CN113460958A - Integrated sodium borohydride hydrolysis hydrogen production machine - Google Patents
Integrated sodium borohydride hydrolysis hydrogen production machine Download PDFInfo
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- CN113460958A CN113460958A CN202110600716.5A CN202110600716A CN113460958A CN 113460958 A CN113460958 A CN 113460958A CN 202110600716 A CN202110600716 A CN 202110600716A CN 113460958 A CN113460958 A CN 113460958A
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- tank
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- hydrogen production
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
- C01B3/06—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of inorganic compounds containing electro-positively bound hydrogen, e.g. water, acids, bases, ammonia, with inorganic reducing agents
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
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Abstract
The invention discloses an integrated sodium borohydride hydrolysis hydrogen production machine, which comprises a cylindrical tank body, wherein the tank body comprises a reaction tank body unit positioned on the upper layer, a cleaning tank unit positioned on the lower layer and a hydrogen storage tank arranged on the upper layer; the reaction tank body unit comprises a hydrogen production tank and a raw material tank which are coaxially arranged; the cleaning tank unit comprises a waste tank, a plurality of water washing tanks and an alkali removing tank, wherein the water washing tanks and the alkali removing tank are arranged around the waste tank; the feed liquid outlet end of the raw material tank is communicated with the inlet end of the hydrogen production tank, the outlet end of the hydrogen production tank is communicated with the waste tank, the waste tank comprises a gas outlet end and a liquid outlet end, the gas outlet end is connected with the first water washing tank, the last water washing tank is connected with the first alkali removal tank, and the last alkali removal tank is connected with the hydrogen storage tank. The hydrogen production machine of the invention integrates the raw material tank, the hydrogen production tank, the water washing tank, the alkali removal tank, the hydrogen storage tank and the waste material tank into one tank, has simple structure, integrates the preparation, cleaning and storage of hydrogen into one device, and is convenient to operate.
Description
Technical Field
The invention belongs to the field of electrolytic hydrogen production equipment, and particularly relates to an integrated sodium borohydride hydrolysis hydrogen production machine.
Background
The construction of the renewable energy hydrogen production system is the premise of realizing a green hydrogen energy supply system. At present, 96% of hydrogen production in China mainly comes from fossil fuel hydrogen production and chemical secondary hydrogen production. Sodium borohydride is used as an excellent hydrogen storage material, the hydrogen storage density of the sodium borohydride can reach 10.8 wt%, and the regenerated product is pollution-free, high in hydrogen release purity and capable of being stored stably for a long time. The hydrolysis process is mild, the scale can be adjusted according to the needs of users, and the whole process is environment-friendly. The specific reaction process of hydrolyzing sodium borohydride to produce hydrogen adopted at present is shown as a formula (1):
NaBH4+2H2O → 4H2 +NaBO2 （1）
the hydrogen produced by the hydrolysis of sodium borohydride can be used as a power supply system of a Proton Exchange Membrane Fuel Cell (PEMFC), so the development of a sodium borohydride hydrogen production device is always a hot content at home and abroad. From the existing research reports and patents, a relatively large number of reaction devices for hydrogen production by hydrolysis of sodium borohydride are known. For example, patent CN03130002.2 discloses a device for producing hydrogen by hydrolyzing sodium borohydride, which comprises a casing, a stirrer, a feeding tube and an air outlet, and is characterized in that the reactor is provided with an evaporation chamber arranged in the casing, a condensation chamber arranged outside the casing and a double-chamber connected-tube vapor-liquid circulation heat exchanger formed by communicating tubes between the evaporation chamber and the condensation chamber. Patent CN200810198544.8 discloses a hydrogen production reaction device from sodium borohydride, which adopts a low-power hydraulic pump, and controls the reaction speed and the hydrogen generation amount by automatically adjusting the flow rate of the sodium borohydride solution added into the reaction chamber according to the reaction conditions. Patent CN201420095666.5 proposes a hydrogen storage system for fuel cell, which is composed of a liquid storage tank containing sodium borohydride solution, a plurality of sub-reaction tanks and a condensing device. However, the sodium borohydride solution formulation requires a large amount of water, which adds a significant weight to the fuel cell system. Patent 201821440352.9 discloses a sodium borohydride hydrolysis hydrogen plant, the device can control the temperature of reaction traditional chinese medicine pure water, realizes taking place the reaction under the appointed temperature, through control vibrating device, realizes that the medicine can get into the reaction storehouse completely, and the reaction is complete, reduces extravagantly to in the preparation process, realize hydrogen manufacturing purity height through drying device and cooling device.
