CN105056858A - Reactor and method for preparing synthesis gases through reforming greenhouse gases - Google Patents

Reactor and method for preparing synthesis gases through reforming greenhouse gases Download PDF

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CN105056858A
CN105056858A CN201510428436.5A CN201510428436A CN105056858A CN 105056858 A CN105056858 A CN 105056858A CN 201510428436 A CN201510428436 A CN 201510428436A CN 105056858 A CN105056858 A CN 105056858A
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air inlet
reactor
expanded metal
anger
hollow
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CN105056858B (en
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吴祖良
王家兴
郭海慧
姚水良
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Zhejiang Gongshang University
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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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
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Abstract

The invention discloses a reactor and method for preparing synthesis gases through greenhouse gases. The reactor comprises a casing, a plurality of hollow gas inlet metal tubes, a hollow gas outlet metal tube, a gas inlet porous metal plate, a gas outlet porous metal plate and stuffing mediums, wherein one end of the casing is a gas inlet end, the other end of the casing is a gas outlet end,and the gas inlet end and the gas outlet end are respectively sealed by seal covers; the hollow gas inlet metal tubes penetrate through the seal cover of the gas inlet end and are all grounded, and a hollow cavity is a gas inlet passage; the hollow gas outlet metal tube penetrates the seal cover of the gas outlet end, and a hollow cavity is a gas outlet passage; the gas inlet porous metal plate and the gas outlet porous metal plate are located in the casing in the direction from the gas inlet end to the gas outlet end, the gas inlet porous metal plate is connected with a high-voltage power supply, and the gas outlet porous metal plate is grounded; the stuffing mediums are stuffed between the gas inlet porous metal plate and the gas outlet porous metal plate. The device disclosed by the invention effectively combines a multitube plasma torch with stuffing surface discharge, integrates plasma oxidation, filtration and chemical catalysis, makes full use of the advantage and the synergistic effect of each technique, and effectively solves the problems that the transformation efficiency and the energy utilization ratio are low and a catalyst is blocked.

Description

A kind of greenhouse gases are reformed and are prepared reactor and the method for synthesis gas
Technical field
The present invention relates to a kind of greenhouse gases Treatment process field, be specifically related to reactor and method that synthesis gas is prepared in the reformation of a kind of greenhouse gases.
Background technology
Greenhouse gases (GrennhouseGas, be called for short GHG) be the gas of the effect with similar greenhouse, comprise vapor in the atmosphere, carbon dioxide, nitrous oxide and methane etc., it can allow, and the shortwave radiation of the sun is intimate to be had no to pass through damply, but can absorb earth long-wave radiation.Greenhouse gases source natural source and artificial source, the greenhouse gas concentration increase in air mainly comes from artificial source.Greenhouse gases cause greenhouse effects that terrestrial climate is changed, and cause Melting Glaciers:, sea level rise, occur extreme weather, and biological existence and diversity are on the hazard.From 1880 to 2012, global seismic mean temperature approximately increases 0.85 DEG C, 1983-2012 is 30 years the hottest over 1400 in the past, Chinese characters over 1913 earth's surface mean temperature rise 0.91 DEG C, nearest 60 years, raising about 0.23 DEG C every year on average, is almost the twice (IPCC.ClimateChange.Synthesisreport2014 [online] Availableat<http: //www.ipcc.ch/index.htm>) in the whole world.
CO 2and CH 4be the of paramount importance two kinds of greenhouse gases found so far, although they are greenhouse gases, also can be used as the carbon source of reforming and preparing in synthesis gas process simultaneously.Recent domestic is for CO 2/ CH 4reformation synthesis ratio more popular.NazimMuradov and FranklynSmith (Energy & Fuels, 2008,22:2053 – 2060) simulates rubbish landfill gas, finds CH 4with CO 2mol ratio be decided to be 1.3, at an atmospheric pressure, under 850 DEG C of conditions, ruthenium, iridium, platinum, the noble metal catalysts such as rhodium are to CH 4/ CO 2dry weight turn over turns to synthesis gas facilitation, H 2with the generation ratio of CO close to wait mole, and only remain a small amount of CO after transforming 2.Whole system reaches stable state within 1h, and within the 5h that reaction is initial, catalyst has obvious inactivation, and the carbon distribution of catalyst surface also can't detect.
