GB868043A - Distributing gas to fluidized beds - Google Patents
Distributing gas to fluidized bedsInfo
- Publication number
- GB868043A GB868043A GB18366/59A GB1836659A GB868043A GB 868043 A GB868043 A GB 868043A GB 18366/59 A GB18366/59 A GB 18366/59A GB 1836659 A GB1836659 A GB 1836659A GB 868043 A GB868043 A GB 868043A
- Authority
- GB
- United Kingdom
- Prior art keywords
- nozzles
- gas
- catalyst
- inlet
- nozzle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
- B01J8/24—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique
- B01J8/44—Fluidisation grids
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
An apparatus for distributing fluidising gas to a vessel (32) comprises two concentric downwardly pointing cone members (22, 24), spaced apart and sealed at their peripheries, the upper member (24) being provided with <PICT:0868043/III/1> <PICT:0868043/III/2> nozzles (36) and the lower member (22) being imperforate and provided at the apex with an inlet (16) for fluidising gas. The numerals relate to the embodiment illustrated in Figs. 2 and 3 to be used for catalytically hydroforming naphthas which shows the apparatus in position in a generally cylindrical reactor 32 having an aperture in the bottom through which the inlet 16 for naphtha enters and to which the distributer is attached by means of annulus 92 which takes up any displacement due to expansion. The space between the lower cone and the bottom may be filled with insulation. The nozzles 36 are arranged to lie on concentric circles and a central nozzle 74 is provided. The nozzles are provided with orifice plates which supply an amount of gas corresponding the position of the nozzle: in an example the nozzle 74 had an orifice diameter of 0.934 inch and succeeding rows B, C, D had diameters of 0.915, 0.905 and 0.900 inches respectively. A second, valved, inlet 35 is provided for the introduction of hydrogen, mixing takes place in the central zone 73 and the mixed gases are conducted by baffles 68 to the nozzles. A well 54 is provided for withdrawal of the catalyst: a stripping gas may be introduced through one or more lines 62 and a fluidising gas through one or more line 64. In an alternative construction, pipe rings are embedded in the upper cone and have slots or holes in place of the nozzles, and in the lower surfaces of the pipes, between the cones, holes of suitable size are provided in order to maintain an equal gas flow through the upper holes. Radial ribs between the upper and lower cones may be provided. For hydroforming, catalysts such as oxides of molybdenum (5-15%), chromium, tungsten or vanadium, or platinum (0.1-5%) supported on alumina, silica-alumina, or zinc aluminate spinel may be used at 850-1000 DEG F. and 50-500 p.s.i.g. and regenerated at 1050-1200 DEG F. and the same pressure. The catalyst may have a particle size up to 150 microns. The catalyst to oil ratio may be 0.5-5.0 and the superficial gas velocity 0.6-1.2 ft./sec. A suitable feed comprises virgin or cracked naphtha of B.P. 125-450 DEG F. preheated to above 800 DEG F. together with 3000-10,000 cu. ft. of hydrogen preheated to 1050-1200 DEG F. per barrel of naphtha. The apparatus may also be used for catalytic cracking, hydrogenation and isomerisation, and for desulphurisation, adsorption and partial oxidation of hydrocarbons.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US868043XA | 1958-08-05 | 1958-08-05 | |
US753287A US3053642A (en) | 1958-08-05 | 1958-08-05 | Distributing gas to fluidized beds |
Publications (1)
Publication Number | Publication Date |
---|---|
GB868043A true GB868043A (en) | 1961-05-17 |
Family
ID=26775164
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB18366/59A Expired GB868043A (en) | 1958-08-05 | 1959-05-29 | Distributing gas to fluidized beds |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB868043A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140121438A1 (en) * | 2012-10-29 | 2014-05-01 | Research Institute Of Petroleum Processing, Sinopec | Adsorption Desulfurization Process for Hydrocarbons and a Reaction Apparatus Therefor |
CN103785550A (en) * | 2012-10-29 | 2014-05-14 | 中国石油化工股份有限公司 | Pneumatic particle separator, and fluidized bed reactor and its application |
WO2016181238A1 (en) * | 2015-05-13 | 2016-11-17 | Nova Chemicals (International) S.A. | A bed plate with supporting grid for a fluidized bed reactor and its modeling |
-
1959
- 1959-05-29 GB GB18366/59A patent/GB868043A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140121438A1 (en) * | 2012-10-29 | 2014-05-01 | Research Institute Of Petroleum Processing, Sinopec | Adsorption Desulfurization Process for Hydrocarbons and a Reaction Apparatus Therefor |
CN103785550A (en) * | 2012-10-29 | 2014-05-14 | 中国石油化工股份有限公司 | Pneumatic particle separator, and fluidized bed reactor and its application |
US9512052B2 (en) * | 2012-10-29 | 2016-12-06 | China Petroleum & Chemical Corporation | Adsorption desulfurization process for hydrocarbons and a reaction apparatus therefor |
RU2635560C2 (en) * | 2012-10-29 | 2017-11-14 | Чайна Петролеум Энд Кемикал Корпорейшн | Method of adsorption desulfurization of hydrocarbons and reactor apparatus for its implementation |
WO2016181238A1 (en) * | 2015-05-13 | 2016-11-17 | Nova Chemicals (International) S.A. | A bed plate with supporting grid for a fluidized bed reactor and its modeling |
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GB868043A (en) | Distributing gas to fluidized beds |