Although the existing sodium borohydride hydrolysis hydrogen production devices are more, most of the devices have larger volume and more power consumption and are inconvenient to carry.
Disclosure of Invention
Aiming at the problems of overlarge hydrogen production device by sodium borohydride and complex equipment in the prior art, the invention provides a portable hydrogen production device by sodium borohydride hydrolysis, which is of an integrated structure.
The technical purpose is achieved, the technical effect is achieved, and the invention is realized through the following technical scheme:
an integrated sodium borohydride hydrolysis hydrogen production machine comprises a cylindrical tank body, wherein the interior of the tank body is divided into an upper layer and a lower layer, and the integrated sodium borohydride hydrolysis hydrogen production machine comprises a reaction tank body unit positioned on the upper layer, a cleaning tank unit positioned on the lower layer and a hydrogen storage tank arranged on the upper layer of the tank body;
the reaction tank body unit comprises a hydrogen production tank and a raw material tank which are coaxially arranged; the washing tank unit comprises a waste tank, a plurality of washing tanks and an alkali removal tank, the washing tanks and the alkali removal tank are arranged around the waste tank, the washing tanks are sequentially communicated, and the alkali removal tank is sequentially communicated;
the feed liquid outlet end of head tank with the entrance point of system hydrogen jar communicates with each other, the exit end of system hydrogen jar with the canister communicates with each other, the canister includes gas outlet end and liquid outlet end, gas outlet end and first the washing jar links to each other, the last the washing jar with first it links to each other to remove the alkali jar, the last remove the alkali jar with the hydrogen storage tank links to each other.
As a further improvement of the invention, the hydrogen production tank further comprises a plurality of lamella catalyst layers arranged on the hydrogen production tank, wherein the lamella catalyst layers comprise two groups of lamella catalyst layers arranged on the left side and the right side, the lamella catalyst layers on the same side are arranged in parallel, the lamella catalyst layers are arranged from the edge of the tank body to the center of the tank body in an inclined downward manner, the lamella catalyst layers on the two sides are arranged in a staggered manner from top to bottom, and the lowest point of the lamella catalyst layer on one side is positioned in the gap position of two adjacent lamella catalyst layers on the other side.
In a further improvement of the present invention, the diameter of the canister is equal to the diameter of the raw material tank, the hydrogen production tank is fitted in the raw material tank at a position corresponding to the central axis of the raw material tank, and the canister is located directly below the hydrogen production tank.
In a further improvement of the present invention, the hydrogen storage tank is located outside the raw material tank and is provided in a ring surface with the water washing tank or the alkali removal tank.
As a further improvement of the invention, at least 4 water washing tanks and two alkali removal tanks are included.
As a further improvement of the invention, the water washing tank is used for introducing hydrogen into the bottom of the water washing tank through a gas pipe and discharging the hydrogen.
As a further improvement of the invention, in the alkali removing tank, hydrogen is introduced from the top position of the alkali removing tank.
As a further improvement of the present invention, a control system is further included, the control system including a power pump provided between the raw material tank and the hydrogen production tank, a flow meter provided on the hydrogen storage tank, and a plurality of control valves.
