CN208328127U - The system that ammonia electrolytic hydrogen production is used for coal liquefaction - Google Patents
The system that ammonia electrolytic hydrogen production is used for coal liquefaction Download PDFInfo
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- CN208328127U CN208328127U CN201820503425.8U CN201820503425U CN208328127U CN 208328127 U CN208328127 U CN 208328127U CN 201820503425 U CN201820503425 U CN 201820503425U CN 208328127 U CN208328127 U CN 208328127U
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- coal liquefaction
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Abstract
The utility model relates to the systems that a kind of ammonia electrolytic hydrogen production is used for coal liquefaction, including electrolyte supply system, electrolytic cell and coal liquefaction system, the electrolyte entrance of the outlet connection electrolytic cell of electrolyte supply system, the entrance of the cathode hydrogen outlet connection coal liquefaction system of electrolytic cell；It using conventional alkaline electrolysis pond, is electrolysed by ammonia and obtains high-purity hydrogen, and supply hydrogen to coal liquefaction system, hydrogenation liquefaction reaction occurs, promotes the clean utilization of coal resources；The utility model can reduce the energy consumption of electrolytic hydrogen production, reduce the cost of electrolytic hydrogen production, be conducive to the popularization of the harmless electrolytic hydrogen production mode of green；The ammonia in waste water can be also removed by electrolysis method, realizes the coupling of wastewater treatment and efficient electrolysis hydrogen manufacturing, and will be electrolysed hydrogen obtained and be used for coal liquefaction, and the clean and effective for promoting coal resources utilizes, environment protection significance with higher and comprehensive benefit.
Description
Technical field
The utility model relates to hydrogen manufacturing and environmental technology field, in particular to a kind of ammonia electrolytic hydrogen production is for coal liquefaction
System.
Background technique
In recent years, with the continuous reinforcement of people's environmental consciousness, the exploitation of new energy and the clean and effective benefit of fossil energy
With having obtained more and more attention.The energy resource structure in China is the few oily deficency of more coals, within the following considerable time, coal
It all will be the main energy sources in China.Coal liquefaction is a kind of important channel that Coal Clean efficiently utilizes, it is by coal in high temperature height
Under the conditions of pressure, by catalytic hydrogenation direct liquefaction synthesizing liquid HC fuel, and the atoms such as sulphur, nitrogen, oxygen are removed, to reduce ring
Border pollution, and improve utilization efficiency.
Hydrogen is the important source material of coal liquefaction.In various hydrogen production process, electrolytic hydrogen production wide, nothing with raw material sources
The advantages of pollution, clean and effective is the direction of the following hydrogen manufacturing development.However, since electrolysis method needs to consume electric energy, cost compared with
Height limits the popularization of electrolytic hydrogen production method.Current electrolysis hydrogen manufacturing production method only accounts for the 4% of whole hydrogen manufacturing modes.In order to push away
Wide green hydrogen manufacturing mode, needs to reduce the power consumption of electrolytic hydrogen production.
The power consumption of cell reaction is related with the standard electrode EMF of cathode and anode reaction, and electrolysis water is reacted:
Cathode:
2H2O+2e-→H2+2OH-E °=- 0.83V vs SHE
Anode:
2OH-→1/2O2+H2O+2e-E °=0.40V vs SHE
Overall reaction:
2H2O+ electric energy → 2H2+O2E=1.23V
I.e. the minimum theoretical voltage of water electrolysis hydrogen production is 1.23V.Reduce theoretical voltage, it is necessary to reduce anodic oxidation reactions
Standard electrode EMF, this just needs to find a kind of suitable anode reactant.
Summary of the invention
In order to overcome the defects of the prior art described above, the purpose of this utility model is to provide a kind of ammonia electrolytic hydrogen productions to be used for
The system of coal liquefaction, the technical problem to be solved is that: by being electrolysed ammonia hydrogen making, and hydrogen is supplied to coal liquefaction system
System realizes that the clean and effective of the supply of low energy consumption green hydrogen and coal utilizes.
In order to achieve the above object, the technical solution of the present invention is:
A kind of system that ammonia electrolytic hydrogen production is used for coal liquefaction, including electrolyte supply system 1, electrolytic cell 2 and coal liquefaction system
System 3；Wherein, the electrolyte entrance of the outlet connection electrolytic cell 2 of electrolyte supply system 1, the cathode hydrogen outlet of electrolytic cell 2 connect
Connect the entrance of coal liquefaction system 3.
The electrolyte supply system 1 includes stirred tank, ammonium hydroxide feeding device and KOH the charging dress being connected to stirred tank
It sets, is connected to the delivery pump and corresponding pipeline of stirred tank and ammonium hydroxide feeding device and KOH feeding device.
The electrolytic cell 2 is conventional alkaline electrolytic cell, and cathode and anode catalyst material are Pt, Ru, Rh, Ir, Ni, Co,
One of Fe, Zn, Ti and Ta metal or a variety of alloys.
The coal liquefaction system 3 includes catalyst reaction device and oil product collection device.
The system carries out the method that ammonia electrolytic hydrogen production is used for coal liquefaction, includes the following steps:
Step 1: the mixed electrolytic solution of ammonia and KOH is prepared in electrolyte supply system 1；
Step 2: mixed electrolytic solution is passed through in electrolytic cell 2, is powered in electrolytic cell 2 and the following reaction of electrolysis occurs:
Cathode:
2H2O+2e-→H2+2OH-E °=- 0.83V vs SHE
Anode:
2OH-→1/2O2+H2O+2e-E °=0.40V vs SHE
Overall reaction:
2H2O+ electric energy → 2H2+O2E=1.23V
Hydrogen is generated in the cathode of electrolytic cell 2, generates the water of nitrogen and deamination in anode；
Step 3: carrying out hydrogenation liquefaction with coal slurry using the hydrogen in step 2 and react, generate naphtha, aviation fuel and diesel oil.
In the step 1, ammonia derives from industrial and agricultural wastewater, and system plays the work of waste water ammonia-removal while producing hydrogen at this time
With.
In the step 2, mixed electrolytic solution is alkaline electrolyte, KOH and 0.01-2mol/L comprising 0.2-2mol/L
Ammonia；Cell reaction carries out at normal temperature.
In the step 2, the power supply of electrolytic cell 2 is wind-powered electricity generation, photovoltaic class renewable energy power generation；
In the step 2, in the hydrogen purity that the cathode of electrolytic cell 2 obtains 99.9% or more；In the anode of electrolytic cell
Nitrogen is obtained, is sold after collecting；Anode obtains the water of low ammonia content, as industrial reuse water.
In the step 3, including coal slurry preparation, hydrogenation liquefaction reaction, stabilized hydrogenation reaction and modification reaction.
Compared to the prior art compared with, the utility model has the following characteristics:
(1) the utility model utilizes ammonia Electrowinning hydrogen, and theoretical voltage is far below conventional water electrolysis hydrogen production, greatly
Ground reduces energy consumption；Ammonia is a kind of common industrial products, cheap, in addition also has a large amount of ammonia to deposit in industrial and agricultural wastewater
Cheap raw material can be provided for electrolytic hydrogen production.Therefore, electrolysis ammonia hydrogen manufacturing be reduce electrolytic hydrogen production energy consumption, reduce integral into
This good selection；
(2) ammonia electrolytic hydrogen production can be generated electricity using clean energy resourcies such as water power, photovoltaic, wind-powered electricity generations and be carried out, and electrolysate only has hydrogen
And nitrogen, it cleans, is pollution-free；
(3) ammonia in electrolytic hydrogen production can further decrease system cost using the ammonia nitrogen in industrial and agricultural wastewater as source, and
Ammonia is become into nitrogen discharge by electrolysis, achievees the effect that wastewater treatment while producing hydrogen；
(4) hydrogen obtained will be electrolysed and is used for coal liquefaction, the clean and effective for promoting coal resources utilizes.
