Supplying a dispensing device for loading a refinery and/or petrochemical reactor with solid particles

{
  "publication_number": "US10029225B2",
  "country": "US",
  "kind": "B2",
  "title": "Supplying a dispensing device for loading a refinery and/or petrochemical reactor with solid particles",
  "abstract": "An assembly for loading a refinery and/or petrochemical reactor (100) with solid particles, comprising a dispensing device (110) for loading the reactor with solid particles in a relatively uniform manner, a system (200) for supplying the dispensing device, comprising a flexible sleeve (140) connected to a solid particle tank (130) and to the dispensing device, and a control system (300) comprising a blocking device (310) for blocking the particles flowing in the flexible sleeve, adjacent to a portion (141) of the flexible sleeve and capable, when activated, of moving the walls of the flexible sleeve in such a way as to reduce a cross section of said sleeve at said portion, and an actuating device (350) for actuating the blocking device located at a distance from the blocking device.",
  "claims": [
    "1. A system comprising a refining and/or petrochemical reactor and an assembly for loading the refining and/or petrochemical reactor with solid particles, the assembly comprising a dispensing device for loading the reactor with solid particles, said device being arranged such as to homogenize and/or make uniform the loading of solid particles into the reactor, a system for supplying the dispensing device, said supply system comprising a flexible sleeve intended to be connected to a solid particle reserve firstly, and to the dispensing device secondly, wherein the solid particles can flow, generally from the top to the bottom, a system for controlling the supply system, comprising: a device for blocking the particles flowing in the flexible sleeve, which device is adjacent to a portion of the flexible sleeve and suitable for, when activated, moving walls of the flexible sleeve such as to reduce an effective cross-section of said sleeve at said portion, and a device for actuating the blocking device located remotely from the blocking device.",
    "2. The system as claimed in claim 1, wherein the blocking device is arranged such as to urge the walls of the flexible sleeve against a rigid or semi-rigid pipe through which said flexible sleeve passes at the portion adjacent to the blocking device.",
    "3. The system as claimed in claim 1, wherein the blocking device includes a balloon element pneumatically connected to a gas supply pipe.",
    "4. The system as claimed in claim 3, wherein the balloon element is adapted to be connected to a pneumatic network by means of a single pipe.",
    "5. The system as claimed in claim 3, wherein the balloon element comprises two planar parts made from flexible material, which are connected to one another in a sealed manner.",
    "6. The system as claimed in claim 1, wherein the dispensing device comprises distributing means suitable for giving the solid particles a speed with a component perpendicular to the vertical direction.",
    "7. The system as claimed in claim 6, wherein the distribution means comprise blades and a motor to rotate these blades about a vertical axis.",
    "8. A method of managing loading of a refining and/or petrochemical reactor with catalyst particles and/or inert beads, comprising installing the assembly as claimed in claim 1 in the refining and/or petrochemical reactor.",
    "9. The system as claimed in claim 1, wherein the reactor has an opening for the loading.",
    "10. The system as claimed in claim 9, wherein the dispensing device is placed through this opening into the reactor and loads with a rain effect the reactor with solid particles comprising catalyst particles and/or inert beads.",
    "11. The system as claimed in claim 1, wherein the actuating device is located at a distance from the blocking device that is greater than or equal to the radius of the base of the reactor."
  ],
  "description_excerpt": "The invention relates to supplying a dispensing device for loading a refining and/or petrochemical reactor with solid particles.\n\nIt is known to load reactors of this type with solid particles in the divided state. These particles can, for example, be in the form of beads, grains, cylinders, pellets, rods, or any other form and generally have relatively small dimensions, for example in the centimeter range.\n\nThe particles can be, in particular, solid catalyst grains, which are generally extruded, produced either in regular form, or in the form of mono-lobe or multi-lobe rods, the dimensions which can vary, from case to case, from a few tenths of a millimeter to a few centimeters. It is to this use, called “dense loading”, of grains of catalysts in a refining and/or petrochemical reactor, that reference will be made more particularly in the remainder of the present description, but the device described can more generally be used in the context of loading solid particles into a reactor.\n\n“Dense loading” means optimized rain effect loading in order to allow loading, in a minimum amount of time, of a maximum amount of solid particles in a manner that is homogenous and the most uniform possible.\n\nThe document WO 2010/076522, in the name of the Applicant, describes an example of a device for dispensing solid particles into a reactor. This dispensing device is fitted in a reactor filling opening located at the top of the reactor and in the center of the reactor.",
  "cpc": [
    "B01J 8/003",
    "B01J 2208/00752",
    "B01J 2208/00778",
    "B01J 8/002",
    "B01J 8/0035",
    "B65B 1/06"
  ],
  "ipc": [
    "B01J 8/00",
    "B65B 1/06"
  ],
  "assignees": [
    "Total Raffinage Chimie SAS"
  ],
  "inventors": [
    "Julien Mairesse",
    "Guillaume Berric",
    "Xavier BOCE"
  ],
  "filing_date": "2014-05-20",
  "publication_date": "2018-07-24",
  "grant_date": "2018-07-24",
  "priority_date": "2013-05-30",
  "application_number": "US-201414786759-A",
  "family_id": "48782528",
  "cited_by_count": 1,
  "citations": [
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    "JPH0385768A",
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    "EP1041022A1",
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  ]
}