Back to results
US 2022/0401914 A1Published application
Binderless adsorbent for separation of a gaseous stream
AssigneeZeochem LLC
InventorsPatrick Purcell, Kerry C. Weston, R. Samuel Boorse
Life of this patent
Estimating the term…
Abstract
A binderless zeolite adsorbent for separation of oxygen from a gaseous stream. The adsorbent is a blend of a lithium exchanged zeolite 13X, a lithium exchanged low silica zeolite X zeolite, and halloysite clay. Also disclosed is a process of making the binderless zeolite adsorbent. Further disclosed is a process for production of oxygen from a gaseous stream utilizing the binderless zeolite adsorbent.
Claims16
A binderless adsorbent for separation of a gaseous stream comprising
- a blend of a lithium exchanged zeolite 13X (Li13X), a lithium exchanged low silica X zeolite (LiLSX), and halloysite clay,
- wherein the Li13X comprises from about 5 to about 20% of the adsorbent,
- wherein the LiLSX comprises from an 80 to about 90% of the adsorbent, and
- wherein the halloysite clay comprises from about 0.1% to 5.0% of the adsorbent, and
- wherein the adsorbent has a bulk density of at least about 640 g/L, as measured according to DIN/ISO 787.
2 more elements
A process of making an adsorbent for separation of a gaseous stream comprising the following steps:
- providing a low silica X zeolite;
- mixing said zeolite with a halloysite clay to form a mixture, wherein said halloysite clay comprises from about 5% to about 20% of the mixture;
- forming shaped products from said mixture;
- calcining said shaped products;
- caustically treating said calcined shaped products to convert at least a portion of said halloysite clay to a 13X zeolite;
- and
- lithium exchanging the LSX and 13X zeolite of said shaped products to produce the adsorbent.
4 more elements
Dependencies are inferred from the claim text.