One aspect of the present invention provides a sodium hypochlorite producing system, which includes: a first means configured to obtain saturated salt water and purified water; a second means including a anode chamber and a cathode chamber which are partitioned by a separator, the anode chamber allowing the saturated salt water to be converted into a anodic product including chlorine gas and anodic water, and the cathode chamber allowing the purified water to be converted into a cathodic product including sodium hydroxide, hydrogen gas, and hydroxide ions (OH.sup.−); a third means configured to react the anodic product and the cathodic product to produce a mixture including sodium hypochlorite and hydrogen gas; and a fourth means configured to prevent the sodium hydroxide or hydroxide ions (OH.sup.−) of the cathodic product or a combination thereof from moving to the anode chamber through the separator.

One aspect of the present invention provides a sodium hypochlorite producing system, which includes: a first means configured to obtain saturated salt water and purified water; a second means including a anode chamber and a cathode chamber which are partitioned by a separator, the anode chamber allowing the saturated salt water to be converted into a anodic product including chlorine gas and anodic water, and the cathode chamber allowing the purified water to be converted into a cathodic product including sodium hydroxide, hydrogen gas, and hydroxide ions (OH.sup.−); a third means configured to react the anodic product and the cathodic product to produce a mixture including sodium hypochlorite and hydrogen gas; and a fourth means configured to prevent the sodium hydroxide or hydroxide ions (OH.sup.−) of the cathodic product or a combination thereof from moving to the anode chamber through the separator.

Systems and methods for use in extracting oil from solid plant-based materials are described. The systems and methods use an electrolyzed carrier fluid made from a hydroxide brine for contacting with plant-based material to thereby separate oil from solid plant particulate. The electrolyzed carrier fluid can have a reductive oxidation-reduction-potential (ORP) of −700 mV or more, such as in the range of from about −900 mV to about −1000 mV.

A method for controlling a hydrogen generation system includes controlling the potentials of an electrode for oxygen generation and an electrode for hydrogen generation included in an electrolyzer so that the potential change is smaller in the electrode for oxygen generation or the electrode for hydrogen generation having a larger deterioration rate than in the electrode having a smaller deterioration rate.

A method for controlling a hydrogen generation system includes controlling the potentials of an electrode for oxygen generation and an electrode for hydrogen generation included in an electrolyzer so that the potential change is smaller in the electrode for oxygen generation or the electrode for hydrogen generation having a larger deterioration rate than in the electrode having a smaller deterioration rate.

A method for producing fluorine gas including electrolyzing an electrolyte in an electrolytic cell, measuring an electric energy accumulated after the electrolyte is placed in the electrolytic cell, and the electrolyzing is started, and sending a fluid generated in the inside of the electrolytic cell in the electrolyzing the electrolyte, to the outside of the electrolytic cell through a flow path. In the sending, the flow path is switched in accordance with the electric energy measured in the measuring an electric energy, such that the fluid is sent to a first flow path that sends the fluid to a first outside when the electric energy measured in the measuring an electric energy is not less than a predetermined reference value, or the fluid is sent to a second flow path that sends the fluid to a second outside when the electric energy is less than the predetermined reference value.

Systems and methods are provided for operating an electrolyzer. The systems and methods include operations comprising: forming an electrical series connection through the plurality of electrolytic cells; bypassing a first electrolytic cell using bypass circuitry included in a first bipolar plate to electrically remove the first electrolytic cell from the electrical series connection while maintaining flow of current through a second of electrolytic cell; monitoring one or more parameters of the plurality of electrolytic cells; and generating, based on the one or more parameters, a model representing operating conditions of the electrolytic cells on an individual electrolytic cell basis.

Systems and methods are provided for operating an electrolyzer. The systems and methods include operations comprising: forming an electrical series connection through the plurality of electrolytic cells; bypassing a first electrolytic cell using bypass circuitry included in a first bipolar plate to electrically remove the first electrolytic cell from the electrical series connection while maintaining flow of current through a second of electrolytic cell; monitoring one or more parameters of the plurality of electrolytic cells; and generating, based on the one or more parameters, a model representing operating conditions of the electrolytic cells on an individual electrolytic cell basis.

An electrochemical hydrogen compression system includes a hydrogen gas compression part that compresses hydrogen by applying a current between an anode and a cathode provided on two surfaces of a proton exchange film, and a supply pipeline that guides hydrogen discharged from a hydrogen supply source to the hydrogen gas compression part. The hydrogen gas compression part has an outlet for discharging unreacted hydrogen. The electrochemical hydrogen compression system further includes a film resistance meter and a voltmeter that acquire information related to a wet state of the proton exchange film, a fourth opening/closing part and a fifth opening/closing part that regulate discharge of hydrogen from the outlet, and a control device that controls the fourth opening/closing part and the fifth opening/closing part. The control device controls the fourth opening/closing part and the fifth opening/closing part based on at least the wet state of the proton exchange film.

The invention relates to a device for forming concretions in an electrolytic medium by electrolysis, which comprises an anode 110 and a cathode 120 submerged in the electrolytic medium and a regulating circuit 100 configured to regulate an electrolysis current in order to form concretions on the cathode 120.

The anode 110 and the cathode 120 are used as a current source for supplying the electrolysis process and are connected in the regulating circuit by at least one regulating element capable of limiting the electrolysis current.