The people such as Effendi (A.Effendi, K.Hellgardt, Z.G.Zhang, T.Yoshida.Fuel, 2005,84:869 – 874) have studied in fluidized-bed reactor and simulate the reaction of marsh gas water steam reforming coupling two benches CO transformation and hydrogen production.By CH 4with CO 2simulation biogas, both mol ratios are 1.5, use the Ni/A1 of 11.5% 2o 3catalyst, passes into excessive steam to suppress formation carbon distribution, CH in reaction 4conversion ratio reach more than 98%.Use at high temperature (523 ~ 723K) and low-temperature zone (423 ~ 523K) and carry out CO transformationreation based on Cu/Fe/Cr and Cu/Zn commercial catalysts, CO concentration reduces, and optimizes H 2output, concentration and productive rate, final products H 2volume ratio accounts for 68% and CO only accounts for 0.2%.
The people such as PhilipG.Rutberg (PhilipG.Rutberg, VadimA.Kuznetsov, VictorE.Popov, etal.AppliedEnergy.2015,148:159-168) pass through CO 2+ H 2o+CH 4gaseous mixture obtains H after utilizing plasma method 2with CO total content close to 95%, H 2with the ratio of CO close to 2.1.
Plasma method process greenhouse gases prepare synthesis gas (CO and H 2) be new method very popular at energy field in recent years, plasma method can dissociation CO at normal temperatures and pressures 2and CH 4, and the productive rate of synthesis gas improves greatly, which solves the low-yield efficiency of traditional thermocatalytic technology, prepares synthesis gas provide new approaches and methods for greenhouse gases.But the problems such as synthesis gas productive rate is not high, energy consumption efficiency is lower, carbon distribution generation that current plasma greenhouse gases treating apparatus still exists.
Summary of the invention
The present invention is directed to two kinds of greenhouse gases CH in air 4and CO 2, provide a kind of greenhouse gases to reform and prepare reactor and the method for synthesis gas, efficiently solve transformation efficiency and the problem such as capacity usage ratio is low, catalyst blockage.
Greenhouse gases are reformed and are prepared a reactor for synthesis gas, comprising:
Housing, one end of this housing is inlet end, and the other end is outlet side, and lidstock is all used in inlet end and outlet side;
Some air inlet hollow metal pipes, run through the capping of inlet end and equal ground connection, hollow cavity is inlet channel;
Give vent to anger hollow metal pipe, run through the capping of outlet side, hollow cavity is outlet passageway;
Air inlet expanded metal and expanded metal of giving vent to anger, be located at successively in housing to direction, outlet side by inlet end, air inlet expanded metal connects high voltage source, porous metals plate earthing of giving vent to anger;
Filled media, is filled in air inlet expanded metal and gives vent to anger between expanded metal.
Corona discharge plasma square is formed between air inlet hollow metal pipe and air inlet expanded metal; At air inlet expanded metal with give vent to anger between expanded metal and form filled type surface plasma discharge, potent electric discharge in plasma torch, from the CO of air inlet hollow metal pipe ejection 2and CH 4under the collision of high energy electron, be broken down into CO and H 2, due to CO 2and CH 4inlet zone and region of discharge overlapping, most of high energy electron only participates in CO 2and CH 4collisional dissociation, greatly reduce the waste of energy, energy efficiency significantly improves; Then the surface-discharge stage entering filled type is continued, under catalytic action, the unreacted CO of leading portion 2and CH 4decomposed further, surface-discharge is even, covers whole electric discharge hole, and under the synergy of plasma-catalytic, nearly all CO 2and CH 4effective dissociation can be obtained.The present invention, through two sections of efficient plasma treatment, solves the problem that Conventional plasma reactor according conversion ratio is not high, and other accessory substance also almost transforms completely simultaneously, and Carbon balance rate is high.
