Catalytic reactor with monolithic element

Claim 2

A reactor as set forth in claim 2 wherein the layer is in a state of radial compression between said element and shell.

Claim 3

A catalytic exhaust reactor comprising a tubular metal shell, a cylindrical fluid pervious frangible catalyst element inside said shell, said shell having an inner surface and said element having an outer surface spaced from said inner surface to provide an annular space between said surfaces, an annular resilient nonmetallic fibrous insulating member in said annular space and in contact with each of said surfaces and serving to mount said element in said shell, and an adhesive binder and rigidizer material dispersed through said fibrous member in heavy concentrations at the outside surfaces thereof to fluid seal the exposed surfaces of the member and to bond the member to the shell and element surfaces, the center portion of said member being resilient and relatively free of said material to maintain resilient support of the element in the shell.

Claim 4

A device as Set forth in claim 4 wherein said material is colloidal silica.

Claim 5

A catalytic reactor comprising a tubular metal shell, a gas pervious refractory catalyst element inside said shell and arranged so that flow through the element is substantially axial with respect to the axis of the shell, means resiliently mounting said element inside said shell so that the outer surface of the element is spaced from the inner surface of the shell, said means comprising a nonmetallic resilient fibrous insulating layer in the space between said surfaces, said fibrous layer containing a differentially dispersed solid material deposited on the fibers in heavy concentrations adjacent the exposed surfaces of the layer and adjacent the outer layer surfaces in juxtaposition to said element and shell surfaces and in materially less concentration in the center portion of the layer whereby said center portion is resilient, said deposited material serving to harden and seal said exposed and outer layer surfaces and to bond the outer layer surfaces to said element and shell.

Claim 6

A reactor as set forth in claim 6 wherein said fibrous layer is in contact with and bonded to said shell surface and said element surface and in compression between them and serves to seal the outside of said element.

Claim 7

A reactor as set forth in claim 6 wherein said layer comprises a fibrous sleeve fitted over the element.

Claim 8

A reactor as set forth in claim 6 wherein said layer comprises an overlapped fibrous blanket around the element.

Claim 9

A reactor as set forth in claim 6 wherein said layer comprises spirally wrapped fibrous paper around the element.

Claim 10

A reactor as set forth in claim 6 wherein said layer, element, and shell are positioned and arranged so that said element is at all times out of contact with relatively moving metal parts of said reactor.

Claim 11

A reactor as set forth in claim 11 wherein said fibrous layer is in contact with and bonded to said shell surface and to said element surface and in compression between them and serves to seal the outer surface of the element.

Claim 12

A reactor as set forth in claim 6 wherein said material comprises a dried out colloidal adhesive fiber binding and rigidizing solution wherein the colloidal material has been preferentially deposited out adjacent the outermost faces of the layer.

Claim 13

A reactor as set forth in claim 13 wherein said material is colloidal silica.

Claim 14

A catalytic reactor comprising a metal shell, a gas pervious refractory catalyst element having an outer surface, and means mounting said element in said shell so that said outer surface is spaced from the shell, said means comprising a resilient layer of high temperature resistant nonmetallic insulating fibers having one side in contact with said outer surface and the other side in contact with said shell, said layer containing dried adhesive material dispersed therein and serving as a fiber binder and rigidizer and to bond the layer to the outer surface and to the shell, said adhesive material being of variable concentration in said layer and being of lower concentration at the inner core of the layer and of higher concentration adjacent the outer surfaces of the layer.