초록 ▼

A process for separating components of a gas by adsorption in an enclosure (1) divided into equal tight separated compartments (27) each provided with an adsorbent material (7, 8) chosen in function of the gas to be treated and each provided for temporarily allowing the gas to be treated to be intro

A process for separating components of a gas by adsorption in an enclosure (1) divided into equal tight separated compartments (27) each provided with an adsorbent material (7, 8) chosen in function of the gas to be treated and each provided for temporarily allowing the gas to be treated to be introduced and at least one chosen component of the components of this gas to be evacuated whilst the other component or components of this gas are adsorbed by the material (7, 8), which process consists in introducing the gas to be treated into one of the compartments (27) until a predetermined pressure is reached while in the next compartments (27), gas to be treated is introduced in at least one compartment (27) and the chosen component is allowed to escape, the pressure in the next compartment (27) is allowed to drop so as to obtain a partial desorption of the non chosen component or components of the gas, a purging fluid is injected in the last compartment to achieve the final desorption, and device for carrying out the process.

대표청구항 ▼

A process for separating a gas mixture composed of a plurality of gaseous constituents into separate gaseous constituents by adsorption within an enclosure, the enclosure having defined therein a plurality of compartments which are equal in size, sequentially arranged, separated from one another, an

A process for separating a gas mixture composed of a plurality of gaseous constituents into separate gaseous constituents by adsorption within an enclosure, the enclosure having defined therein a plurality of compartments which are equal in size, sequentially arranged, separated from one another, and gas tight, which are each provided with an adsorbent material preselected as a function of which of the plurality of gaseous constituents is to be separated, and which are each arranged for temporarily allowing introduction of a gas mixture to be separated and for evacuation of at least one preselected gaseous constituent of the gas mixture whilst the adsorbent material adsorbs at least one not preselected gaseous constituent of the gas mixture to be separated, the process comprising: a. as adsorption steps: (1) introducing the gas mixture to be separated into one of the plurality of compartments until a predetermined pressure is reached while in further compartments of the plurality of compartments, consecutively starting from a compartment which is closest to the compartment where the gas is introduced in step a. (1); and (2) introducing the gas mixture to be separated into at least one compartment and allowing the at least one preselected constituent to escape therefrom; b. as desorption steps: (1) allowing pressure in a next compartment to drop so as to obtain naturally a partial desorption of the at least one not preselected gaseous constituent and optionally subsequently subjecting the next compartment, in view of said partial desorption, to a partial vacuum; (2) subjecting at least a next additional compartment to a final desorption vacuum which is equal to or stronger than the partial vacuum for the partial desorption; and (3) injecting a purging fluid into a last compartment to achieve a final desorption of the at least one not preselected constituent and substantially maintaining the final desorption vacuum therein during injection of the purging fluid; and c. providing between the compartment of step b (3) into which the purging fluid is injected and which is subjected to the final desorption vacuum, and the compartment of step a (1) wherein the gas mixture to be separated is introduced up to a predetermined pressure, an additional compartment wherein the gas mixture to be separated is let in naturally, by natural aspiration, whereby the vacuum prevailing therein after vacuum purging in step b (3) is compensated.