Preferably, described air inlet expanded metal and expanded metal of giving vent to anger all are made of porous materials, described porous material be by spherical or erose powder of stainless steel by compressing and high temperature sintering the obtained porous material with rigid structure.This structure can not only allow gas pass through smoothly, and the soot particles produced in energy effectively catching plasma torch discharge process, and the catalyst of the follow-up filling of available protecting is not blocked and chemical passivation.After operation after a while, need clean the expanded metal of inlet end.In order to ensure that gas can pass through smoothly, and the organic granule produced in energy effectively catching course of reaction, the aperture of expanded metal is generally preferably 5 ~ 10um.
Preferably, described air inlet hollow metal pipe is uniformly distributed in the capping of inlet end, and the spacing between adjacent two air inlet hollow metal pipes is 5 ~ 10mm.The material of capping is polytetrafluoroethylene (PTFE).
Preferably, the caliber D1 of described air inlet hollow metal pipe is 2 ~ 3mm.
Described air inlet hollow metal pipe and hollow metal pipe of giving vent to anger are stainless steel tube.
Air inlet arranges plasma torch, plasma torch is made up of the hollow metal pipe that n root is isometric, its material is stainless steel, and diameter D1 is 2-3mm, after inserting the capping of inlet end, be evenly distributed state, its hollow cavity is inlet channel, and the spacing of hollow metal pipe is 5-10mm, is formed be similar to needle plate type corona discharge with the metallic porous sheet of inlet end, after connection high voltage source, produce plasma discharge, excite CO 2and CH 4gas, makes CO 2with CH 4obtain first step dissociation.
Gas outlet arranges single hollow metal pipe, and after inserting the capping of outlet side, form outlet passageway, its diameter, according to gas flow designing and calculating, guarantees that the pressure of reactor monolith is less than 200Pa.
As preferably, all air inlet hollow metal length of tube are identical.And the length of air inlet hollow tube equals the spacing L1 of inlet end capping and air inlet expanded metal.In the reactor running of reality, according to the situation of filled section electric discharge, air inlet hollow metal pipe is regulated to stretch into the degree of depth of capping, until produce the pulse of obvious streamer corona current between air inlet hollow metal pipe and air inlet expanded metal and between two blocks of expanded metals, current impulse available current meter and oscillograph are measured.
Further preferably, the identical and adjustable length inserted in housing of all air inlet hollow metal length of tube.Namely all air inlet hollow metal pipes adopt with the capping junction of inlet end and are flexibly connected, and junction sealing.Air inlet hollow metal pipe inserts the adjustable length in housing, the adjustable in length air inlet hollow metal pipe in adjustment air inlet hollow metal pipe insertion housing and the discharging gap between air inlet expanded metal.
Still more preferably, movable connection method herein, for removably connecting, is convenient to the maintenance to air inlet hollow metal pipe and replacing.Hollow metal pipe of giving vent to anger also can adopt detachable connection in the capping of outlet side, is convenient to safeguard and change.
As preferably, the capping of inlet end and the spacing between air inlet expanded metal, air inlet expanded metal and the spacing of giving vent to anger between expanded metal and the spacing of giving vent to anger between expanded metal and the capping of outlet side equal.Further preferably, spacing is 100 ~ 400mm.
Inlet end capping and air inlet porous metals distance between plates L1, the spacing L2 of two blocks of expanded metals, outlet side capping and give vent to anger porous metals distance between plates L3, L1=L2=L3=100 ~ 400mm.Two pieces of metallic porous sheets and capping are all fixed installations, and its spacing L2 and L3 is constant, and the hollow metal pipe of inlet end is moveable, can control discharging gap, thus makes two sections, front and back high pressure use same high voltage source.
