System and method for sulfur recovery
AssigneeGeneral Electric Company
InventorsRaul Eduardo Ayala, Harish Radhakrishna Acharya
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Abstract
Disclosed herein are various types of systems and methods for the efficient production of sulfur from a sulfur-laden gas. The system described herein includes a desulfurization unit, a regenerator receiving sulfurized mass from the desulfurization unit, a sulfur recovery unit, a sulfur track in fluid communication with the regenerator and the sulfur recovery unit, and a sulfur concentrator on a sulfur track. The sulfur stream coming out of the regenerator is concentrated using the sulfur concentrator and converted into a sulfur product at the sulfur recovery unit.
Claims23
A system, comprising:
- a desulfurization unit;
- a regenerator to receive sulfurized mass from the desulfurization unit;
- a sulfur recovery unit;
- a sulfur track in fluid communication with the regenerator and the sulfur recovery unit;
- and
- a sulfur concentrator on the sulfur track.
A system, comprising:
- a desulfurization unit configured to receive a sulfur-laden gas stream and form sulfurized mass;
- a regenerator to receive sulfurized mass from the desulfurization unit;
- a sulfur recovery unit;
- a sulfur track for transporting oxidized sulfur gas from the regenerator to the sulfur recovery unit;
- a sulfur oxide concentrating membrane on the sulfur track, comprising a first part to collect concentrated sulfur oxide and a second part to collect residual gas of the sulfur concentrating membrane;
- a slip-stream fuel track in fluid communication with the desulfurization unit and the sulfur recovery unit;
- a hydrogen concentrating membrane, disposed on the slip-stream fuel track, comprising a first part to collect concentrated hydrogen and a second part to collect residual gas of the hydrogen concentrating membrane;
- a sweep steam track connected to the first part of the sulfur oxide concentrating membrane and first part of the hydrogen concentrating membrane;
- wherein
- the sulfur recovery unit is in fluid communication with the first part of the sulfur oxide concentrating membrane and the first part of the hydrogen concentrating membrane.
A system, comprising:
- a desulfurization unit configured to receive a sulfur-laden gas stream and form sulfurized mass;
- a regenerator to receive sulfurized mass from the desulfurization unit;
- a sulfur recovery unit;
- a sulfur track for transporting reduced sulfur gas from the regenerator to the sulfur recovery unit;
- a hydrogen sulfide concentrating membrane on the sulfur track, comprising a first part to collect concentrated hydrogen sulfide and a second part to collect the residual gas from the hydrogen sulfide concentrating membrane;
- a first slip-stream sulfur track transporting reduced sulfur gas from the sulfur track to a hydrogen concentrating membrane comprising a first part to collect concentrated hydrogen and a second part to collect residual gas of the hydrogen concentrating membrane;
- an oxidizer on a second slip-stream of the sulfur track in fluid communication with the first part of the hydrogen sulfide concentrating membrane, and the sulfur recovery unit;
- a sweep steam track connected to the first part of the hydrogen sulfide concentrating membrane and first part of the hydrogen concentrating membrane;
- wherein
- the sulfur recovery unit is in fluid communication with the oxidizer.
A process, comprising the steps of:
- removing sulfur compounds from a sulfur-laden gas stream using a sorbent in a desulfurization unit to form a sulfurized mass;
- desorbing gas from the sulfurized mass in a regenerator to form a sulfur stream;
- concentrating a sulfur content of the sulfur stream using a sulfur concentrator to form a concentrated sulfur stream;
- and
- converting the concentrated sulfur stream to form a sulfur product in a sulfur recovery unit.
Dependencies are inferred from the claim text.