CN215517653U - Device for producing hydrogen by electrolyzing recovered plastic - Google Patents
Device for producing hydrogen by electrolyzing recovered plastic Download PDFInfo
- Publication number
- CN215517653U CN215517653U CN202121648367.6U CN202121648367U CN215517653U CN 215517653 U CN215517653 U CN 215517653U CN 202121648367 U CN202121648367 U CN 202121648367U CN 215517653 U CN215517653 U CN 215517653U
- Authority
- CN
- China
- Prior art keywords
- hydrogen
- container
- ethylene glycol
- anode container
- communicated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model belongs to the technical field of electrolytic hydrogen production, and particularly relates to a device for producing hydrogen by electrolyzing recycled plastic. The device for producing hydrogen by electrolyzing recycled plastic comprises: an electrolytic cell partitioned into a cathode container and an anode container by an anion exchange membrane; the ethylene glycol feeding pipe is communicated with the anode container and is used for inputting ethylene glycol into the anode container; and the hydrogen collecting pipe is communicated with the cathode container and is used for collecting the hydrogen produced by electrolysis. The device for producing hydrogen by electrolyzing recycled plastic disclosed by the utility model has the beneficial effects that the device for producing hydrogen by recycling plastic is divided into the cathode container and the anode container by the anion exchange membrane, ethylene glycol is input into the anode container through the ethylene glycol feeding pipe, hydrogen can be produced in the cathode container, oxygen is not produced in the anode container, the ethylene glycol is oxidized into glycolic acid, the safety is improved, and simultaneously, a value-added product glycolic acid can be produced.
Description
Technical Field
The utility model belongs to the technical field of electrolytic hydrogen production, and particularly relates to a device for producing hydrogen by electrolyzing recycled plastic.
Background
The purity of the hydrogen prepared by the water electrolysis method can reach more than 99 percent, which is an important method for preparing the hydrogen industrially. When a sodium (potassium) hydroxide solution is electrolyzed, oxygen gas is released from the anode and hydrogen gas is released from the cathode, as shown in fig. 1. And (3) cathode reaction: 4e- + 4H2O = 4OH- + 2H2And (3) anode reaction: 4OH- = 2H2O + 4e- + O2。
However, when hydrogen is prepared by the traditional water electrolysis method, the product of the anode is oxygen, the generated oxygen and hydrogen are easy to mix, potential safety hazards are brought, and meanwhile, the safety requirement on equipment is high, and the production cost is high.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a device for producing hydrogen by electrolyzing recycled plastics, which solves the technical problem.
In order to solve the technical problem, the utility model provides a device for producing hydrogen by electrolyzing recycled plastics, which comprises: an electrolytic cell partitioned into a cathode container and an anode container by an anion exchange membrane; the ethylene glycol feeding pipe is communicated with the anode container and is used for inputting ethylene glycol into the anode container; and the hydrogen collecting pipe is communicated with the cathode container and is used for collecting the hydrogen produced by electrolysis.
Further, the ethylene glycol feeding pipe is communicated with a plastic pretreatment device; and the ethylene glycol generated by the plastic pretreatment device is input into the anode container through an ethylene glycol feeding pipe.
Furthermore, the electrodes in the cathode container and the anode container are foam nickel electrodes.
Further, the device for producing hydrogen by electrolyzing the recycled plastic also comprises: and the glycolic acid collecting device is communicated with the anode container and is used for collecting glycolic acid generated in the anode container.
Further, the glycolic acid collecting device comprises: and the acid-base neutralization device is communicated with the anode container and is used for neutralizing the reaction liquid discharged from the anode container.
Further, the glycolic acid collecting device further comprises: and the filtering device is communicated with the acid-base neutralizing device and is used for filtering the solution discharged by the acid-base neutralizing device.
Further, the glycolic acid collecting device further comprises: and the heating device is communicated with the filtering device and is used for heating the filtrate discharged from the filtering device to obtain the solid glycolic acid.