The invention has the beneficial effects that:
1. the hydrogen production machine of the invention integrates the raw material tank, the hydrogen production tank, the water washing tank, the alkali removal tank, the hydrogen storage tank and the waste material tank into one tank, has simple structure, integrates the preparation, cleaning and storage of hydrogen into one device, and is convenient to operate.
2. The control system is used for collecting the gas quantity, the pressure and the like, and controlling the preparation and the stop of the hydrogen at any time according to signals, so that the hydrogen production machine can be prepared according to the requirements, and the safe operation of the hydrogen production machine can be ensured.
3. The accessible control pump unit realizes that the medicine can get into the reaction storehouse completely, and wherein catalyst layer staggers in proper order and puts for the reaction is complete, and extravagant few, hydrogen manufacturing hydrogen storage process safety.
Drawings
FIG. 1 is a schematic diagram of a hydrogen production machine according to the present invention;
FIG. 2 is a schematic cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is a schematic view of the structure of a catalyst layer;
wherein: 1-raw material tank, 2-power pump, 3-hydrogen making tank, 4-hydrogen storage tank, 5-alkali removing tank, 6-air outlet, 7-waste material tank, 8-water washing tank, 9-discharge outlet, 10-control valve, 11-flowmeter, 12-feed inlet and 13-catalyst layer.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The following detailed description of the principles of the invention is provided in connection with the accompanying drawings.
The integrated sodium borohydride hydrolysis hydrogen production as shown in the figure adopts a cylindrical tank body, the inside of the tank body is divided into a plurality of functional areas, and hydrogen production and storage are integrated in one device. The internal partition of the tank body is divided into an upper layer and a lower layer, and comprises a reaction tank body unit positioned on the upper layer, a cleaning tank unit positioned on the lower layer and a hydrogen storage tank 4 arranged on the upper layer of the tank body.
The reaction tank body unit is used for hydrogen production reaction and comprises a hydrogen production tank 3 and a raw material tank 1 which are coaxially arranged, wherein the hydrogen production tank 3 is embedded in the position of the central shaft of the raw material tank 1; the hydrogen gas that the washing jar unit was used for purifying the preparation, including the wash tank 8 that waste material jar 7, a plurality of set up in order and remove alkali jar 5, wash tank 8 with remove alkali jar 5 around waste material jar 7 sets up.
According to the step of hydrogen production, the connection interface of each functional area feed liquid pipeline or gas pipeline does, the feed liquid outlet end of feed tank 1 with the entrance end of hydrogen making jar 3 communicates with each other, the exit end of hydrogen making jar 3 with waste material jar 7 communicates with each other, waste material jar 7 includes gas outlet end and liquid outlet end, gas outlet end and first water washing jar 8 links to each other, last water washing jar 8 with first remove alkali jar 5 and link to each other, last remove alkali jar 5 with hydrogen storage tank 4 links to each other.
In order to improve the efficiency of hydrogen production, the catalyst layer arranged in the hydrogen production tank 3 is of a structure that a plurality of lamellar catalyst layers are stacked in a staggered manner, and comprises two groups of lamellar catalyst layers arranged on the left side and the right side, the lamellar catalyst layers on the same side are arranged in parallel, the lamellar catalyst layers are arranged obliquely downwards from the edge of the tank body to the center of the tank body, the lamellar catalyst layers on the two sides are sequentially arranged in a staggered manner from top to bottom, and the lowest point of the lamellar catalyst layer on one side is positioned in the gap position of two adjacent lamellar catalyst layers on the other side. Therefore, each layer of catalyst can be utilized, the contact time and the contact area of the material liquid for reaction and the catalyst can be increased, and the reaction probability is provided.
