EP0222436A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Apparatus and process for separating fluid cracking catalyst particles from flue gas
Assignee: Shell Internationale Research Maatschappij BV
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Filing: 1986-10-17
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Granted: —
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Expires: 2006-10-17
Abstract
Abstract Apparatus suitable for solids-fluid separation (e.g. cracking catalyst/flue gas) comprising a housing (1) provided with outside first stage separation means (6) comprising feed inlet means (2) which cooperate substantially tangentially with a hollow body (16) having solids outlet means (4) in the lower section and fluid outlet means (3) in the upper section communicating with a plurality of annular inlet means of second stage separation means (7) inside the housing, which annular inlet means are provided with swirl imparting means (20) and are defined between the upper sections (11) of a plurality of tubular elements (12) and tubular fluid outlet means (15) of which the lower sections are arranged substantially co-axially within said upper sections and of which tubular fluid outlet means the upper sections cooperate with opening(s) in the upper section of the housing, and solids outlet means cooperating with the lower sections of the tubular elements. The invention further relates to a process for separating fluid cracking catalyst particles from flue gases and/or hydrocarbon conversion products using said apparatus.
Inventors
- 👤 René Rombout
- 👤 Jouke Jan Woudstra
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-27 15:35
CPC Classifications
B; B04; B04C; B04C5/00; B04C5/24; B01; B01D; B01D45/00; B01D45/12; B01J; B01J8/00; B01J8/005
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
134 words
Apparatus suitable for solids-fluid separation which comprises a housing provided with outside first stage separation means comprising feed inlet means which cooperate substantially tangentially with a hollow body having solids outlet means in the lower section and fluid outlet means in the upper section communicating with a plurality of annular inlet means of second stage separation means inside the housing, which annular inlet means are provided with swirl imparting means and are defined between the upper sections of a plurality of tubular elements and tubular fluid outlet means of which the lower sections are arranged substantially co-axially within said upper sections and of which tubular fluid outlet means the upper sections cooperate with opening(s) in the upper section of the housing, and solids outlet means cooperating with the lower sections of the tubular elements.
Claim 2
Dependent Claim
134 words
Apparatus suitable for solids-fluid separation which comprises a housing provided with outside first stage separation means comprising feed inlet means which cooperate substantially tangentially with a hollow body having solids outlet means in the lower section and fluid outlet means in the upper section communicating with a plurality of annular inlet means of second stage separation means inside the housing, which annular inlet means are provided with swirl imparting means and are defined between the upper sections of a plurality of tubular elements and tubular fluid outlet means of which the lower sections are arranged substantially co-axially within said upper sections and of which tubular fluid outlet means the upper sections cooperate with opening(s) in the upper section of the housing, and solids outlet means cooperating with the lower sections of the tubular elements.
Claim 3
Dependent Claim
22 words
Apparatus according to claim 1 wherein a plurality of first stage separation means are laterally spaced around the second stage separation means.
Claim 4
Dependent Claim
53 words
Apparatus according to claim 1 or 2 wherein a plurality of first stage fluid outlet means cooperate with a second stage inlet chamber having a lower wall wherein the upper sections of the tubular elements are arranged and an upper wall wherein the upper sections of the tubular fluid outlet means are arranged.
Claim 5
Dependent Claim
23 words
Apparatus according to claim 3 wherein the vertical distance between the lower and the upper wall is substantially equal at any given point.
Claim 6
Dependent Claim
23 words
Apparatus according to any of claims 2-4 wherein a plurality of first stage fluid outlet means are arranged substantially radially and directed inward.
Claim 7
Dependent Claim
24 words
Apparatus according to any of the preceding claims wherein the first stage separation means comprise a cyclone having a substantially vertically arranged cylindrical body.
Claim 8
Dependent Claim
17 words
Apparatus according to any of the preceding claims wherein the apparatus is arranged in a secondary housing.
Claim 9
Dependent Claim
27 words
Apparatus according to any of the preceding claims wherein the first and second stage solids outlet means are in communication with separate sections of the secondary housing.
Claim 10
Dependent Claim
22 words
Apparatus according to any of the preceding claims wherein vortex stabilizer means are arranged in the lower sections of the tubular elements.
Claim 11
Dependent Claim
23 words
Apparatus according to any of the preceding claims wherein the length:diameter ratio of a tubular element is from 1-10, and preferably from 2-5.
Claim 12
Dependent Claim
31 words
Apparatus according to any of the preceding claims wherein the ratio of the diameters of the tubular elements and the tubular fluid outlet means is from 1.2-4, and preferably from 1.5-2.5.
Claim 13
Dependent Claim
24 words
Apparatus according the any of the preceding claims wherein the diameter of the tubular elements is from 0.05-1 m, and preferably from 0.1-0.8 m.
Claim 14
Dependent Claim
145 words
Process for separating solid particles from fluid which comprises passing a mixture of solid particles and fluid tangentially into a first separation zone wherein the mixture is subjected to a rotating movement, removing solid particles through an opening in the lower section of said first zone and passing solids-containing fluid through the upper section of the first zone substantially downwardly into annular spaces of a second separation zone, which annular spaces are provided with swirl imparting means and are defined between the upper sections of tubular elements and the lower sections of tubular fluid outlet means arranged substantially co-axially within said upper sections, imparting a helical movement to the solids-containing fluid in the tubular elements to separate remaining solids from fluid, removing solids through the lower sections of the tubular elements and removing fluid upwardly through the upper sections of the tubular fluid outlet means.
Claim 15
Dependent Claim
145 words
Process for separating solid particles from fluid which comprises passing a mixture of solid particles and fluid tangentially into a first separation zone wherein the mixture is subjected to a rotating movement, removing solid particles through an opening in the lower section of said first zone and passing solids-containing fluid through the upper section of the first zone substantially downwardly into annular spaces of a second separation zone, which annular spaces are provided with swirl imparting means and are defined between the upper sections of tubular elements and the lower sections of tubular fluid outlet means arranged substantially co-axially within said upper sections, imparting a helical movement to the solids-containing fluid in the tubular elements to separate remaining solids from fluid, removing solids through the lower sections of the tubular elements and removing fluid upwardly through the upper sections of the tubular fluid outlet means.
Claim 16
Dependent Claim
15 words
Process according to claim 14 wherein fluid cracking catalyst particles are separated from flue gas.
References Cited (Backward Citations)
No citation records indexed.
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