US3784361A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Converter for high pressure synthesis
Assignee: KRALONOPOLSKA STROJIRNA NP CS
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Filing: 1971-06-24
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Granted: 1974-01-08
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Expires: 1991-06-24
Abstract
Abstract A converter for high-pressure synthesis of ammonia or methanol having an upright outer pressure shell consisting of a cylindrical middle body and two hemisphere-like heads, a thin walled conforming liner in the shell, an upright conduit axially centered in the shell which extends along the whole length of the cylindrical middle body, from a built in grating in the lower hemisphere like head close to a manhole atop the upper head, the manhole being just large enough for insertion of the conduit therethrough. A body of particulate catalyst material fills the annular space between the liner and the conduit and extends from the grating almost to the top end of the conduit. Cooling means are axially spaced through the bed. An electric heater and a shell and tube heat exchanger are arranged one above the other in the conduit, both adapted for preheating of the main portion of the gaseous reactants before the reactants enter the catalyst body. The remainder of the reactants is injected into the catalyst body through the cooling means which comprise at least one system of gas permeable coffers extending radially over the entire flow section of the catalyst bed.
Inventors
- 👤 J Kubec
- 👤 V Saroch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:55
CPC Classifications
C; C07; C07C; C07C29/00; C07C29/15; C07C29/151; C07C29/152; B; B01; B01J; B01J8/00; B01J8/0005; B01J8/02; B01J8/04; B01J8/0446; B01J8/0461; B01J8/0469; B01J8/0492; B01J8/0496; C01; C01C; C01C1/00; C01C1/02; C01C1/04; C01C1/0405; C01C1/0417; B01J2208/00; B01J2208/00008; B01J2208/00017; B01J2208/00106; B01J2208/00168; B01J2208/00194; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/52
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
72 words
The converter as set forth in claim 1, wherein said means for delivering said cooling media comprises at least one annular member arranged axially within said shell to divide said anNular chamber and to provide a floor for supporting the catalyst lying above it, at least one said member being permeable to gas flow and providing means for allowing said catalyst to pass from one end of said shell to the other.
Claim 2
Dependent Claim
66 words
The converter according to claim 1 including a heater interposed within said conduit in axial alignment with said heat exchanger between said heat exchanger and said annular chamber, the tubes of said heat exchanger opening into said heater, said heater forming a conduit channel for passing said material to be synthesized into said annular chamber, and for providing extra heat to said material to be synthesized.
Claim 3
Dependent Claim
13 words
The converter according to claim 3, wherein said heater is an electric heater.
Claim 4
Dependent Claim
55 words
The converter as set forth in claim 1 wherein the liner has a heat resistant coating on its inner surface and a thin walled casing conforming to the inner surface of said liner and said casing disposed over said coating, and consisting of a plurality of sheet elements adapted to be dismounted and removed separately.
Claim 5
Dependent Claim
127 words
The converter as set forth in claim 2 wherein at least one said annular catalyst support member comprises a plurality of elements extending radially with respect to the conduit and spaced from each other over substantially the entire cross section of said annular chamber, outer and inner bearing rings supporting said elements, said outer bearing ring located adjacent the inner wall of the casing, said inner bearing ring adjoining the exterior wall of said conduit, said outer bearing ring being removably supported on support means carried by the liner, at least one of said support rings being hollow and adapted to receive and distribute gaseous reactants to said catalyst bed and a supply tube terminating in said one hollow ring connected to a source of cooled reactant.
Claim 6
Dependent Claim
20 words
The converter as set forth in claim 6 wherein each of said elements are removably secured to said bearing rings.
Claim 7
Dependent Claim
38 words
The converter as set forth in claim 2 wherein each of elements have a bent upper portion and flat lower portions defining a hollow space therebetween wherein said cooled reactants may mix with the material to be synthesized.
Claim 8
Dependent Claim
30 words
The converter as set forth in claim 8 wherein each element includes a perforated tube connected to said hollow ring and projecting radially into the hollow space of said elements.
Claim 9
Dependent Claim
229 words
In a converter for high pressure synthesis having a pressure resistant elongated cylindrical shell enclosed at both ends, a support grating located within said cylindrical shell adjacent one end, a conduit of substantially uniform cross section axially located in said shell and extending from said grating along a portion of the length of said cylindrical shell to form a continuous annular chamber with said shell, a catalyst provided in said chamber and supported by said grating, and means for feeding material to be synthesized through said conduit into said annular chamber and means for withdrawing the synthesized material from said annular chamber through said grating, and means for delivering a stream of reactant media to said catalyst, the improvement comprising means for supporting said catalyst comprising an annulus having an inner diameter substantially equal to the outer diameter of said conduit and an outer diameter substantially equal to the inner diameter of said wall, said support means being arranged substantially in a plane transverse to the axis of the conduit and spaced from said grating to form a floor for the portion of said catalyst lying above it, and means for delivering a cooling reactant media to said supporting means, said supporting means being perforated to be permeable to the material to be synthesized and provided with openings to permit flow of cooling reactant media therethrough into said catalyst.
Claim 10
Dependent Claim
114 words
The converter according to claim 10 wherein said catalyst supporting means comprises a hollow tubular bearing ring connected to a source of reactant, said ring being secured to the inner wAll of said shell and a plurality of perforated panels secured to said ring and extending radially inward toward said conduit, each of said panels having a slanted upper surface for supporting said catalyst and a bottom surface spaced therefrom to form a hollow interior space within each panel, said panels being spaced from each other circularly about said conduit, and having a perforated tube extending from said bearing ring along the radial length of said panel to discharge said reactant into said catalyst.
Claim 11
Dependent Claim
49 words
The converter according to claim 11, including an inner bearing ring for supporting the panels on said conduit, said inner bearing ring being hollow and perforated along its periphery and being connected to each of said radial perforated tubes extending from said bearing ring secured to the inner wall.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-07 | 1977-07-09 | 1978-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-07 | 1981-07-09 | 1982-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-07 | 1985-07-09 | 1986-01-08 | $7700.00 | Window Closed / Lapsed |