The catalyst structure shown in FIG. 3 is a porous material, and each catalyst sheet has an area of about 30cm2。
In order to effectively plan each functional area and simultaneously ensure the smooth flowing of the material liquid and the gas, in the invention, the diameter of the waste material tank 7 is equal to that of the raw material tank 1, the waste material tank 7 is positioned right below the hydrogen production tank 3, and the reacted materials become waste materials and are dripped into the waste material tank 7 in the central area below the hydrogen production tank 3 from a hole at the bottom of the hydrogen production tank 3. The hydrogen storage tank 4 is positioned on the outer side of the raw material tank 1 and is arranged on the same ring surface with the water washing tank 8 or the alkali removing tank 5.
In addition, in order to improve the efficiency of cleaning hydrogen, the water washing tank 8 introduces hydrogen into the bottom of the water washing tank 8 through a gas pipe and discharges the hydrogen. In the alkali removal tank 5, hydrogen gas is introduced from the top position of the alkali removal tank 5. In the present embodiment, 4 water washing tanks 8 and two alkali removing tanks 5 are included, which are connected in series. The hydrogen that makes is carried the bottom of first washing jar 8 through the gas-supply pipe, is equipped with water in the washing jar 8, and the hydrogen is upward moved after letting in the bottom, through first washing, gets into the gas-supply pipe by the export at top, is sent to second washing jar 8 bottoms, carries out the second washing again, so circulation. The hydrogen after the four times of washing enters a first alkali removal tank 5 through a pipeline at the upper part, the alkali removal tank 5 is filled with small spherical solid particles, after the first time of alkali removal, the hydrogen enters the pipeline through a bottom outlet, enters the top of a second alkali removal tank 5, and then enters a hydrogen storage tank 4 through a bottom pipe orifice after the second time of alkali removal.
The system also comprises a control system which is used for providing power for the flowing of the material liquid and the gas, and simultaneously monitoring the air pressure in the hydrogen production machine so as to ensure the operation safety of the hydrogen production machine. The control system includes:
the power pump 2 is arranged between the raw material tank 1 and the hydrogen production tank 3, the spray head connected with the liquid outlet end of the power pump 2 is a porous spray head, and the porous spray head is started and stopped according to signals, controls the flow rate and sprays the raw material liquid.
And the flowmeter is arranged at the gas outlet 6 on the hydrogen storage tank 4. Still include a plurality of control valves 9, control valves 9 set up in the position of bin outlet 9, feed inlet 12, gas outlet 6, and control system controls opening of control valves 9 according to the safe condition control of each jar of body.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. The utility model provides an integral type sodium borohydride hydrogen manufacturing machine that hydrolysises which characterized in that: the hydrogen storage tank comprises a cylindrical tank body, wherein the interior of the tank body is divided into an upper layer and a lower layer, and comprises a reaction tank body unit positioned on the upper layer, a cleaning tank unit positioned on the lower layer and a hydrogen storage tank arranged on the upper layer of the tank body;
the reaction tank body unit comprises a hydrogen production tank and a raw material tank which are coaxially arranged; the washing tank unit comprises a waste tank, a plurality of washing tanks and an alkali removal tank, the washing tanks and the alkali removal tank are arranged around the waste tank, the washing tanks are sequentially communicated, and the alkali removal tank is sequentially communicated;
the feed liquid outlet end of head tank with the entrance point of system hydrogen jar communicates with each other, the exit end of system hydrogen jar with the canister communicates with each other, the canister includes gas outlet end and liquid outlet end, gas outlet end and first the washing jar links to each other, the last the washing jar with first it links to each other to remove the alkali jar, the last remove the alkali jar with the hydrogen storage tank links to each other.
2. The hydrogen production by hydrolysis of sodium borohydride in one piece as claimed in claim 1, wherein: still including setting up a plurality of lamella catalyst layers of system hydrogen jar, including two sets of settings in left and right both sides the lamella catalyst layer, with one side lamella catalyst layer parallel arrangement, the lamella catalyst layer sets up downwards to the central point of the jar body from the edge of the jar body to the slope, both sides the lamella catalyst layer is crisscross the setting in proper order from top to bottom, wherein one side the minimum of lamella catalyst layer is located adjacent two of opposite side the clearance position of lamella catalyst layer.
