초록 ▼

Ethene is separated from a gas mixture containing ethane by a pressure swing adsorption process carried out at a temperature in the range of about 50 to about 200.degree. C., wherein the adsorption step of the process is conducted by passing the gas mixture through an adsorption zone containing type

Ethene is separated from a gas mixture containing ethane by a pressure swing adsorption process carried out at a temperature in the range of about 50 to about 200.degree. C., wherein the adsorption step of the process is conducted by passing the gas mixture through an adsorption zone containing type A zeolite whose exchangeable cations are preferably made up of at least about 60 but not more than 75% sodium ions and more than 25 and up to about 40 percent potassium ions.

대표청구항 ▼

[What is claimed is:] [1.](a) passing said gas mixture through at least one adsorption zone containing type A zeolite having, as its exchangeable cations, about 55% to about 73% sodium ions, about 27% to about 40% potassium ions and about 0% to about 5% other ions selected from Group IA ions other t

[What is claimed is:] [1.](a) passing said gas mixture through at least one adsorption zone containing type A zeolite having, as its exchangeable cations, about 55% to about 73% sodium ions, about 27% to about 40% potassium ions and about 0% to about 5% other ions selected from Group IA ions other than sodium and potassium, Group IB, Group IIA ions, Group IIIA ions, Group IIIB ions, lanthanide series ions and mixtures of these, thereby adsorbing at least part of said alkene from said gas mixture and producing an alkene-depleted gas; and(b) regenerating said zeolite, thereby producing an alkene-enriched gas.