As preferably, described filled media is with SiO 2be VIII main B race composite metal oxide as catalyst carrier, Fe, Co, Ni be the supported catalyst of active component.In order to subtract the resistance of less granular filled section, the particle diameter of filled media particle is generally at 2 ~ 3mm.
Air inlet expanded metal and give vent to anger expanded metal discharge-gap-filling dielectric material and reproducibility catalyst, filling the medium used is with SiO 2as catalyst carrier, Fe, Co, Ni are VIII main B race composite metal oxide or supported catalyst.After opening high voltage source, in discharging gap, forming surface-discharge, under the effect producing plasma and catalyst by discharging between inlet end and outlet side metallic porous sheet, making CH 4and CO 2further decomposition, enhances CO and H 2generation.And when being used for VOCs catalytic oxidation, VOCs is effectively degraded under plasma and catalytic action.
As preferably, described housing is cross section is barrel-type casing that is circular or regular polygon, and the material of housing is quartz glass, pottery or lucite.
Multitube plasma torch and filled type surface-discharge effectively combine by apparatus of the present invention, integrate plasma oxidation, filtration and chemical catalysis, give full play to advantage and the synergy of each technology, substantially increase transformation efficiency energy capacity usage ratio, and effectively can solve the problem of clogged with soot catalyst.The present invention can not only be used for the conversion of greenhouse gases, also can be used for the catalytic oxidation of VOCs.
The invention provides the method that synthesis gas is prepared in the reformation of a kind of greenhouse gases, CH 4/ CO 2mist first carries out plasma exciatiaon decomposition through plasma square, then is obtained by reacting synthesis gas through plasma-catalytic.Preferred employing reactor of the present invention carries out, and concrete comprises the steps:
(1) high voltage source is opened, according to discharging gap regulation voltage at 20 ~ 50kV, CH 4/ CO 2mist is sprayed into by air inlet hollow metal pipe, and the gas flow rate controlled in air inlet hollow metal pipe is 5 ~ 10m/s.Enter in the space between inlet end capping and air inlet expanded metal subsequently, in this space, the flow velocity of gas is approximately 0.2 ~ 0.5m/s, and plasma torch corona discharge excites mist to be decomposed into CO and H 2;
(2) mist after step (1) is once decomposed enters in filled media through air inlet expanded metal, and air speed general control is at 30000 ~ 50000ml.g -1.h -1, in this region, carry out filled type surface plasma discharge, the CH will remained in mist further 4/ CO 2be decomposed into CO and H 2;
(3) forming gas obtained after step (2) twice decomposition is entered in the space of giving vent to anger between expanded metal and outlet side capping by expanded metal of giving vent to anger, finally discharged by hollow metal pipe of giving vent to anger;
(4) reactor is after the operation of 1 ~ 2 week, reactor can be carried out plasma discharge by air or oxygen, and organic granular residual on expanded metal and catalyst can be oxidized to CO by discharge process 2and H 2o, realizes effective metal plate and cleans the regeneration with catalyst.
Compared with prior art, the present invention has following beneficial effect:
1, compared to high temperature, the high-pressure catalytic CH of routine 4/ CO 2synthesis gas is prepared in reformation, plasma-catalytic CH 4/ CO 2reformation is prepared synthesis gas and is only needed can realize under low temperature or non high temperature, atmospheric pressure, and high-temperature catalytic needs lot of energy, and plasma energy consumption is little, and operating condition is flexible.
2, multitube plasma torch and filled type surface-discharge are effectively combined, between the function of the two, collaborative promotion mutually, improves reformation synthetic effect.
3, CH 4/ CO 2enter after this enters reactor in region I, first obtain plasma exciatiaon decomposition, then enter into region II by inlet end metallic porous sheet, make CH by plasma-catalytic acting in conjunction 4/ CO 2reformation is prepared synthesis gas effect and is obtained larger lifting, and energy efficiency significantly improves.