3. The hydrogen production by hydrolysis of sodium borohydride in one piece as claimed in claim 1, wherein: the diameter of the waste material tank is equal to the diameter of the raw material tank, the hydrogen production tank is embedded in the position of the central shaft of the raw material tank, and the waste material tank is located under the hydrogen production tank.
4. The hydrogen production by hydrolysis of sodium borohydride in one piece as claimed in claim 1 or 3, wherein: the hydrogen storage tank is positioned on the outer side of the raw material tank and is arranged on the same ring surface with the water washing tank or the alkali removing tank.
5. The hydrogen production by hydrolysis of sodium borohydride in one piece as claimed in claim 1, wherein: comprises at least 4 water washing tanks and two alkali removing tanks.
6. The hydrogen production by hydrolysis of sodium borohydride in one piece as claimed in claim 5, wherein: and the water washing tank introduces hydrogen into the bottom of the water washing tank through an air pipe and discharges the hydrogen.
7. The hydrogen production by hydrolysis of sodium borohydride in one piece as claimed in claim 5, wherein: and in the alkali removal tank, hydrogen is introduced from the top position of the alkali removal tank.
8. The hydrogen production by hydrolysis of sodium borohydride in one piece as claimed in claim 1, wherein: further comprising a control system comprising
A power pump disposed between the raw material tank and the hydrogen production tank,
a flow meter provided on the hydrogen storage tank,
and a plurality of control valves.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110600716.5A CN113460958A (en) | 2021-05-31 | 2021-05-31 | Integrated sodium borohydride hydrolysis hydrogen production machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110600716.5A CN113460958A (en) | 2021-05-31 | 2021-05-31 | Integrated sodium borohydride hydrolysis hydrogen production machine |
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| CN113460958A true CN113460958A (en) | 2021-10-01 |
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| CN202110600716.5A Pending CN113460958A (en) | 2021-05-31 | 2021-05-31 | Integrated sodium borohydride hydrolysis hydrogen production machine |
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Citations (7)
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| JP2004290805A (en) * | 2003-03-26 | 2004-10-21 | Kyocera Corp | Composite catalyst membrane, reformer, and fuel cell |
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| CN103253631A (en) * | 2013-05-28 | 2013-08-21 | 青岛科技大学 | Hydrogen production device based on hydrolysis of sodium borohydride |
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| CN108238585A (en) * | 2016-12-27 | 2018-07-03 | 天津维金斯环保科技有限公司 | A kind of hydrogen generator for sodium borohydride hydrogen manufacturing |
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2021
- 2021-05-31 CN CN202110600716.5A patent/CN113460958A/en active Pending
Patent Citations (7)
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| JP2004290805A (en) * | 2003-03-26 | 2004-10-21 | Kyocera Corp | Composite catalyst membrane, reformer, and fuel cell |
| JP2004319490A (en) * | 2003-04-10 | 2004-11-11 | Hewlett-Packard Development Co Lp | Regulating type hydrogen generation system |
| CN103987655A (en) * | 2011-06-28 | 2014-08-13 | 智能能源有限公司 | Hydrogen gas generator |
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| CN108238585A (en) * | 2016-12-27 | 2018-07-03 | 天津维金斯环保科技有限公司 | A kind of hydrogen generator for sodium borohydride hydrogen manufacturing |
| CN209451615U (en) * | 2018-12-29 | 2019-10-01 | 河南科技学院 | A kind of coal-fired flue gas desulfurization reactor tank based on sodalime double alkali method |
| CN212425434U (en) * | 2020-08-29 | 2021-01-29 | 江苏集萃分子工程研究院有限公司 | Integrated kilowatt-level fuel cell sodium borohydride hydrolysis hydrogen production device |
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| 付文英 等: ""硼氢化钠循环再生工艺的研究进展"", 《材料导报》, vol. 35, no. 15, pages 15017 - 15025 * |
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