The device for producing hydrogen by electrolyzing recycled plastic disclosed by the utility model has the beneficial effects that the device for producing hydrogen by recycling plastic is divided into the cathode container and the anode container by the anion exchange membrane, ethylene glycol is input into the anode container through the ethylene glycol feeding pipe, hydrogen can be produced in the cathode container, oxygen is not produced in the anode container, the ethylene glycol is oxidized into glycolic acid, the safety is improved, and simultaneously, a value-added product glycolic acid can be produced.
Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic diagram of electrolytic hydrogen production;
FIG. 2 is a schematic diagram of an apparatus for producing hydrogen by electrolysis of recycled plastic according to the present invention.
In the figure:
the device comprises an electrolytic cell 1, an anion exchange membrane 11, a cathode container 12, an anode container 13, an ethylene glycol feeding pipe 14, a hydrogen collecting pipe 15 and a foamed nickel electrode 16;
a plastic pretreatment device 2;
glycolic acid collection device 3, acid-base neutralization device 31, filter equipment 32, heating device 33.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
As shown in fig. 2, this embodiment provides an apparatus for producing hydrogen by electrolyzing recycled plastic, comprising: an electrolytic cell 1 partitioned into a cathode container 12 and an anode container 13 by an anion exchange membrane 11; an ethylene glycol feed pipe 14, which is communicated with the anode container 13 and is used for inputting ethylene glycol into the anode container 13; and a hydrogen collecting pipe 15 communicated with the cathode container 12 for collecting hydrogen produced by electrolysis.
In this embodiment, the apparatus for producing hydrogen by electrolysis using recycled plastic is separated into a cathode container 12 and an anode container 13 by an anion exchange membrane 11, and ethylene glycol can be fed into the anode container through an ethylene glycol feed tube 14 to produce hydrogen in the cathode container 12, and ethylene glycol is oxidized into glycolic acid without generating oxygen in the anode container 13, so that the safety is improved and the value-added product glycolic acid can be produced.
In this embodiment, the electrolyte in the electrolytic cell 1 may be potassium hydroxide solution, and the electrodes in the cathode container 12 and the anode container 13 may be, but are not limited to, foamed nickel electrodes 16.
In this embodiment, it is preferable that the ethylene glycol feeding pipe 14 is communicated with the plastic pretreatment device 2; ethylene glycol generated by the plastic pretreatment device 2 is input into the anode container 13 through an ethylene glycol feeding pipe 14.
In the embodiment, the plastic can be degraded by the plastic pretreatment device 2 to obtain ethylene glycol, and then the ethylene glycol is fed into the anode container 13 through the ethylene glycol feeding pipe 14; the anode raw material ethylene glycol can be obtained by plastic recovery, and the purpose of environmental protection is achieved.
In one application scenario, the plastic pretreatment device 2 can produce ethylene glycol in an alternative manner: larval wax worms, which can be but are not limited to wax moths, isolate an intestinal bacterium from their bodies that can degrade plastics into ethylene glycol.
In this example, after the energization, hydrogen gas is generated in the cathode container 12, ethylene glycol is added to the solution in the anode container 13, no gas is generated, and ethylene glycol is oxidized to glycolic acid. In order to realize the collection of glycolic acid, the device for producing hydrogen by electrolyzing the recycled plastic preferably further comprises: and a glycolic acid collecting means 3 which communicates with the anode container 13 and collects glycolic acid generated in the anode container 13.
As an alternative embodiment of the glycolic acid collecting means 3, said glycolic acid collecting means 3 comprises: an acid-base neutralization device 31 which is communicated with the anode container 13 and is used for neutralizing the reaction liquid discharged from the anode container 13; the filtering device 32 is communicated with the acid-base neutralization device 31 and is used for filtering the solution discharged by the acid-base neutralization device 31; and a heating device 33 which is communicated with the filtering device 32 and is used for heating the filtrate discharged from the filtering device 32 to obtain the solid glycolic acid.
