US3732080A - Panel-shaped catalytic element with fastening means - Google Patents

Panel-shaped catalytic element with fastening means Download PDF

Info

Publication number: US3732080A
Authority: US; United States
Prior art keywords: side walls; frame; catalytic element; flanges; gasket
Prior art date: 1970-03-12
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 - Lifetime

Application number

US00120030A

Other languages

English (en)

Inventor

J Klepitko

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Individual

Original Assignee

Individual

Priority date (The priority date 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 date listed.)

1970-03-12

Filing date

1971-03-01

Publication date

1973-05-08

1971-03-01 Application filed by Individual filed Critical Individual

1973-05-08 Application granted granted Critical

1973-05-08 Publication of US3732080A publication Critical patent/US3732080A/en

1990-05-08 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

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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
- B01J8/008—Details of the reactor or of the particulate material; Processes to increase or to retard the rate of reaction
- 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
- B01J8/02—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds
- B01J8/0242—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds the fluid flow within the bed being predominantly vertical
- B01J8/025—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds the fluid flow within the bed being predominantly vertical in a cylindrical shaped bed
- 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
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00796—Details of the reactor or of the particulate material
- B01J2208/00805—Details of the particulate material
- B01J2208/00814—Details of the particulate material the particulate material being provides in prefilled containers

