Electrical energy driven seawater carbon capture system

Abstract

This invention discloses an electrically driven seawater carbon sequestration system, relating to the field of carbon neutrality technology. The system includes: a hydrogen-chlorine electrolysis unit, a hydrochloric acid generation unit, and a calcium carbonate generation unit. The hydrogen-chlorine electrolysis unit is used to electrolyze seawater solution under electrical power to generate hydrogen, chlorine, and a calcium carbonate aqueous solution. The hydrochloric acid generation unit, connected to the hydrogen-chlorine electrolysis unit, is used to generate hydrochloric acid using hydrogen and chlorine. The calcium carbonate generation unit, connected to the hydrogen-chlorine electrolysis unit, is used to treat the calcium carbonate aqueous solution to generate solid calcium carbonate. This invention uses the more readily occurring anodic chlorine evolution reaction instead of the oxygen evolution reaction. Simultaneously, the hydrogen and chlorine generated after seawater electrolysis undergo secondary treatment, ultimately yielding hydrochloric acid and solid calcium carbonate as two products, fully utilizing seawater resources and avoiding energy loss and consumption.

Description

Technical Field

[0001] This invention relates to the field of carbon neutrality technology, and in particular to an electrically driven seawater carbon sequestration system. Background Technology

[0002] Besides point source capture, CO2 can also be captured from atmospheric or oceanic carbon sinks to slow carbon emission rates and mitigate the severe problem of climate change. Approximately 23% of global CO2 emissions ultimately enter the ocean, making ocean CO2 capture advantageous. The products of ocean CO2 capture can be gaseous CO2 or solid carbonates, with solid carbonates offering advantages in transportation and storage, and can also be utilized as a byproduct.

[0003] Current seawater carbon fixation primarily utilizes bipolar membrane electrodialysis or electrolysis technologies. Bipolar membranes are a novel type of ion-exchange composite membrane, typically composed of a cation exchange layer, a hydrophilic interfacial layer, and an anion exchange layer, resulting in relatively high costs. Furthermore, their application requires integration with other cation and anion exchange membranes to form a bipolar membrane electrodialysis system, demanding advanced technical expertise.

[0004] To overcome the shortcomings of bipolar membrane electrodialysis, electrolysis is used to achieve carbon sequestration in seawater. This typically involves an oxygen evolution reaction (OER) in seawater to produce oxygen and calcium carbonate. However, the OER requires specific temperatures and catalysts, placing stringent demands on the external environment. Therefore, in practice, the controllability of the OER is low. Furthermore, the OER reaction only yields calcium carbonate as a single product; the oxygen and other gases produced are not properly recovered and utilized, resulting in energy loss and consumption. Summary of the Invention

[0005] The purpose of this invention is to provide an electrically driven seawater carbon fixation system that uses the more readily occurring anodic chlorine evolution reaction instead of the oxygen evolution reaction. At the same time, the hydrogen and chlorine produced after seawater electrolysis are subjected to secondary treatment, ultimately yielding hydrochloric acid and solid calcium carbonate as two products. This fully utilizes seawater resources and avoids energy loss and consumption.

[0006] To achieve the above objectives, the present invention provides the following solution:

[0007] An electrically driven seawater carbon sequestration system, comprising:

[0008] The hydrogen and chlorine electrolysis unit is used to electrolyze seawater solution under the drive of electrical energy to generate hydrogen, chlorine and calcium carbonate aqueous solution;

[0009] A hydrochloric acid generation unit is connected to the hydrogen-chlorine electrolysis unit and is used to generate hydrochloric acid using the hydrogen and chlorine.

[0010] A calcium carbonate generating unit is connected to the hydrogen and chlorine electrolysis unit and is used to treat the calcium carbonate aqueous solution to generate solid calcium carbonate.

[0011] Optionally, the hydrogen-chlorine electrolysis unit specifically includes: an electrolytic cell and an anode chamber and a cathode chamber disposed within the electrolytic cell;

[0012] The electrolytic cell is used to circulate the seawater solution; the anode chamber is used to generate chlorine gas through a chlorine evolution reaction driven by electrical energy; the cathode chamber is used to generate hydrogen gas and calcium carbonate aqueous solution through a hydrogen evolution reaction driven by electrical energy.

[0013] Optionally, the hydrochloric acid generation unit specifically includes: a gas drying and purification unit, a synthesis furnace, and a hydrochloric acid storage tank connected in sequence; the gas drying and purification unit is connected to the anode chamber and the cathode chamber respectively;

[0014] The gas drying and purification unit is used to dry and purify the hydrogen and chlorine.

[0015] The synthesis furnace is used to react dried and purified hydrogen and dried and purified chlorine to produce hydrochloric acid;

[0016] The hydrochloric acid storage tank is used to store the hydrochloric acid.

[0017] Optionally, the gas drying and purification unit specifically includes: a hydrogen drying and purification device, a chlorine drying and purification device, a hydrogen storage tank, and a chlorine storage tank;

[0018] The inlet of the hydrogen drying and purification device is connected to the cathode chamber; the inlet of the chlorine drying and purification device is connected to the anode chamber; the inlet of the hydrogen storage tank is connected to the outlet of the hydrogen drying and purification device; and the chlorine storage tank is connected to the outlet of the chlorine drying and purification device.

[0019] Optionally, the calcium carbonate generating unit specifically includes: a calcium carbonate filter, a residual liquid container, and a calcium carbonate storage tank;

[0020] The inlet of the calcium carbonate filter is connected to the outlet of the cathode chamber; one inlet of the residual liquid container is connected to the outlet of the anode chamber; another inlet of the residual liquid container is connected to one outlet of the calcium carbonate filter; and the calcium carbonate storage tank is connected to the other outlet of the calcium carbonate filter.

[0021] Optionally, the electrically driven seawater carbon sequestration system further includes: a seawater pretreatment unit; the seawater pretreatment unit specifically includes: a seawater tank, a water pump, and a seawater filtration device;

[0022] The outlet of the seawater tank is connected to one end of the water pump; the other end of the water pump is connected to the inlet of the seawater filtration device; and the outlet of the seawater filtration device is connected to the electrolytic cell.

[0023] Optionally, the electrically driven seawater carbon sequestration system further includes: an electrically driven unit; the electrically driven unit specifically includes: a transformer, a rectifier, and a grounding device;

[0024] The transformer is connected to the rectifier; the rectifier is connected to the anode chamber; and the grounding device is connected to the cathode chamber.

[0025] Optionally, the hydrogen drying and purification device includes: a hydrogen scrubbing tower and a gas-water separator connected in sequence; the chlorine drying and purification device includes: a chlorine scrubbing tower and a bubble cap drying tower connected in sequence.

[0026] Optionally, the anode material of the anode chamber is a multi-element coated titanium-based electrode.

[0027] Optionally, the cathode material of the cathode chamber is a nickel-based material.

[0028] According to specific embodiments provided by the present invention, the present invention discloses the following technical effects:

[0029] The purpose of this invention is to provide an electrically driven seawater carbon sequestration system. In the hydrogen and chlorine electrolysis unit, the system employs a more readily occurring anodic chlorine evolution reaction to electrolyze seawater solution, replacing the less controllable oxygen evolution reaction in existing electrolysis technologies. Simultaneously, the system fully utilizes a hydrochloric acid generation unit to perform secondary treatment on the hydrogen and chlorine gases produced after seawater electrolysis, yielding hydrochloric acid as a product. Furthermore, a calcium carbonate generation unit filters the calcium carbonate solution produced during seawater electrolysis, ultimately obtaining solid calcium carbonate as a product. The collected hydrochloric acid and solid calcium carbonate can then be sold again, allowing the system to fully utilize seawater resources and avoid energy loss and consumption. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the first module structure of an electrically driven seawater carbon sequestration system according to the present invention.

[0032] Figure 2This is a schematic diagram of the second module structure of an electrically driven seawater carbon sequestration system according to the present invention.

[0033] Symbol explanation:

[0034] Hydrogen and chlorine electrolysis unit-1, electrolytic cell-11, anode chamber-111, cathode chamber-112, hydrochloric acid generation unit-2, gas drying and purification unit-21, hydrogen drying and purification device-211, chlorine drying and purification device-212, hydrogen storage tank-213, chlorine storage tank-214, synthesis furnace-22, hydrochloric acid storage tank-23, calcium carbonate generation unit-3, calcium carbonate filter-31, residual liquid container-32, calcium carbonate storage tank-33, seawater pretreatment unit-4, seawater tank-41, water pump-42, seawater filtration device-43, electric power drive unit-5, transformer-51, rectifier-52, grounding device-53. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] The purpose of this invention is to provide an electrically driven seawater carbon fixation system that uses the more readily occurring anodic chlorine evolution reaction instead of the oxygen evolution reaction. At the same time, the hydrogen and chlorine produced after seawater electrolysis are subjected to secondary treatment, ultimately yielding hydrochloric acid and solid calcium carbonate as two products. This fully utilizes seawater resources and avoids energy loss and consumption.

[0037] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0038] Example 1

[0039] This embodiment provides an electrically driven seawater carbon sequestration system, such as... Figure 1 and Figure 2As shown, the system includes: a hydrogen-chlorine electrolysis unit 1, a hydrochloric acid generation unit 2, and a calcium carbonate generation unit 3. The hydrogen-chlorine electrolysis unit 1 is used to electrolyze seawater solution under electrical energy to generate hydrogen, chlorine, and a calcium carbonate aqueous solution. Specifically, the hydrogen-chlorine electrolysis unit 1 includes: an electrolytic cell 11 and an anode chamber 111 and a cathode chamber 112 disposed within the electrolytic cell 11; the electrolytic cell 11 is a diaphragm electrolytic cell, and the diaphragm is Zirfon; the anode material in the anode chamber 111 is a multi-layered titanium-based electrode, such as Ti / RuO2-IrO2-SnO2-Sb2O2; the cathode material in the cathode chamber 112 is a nickel-based material, such as Ni / Nb2O2. The electrolytic cell 11 is used to introduce seawater solution; the anode chamber 111 is used to generate chlorine gas through a chlorine evolution reaction under electrical energy; the cathode chamber 112 is used to generate hydrogen and a calcium carbonate aqueous solution through a hydrogen evolution reaction under electrical energy. Specifically, the seawater solution undergoes an electrolytic reaction within electrolytic cell 11 under the drive of electrical energy. The reaction principle within electrolytic cell 11 is as follows:

[0040] 2NaCl+2H2O→Cl2(g)+H2(g)+2NaOH(aq)

[0041] Similarly, driven by electrical energy, a chlorine evolution reaction occurs in the anode chamber 111, generating chlorine gas. The reaction principle of the anode chamber 111 is as follows:

[0042] 2Cl - -2e - →Cl2(g)

[0043] Meanwhile, in cathode chamber 112, a hydrogen evolution reaction occurs. This reaction produces hydrogen gas and sodium hydroxide, which provides an alkaline environment for the electrolysis reaction. This alkaline environment allows more seawater solution to be converted into carbonate ions, which then combine with calcium ions to form a calcium carbonate solution. The reaction principle in cathode chamber 112 is as follows:

[0044] 2H2O+2e - →H2(g) + 2OH -

[0045]

[0046]

