Abstract: The invention concerns a fluid distribution device (1) comprising: at least one inlet tube (2) comprising openings (7) and having a first and a second end (3, 4); a cap (5) comprising a principal body (6) with a lenticular shape and with a circular section elongated by a skirt (8) extending in the direction of the second end (4) towards the first end (3) of the inlet tube (2), said cap (5) having an outer surface and an inner surface, the cap being integral with the second end (4) of the tube via the inner surface and the principal body (6) being provided with a plurality of holes (10); and in which the cap (5) comprises at least one deflection means (14) disposed on its outer surface and configured to direct or maintain the gas towards or at the periphery of said cap (5).

Abstract: The invention concerns a fluid distribution device (1) comprising: at least one inlet tube (2) comprising openings (7) and having a first and a second end (3, 4); a cap (5) comprising a principal body (6) with a lenticular shape and with a circular section elongated by a skirt (8) extending in the direction of the second end (4) towards the first end (3) of the inlet tube (2), said cap (5) having an outer surface and an inner surface, the cap being integral with the second end (4) of the tube via the inner surface and the principal body (6) being provided with a plurality of holes (10); and in which the cap (5) comprises at least one deflection means (14) disposed on its outer surface and configured to direct or maintain the gas towards or at the periphery of said cap (5).

Abstract: A method and apparatus for capturing a chemical compound, typically an impurity, and for accumulating said chemical compound on a capture mass CAPT included in at least one removable adsorbent cartridge MC over a period exceeding 2 days, with a view to the external chemical analysis thereof. The apparatus ST suitable for capturing at least one chemical compound in a fluid flow for its detection and/or quantification comprise, downstream of said cartridge or cartridges, at least one device for measuring the cumulative flow which has traversed the cartridge or cartridges over a set time period. In a preferred variation of the invention, the capture mass CAPT is fragmented into a plurality of elementary masses CAPTi which allows for the spread of an irreversible adsorption front or the displacement of a chromatographic zone.

Abstract: For testing performance levels and/ or changes over time of at least one catalyst (CAT) for a fixed-bed reactor: a device (CT) for a test, comprising at least one hollow metal cartridge (MC) containing the catalyst (CAT) is connected at a point A of an industrial chemical installation containing a reaction feedstock suitable for testing the catalyst (CAT); a liquid stream containing a fraction that is less than or equal to 1% of preheated reagents circulating in the industrial chemical installation is circulated in the cartridge (MC) through the catalyst (CAT) and sampled at a reaction temperature for a period (T), and returned to the industrial chemical installation at point B downstream of the device.

Abstract: The invention relates to a process for testing performance levels and/or changes over time of at least one catalyst CAT for a fixed-bed reactor comprising at least the following stages: A device for a CT test, comprising at least one hollow metal cartridge MC that contains in particular the catalyst CAT, is connected at a point A of an industrial chemical installation that uses a reaction feedstock that is suitable for testing the catalyst CAT, At point A, a liquid stream that consists of a fraction that is less than or equal to 1% of the preheated reagents circulating in the industrial chemical installation that is circulated in the cartridge MC through the catalyst CAT is sampled at a reaction temperature for a period T, At least a fraction of the effluent of the cartridge MC is sampled for chemical analysis, Optionally, the device for the CT test of the industrial chemical installation is isolated without stopping its operation, and at least a fraction of the catalyst CAT is sampled for physical and/or

Abstract: The invention concerns a method for capturing a chemical compound, typically an impurity, and for accumulating said chemical compound on a capture mass CAPT included in at least one removable adsorbant cartridge MC over a long period exceeding 2 days, with a view to the external chemical analysis thereof. The invention also concerns an apparatus ST suitable for capturing at least one chemical compound in a fluid flow for its detection and/or quantification comprising, downstream of said cartridge or cartridges, at least one means for measuring the cumulative flow which has traversed said cartridge or cartridges over a set time period. In a preferred variation of the invention, the capture mass CAPT is fragmented into a plurality of elementary masses CAPTi which allowing the spread of an irreversible adsorption front or the displacement of a chromatographic zone to be determined.

Abstract: The invention relates to a process for hydroconversion in a reaction zone (preferably in a bubbling bed and/or in slurry) of liquid heavy hydrocarbon feedstocks containing sulphur, in the presence of hydrogen and a catalytic solid phase, said solid phase being obtained from a catalytic precursor, a process in which the catalytic precursor is injected into a part of the liquid conversion products which contain dissolved hydrogen sulphide, asphaltenes and/or resins, under temperature and pressure conditions close to those at which they leave the reaction zone, and the obtained mixture is injected into the reaction zone. Preferably, the catalytic precursor is injected into the part of the conversion effluents that is recycled to the reactor inlet. The invention also relates to a device that can be used for implementing this process.