Definitions

ABSTRACT [30]- Fdreign Appncafion Priority Data Panel type catalyst elements with peripheral flanges that provide a U-shape profile to hold a gasket Mar. 12, I970 Germany ..G 70 09 055.0 member provide f easier and i d clamped tachment to spaced supporting frame members.
U.S. Cl 23/288 F, 23/288 R [51] Int. Cl ..B0lj 9/04, FOln 3/14 4 Claims, 1 Drawing Figure [58] Field of Search ..23/288 R, 288 F,
Known catalysts are encased in panel-shaped casings which either peripherally grasp the catalyst exterior or form a rectangular box having perforations particularly in the upper and lower panel surfaces.
the box is filled with the catalytic material.
the envelope for the catalyst may consist also of wire network which at the sides turns into frames.
catalytic elements are fastened within a gas purification system, for example in one plane in such manner that the entire waste gas stream must pass through the catalytic elements.
the edges of the catalytic elements are laid on the frame struts.
a sealing gasket between the frame and the catalytic element.
the sealing strips or ropes are riveted along the frame struts on the support surfaces.
the tension clasps are pressed from above onto the catalytic elements which transmit the pressure to the gasket fixed below between the catalytic element and the frame struts.
the known arrangement has as one of its disadvantages, the result that the tension bolts are of appreciable length.
the length is required because they have to project beyond the entire height of the catalytic elements. Otherwise the screwing tight of the tension clamps over the catalytic elements would not be possible.
Upon tightening and tensioning it happens not infrequently that the long threaded bolts tear off.
the tearing off of the long threaded bolts moreover, is caused, on the one hand, in that due to very high temperatures, for example 600 to 700 C. the tensile strength values drop strongly, and on the other hand an oxidation of the metal occurs.
Another disadvantage of the known devices is that a sufficient sealing effect of the fastening device is not always attained, particularly when the catalytic elements already have been replaced once or several times.
a renewal of the sealing strips becomes necessary as this has to be done inside the unit by removal of the rivets of the old gasket and installation of new rivets for the new gasket.
each catalyst element has flanges on at least two opposite side walls and the sealing gasket is attached at the flange sides facing toward the frame.
the gasket now is fastened directly to the catalytic element.
the latter only need to be laid on the frame and then fastened.
the flange at the side walls of the catalytic element may extend along the upper or the lower edge or also at any desired plane therebetween. Also an absolute gas tightness is obtained. The irnpute waste gas no longer can bypass around the catalyst to the exterior by channels in the gasket areas.
the upper cover portion of the catalytic element extends beyond the side walls, is crimped at the edge toward the side wall and parallel with the latter and forms together with the upper portion of the side wall a U-shaped flange into which the gasket is squeezed.
the gasket consists of an asbestos/graphite cord or rope.
other high temperature stable materials may also be used.
the manufacture of such a catalytic element is simple, economical and stable. By the squeezing-in of the gasket during the manufacture, the installation is substantially facilitated.
the fastening device that is the threaded bolt or the screw can be made substantially shorter than in the case of the previously known devices.
the installation and dismounting are very simple and require little time. On tightening the nut or the threaded belt, or other screw member during the installation, the danger of tearing off no longer exists because the bolt or screw, respectively, is substantially shorter than in the case of the known arrangements.
a cap screw or bolt which either is screwed through the support, or is thrust through and welded tight orlocked with a nut, or one may use a cap screw which is screwed into a threading provided in the support.
the flange consist of a ring affixed to the side walls and having an L- or U-shaped profile.
Such ring may be arranged around the side walls in any desired plane and fastened thereto, for example by welding.
the catalyst shape is not limited to rectangles; also round, many-comered or circular segment catalysts may be inserted.
FIG. 1 shows a crosssection through a portion of the frame provided with fastening devices, the catalytic element being shown fragmentally.
a frame strut 3 is welded to the container wall 1.
an additional fastening device together with the frame strut 4 is shown.
the struts of the frame have legs disposed vertically relative to each other. They may, however, be arranged relative to each other in another manner. corresponding to another shape of the catalyst.
threaded studs on bolts 5 are attached to the frame by welding.
a nut 6 is screwed onto the upper part of such bolt.
the catalytic element 7 consists of an envelope with a bottom portion 8, side walls 9, and an upper cover portion 10.
the side wall 9 is crimped outwardly at its upper part. Beyond this stretch there extends the upper cover portion 10 which likewise is crimped at the outer edge. Thereby a U-shaped flange 1 1 is formed together with the upper portion of the side wall.
An asbestos rope 12 is embedded therein as sealing gasket.
the frame struts 4 likewise are formed with a U- shape cross-section.
the frame strut 3 at the border, that is to say, the frame strut 3 welded to the vessel wall 1 has an L-profile.
the catalytic element 7 is placed on the frame.
the sealing gasket 12 is compressed by placing across each two adjacent catalytic elements a tension clasp 13 which by a centrally located perforation permits the upward penetration of the threaded bolt 5. By tightening the nut 6, the desired pressure on the gaskets 12 can be adjusted.
the tension clasp 14 at the left side of the drawing has an L-profile, the downwardly directed leg to the left of the bolt 5 forming the counter support portion to replace the missing U-shaped flange of another catalytic element.
a catalyst support means for use in a gas purification reaction container having a series of catalyst containing casings therein for gas flow therethrough, said support means including an edge frame member affixed to the inner wall of said container and extending inwardly therefrom, means to support each of said catalyst casings comprising outwardly projecting flanges on opposing side walls of each casing, a cover for each of said casings having a peripheral flange to overlap said projecting flanges, intermediate frame strut means positioned transversely of said reaction container and said edge frame member to support said casings, a sealing gasket between said projecting flanges and said intermediate frame strut means, a sealing gasket between the projecting flanges and said edge frame member, a spaced apart threaded bolt means with a nut extending perpendicularly from said edge frame member and each of said intermediate frame strut means, a transverse clamp member engaged by each of said bolt means, said transverse clamp members engaging said edge frame member and each of
gaskets consist of a graphiteasbestos sealing rope.

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Chemical Kinetics & Catalysis (AREA)
Physics & Mathematics (AREA)
Fluid Mechanics (AREA)
Exhaust Gas After Treatment (AREA)
Physical Or Chemical Processes And Apparatus (AREA)
Exhaust Gas Treatment By Means Of Catalyst (AREA)
Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)

US00120030A 1970-03-12 1971-03-01 Panel-shaped catalytic element with fastening means Expired - Lifetime US3732080A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE7009055U DE7009055U (de)	1970-03-12	1970-03-12	Plattenfoermiges katalysatorelement mit befestigungsvorrichtung.