4, the design of inlet end metallic porous sheet, can not only allow gas pass through smoothly, and the soot particles produced in energy effectively catching plasma torch discharge process, and the catalyst of the follow-up filling of available protecting is not blocked and chemical passivation.
Accompanying drawing explanation
Fig. 1 is the structural representation of reactor of the present invention.
Fig. 2 is the air inlet of reactor shown in Fig. 1 hollow metal pipe and the schematic diagram between corresponding capping.
Shown in figure, Reference numeral is as follows:
1-air inlet hollow metal pipe 2-gives vent to anger hollow metal pipe 3-housing
4-air inlet expanded metal 5-gives vent to anger how empty metallic plate 6-filled media
7-capping.
Detailed description of the invention
As depicted in figs. 1 and 2, a kind of greenhouse gases are reformed and are prepared the reactor of synthesis gas, comprise housing 3, capping 7, air inlet hollow metal pipe 1, hollow metal pipe 2 of giving vent to anger, air inlet expanded metal 4, give vent to anger hollow metal plate 5 and filled media 6.
Housing 3 for cross section be circular or the barrel-type casing of regular polygon, it is barrel-type casing that cross section is circular in present embodiment, material is quartz glass or ceramic or lucite, one end, two ends of barrel-type casing is inlet end, the other end is outlet side, and inlet end and outlet side all seal with the capping 7 that polytetrafluoroethylene (PTFE) is made.
The capping of inlet end arranges some air inlet hollow metal pipes 1, air inlet hollow metal pipe stretches in housing 3 through corresponding capping, its hollow cavity forms inlet channel, air inlet hollow metal pipe and corresponding capping junction adopt and to be flexibly connected and junction seals, make the adjustable length in all air inlet hollow metal pipes insertion housing, the equal ground connection of all air inlet hollow metal pipes.
All air inlet hollow metal pipes are isometric and be uniformly distributed in corresponding capping, and the caliber D1 of every root air inlet hollow tube is 2 ~ 3mm, and the spacing between arbitrary adjacent two air inlet hollow metal pipes is 5 ~ 10mm, and magnitude setting adjusts according to the internal diameter of barrel-type casing.In present embodiment, said caliber all refers to the internal diameter to hollow tube.
The capping of outlet side is arranged a hollow metal pipe 2 of giving vent to anger, the junction of this hollow metal pipe and corresponding capping is for being tightly connected, and its hollow cavity is outlet passageway.
In barrel-type casing, set gradually air inlet expanded metal 4 and expanded metal 5 of giving vent to anger by inlet end to direction, outlet side, air inlet expanded metal 4 connects high voltage source, expanded metal 5 ground connection of giving vent to anger.Filled media 6 is filled between two expanded metals, and filled media is with SiO 2be VIII main B race composite metal oxide as catalyst carrier, Fe, Co, Ni be the supported catalyst of active component.Spacing between the capping of inlet end and air inlet expanded metal 4 is L1, air inlet expanded metal 4 and the spacing of giving vent to anger between expanded metal 5 are L2, the spacing of giving vent to anger between expanded metal 5 and the capping of outlet side is L3, L1=L2=L3=100 ~ 400mm in present embodiment.
Space between the capping of inlet end and air inlet expanded metal 4 is region I, and air inlet expanded metal 4 and the space of giving vent to anger between expanded metal 5 are region II, and the space of giving vent to anger between expanded metal 5 and the capping of outlet side is region III.
