOD IN ORDER TO PROVIDE TEMPORARY PROTECTION AGAINST CORROSION AND METHOD FOR PRODUCING SHAPED SHEET METAL THUS CARBOXYLATED
The invention relates to a method for the carboxylation conversion of a metal surface under oxidising conditions in relation to the metal, consisting in bringing the metal into contact with a hydro-organic or aqueous bath containing a mixture of organic acids. The invention is characterised in that: the organic acids comprise saturated linear carboxylic acids having between 10 and 18 carbon atoms; the mixture comprises a binary or ternary mixture of such acids; the respective proportions of said acids are such that (i) for a binary mixture x ± 5 % - y ± 5 %, wherein x and y represent the respective proportions, in molar percentages, of the two acids in a mixture with the composition of the eutectic and (ii) for a ternary mixture x ± 3 % - y ± 3 % - z ± 3 %, wherein x, y and z represent the respective proportions, in molar percentages, of the three acids in a mixture with the composition of the eutectic; and the concentration of the mixture in the bath is greater than or equal to 20 g/l.
C23C 22/48 - Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH < 6 not containing phosphates, hexavalent chromium compounds, fluorides or complex fluorides, molybdates, tungstates, vanadates or oxalates
C23C 22/53 - Treatment of zinc or alloys based thereon
C23C 22/56 - Treatment of aluminium or alloys based thereon
C23C 22/50 - Treatment of iron or alloys based thereon
C10M 173/02 - Lubricating compositions containing more than 10% water not containing mineral or fatty oils
The invention relates to a device (8') for injecting a liquid into a pipeline (5) comprising a cylinder (1'), which is substantially shaped in the form of a tube of a given axis, closed at the end (2') thereof, partially arranged inside said pipeline (5) and open at the other end thereof supplied with a liquid. The inventive device (8') is characterised in that it comprises incorporated into the wall of said cylinder (1') at least one orifice (3a, 3b, 3c, 3d) corresponding to the end of an injection channel (4a, 4b, 4c, 4d) which is open at both sides (3a, 3b, 3c, 3d, 7') and arranged substantially in a perpendicular position with respect to the longitudinal axis of the cylinder (1') thereinside. A method for operating the device (8') for injecting a liquid into the pipeline (5), in which a liquid and/or gaseous flow runs, is also disclosed.
Lead-free aviation fuel composition with a MON greater than 100, made up of a major component of a fuel made from Avgas and a minor component of at least two compounds from the group of esters of at least one mono-or poly-carboxylic acid and at least one mono- or polyol, anhydrides of a least one mono- or poly-carboxylic acid, preferably aromatic ethers at a level of at least 5% w/w and ketones at a level of more than 10% w/w.
The invention relates to a method for controlling the dewaxing of an oil phase comprising a hydrocarbon oil which has been optionally diluted in at least one organic solvent. The inventive method includes the following steps namely: a step (a) comprising the formation of wax crystals in the above-mentioned phase, and a step (b) comprising the separation of the wax crystals thus formed from the dewaxed oil phase. An additional step is performed between step (a) and step (b), consisting in measuring the number of wax crystals in the flux conveying a suspension of crystals from step (a) using a particle-size analysis probe, comprising the reflection of light on the crystals. According to the invention, an alarm procedure and/or an intervention procedure is triggered if the number of measured particles falls suddenly by a pre-determined value. The invention also relates to the use of one such particle-size analysis probe in order to detect at least one continuous liquid phase demixing phenomenon in a solid/liquid suspension or liquid/liquid dispersion flux.
The invention concerns a bituminous binder comprising at least one bitumen B, at least one crosslinked or non-crosslinked polymer P and at least one fluxant F, characterized in that the fluxant F comprises at least one fraction derived from castor oil, said fraction comprising at least one methyl ester of fatty acid(s). The invention is also directed to the products incorporating this new fluxant F as an ingredient, particularly to bituminous compositions in the form of an anhydrous or emulsion binder, unmodified or modified with one or more polymers, in the presence or absence of one or more crosslinking agents. The invention further concerns a concentrated stock solution which is useful for the preparation of bituminous compositions of this kind.
