Plant and process for aerial gas separation using a parallelepipedal adsorber
AssigneeL'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
InventorBenoit Davidian
Life of this patent
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Abstract
A plant for separating gases from the air comprises, in the direction of circulation of the stream of air: a compression means for compressing the stream of air to a pressure P1 of between 1.15 bar abs and 2 bar abs, a TSA adsorption unit, and a cryogenic distillation unit, with the adsorption unit comprising at least two adsorbers A1 and A2 each having a parallelepipedal casing arranged horizontally and comprising: an air stream inlet and outlet, two fixed bed adsorbent masses each likewise parallelepipedal with faces parallel to the faces of the casing, and a set of volumes allowing the stream of air to traverse the two adsorbent masses horizontally, in parallel, over the whole cross section of each of the adsorbent masses and throughout their thicknesses.
Claims16
A plant for aerial gas separation comprising, in the direction of circulation of the air stream:
- a. compression means that make it possible to compress the air stream to a pressure P1 of between 1.15 bar abs and 2 bar abs;
- b. a TSA unit;
- and
- c. a cryogenic distillation unit,
- wherein the TSA unit comprises at least two adsorbers A1 and A2 each having a parallelepipedal casing arranged horizontally and comprising:
- an air stream inlet and outlet;
- two fixed bed adsorbent masses, each also parallelepipedal;
- and
- a set of volumes allowing the air stream to pass through the two adsorbent masses horizontally, in parallel, over the entire cross-section of each of the adsorbent masses and throughout their thicknesses,
- wherein the set of volumes comprises:
- an internal part comprising:
- a first volume V1 for the introduction and destruction or recovery of fluids;
- a second volume V2 and a third volume V3 each comprising an adsorbent mass and situated on either side of the first volume V1;
- and
- a free part comprising two volumes V4 and V5 for the introduction and distribution or recovery of fluids located on either side of the internal part and between the internal part and the adsorber casing;
- wherein the internal part is arranged symmetrically relative to the mid-plane of the adsorber casing,
- wherein the internal part has a solid bottom end and/or a solid top end and the first volume V1, the second volume V2 and the third volume V3 have vertical walls sealably fixed to the top wall of the adsorber casing or to the solid top end and to the bottom wall of the adsorber casing or to the solid bottom end.
A plant for aerial gas separation comprising, in the direction of circulation of the air stream:
- a. compression means that make it possible to compress the air stream to a pressure P1 of between 1.15 bar abs and 2 bar abs;
- b. a TSA unit;
- and
- c. a cryogenic distillation unit,
- wherein the adsorption unit comprises at least two adsorbers A1 and A2 each having a parallelepipedal casing arranged horizontally and comprising:
- an air stream inlet and outlet;
- two fixed bed adsorbent masses, each also parallelepipedal, the faces of which are parallel to the faces of the casing;
- and
- a set of volumes allowing the air stream to pass through the two adsorbent masses horizontally, in parallel, over the entire cross-section of each of the adsorbent masses and throughout their thicknesses,
- wherein the set of volumes comprises:
- an internal part comprising:
- a first volume V1 for the introduction and distribution or recovery of fluids;
- a second volume V2 and a third volume V3 each comprising an adsorbent mass and situated on either side of the first volume V1;
- and
- a free part comprising two volumes V4 and V5 for the introduction and distribution or recovery of fluids located on either side of the internal part and between the internal part and the adsorber casing;
- wherein the internal dart is arranged symmetrically relative to the mid-plane of the adsorber casing,
- wherein the first volume V1, the second volume V2 and the third volume V3 have vertical walls sealably fixed to at least one solid plate parallel to a lateral wall of the adsorber casing.
Dependencies are inferred from the claim text.