Back to results
US 11,731,097 B2Granted
Catalyst particle shape
AssigneeHaldor TopsøE A/S
InventorsMoritz Bo Belstrup, Peter Rahbek, Martin Østberg
Life of this patent
Estimating the term…
Abstract
A catalytic system is provided which comprises a tubular reactor and at least one catalyst particle located within the tubular reactor. The catalyst particles have a particular geometric form which promotes heat transfer with the tubular reactor. Certain specific catalyst particles are also provided.
Claims13
A catalytic system comprising:
- a. a tubular reactor having a cylindrical form around an axis A-A;
- the internal surface of said tubular reactor having an internal diameter D and an internal radius of curvature R, defined in a plane perpendicular to the axis A-A;
- b. at least one catalyst particle located in said tubular reactor, wherein the catalyst particle has a three-dimensional form with a primary length axis L, wherein each catalyst particle comprises:
- a first end-face and a second end-face being arranged perpendicular to said primary axis L at least in the region in which they meet said primary axis L, and
- first and second sidewalls extending between the first and second end-faces, each of said sidewalls having a curved profile in a cross-section perpendicular to the primary axis L, wherein said first and second sidewalls each independently have an external radius of curvature R1, R2 in said plane being 0.4-0.99 times the internal radius of curvature R of the tubular reactor,
- and wherein the maximum width D1 of the catalyst particle, measured in a plane defined perpendicular to the primary axis L, is less than 0.25 times the internal diameter D of the tubular reactor,
- and wherein 2×R1 is greater than D1;
- and 2×R2 is greater than D1.
5 more elements
A catalytic system comprising:
- a. a tubular reactor having a cylindrical form around an axis A-A;
- the internal surface of said tubular reactor having an internal diameter D and an internal radius of curvature R, defined in a plane perpendicular to the axis A-A;
- b. at least one catalyst particle located in said tubular reactor,
- wherein the catalyst particle has a three-dimensional shape comprising a body portion;
- said body portion being in the form of an elliptic cylinder and comprising a sidewall extending parallel to a primary axis L between a first end-face and a second end-face;
- wherein the first end-face and the second end-face are arranged perpendicular to said primary axis L at least in the region in which they cross said primary axis L;
- and
- wherein the ellipse of said elliptic cylinder has a major axis 2a and a minor axis 2b, and a radius of curvature R5 defined as:
- R
-
- 5
- =
- a
- 2
- b
- being 0.9-1.10 times the internal radius of curvature R of the tubular reactor,
- and wherein the maximum width D1 of the catalyst particle, measured in a plane perpendicular to said primary axis L, is less than 0.25 times the diameter D of the tubular reactor.
14 more elements
Dependencies are inferred from the claim text.