In one application scenario, the anodic reaction solution is introduced into an acid-base neutralization device 31, sulfuric acid is added and fully stirred until the solution is neutral, then sufficient anhydrous isopropanol is added into the solution, after uniform mixing, the solution is desalted through a filtering device 32, the filtrate is an aqueous solution of glycolic acid and isopropanol, and finally water and isopropanol are removed in a heating device 33, so that glycolic acid solid is obtained.
In conclusion, the device for preparing hydrogen by electrolyzing recycled plastic is divided into the cathode container 12 and the anode container 13 by the anion exchange membrane 11, ethylene glycol can be input into the anode container through the ethylene glycol feeding pipe 14, hydrogen can be prepared in the cathode container 12, oxygen is not generated in the anode container 13, the ethylene glycol is oxidized into glycolic acid, the potential safety hazard caused by mixing of the hydrogen and the oxygen is avoided, the safety is improved, and simultaneously, a value-added product glycolic acid can be prepared; the plastic can be degraded by the plastic pretreatment device 2 to prepare ethylene glycol, and then the ethylene glycol is input into the anode container 13 through the ethylene glycol feeding pipe 14; the anode raw material ethylene glycol can be obtained by plastic recovery, and the aim of environmental protection is fulfilled; the overpotential of the anode for producing hydrogen by electrolysis can be effectively reduced, the purpose of energy conservation is achieved, and low carbon is realized by providing electric energy through clean energy such as solar energy.
The components selected for use in the present application (components not illustrated for specific structures) are all common standard components or components known to those skilled in the art, and the structure and principle thereof can be known to those skilled in the art through technical manuals or through routine experimentation.
In the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations can be made by the worker in the light of the above teachings without departing from the spirit of the utility model. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (7)
1. An apparatus for producing hydrogen by electrolysis of recycled plastic, comprising:
an electrolytic cell (1) partitioned into a cathode container (12) and an anode container (13) by an anion exchange membrane (11);
the ethylene glycol feeding pipe (14) is communicated with the anode container (13) and is used for inputting ethylene glycol into the anode container (13); and
and the hydrogen collecting pipe (15) is communicated with the cathode container (12) and is used for collecting the hydrogen produced by electrolysis.
2. The apparatus for electrolytic production of hydrogen from recycled plastic as claimed in claim 1,
the ethylene glycol feeding pipe (14) is communicated with the plastic pretreatment device (2);
ethylene glycol generated by the plastic pretreatment device (2) is input into the anode container (13) through an ethylene glycol feeding pipe (14).
3. The apparatus for electrolytic production of hydrogen from recycled plastic as claimed in claim 1,
the electrodes in the cathode container (12) and the anode container (13) are foam nickel electrodes (16).
4. The apparatus for electrolytic production of hydrogen from recycled plastic as claimed in claim 1, further comprising:
and a glycolic acid collecting device (3) which is communicated with the anode container (13) and is used for collecting glycolic acid generated in the anode container (13).
5. The apparatus for electrolytic production of hydrogen from recycled plastic as claimed in claim 4,
the glycolic acid collection device (3) comprises: and the acid-base neutralization device (31) is communicated with the anode container (13) and is used for neutralizing the reaction liquid discharged from the anode container (13).
6. The apparatus for electrolytic production of hydrogen from recycled plastic as claimed in claim 5,
the glycolic acid collection device (3) further comprises: and the filtering device (32) is communicated with the acid-base neutralizing device (31) and is used for filtering the solution discharged by the acid-base neutralizing device (31).