[0047] Further, the hydrochloric acid generation unit 2 is connected to the hydrogen and chlorine electrolysis unit 1, and is used to generate hydrochloric acid using hydrogen and chlorine. Specifically, the hydrochloric acid generation unit 2 includes: a gas drying and purification unit 21, a synthesis furnace 22, and a hydrochloric acid storage tank 23 connected in sequence. The hydrochloric acid storage tank 23 is made of materials including, but not limited to, plastic and fiberglass. The gas drying and purification unit 21 is connected to the anode chamber 111 and the cathode chamber 112 respectively; the gas drying and purification unit 21 is used to dry and purify hydrogen and chlorine; the synthesis furnace 22 is used to react the dried and purified hydrogen and dried and purified chlorine to generate hydrochloric acid; the hydrochloric acid storage tank 23 is used to store the hydrochloric acid generated in the reaction. The gas drying and purification unit 21 includes: a hydrogen drying and purification device 211, a chlorine drying and purification device 212, a hydrogen storage tank 213, and a chlorine storage tank 214; the hydrogen drying and purification device 211 further includes: a hydrogen scrubbing tower and a gas-water separator connected in sequence; the chlorine drying and purification device 212 further includes: a chlorine scrubbing tower and a bubble cap drying tower connected in sequence. The inlet of the hydrogen drying and purification device 211 is connected to the cathode chamber 112; the inlet of the chlorine drying and purification device 212 is connected to the anode chamber 111; the inlet of the hydrogen storage tank 213 is connected to the outlet of the hydrogen drying and purification device 211; and the chlorine storage tank 214 is connected to the outlet of the chlorine drying and purification device 212. Specifically, since the chlorine produced in the anode chamber 111 and the hydrogen produced in the cathode chamber 112 are not pure gases, but are mixed gases containing water vapor or other impurities, the chlorine produced in the anode chamber 111 needs to pass through the chlorine scrubbing tower and the bubble drying tower in the chlorine drying and purification device 212 in sequence. The chlorine scrubbing tower removes other impurities from the chlorine, and the bubble drying tower dries and purifies the treated chlorine. Similarly, the hydrogen produced in the cathode chamber 112 also needs to pass through the hydrogen scrubbing tower and the gas-water separator in the hydrogen drying and purification device 211 in sequence. The hydrogen scrubbing tower removes water vapor and impurities from the hydrogen, and the bubble drying tower dries and purifies the treated hydrogen. After drying and purification, the chlorine gas will be stored in chlorine storage tank 214, and the hydrogen gas will be stored in hydrogen storage tank 213. The synthesis furnace 22 will use the chlorine gas in chlorine storage tank 214 and the hydrogen gas in hydrogen storage tank 213 to prepare hydrochloric acid. The reaction principle in the synthesis furnace 22 is as follows:

[0048] Cl2(g) + H2(g) → 2HCl

[0049] The hydrochloric acid produced in the synthesis furnace 22 will be stored in the hydrochloric acid storage tank 23 for resale. The whole process makes reasonable use of the hydrogen and chlorine produced by the seawater electrolysis reaction, without wasting any gas.

[0050] Furthermore, the calcium carbonate generation unit 3, connected to the hydrogen-chlorine electrolysis unit 1, is used to treat the calcium carbonate aqueous solution to produce solid calcium carbonate. The calcium carbonate generation unit 3 specifically includes: a calcium carbonate filter 31, a residual liquid container 32, and a calcium carbonate storage tank 33. The calcium carbonate filter 31 is a Pall barrel filter. The inlet of the calcium carbonate filter 31 is connected to the outlet of the cathode chamber 112; one inlet of the residual liquid container 32 is connected to the outlet of the anode chamber 111; another inlet of the residual liquid container 32 is connected to one outlet of the calcium carbonate filter 31; and the calcium carbonate storage tank 33 is connected to the other outlet of the calcium carbonate filter 31. Specifically, the calcium carbonate aqueous solution produced in the cathode chamber 112 is filtered through the calcium carbonate filter 31 to remove water and obtain solid calcium carbonate, which is then stored in the calcium carbonate storage tank 33. The residual liquid container 32 collects the water produced during the filtration of the calcium carbonate aqueous solution and excess seawater solution from the electrolytic cell 11, achieving secondary recovery of the reaction products.

[0051] Furthermore, this embodiment provides an electrically driven seawater carbon sequestration system that also includes: a seawater pretreatment unit 4 and an electrically driven unit 5; the seawater pretreatment unit 4 specifically includes: a seawater tank 41, a water pump 42, and a seawater filtration device 43; the electrically driven unit 5 specifically includes: a transformer 51, a rectifier 52, and a grounding device 53. The outlet of the seawater tank 41 is connected to one end of the water pump 42; the other end of the water pump 42 is connected to the inlet of the seawater filtration device 43; the outlet of the seawater filtration device 43 is connected to the electrolytic cell 11; the transformer 51 is connected to the rectifier 52; the rectifier 52 is connected to the anode chamber 111; and the grounding device 53 is connected to the cathode chamber 112. Specifically, to improve the efficiency of the chemical reaction within the electrolytic cell 11, the seawater solution needs to be pretreated before being introduced into the electrolytic cell 11 to remove large particles and suspended solids. The seawater is pumped from the seawater tank 41 into the seawater filtration device 43 using a water pump 42. The seawater filtration device 43 employs an automatic backwash filter to efficiently remove suspended solids and particulate matter from the seawater. The filtered seawater solution is then introduced into the electrolytic cell 11, providing a pure electrolyte solution for the electrolytic reaction. In addition to the pure electrolyte solution, the electrolytic reaction also requires electrical energy. The transformer 51 and rectifier 52 convert AC power into DC power, providing electrical energy to the electrolytic cell 11. The grounding device 53 is connected to the cathode chamber 112, providing grounding protection for the circuit.

[0052] Example 2

[0053] This embodiment provides a practical application scenario for an electrically driven seawater carbon sequestration system. The specific workflow is as follows:

[0054] Seawater in seawater tank 41 is pumped into seawater filtration device 43 by water pump 42. Seawater filtration device 43 removes large particles and suspended solids from seawater to obtain pretreated seawater solution. The pretreated seawater solution will be used as electrolyte and fed into electrolytic cell 11.

[0055] To provide sufficient electrical energy to the electrolytic cell 11, the power supply sequentially passes through transformer 51 and rectifier 52 to convert alternating current into direct current. Simultaneously, grounding device 53 provides grounding protection for the circuit. Driven by electrical energy, the anode chamber 111 of the electrolytic cell 11 undergoes a chlorine evolution reaction, producing chlorine gas; the cathode chamber 112 of the electrolytic cell 11 undergoes a hydrogen evolution reaction, producing hydrogen gas and sodium hydroxide. Sodium hydroxide provides an alkaline environment for the electrolysis reaction, allowing dissolved carbon in seawater to be converted into more carbonate ions under alkaline conditions. These carbonate ions combine with calcium ions to form calcium carbonate precipitate.

[0056] To obtain solid calcium carbonate, the calcium carbonate aqueous solution produced in the cathode chamber 112 is passed into the calcium carbonate filter 31. The calcium carbonate filter 31 removes excess water from the calcium carbonate aqueous solution, yielding solid calcium carbonate, which is then stored in the calcium carbonate storage tank 33. Simultaneously, the remaining seawater solution discharged from the anode chamber 111, along with the water filtered by the calcium carbonate filter 31, is collected in the residual liquid container 32. The collected liquid can also be used as feed for the seawater desalination plant, reducing the degree of carbonate scaling in the plant.

[0057] This system, while performing carbon sequestration in seawater, also produces hydrogen and chlorine as gaseous byproducts. To optimize resource utilization, the chlorine produced in the anode chamber 111 is passed into a chlorine drying and purification unit 212, where it is successively dried and purified through a chlorine scrubbing tower and a bubble cap drying tower. Simultaneously, the hydrogen produced in the cathode chamber 112 is passed into a hydrogen drying and purification unit 211, where it is successively dried and purified through a hydrogen scrubbing tower and a gas-liquid separator. The dried and purified chlorine then enters the synthesis furnace 22 through a chlorine storage tank 214, while the dried and purified hydrogen enters the synthesis furnace 22 through a hydrogen storage tank 213. There, a redox reaction occurs, producing hydrochloric acid. The final hydrochloric acid is stored in a hydrochloric acid storage tank 23 and can be sold.

[0058] This invention provides an electrically driven seawater carbon sequestration system. Seawater undergoes simple pretreatment to obtain pretreated seawater, which serves as the electrolyte in an electrolyzer 11. Driven by electricity, the alkaline environment provided by the electrolyzer 11 causes more dissolved carbon in the seawater to be converted into carbonate ion variants, which then combine with calcium ions in the seawater to form a solid precipitate of calcium carbonate. The resulting solid precipitate is separated from the seawater by a seawater filtration device 43. The hydrogen and chlorine generated in the electrolyzer 11 further react in a synthesis furnace 22 to produce hydrochloric acid. Through this system, dissolved carbon in the seawater is captured and safely and permanently stored as calcium carbonate, effectively reducing CO2 emissions. The byproducts of calcium carbonate and hydrochloric acid generated by the system have additional value. In-situ capture of dissolved carbon has lower energy consumption, reducing the system's cost.