The invention relates to the use of at least one phosphoric or thiophosphoric ester in order to broaden the plasticity range of an anhydrous bitumen/polymer composition of the type comprising at least one bitumen, optionally at least one filler and at least one crosslinkable or non-crosslinkable polymer, preferably a bituminous mastic. Said use enables the absolute value of the lower limit (cold flexibility temperature) and/or the upper limit (ball-ring temperature) of the plasticity range of the composition to be increased. The aim of the invention is to provide a bitumen/polymer composition having a good performance when hot (increase in ball-ring softening temperature) and when cold (reduction in flexibility temperature), along with good storage stability.
The invention relates to a device for reducing fouling in a tube (1) through which a fluid passes. The inventive device comprises a mobile rotary element (3) and a fixed bearing-forming element (2) which can be solidly connected to the upstream end of the tube (1). In addition, the mobile element (3), which is connected to the fixed element (2), comprises an upstream trunnion-forming part (4) and a downstream turbulence-generating part (5) which is shaped such as to be rotated by the flow of the fluid in the tube (1). The aforementioned upstream (4) and downstream (5) parts are connected to one another by means of an elongated flexible connector (6) that is deformable along the entire length thereof.
The invention concerns a method for preparing a bitumen base, including the following essential steps: a) introducing a bitumen in a container equipped with mixing means, and bringing the bitumen to a temperature of 120°C to 300°C; b) introducing at least one chemical blowing additive into the container, and mixing, said chemical blowing additive being of general formula Ar1-R-Ar2 (I) wherein Ar1 and Ar2 independently of each other represent a benzene ring or a system of condensed aromatic rings of 6 to 20 carbon atoms, substituted by at least one hydroxyl group, and R represents an optionally substituted divalent radical, whereof the main chain comprises 6 to 20 carbon atoms and at least one amide and/or ester group. The invention also concerns a bitumen base obtained by implementing said method, as well as the use of such bitumen bases in road surfacing and industrial applications.
C08J 9/10 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen
The invention concerns a method for preparing a bitumen base, including the following essential steps: a) introducing a bitumen in a container equipped with mixing means, and bringing the bitumen to a temperature of 120°C to 300°C; b) introducing at least one chemical blowing additive into the container, and mixing, said chemical blowing additive being of general formula Ar1-R-Ar2 (I) wherein Ar1 and Ar2 independently of each other represent a benzene ring or a system of condensed aromatic rings of 6 to 20 carbon atoms, substituted by at least one hydroxyl group, and R represents an optionally substituted divalent radical, whereof the main chain comprises 6 to 20 carbon atoms and at least one amide and/or ester group. The invention also concerns a bitumen base obtained by implementing said method, as well as the use of such bitumen bases in road surfacing and industrial applications.
The invention relates to a lubricant, anti-corrosive and anti-static composition for hydrocarbon mixtures, comprising : a) at least one compound of formula (I), where R1 and R2 = H or a 1-40 C linear or branched alkyl group, optionally containing one to five double bonds, where R1 and R2 may together form a 5-6 C aromatic or aliphatic ring, said ring may have one to three 1-40 C linear or branched alkyl substituent groups, where R1 and R2 may not together = H, where R3 and R4, independently = OH-carrying groups, where R3 and R4 may not together = OH or derivative of a 1-20C linear or branched mono- or poly-ol with a functionality of 2 to 5 inclusive and b) at least one compound B corresponding to a saturated or unsaturated 16-24C fatty acid optionally mixed with a carboxylic acid with at least one aromatic and/or olefinic ring or polycyclic ring and/or the corresponding ester, amide or amine salt derivatives thereof alone or in a mixture.