7. The apparatus for electrolytic production of hydrogen from recycled plastic as claimed in claim 6,
the glycolic acid collection device (3) further comprises: and the heating device (33) is communicated with the filtering device (32) and is used for heating the filtrate discharged from the filtering device (32) to obtain the solid glycolic acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121648367.6U CN215517653U (en) | 2021-07-20 | 2021-07-20 | Device for producing hydrogen by electrolyzing recovered plastic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121648367.6U CN215517653U (en) | 2021-07-20 | 2021-07-20 | Device for producing hydrogen by electrolyzing recovered plastic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215517653U true CN215517653U (en) | 2022-01-14 |
Family
ID=79814028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121648367.6U Active CN215517653U (en) | 2021-07-20 | 2021-07-20 | Device for producing hydrogen by electrolyzing recovered plastic |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215517653U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114959749A (en) * | 2022-05-16 | 2022-08-30 | 中国科学院理化技术研究所 | Method for preparing glycolate by electrocatalysis of ethylene glycol or electrocatalysis reforming waste plastic PET |
-
2021
- 2021-07-20 CN CN202121648367.6U patent/CN215517653U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114959749A (en) * | 2022-05-16 | 2022-08-30 | 中国科学院理化技术研究所 | Method for preparing glycolate by electrocatalysis of ethylene glycol or electrocatalysis reforming waste plastic PET |
| CN114959749B (en) * | 2022-05-16 | 2023-09-29 | 中国科学院理化技术研究所 | Method for preparing glycolate through electrocatalytic glycol or electrocatalytic reforming of waste plastic PET |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110616438B (en) | Device and method for electrochemically preparing high-purity battery-grade lithium hydroxide | |
| CN113774399B (en) | Method for co-producing hydrogen, formic acid and terephthalic acid from waste PET plastic through electrocatalytic | |
| CN215517653U (en) | Device for producing hydrogen by electrolyzing recovered plastic | |
| CN101713078A (en) | Device and method for preparing potassium ferrate through electrolysis | |
| CN103866344A (en) | Method for preparing nitric acid through electrolysis | |
| CN211645405U (en) | Device for preparing hydrogen and oxygen by electrolyzing water | |
| CN106976894B (en) | A kind of method that lithium chloride electrotransformation directly prepares lithium carbonate | |
| JP2022551135A (en) | Method and electrolysis apparatus for producing chlorine, carbon monoxide and optionally hydrogen | |
| CN105696017B (en) | A kind of new technique method of iron reduction nitrobenzene | |
| CN104862730B (en) | A kind of method that electrolysis with ion-exchange film prepares potassium permanganate | |
| CN113666367B (en) | Electrolytic tank for preparing graphite intercalation and preparation method of graphite intercalation | |
| CN103266329A (en) | Electrochemical method for synthesizing 2,2'-dichlorohydrazobenzene by use of supported catalyst ionic membrane | |
| CN101864578B (en) | Method for preparing peroxysulfuric acid by sonoelectrochemical method | |
| CN1065005C (en) | Process of electrochemical oxygen generation by cathode and its oxygen generating box | |
| CN113249740A (en) | Method for preparing graphene by electrochemical continuous and synchronous stripping and reduction | |
| CN1249361A (en) | Apparatus and method for electrochemically producing oxygen with air cathode | |
| CN103384732A (en) | Large electrolytic vessel and electrolysis-stopping method | |
| CN113430547A (en) | Device for preparing potassium formate by electrolyzing carbon dioxide and electrolysis method | |
| CN110016687A (en) | Electrochemical preparation method of ethylene | |
| CN104593806A (en) | Method for preparing gas diffusion electrode for strongly acidic electrolyte | |
| CN219885968U (en) | Based on CO 2 Environment-friendly low-carbon salt chemical production system for resource utilization | |
| CN110158112B (en) | Electrochemical oxidation IO3-Conversion to IO4-By electrolysis of | |
| EP4353876A1 (en) | Process for obtaining terephthalic acid and recovering sodium hydroxide from a sodium terephthalate solution produced from reused polyethylene terephthalate (pet) | |
| CN218785070U (en) | Electrolytic aluminum waste carbon electrode wet separation device and resource utilization system | |
| CN207244009U (en) | A kind of energy saving and environment friendly high-purity soda equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |