CN104528642A - Synthesis gas preparation method for reforming marsh gas through plasma fluid-bed - Google Patents
Synthesis gas preparation method for reforming marsh gas through plasma fluid-bed Download PDFInfo
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- CN104528642A CN104528642A CN201410844201.XA CN201410844201A CN104528642A CN 104528642 A CN104528642 A CN 104528642A CN 201410844201 A CN201410844201 A CN 201410844201A CN 104528642 A CN104528642 A CN 104528642A
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Abstract
The invention relates to a synthesis gas preparation method for reforming marsh gas through a plasma fluid-bed. The synthesis gas preparation method comprises the steps that the marsh gas to be disposed is imported to a plasma device which comprises the plasma fluid-bed and a high-voltage power supply, and the high-voltage power supply is started up; disruptive discharge located between knife-shaped stainless steel electrodes is driven by the marsh gas to move downstream along the surfaces of the electrodes to form non-thermal arc plasma, and the marsh gas is transformed into active gas with a large number of active species such as charge particles, excited species, free radicals, electrons and photons; the fluidization of a nickel particle catalyst is driven by the active gas in stainless steel nets, and the plasma fluid-bed is formed; the catalyst is activated by the active gas through the functions of diffusion, adsorption, migration and bombardment, the chemical reaction of various kinds of plasma and catalytic coupling is rapidly produced through the catalytic action of the plasma and the catalyst, methane and carbon dioxide of the marsh gas are induced to be reformed to generate synthesis gas with rich hydrogen and carbon monoxide, and volatile organic gas in the marsh gas is removed.
Description
Technical field
The present invention relates to biogas utilization field, be specifically related to a kind of plasma body fluidisation bed reformation biogas preparing synthetic gas method.
Background technology
Biogas is a kind of gas mixture that organism produces through anaerobic digestion process, is a kind of biomass energy, inexhaustible, nexhaustible cheap fuel.Find that this biogas is in marsh land, is therefore called biogas traditionally the earliest.The comparison of ingredients of biogas is complicated, wherein topmost composition is methane and carbon dioxide, wherein methane 60% ~ 70%, carbonic acid gas 40% ~ 30%, in addition containing a small amount of carbon monoxide, hydrogen, hydrogen sulfide, oxygen, nitrogen, ammonia, phosphuret-(t)ed hydrogen and hydrocarbon polymer etc., total amount is no more than 5%.Biogas is used as in the Fuel Process of explosive motor, owing to containing hydrogen sulfide and carbonic acid gas in biogas, before biogas enters oil engine, first biogas to be purified, main removal hydrogen sulfide, simultaneously stability partial CO 2, to improve the content of methane in sewage gas, increases the facility investment of marsh gas power generation.
Summary of the invention
For solving the problem, the present invention proposes a kind of plasma body fluidisation bed reformation biogas preparing synthetic gas method.
The present invention, for reaching above object, is realized by following technical scheme:
There is provided a kind of plasma body fluidisation bed reformation biogas preparing synthetic gas method, 1) pending biogas is introduced in plasma device by inlet mouth, 2) high-voltage power supply connecting knife-edge stainless steel electrode is started, 3) knife-edge stainless steel electrode minimum distance formation disruptive discharge in-between the electrodes under the effect of high voltage electric, biogas drives disruptive discharge to vacillate along electrode surface fast downwards and moves formation Non-thermal arc plasma body, biogas is made to be transformed into containing a large amount of active specy (charged particles, excited state species, free radical, electronics and photon) reactive gas, reactive gas is through cone-shaped stainless steel net, drive the nickel beaded catalyst fluidisation in stainless (steel) wire, form plasma body fluidisation bed, reactive gas is by diffusion, absorption, move and bombard acting activating catalyzer, various plasma body and catalysis Coupled with Chemical Reaction is there is rapidly under the katalysis of plasma body and catalyzer, induction methane in sewage gas and CO 2 reformation generate the synthetic gas being rich in hydrogen and carbon monoxide, simultaneously by hydrogen sulfide in methane, ammonia, the obnoxious flavour degradeds such as phosphuret-(t)ed hydrogen are removed, the synthetic gas being rich in hydrogen and carbon monoxide is discharged from air outlet.
Described plasma device, comprises plasma body fluidisation bed and high-voltage power supply; Plasma body fluidisation bed is made up of inlet mouth, quartz container, tetrafluoroethylene base, knife-edge stainless steel electrode, cone-shaped stainless steel net, nickel beaded catalyst, quartz cover and venting port; Quartz container is connected with quartz cover and forms cavity, tetrafluoroethylene base is placed in the bottom of quartz container, at least 2 knife-edge stainless steel electrode symmetries are fixed on tetrafluoroethylene base, and are connected with high-voltage power supply by hi-line, and inlet mouth is placed in tetrafluoroethylene base center; Cone-shaped stainless steel net is placed in quartz container top central axis place, and is fixed on directly over electrode, and nickel beaded catalyst is placed in cone-shaped stainless steel net.
Biogas method of the present invention, integrate plasma body and catalysis, the obnoxious flavour such as hydrogen sulfide, ammonia, phosphuret-(t)ed hydrogen can effectively degraded in removal biogas, is converted into the synthetic gas being rich in hydrogen and carbon monoxide simultaneously, can be directly used in combustion power generation by methane in sewage gas and CO 2 reformation.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In Fig. 1: A front view, B sectional view, 1 plasma body fluidisation bed, 2 high-voltage power supplies, 3 inlet mouths, 4 quartz containers, 5 tetrafluoroethylene bases, 6 knife-edge stainless steel electrodes, 7 plasma bodys, 8 cone-shaped stainless steel nets, 9 nickel beaded catalysts, 10 quartz covers, 11 venting ports.
Embodiment
As shown in Figure 1, plasma device of the present invention, comprises plasma body fluidisation bed 1 and high-voltage power supply 2; Plasma body fluidisation bed 1 is made up of inlet mouth 3, quartz container 4, tetrafluoroethylene base 5, knife-edge stainless steel electrode 6, cone-shaped stainless steel net 8, nickel beaded catalyst 9, quartz cover 10 and venting port 11; Quartz container 4 is connected with quartz cover 10 and forms cavity, tetrafluoroethylene base 5 is placed in the bottom of quartz container 4, at least 2 knife-edge stainless steel electrode 6 symmetries are fixed on tetrafluoroethylene base 5, and are connected with high-voltage power supply 3 by hi-line, and inlet mouth 3 is placed in tetrafluoroethylene base 5 center; Cone-shaped stainless steel net 8 is placed in quartz container 4 top central axis place, and is fixed on directly over electrode 6, and nickel beaded catalyst 9 is placed in cone-shaped stainless steel net 8.
Select the gas mixture of methane and carbon dioxide as simulation biogas in the present embodiment, 1) by 1.2m
3/ h methane and carbon dioxide gas mixture is introduced in plasma device by inlet mouth, 2) start the high-voltage power supply connecting knife-edge stainless steel electrode (long 165mm, thick 3mm), regulation output voltage is to 10kV, 3) knife-edge stainless steel electrode minimum distance formation disruptive discharge in-between the electrodes under the effect of 10kV high voltage electric, gas mixture drives disruptive discharge to vacillate along electrode surface fast downwards and moves formation Non-thermal arc plasma body, gas mixture is made to be transformed into containing a large amount of active specy (charged particles, excited state species, free radical, electronics and photon) reactive gas, reactive gas is through cone-shaped stainless steel net, drive nickel beaded catalyst (φ 2mm) fluidisation in stainless (steel) wire, form plasma body fluidisation bed, reactive gas is by diffusion, absorption, move and bombard acting activating catalyzer, various plasma body and catalysis Coupled with Chemical Reaction is there is rapidly under the katalysis of plasma body and catalyzer, induction methane in sewage gas and CO 2 reformation generate synthetic gas, when methane: when carbonic acid gas is 1: 2, hydrogen/carbon monoxide is 0.43, when methane: carbonic acid gas=1: when 1, hydrogen/carbon monoxide is 0.81, when methane: carbonic acid gas=2: when 1, hydrogen/carbon monoxide is 1.7, and hydrogen/carbon monoxide has had remarkable rising.
Claims (2)
1. a plasma body fluidisation bed reformation biogas preparing synthetic gas method, is characterized in that the step of the method is as follows: introduce in plasma device by pending biogas by inlet mouth, start the high-voltage power supply connecting knife-edge stainless steel electrode, knife-edge stainless steel electrode is minimum distance formation disruptive discharge in-between the electrodes under the effect of high voltage electric, biogas drives disruptive discharge to vacillate along electrode surface fast downwards and moves formation Non-thermal arc plasma body, biogas is made to be transformed into containing a large amount of active specy (charged particles, excited state species, free radical, electronics and photon) reactive gas, reactive gas is through cone-shaped stainless steel net, drive the nickel beaded catalyst fluidisation in stainless (steel) wire, form plasma body fluidisation bed, reactive gas is by diffusion, absorption, move and bombard acting activating catalyzer, various plasma body and catalysis Coupled with Chemical Reaction is there is rapidly under the katalysis of plasma body and catalyzer, induction methane in sewage gas and CO 2 reformation generate the synthetic gas being rich in hydrogen and carbon monoxide, simultaneously by hydrogen sulfide in methane, ammonia, the degraded of phosphuret-(t)ed hydrogen obnoxious flavour is removed, the synthetic gas being rich in hydrogen and carbon monoxide is discharged from air outlet.