Publications (1)

Publication Number	Publication Date
US3732080A true US3732080A (en)	1973-05-08

Family

ID=6610101

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
US00120030A Expired - Lifetime US3732080A (en)	1970-03-12	1971-03-01	Panel-shaped catalytic element with fastening means

Country Status (8)

Country	Link
US (1)	US3732080A (fr)
JP (1)	JPS5410547B1 (fr)
BE (1)	BE764154A (fr)
CA (1)	CA942212A (fr)
DE (1)	DE7009055U (fr)
FR (1)	FR2084423A5 (fr)
GB (1)	GB1334577A (fr)
NL (1)	NL7103183A (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4263259A (en) *	1979-05-21	1981-04-21	Regenerative Environmental Equipment Co., Inc.	Hatch and hatch cover for thermal regeneration apparatus
DE3512102A1 (de) *	1985-03-29	1986-10-09	Mannesmann AG, 4000 Düsseldorf	Tragrostboden fuer einen katalysatorkorb
US5409670A (en) *	1993-08-13	1995-04-25	Peerless Manufacturing Company	SCR reactor sealing mechanism
DE102011001366A1 (de) *	2011-03-17	2012-09-20	Thyssenkrupp Polysius Ag	Katalysator für die Rauchgasbehandlung in einer Anlage zur thermischen Behandlung mineralischer Grundstoffe
CN107511074A (zh) *	2017-10-12	2017-12-26	中国华电科工集团有限公司	用于烟气脱硝反应器内的催化剂模块固定装置及固定方法

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE3003027A1 (de) *	1980-01-29	1981-07-30	Vereinigte Glaswerke Gmbh, 5100 Aachen	Kraftuebertragende befestigung eines metallteiles an einer glasplatte
WO2007071925A1 (fr) *	2005-12-20	2007-06-28	Ineos Europe Limited	Support de catalyseur, dispositif le contenant et procede de reaction d’un hydrocarbure avec de l’oxygene
KR102442650B1 (ko) *	2021-01-28	2022-09-13	박준형	소각 및 연소로의 건식 반응 집진기 일체형 대형 scr 카트리지와 지지프레임 간 행잉 서포트 구조물

Citations (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3195988A (en) *	1962-05-11	1965-07-20	Pullman Inc	Catalyst holder

1970
- 1970-03-12 DE DE7009055U patent/DE7009055U/de not_active Expired
1971
- 1971-03-01 US US00120030A patent/US3732080A/en not_active Expired - Lifetime
- 1971-03-10 FR FR7108271A patent/FR2084423A5/fr not_active Expired
- 1971-03-10 NL NL7103183A patent/NL7103183A/xx not_active Application Discontinuation
- 1971-03-12 CA CA107,613A patent/CA942212A/en not_active Expired
- 1971-03-12 JP JP1317371A patent/JPS5410547B1/ja active Pending
- 1971-03-12 BE BE764154A patent/BE764154A/fr not_active IP Right Cessation
- 1971-04-19 GB GB2402471*A patent/GB1334577A/en not_active Expired

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3195988A (en) *	1962-05-11	1965-07-20	Pullman Inc	Catalyst holder

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4263259A (en) *	1979-05-21	1981-04-21	Regenerative Environmental Equipment Co., Inc.	Hatch and hatch cover for thermal regeneration apparatus
DE3512102A1 (de) *	1985-03-29	1986-10-09	Mannesmann AG, 4000 Düsseldorf	Tragrostboden fuer einen katalysatorkorb
US5409670A (en) *	1993-08-13	1995-04-25	Peerless Manufacturing Company	SCR reactor sealing mechanism
DE102011001366A1 (de) *	2011-03-17	2012-09-20	Thyssenkrupp Polysius Ag	Katalysator für die Rauchgasbehandlung in einer Anlage zur thermischen Behandlung mineralischer Grundstoffe
CN107511074A (zh) *	2017-10-12	2017-12-26	中国华电科工集团有限公司	用于烟气脱硝反应器内的催化剂模块固定装置及固定方法
CN107511074B (zh) *	2017-10-12	2023-12-05	中国华电科工集团有限公司	用于烟气脱硝反应器内的催化剂模块固定装置及固定方法

Also Published As

Publication number	Publication date
FR2084423A5 (fr)	1971-12-17
JPS5410547B1 (fr)	1979-05-08
GB1334577A (en)	1973-10-24
CA942212A (en)	1974-02-19
BE764154A (fr)	1971-08-02
DE7009055U (de)	1970-06-18
NL7103183A (fr)	1971-09-14

Legal Events

Date

Code

Title

Description

1988-09-21

AS

Assignment

Owner name: UOP, DES PLAINES, IL, A NY GENERAL PARTNERSHIP

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:KATALISTIKS INTERNATIONAL, INC., A CORP. OF MD;REEL/FRAME:005006/0782

Effective date: 19880916

1989-04-27

AS