Detailed description of the invention
Fig. 1 is the schematic illustration in alkaline electrolysis pond.
Fig. 2 is the system schematic that ammonia electrolytic hydrogen production is used for coal liquefaction.
Specific embodiment
The utility model is described in detail with reference to the accompanying drawing.
Example 1:
As shown in Figure 1, the cathode of electrolytic cell 2 is Ni-Co-Fe alloy electrode, anode is Ni-Rh alloy electrode, alkaline electro
Solve the ingredient of liquid are as follows: 1mol/L KOH, 1mol/L NH3.Ammonia in alkaline electrolyte is supplemented by industrial ammonia.Such as Fig. 2 institute
Show, the alkaline electrolyte being made into electrolyte supply system 1 is squeezed into electrolytic cell 2, occurs under the applied voltage of 0.8V
Cell reaction, generates the high-purity hydrogen that purity reaches 99.9% in the cathode of electrolytic cell 2, generates nitrogen in the anode of electrolytic cell 2
With the water of low ammonia content.Enter coal liquefaction system 3 in the high-purity hydrogen that the cathode of electrolytic cell 2 generates, with coal slurry in high temperature and pressure
Lower generation hydrogenation catalyst reaction, generates naphtha and diesel oil, collects respectively through product separation and collection device.
Claims (5)
1. the system that a kind of ammonia electrolytic hydrogen production is used for coal liquefaction, it is characterised in that: including electrolyte supply system (1), electrolytic cell
(2) and coal liquefaction system (3)；Wherein, the electrolyte entrance of outlet connection electrolytic cell (2) of electrolyte supply system (1), electrolysis
The entrance of cathode hydrogen outlet connection coal liquefaction system (3) in pond (2).
2. the system that a kind of ammonia electrolytic hydrogen production according to claim 1 is used for coal liquefaction, it is characterised in that: the electrolyte
Supply system (1) includes stirred tank, the ammonium hydroxide feeding device and KOH feeding device being connected to stirred tank, is connected to stirred tank and ammonia
The delivery pump and corresponding pipeline of water feeding device and KOH feeding device.
3. the system that a kind of ammonia electrolytic hydrogen production according to claim 1 is used for coal liquefaction, it is characterised in that: the electrolytic cell
It (2) is alkaline electrolysis pond, cathode and anode catalyst material are Pt, Ru, Rh, Ir, Ni, in Co, Fe, Zn, Ti and Ta metal
One or more alloys.
4. the system that a kind of ammonia electrolytic hydrogen production according to claim 1 is used for coal liquefaction, it is characterised in that: the coal liquefaction
System (3) includes catalyst reaction device and oil product collection device.
5. the system that a kind of ammonia electrolytic hydrogen production according to claim 1 is used for coal liquefaction, it is characterised in that: the electrolyte
The electrolyte of supply system (1) supply is alkaline electrolyte, the ammonia of KOH and 0.01-2mol/L comprising 0.2-2mol/L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201820503425.8U CN208328127U (en) | 2018-04-10 | 2018-04-10 | The system that ammonia electrolytic hydrogen production is used for coal liquefaction |
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| CN201820503425.8U CN208328127U (en) | 2018-04-10 | 2018-04-10 | The system that ammonia electrolytic hydrogen production is used for coal liquefaction |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114134511A (en) * | 2022-01-04 | 2022-03-04 | 哈尔滨工业大学 | Method for producing hydrogen by electrolyzing coal water slurry through two-step method |
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2018
- 2018-04-10 CN CN201820503425.8U patent/CN208328127U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114134511A (en) * | 2022-01-04 | 2022-03-04 | 哈尔滨工业大学 | Method for producing hydrogen by electrolyzing coal water slurry through two-step method |
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