C10L 10/04 - Use of additives to fuels or fires for particular purposes for minimising corrosion or incrustation
C10L 10/08 - Use of additives to fuels or fires for particular purposes for improving lubricityUse of additives to fuels or fires for particular purposes for reducing wear
C10M 141/02 - Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups , each of these compounds being essential at least one of them being an organic oxygen-containing compound
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (France)
Inventor
Lecarpentier, Sébastien
Van Gestel, Jacob
Dath, Jean-Pierre
Collet, Christine
Gilson, Jean-Pierre
Abstract
The invention relates to the use of a solid catalyst for opening hydrocarbon rings, which is comprised of: a mesoporous zirconium oxide (ZrO2) support, optionally doped with silica; tungsten oxide (WO3) in a quantity such that the mean number of tungsten (W) atoms by nm2 of specific area of zirconium oxide (ZrO2) ranges between 0.1 to 9, and; 0.1 to 5 %, with regard to the total weight of the solid catalyst, iridium. The invention also relates to a method for opening the ring of cyclic hydrocarbon compounds by using a catalytic composition of the aforementioned type.
B01J 35/10 - Solids characterised by their surface properties or porosity
C10G 45/62 - Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to change the structural skeleton of some of the hydrocarbon content without cracking the other hydrocarbons present, e.g. lowering pour pointSelective hydrocracking of normal paraffins characterised by the catalyst used containing platinum group metals or compounds thereof
17.
METHOD FOR DEGRADING POLYCYCLIC AROMATIC HYDROCARBONS BY USING AN IMMOBILIZED HEMOPROTEIN
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (France)
Inventor
Jamrozik, Claude
Thomas, Daniel
Pulvin, Sylviane
Bedel-Cloutour, Catherine
Galarneau, Anne
Renard, Gilbert
Fajula, François
Brunel, Daniel
Langellier, Christophe
Gilson, Jean-Pierre
Abstract
The invention relates to a method for reducing the content of polycyclic aromatic hydrocarbons (PAH) of a liquid medium, said PAH's optionally containing, in their cyclic structure, one or more heteroatoms selected among N, O and S, comprising: (a) placing the liquid medium in contact with at least one appropriate oxidizing agent in the presence of at least one hemoprotein selected among hemoglobins and myoglobins, immobilized on or in finely divided solid mineral particles having an average size determined by laser granulometry ranging from 5 nm to 1 mm, preferably from 10 nm to 100 쎽m, in reaction conditions that permit the oxidation of polycyclic aromatic hydrocarbons optionally sulfurated and/or nitrogenated and/or oxidized by the oxidizing agent, and; (b) the separation of the immobilized hemoprotein from the liquid medium.
C10G 27/10 - Refining of hydrocarbon oils, in the absence of hydrogen, by oxidation with oxygen or compounds generating oxygen in the presence of metal-containing organic complexes, e.g. chelates, or cationic ion-exchange resins
C10G 27/14 - Refining of hydrocarbon oils, in the absence of hydrogen, by oxidation with oxygen or compounds generating oxygen with ozone-containing gases
C02F 1/78 - Treatment of water, waste water, or sewage by oxidation with ozone
C02F 103/42 - Nature of the water, waste water, sewage or sludge to be treated from bathing facilities, e.g. swimming pools
18.
PARTICULATE MATERIALS AND METHOD OF OBTAINING THEREOF
The amount of small particles of aggregate in a mass of aggregate is reduced by causing a binder, for example bitumen, to contact the small particles and preferentially adhere to them, thereby causing groups of small particles to coalesce and thereby define larger particles . As a result, the amount of small particles in the mass is reduced thereby allowing the mass of material to be used in surface dressing of roads or in other applications. A plant for carrying out the method comprises an aggregate hopper (4) for containing aggregate, a feeder (6) for feeding aggregate into a mixing chamber (8) wherein aggregate is contacted with a bitumen emulsion, and a conveyer (10) for feeding material from the chamber (8) to a stockpile.
E01C 19/10 - Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resinsApparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
C08L 95/00 - Compositions of bituminous materials, e.g. asphalt, tar or pitch
patents
