Electrolysis system comprising a fluid rebalancing line equipped with a degassing tank.

Abstract

An electrolysis system comprising a fluid rebalancing line equipped with a degassing tank. The invention relates to an electrolysis system (1) for producing a first mixture of a first gas and a fluid and a second mixture of a second gas and the fluid, a first separator (5) configured to separate the first mixture into a first submixture comprising the first gas and condensates of the fluid and a second submixture comprising fluid in which the first gas is dissolved, and a second separator (9) configured to separate the second gas from the second mixture, the system comprising a production line (17) for the first gas configured to convey the first gas from the first submixture of the first separator (5) to an outlet point (19), a third separator (23) being disposed on the production line (17) between the first separator (5) and the outlet point (19).The electrolysis system (1) comprising: a rebalancing line (39) for the fluid of the second submixture extending between the first and second separators, including a degasser tank (41) connected to a vent (57), a transfer line (61) fluidly connecting the third separator (23) to the degasser tank (41). (Figure 1),

Claims

first part (43) fluidly connecting the first separator (5) to the deaerating tank (41) and a second part (45) fluidly connecting the deaerating tank (41) to the second separator (9), the first part (43) of the rebalancing line (39) comprising a first control valve (51) configured to regulate the pressure of the fluid circulating in said first part (43) and the second part (45) of the rebalancing line (39) comprising a second control valve (53) configured to regulate the flow of the fluid circulating in said second part (45) of the rebalancing line (39).

6. Electrolysis system (1) according to any one of claims 1 to 5, wherein the first separator (5) includes a detection means (67) configured to detect an interface (IN) between the first submixture and the second submixture within the first separator (5).

7. Electrolysis system (1) according to any one of claims 1 to 6 in combination with claim 5, comprising a pilot member (65) of the valve(s) (51, 53, 59, 63), the pilot member (65) being configured to control the second control valve (53) of the second part (45) of the rebalancing line (39) as a function of the interface (IN) between the first submix and the second submix within the first separator (5).

8. Electrolysis system (1) according to claim 7 in combination with claim 4, wherein the pilot member (65) is configured to control the regulating valve (59) of the degassing line (55) as a function of the boundary (LI) between the first gas and the fluid within the degassing tank (41).

9. Method of controlling the electrolysis system (1) according to any one of claims 7 or 8, wherein the pilot member (65) controls the second control valve (53) when the interface (IN) between the first submixture and the second submixture within the first separator (5) reaches a predefined maximum level (MA).

10. Method of controlling the electrolysis system (1) according to claim 8, wherein the pilot member (65) controls the regulating valve (59) when the limit (LI) between the first gas and the fluid within the degassing tank (41) reaches a predefined minimum threshold (MI).

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