Patent EP0269171A2 successfully refreshed from Google Patents.
EP0269171A2
Expired / Lapsed
EP
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Reactor for exothermic and endothermic catalytic reactions
Assignee: Shell Internationale Research Maatschappij BV
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Filing: 1987-11-10
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Granted: —
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Expires: 2007-11-10
Abstract
Abstract A reactor suitable for exothermic and endothermic catalytic reactions comprising: (a) a closed reactor shell; (b) within the reactor shell two coaxial essentially vertical cylinders, whose walls have a plurality of openings of sufficiently small dimensions so as to retain catalyst in the space between the cylinders, whilst allowing passage of process fluid; (c) heat transfer means consisting of one or more tubes extending in the catalyst space, through which heat transfer fluid can be passed; (d) one or more inlet ports for reactants and one or more outlet ports for reactor effluent, so positioned as to make the reactants pass substantially in a radial direction through the catalyst space. The reactor shell is further provided with catalyst inlet and outlet means in communication with the upper and lower ends of the catalyst space respectively, thus enabling the catalyst to move continuously through the catalyst space during operation of the reactor.
Inventors
- 👤 Swan Tiong Sie
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 14:50
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/08; B01J8/085; B01J8/02; B01J8/0207; B01J8/0214; B01J8/087; B01J8/12; C; C10; C10G; C10G35/00; C10G35/04; C10G35/10; C10G35/12; B01J2208/00; B01J2208/00008; B01J2208/00017; B01J2208/00106; B01J2208/00115; B01J2208/00132
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
159 words
A reactor suitable for exothermic and endothermic catalytic reactions comprising: (a) a closed reactor shell; (b) within said reactor shell two coaxial essentially vertical cylinders enclosing a catalyst space, the walls of said cylinders having a plurality of openings of sufficiently small dimensions so as to retain the catalyst in said space, whilst allowing passage of process fluid; (c) heat transfer means consisting of one or more tubes extending in the catalyst space, through which heat transfer fluid can be passed; (d) one or more inlet ports for reactants and one or more outlet ports for reactor effluent, so positioned as to make the reactants pass substantially in a radial direction through the catalyst space; characterized in that the reactor shell is further provided with catalyst inlet and outlet means in communication with the upper and lower ends of the catalyst space respectively, thus enabling the catalyst to move continuously through said catalyst space during operation of the reactor.
Claim 2
Dependent Claim
159 words
A reactor suitable for exothermic and endothermic catalytic reactions comprising: (a) a closed reactor shell; (b) within said reactor shell two coaxial essentially vertical cylinders enclosing a catalyst space, the walls of said cylinders having a plurality of openings of sufficiently small dimensions so as to retain the catalyst in said space, whilst allowing passage of process fluid; (c) heat transfer means consisting of one or more tubes extending in the catalyst space, through which heat transfer fluid can be passed; (d) one or more inlet ports for reactants and one or more outlet ports for reactor effluent, so positioned as to make the reactants pass substantially in a radial direction through the catalyst space; characterized in that the reactor shell is further provided with catalyst inlet and outlet means in communication with the upper and lower ends of the catalyst space respectively, thus enabling the catalyst to move continuously through said catalyst space during operation of the reactor.
Claim 3
Dependent Claim
52 words
The reactor as claimed in claim 1, characterized in that the catalyst inlet means comprise catalyst distribution means consisting of a number of sloping tubes which branch off from the catalyst inlet of the reactor, which tubes lead the catalyst to different parts of the upper cross section of the catalyst space.
Claim 4
Dependent Claim
47 words
The reactor as claimed in any one of claims 1-2, characterized in that the catalyst outlet means comprise catalyst collection means consisting of one or more conical scoops optionally combined with a number of tubes and a collection vessel positioned near the bottom of the catalyst space.
Claim 5
Dependent Claim
74 words
The reactor as claimed in any one of claims 1-3, characterized in that the heat transfer means consist of one or more coaxial pairs of an inner and an outer tube, which at their one end are connected to a heat transfer fluid inlet and outlet respectively, while at their other end the outer tube is closed and the inner tube is open and remains clear of the closed end of the outer tube.
Claim 6
Dependent Claim
53 words
The reactor as claimed in any one of claims 1-4, characterized in that the catalyst inlet means comprise one or more vessels for temporary storage of portions of catalyst, which vessels are provided with valves at their inlet and outlet to overcome the pressure differential between the catalyst entry point and the reactor.
Claim 7
Dependent Claim
53 words
The reactor as claimed in any one of claims 1-5, characterized in that the catalyst outlet means comprise one or more vessels for temporary storage of portions of catalyst, which vessels are provided with valves at their inlet and outlet to overcome the pressure differential between the reactor and the catalyst exit point.
Claim 8
Dependent Claim
27 words
The reactor as claimed in any one of claims 1-6, characterized in that the inlet and outlet valves at the catalyst inlet and/or outlet are automatically controlled.
References Cited (Backward Citations)
No citation records indexed.
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