2. a kind of plasma body fluidisation bed reformation biogas preparing synthetic gas method according to claim 1, is characterized in that described plasma device, comprises plasma body fluidisation bed and high-voltage power supply; Plasma body fluidisation bed is made up of inlet mouth, quartz container, tetrafluoroethylene base, knife-edge stainless steel electrode, cone-shaped stainless steel net, nickel beaded catalyst, quartz cover and venting port; Quartz container is connected with quartz cover and forms cavity, tetrafluoroethylene base is placed in the bottom of quartz container, at least 2 knife-edge stainless steel electrode symmetries are fixed on tetrafluoroethylene base, and are connected with high-voltage power supply by hi-line, and inlet mouth is placed in tetrafluoroethylene base center; Cone-shaped stainless steel net is placed in quartz container top central axis place, and is fixed on directly over electrode, and nickel beaded catalyst is placed in cone-shaped stainless steel net.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107746039A (en) * | 2017-12-05 | 2018-03-02 | 聂国印 | A kind of method and apparatus of methane and carbon dioxide without catalytic reforming preparing synthetic gas |
| CN108097009A (en) * | 2018-01-02 | 2018-06-01 | 昆明理工大学 | It is a kind of to purify phosphine gas and the method for recycling phosphoric acid in uncontrollable discharge environment |
| CN108456548A (en) * | 2018-06-06 | 2018-08-28 | 石玉林 | A kind of modularization skid-mounted device of biogas liquefaction |
| CN110345499A (en) * | 2019-07-31 | 2019-10-18 | 中国科学院力学研究所 | Plasma fluidizes the self-holding catalysis burning converter emission coal gas method, apparatus of bed |
| CN110394127A (en) * | 2019-07-30 | 2019-11-01 | 徐州工程学院 | A kind of plasma couples the fluidized bed methane dry reforming reaction unit and method of ultraviolet light in situ |
| CN112087854A (en) * | 2019-06-12 | 2020-12-15 | 中国石油化工股份有限公司 | Dielectric barrier discharge plasma generating device |
| CN114350390A (en) * | 2021-12-07 | 2022-04-15 | 东南大学 | Method and device for preparing small-molecule non-condensable gas by biomass pyrolysis gasification coupled plasma concerted catalysis |
| CN114572935A (en) * | 2022-04-13 | 2022-06-03 | 聊城因特农业发展有限公司 | Method for producing hydrogen by using medium barrier discharge non-thermal equilibrium plasma methane |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107746039A (en) * | 2017-12-05 | 2018-03-02 | 聂国印 | A kind of method and apparatus of methane and carbon dioxide without catalytic reforming preparing synthetic gas |
| CN108097009A (en) * | 2018-01-02 | 2018-06-01 | 昆明理工大学 | It is a kind of to purify phosphine gas and the method for recycling phosphoric acid in uncontrollable discharge environment |
| CN108456548A (en) * | 2018-06-06 | 2018-08-28 | 石玉林 | A kind of modularization skid-mounted device of biogas liquefaction |
| CN112087854A (en) * | 2019-06-12 | 2020-12-15 | 中国石油化工股份有限公司 | Dielectric barrier discharge plasma generating device |
| CN112087854B (en) * | 2019-06-12 | 2024-01-23 | 中国石油化工股份有限公司 | Dielectric barrier discharge plasma generating device |
| CN110394127A (en) * | 2019-07-30 | 2019-11-01 | 徐州工程学院 | A kind of plasma couples the fluidized bed methane dry reforming reaction unit and method of ultraviolet light in situ |
| CN110394127B (en) * | 2019-07-30 | 2023-08-22 | 徐州工程学院 | Fluidized bed methane dry reforming reaction device and method with plasma in-situ coupled ultraviolet light |
| CN110345499A (en) * | 2019-07-31 | 2019-10-18 | 中国科学院力学研究所 | Plasma fluidizes the self-holding catalysis burning converter emission coal gas method, apparatus of bed |
| CN114350390A (en) * | 2021-12-07 | 2022-04-15 | 东南大学 | Method and device for preparing small-molecule non-condensable gas by biomass pyrolysis gasification coupled plasma concerted catalysis |
| CN114572935A (en) * | 2022-04-13 | 2022-06-03 | 聊城因特农业发展有限公司 | Method for producing hydrogen by using medium barrier discharge non-thermal equilibrium plasma methane |
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Application publication date: 20150422 |