US 2023/0390693 A1Published application

Adsorptive gas separation process and system using third component adsorption to drive desorption of purified first component in rapid cycling gas separation devices

OwnerJoel CIZERON, Andrew LUI +8inventors

InventorsJoel CIZERON, Andrew LUI, Omid GHAFFARI-NIK, Sabereh REZAEI, Anne FREEMAN, Chujie ZHU, Jahan AHMADI, Nigel WHEELER, Onder TULPAR, Pierre HOVINGTON

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Abstract

Generally, a cyclic sorptive gas separation process can comprise a feed or sorbing step followed by a regenerating step. In embodiments, the sorbing step can involve admitting said feed stream into a contactor, sorbing at least a portion of a first component onto a sorbent, producing a first product stream, and recovering a first product stream. In embodiments, the regenerating step can comprise admitting or feeding the first regeneration stream into the contactor, sorbing a fraction of a third component onto the contactor, desorbing a fraction of the first component, and recovering a second product stream from the contactor, wherein the regeneration step further comprises controlling a partial pressure of the third component to a partial pressure threshold equal to or greater than 0.4 Bara.

Claims82

Dependent claims

A cyclic sorptive gas separation process for separating a component of a feed stream comprising at least a first component, and a second component, said sorptive gas separation process comprising:

(a) a feed or sorbing step comprising:
i. admitting said feed stream into a contactor having at least a first sorbent therein, for contacting said feed stream with said first sorbent,
ii. sorbing at least a portion of said first component onto said at least said first sorbent,
iii. producing a first product stream, at least partially depleted of said first component relative to said feed stream, and
iv. recovering said first product stream from said at least one contactor;
and
(b) a regenerating step comprising:
i. admitting or feeding at least a first regeneration stream having a third component into said at least one contactor,
ii. sorbing or condensing a fraction of said third component into said at least one contactor
iii. desorbing a fraction of the at least first component sorbed onto said at least said first sorbent,
iv. recovering a second product stream from said at least one contactor,
wherein said regeneration step further comprises controlling a partial pressure of said third component in a first regeneration stream to a partial pressure threshold equal to or greater than 0.4 Bara for at least a of fraction of said regenerating step,
wherein said at least said first sorbent is one of:
a metal organic framework (MOF) sorbent, a polyethylenimine doped silica (PEIDS) sorbent, an amine containing porous network polymer sorbent, an amine doped porous material sorbent, an amine doped MOF sorbent, a zeolite sorbent, an activated carbon, a doped activated carbon, a doped graphene, an alkali-doped or a rare earth doped porous inorganic sorbent.

11 more elements

A cyclic sorptive gas separation process for separating a component of a feed stream comprising at least a first component and a second component, said sorptive gas separation process comprising:

(a1) a first feed or sorbing step comprising:
passing a first feed stream along at least one contactor comprising at least one sorbent;
sorbing said first component of said first feed stream onto said at least one sorbent;
producing a first fraction of first product stream partially depleted of said first component relative to said feed stream, and
recovering said first fraction of first product stream from said at least one contactor;
(a2) a second feed or a second sorbing step comprising:
passing a second feed stream along said at least one contactor comprising said at least one sorbent;
sorbing said first component of said second feed stream onto said at least one sorbent;
producing a second fraction of first product stream partially depleted of first component relative to said second feed stream, and
recovering second fraction of first product stream from said at least one contactor;
(b1) a first regenerating step comprising:
contacting a first regeneration stream having at least said third component with said at least one contactor comprising said at least one sorbent;
sorbing or condensing a fraction of said third component from said first regeneration stream onto said at least one sorbent and desorbing said first component, and
recovering a first fraction of second product stream from said at least one contactor;
(b2) a second regenerating step comprising:
controlling a partial pressure of said third component of a second regeneration stream to a third component partial pressure threshold of equal to or greater than 0.4 Bara for at least of fraction of step (b2);
contacting said second regeneration stream with said at least one contactor comprising said at least one sorbent;
sorbing or condensing a fraction of said third component from said second regeneration stream onto said at least one sorbent and desorbing said first component,
recovering a second fraction of second product stream from said at least one contactor;
(c1) a first conditioning step comprising at least one of:
i. reducing a partial pressure of said third component or a relative humidity of a gas phase contained in said at least one contactor and recovering a first fraction of third product stream from said at least one contactor,
ii. reducing a pressure of a gas phase contained in said at least one contactor and recovering a first fraction of third product stream from said at least one contactor, and
iii. admitting a first condition stream into said at least one contactor, said first condition stream having said third component and a third component partial pressure of equal to or less than a third component partial pressure threshold of 50% of an equilibrium vapor pressure of said third component at a temperature of said at least one sorbent at the end of step (b), flushing or sweeping said at least one contactor and recovering a first fraction of third product stream from said at least one contactor;
(c2) a second condition step comprising at least one of:
i. reducing a partial pressure of said third component or a relative humidity of a gas phase contained in said at least one contactor and recovering a second fraction of third product stream from said at least one contactor,
ii. reducing a pressure of a gas phase contained in said at least one contactor and recovering a second fraction of third product stream from said at least one contactor, and
iii. admitting a second condition stream into said at least one contactor, said second condition stream having said third component and a third component partial pressure threshold of equal to or less than a third component partial pressure threshold of 50% of an equilibrium vapor pressure of said third component at a temperature of said at least one sorbent at the end of step (b), flushing or sweeping said at least one contactor and recovering a second fraction of third product stream from said at least one contactor,
wherein said at least one sorbent is one of:
a metal organic framework (MOF) sorbent, a polyethylenimine doped silica (PEIDS) sorbent, an amine containing porous network polymer sorbent, an amine doped porous material sorbent, an amine doped MOF sorbent, a zeolite sorbent, an activated carbon, a doped activated carbon, a doped graphene, an alkali-doped or rare earth doped porous inorganic sorbent, and
wherein during step (a1) and step (a2), or step (b1) and step (b2), or step (c1) and step (c2) are conducted having at least one of different pressures, different temperatures or with different process stream compositions between each step.

27 more elements

A cyclic sorptive gas separation process for separating a component of a feed stream comprising at least a first component and a second component, said sorptive gas separation process comprising:

(a) contacting said feed stream along at least one contactor comprising at least one sorbent;
(b) sorbing said first component of said feed stream onto said at least one sorbent;
(c) producing a first product stream partially depleted of said first component relative to said feed stream;
(d) recovering said first product stream from said at least one contactor;
(e) producing a first regeneration stream having a third component within a vessel fluidly connected to said at least one contactor or within said at least one contactor, said first regeneration stream having partial pressure of said third component equal to or greater than a third component partial pressure threshold of 0.4 Bara during at least a fraction of step (b);
(f) contacting said first regeneration stream with said at least one sorbent in said least one contactor;
(g) sorbing or condensing a fraction of said third component of said first regeneration stream onto said at least one sorbent and desorbing a fraction of said first component from said at least one sorbent, and
(h) recovering a second product stream from said at least one contactor.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/034,522Filed 11 May 2022
Priority: 11 May 2021
Published: 7 Dec 2023
Term ends: Not estimatedThe source records don’t support an estimate.

Classification21 codes

B01D 53/0476
Pressure swing adsorption: vacuum pressure swing adsorption
B01D 53/0423
Constructional details of adsorbing systems: beds in columns
B01D 53/0462
With stationary adsorbents: temperature swing adsorption
B01D 53/047
With stationary adsorbents: pressure swing adsorption

Family

Application63/187,174Us provisional application · filed 11 May 2021
US 2023/0390693 A1This patent

From the US filing history. Foreign family members aren’t listed.

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