[0059] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0060] This document uses specific examples to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of the present invention. Furthermore, those skilled in the art will recognize that, based on the ideas of the present invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. An electrically powered seawater carbon capture system, characterized in that, The application relates to a hydrogen-chlorine electrolysis unit for electrolyzing seawater solution under the drive of electric energy to generate hydrogen, chlorine and calcium carbonate aqueous solution; a hydrochloric acid generating unit connected with the hydrogen-chlorine electrolysis unit for generating hydrochloric acid by using the hydrogen and the chlorine; and a calcium carbonate generating unit connected with the hydrogen-chlorine electrolysis unit for treating the calcium carbonate aqueous solution to generate solid calcium carbonate. The hydrogen-chlorine electrolysis unit specifically comprises an electrolytic cell and anode and cathode chambers arranged in the electrolytic cell; the electrolytic cell is used for feeding the seawater solution; the anode chamber is used for generating chlorine under the drive of electric energy; and the cathode chamber is used for generating hydrogen and calcium carbonate aqueous solution under the drive of electric energy. The hydrochloric acid generating unit specifically comprises a gas drying and purifying unit, a synthesis furnace and a hydrochloric acid storage tank connected in sequence; the gas drying and purifying unit is connected with the anode chamber and the cathode chamber respectively; the gas drying and purifying unit is used for drying and purifying the hydrogen and the chlorine; the synthesis furnace is used for reacting the dried and purified hydrogen and the dried and purified chlorine to generate hydrochloric acid; and the hydrochloric acid storage tank is used for storing the hydrochloric acid. The gas drying and purifying unit specifically comprises a hydrogen drying and purifying device, a chlorine drying and purifying device, a hydrogen storage tank and a chlorine storage tank; the gas inlet of the hydrogen drying and purifying device is connected with the cathode chamber; the gas inlet of the chlorine drying and purifying device is connected with the anode chamber; the gas inlet of the hydrogen storage tank is connected with the gas outlet of the hydrogen drying and purifying device; and the chlorine storage tank is connected with the gas outlet of the chlorine drying and purifying device. The calcium carbonate generating unit specifically comprises a calcium carbonate filter, a residual liquid containing box and a calcium carbonate storage tank; the inlet of the calcium carbonate filter is connected with the outlet of the cathode chamber; one inlet of the residual liquid containing box is connected with the outlet of the anode chamber; another inlet of the residual liquid containing box is connected with one outlet of the calcium carbonate filter; and the calcium carbonate storage tank is connected with another outlet of the calcium carbonate filter; wherein the calcium carbonate aqueous solution generated by the cathode chamber is fed into the calcium carbonate filter, the calcium carbonate filter is used for filtering out the excessive water in the calcium carbonate aqueous solution to obtain solid calcium carbonate, and the solid calcium carbonate is stored in the calcium carbonate storage tank; and the residual seawater solution discharged from the anode chamber and the water generated by the calcium carbonate filter are collected in the residual liquid containing box. ​ ​ ​ The hydrogen drying and purifying device comprises a hydrogen washing tower and a steam-water separator connected in sequence; the chlorine drying and purifying device comprises a chlorine washing tower and a bubble cap drying tower connected in sequence; the chlorine generated by the anode chamber is introduced into the chlorine drying and purifying device, and the drying and purification of the chlorine is completed by sequentially passing through the chlorine washing tower and the bubble cap drying tower; the hydrogen generated by the cathode chamber is introduced into the hydrogen drying and purifying device, and the drying and purification of the hydrogen is completed by sequentially passing through the hydrogen washing tower and the steam-water separator; the dried and purified chlorine passes through the chlorine storage tank and enters the synthesis furnace, the dried and purified hydrogen passes through the hydrogen storage tank and enters the synthesis furnace, and a redox reaction occurs in the synthesis furnace to generate hydrochloric acid, and the obtained hydrochloric acid is stored in the hydrochloric acid storage tank. The anode material of the anode chamber is a multi-element coated titanium-based electrode, and the cathode material of the cathode chamber is a nickel-based material.

2. The system of claim 1, wherein, The seawater carbon fixation system driven by electric energy further comprises a seawater pretreatment unit, which specifically comprises a seawater tank, a water pump and a seawater filtering device. The outlet of the seawater tank is connected with one end of the water pump, the other end of the water pump is connected with the inlet of the seawater filtering device, and the outlet of the seawater filtering device is connected with the electrolytic cell.

3. The system of claim 1, wherein the system is powered by electricity. The seawater carbon fixation system driven by electric energy further comprises an electric energy driving unit, which specifically comprises a transformer, a rectifier and a grounding device. The transformer is connected with the rectifier, the rectifier is connected with the anode chamber, and the grounding device is connected with the cathode chamber.

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