The process being prepared synthesis gas by this reactor reformation greenhouse gases is as follows:
(1) high voltage source is opened, according to discharging gap regulation voltage at 20 ~ 50kV, CH 4/ CO 2mist is sprayed into by air inlet hollow metal pipe, the gas flow rate controlled in air inlet hollow metal pipe is 5 ~ 10m/s, enter in the space (region I) between inlet end capping and air inlet expanded metal subsequently, in this space, the flow velocity of gas is approximately 0.2 ~ 0.5m/s, and plasma torch corona discharge excites mist to be decomposed into CO and H 2;
(2) mist after step (1) is once decomposed enters in filled media (region II) through air inlet expanded metal, and air speed general control is at 30000 ~ 50000ml.g -1.h -1filled type surface plasma discharge is carried out, the CH will remained in mist further in this region 4/ CO 2be decomposed into CO and H 2;
(3) forming gas obtained after step (2) twice decomposition is entered in the space (region III) of giving vent to anger between expanded metal and outlet side capping by expanded metal of giving vent to anger, finally discharged by hollow metal pipe of giving vent to anger;
(4) reactor is after the operation of 1 ~ 2 week, reactor can be carried out plasma discharge by air or oxygen, and organic granular residual on expanded metal and catalyst can be oxidized to CO by discharge process 2and H 2o, realizes effective metal plate and cleans the regeneration with catalyst.
Application example 1
Independent plasma torch electric discharge, CH 4and CO 2flow be 1L/min, CH 4: CO 2=1:1; Air inlet hollow tube diameter 1mm, arranges 4 air inlet hollow tubes, housing inner diameter 10mm, escape pipe diameter 3mm; L1=100mm; Adopt AC power, reach 15kJ/L at energy injection, CO 2conversion ratio reach 12 ~ 15%, and CH 4conversion ratio also reach 10 ~ 15%.
Application example 2:
Independent filled type surface-discharge, CH 4and CO 2flow be 1L/min, CH 4: CO 2=1:1; L2=100mm; Housing inner diameter 10mm, air inlet pipe 1 and escape pipe 1, diameter is all 3mm; Adopt AC power, reach 15kJ/L at energy injection, CO 2conversion ratio reach 14 ~ 18%, and CH 4conversion ratio also reach 16 ~ 20%.
Application example 3:
The present invention is by plasma torch and filled type surface-discharge compound.CH 4and CO 2flow be 1L/min, CH 4: CO 2=1:1; Air inlet hollow tube diameter 1mm, arranges 4 air inlet hollow tubes, housing inner diameter 10mm, escape pipe diameter 10mm; L1=L2=L3=100mm; Catalyst filling Ni-Cu-SiO 2catalyst 2g; Adopting AC power, is 25kV at discharge voltage, energy injection 15kJ/L, CO 2conversion ratio reach 43 ~ 45%, and CH 4conversion ratio also reach 52 ~ 56%.No matter be CO 2or CH 4conversion ratio had obvious lifting.

Claims (9)

1. greenhouse gases are reformed and are prepared a reactor for synthesis gas, it is characterized in that, comprising:
Housing, one end of this housing is inlet end, and the other end is outlet side, and lidstock is all used in inlet end and outlet side;
Some air inlet hollow metal pipes, run through the capping of inlet end and equal ground connection, hollow cavity is inlet channel;
Give vent to anger hollow metal pipe, run through the capping of outlet side, hollow cavity is outlet passageway;
Air inlet expanded metal and expanded metal of giving vent to anger, be located at successively in housing to direction, outlet side by inlet end, air inlet expanded metal connects high voltage source, porous metals plate earthing of giving vent to anger;
Filled media, is filled in air inlet expanded metal and gives vent to anger between expanded metal.
2. the reactor of synthesis gas is prepared in greenhouse gases reformation according to claim 1, and it is characterized in that, described air inlet hollow metal pipe is uniformly distributed in the capping of inlet end, and the spacing between adjacent two air inlet hollow metal pipes is 5 ~ 10mm.
3. the reactor of synthesis gas is prepared in greenhouse gases reformation according to claim 1, and it is characterized in that, the caliber of described air inlet hollow metal pipe is 2 ~ 3mm.
4. greenhouse gases are reformed and are prepared the reactor of synthesis gas according to claim 1, it is characterized in that, the identical and adjustable length inserted in housing of all air inlet hollow metal length of tube.
5. the reactor of synthesis gas is prepared in greenhouse gases reformation according to claim 1, it is characterized in that, the capping of inlet end and the spacing between air inlet expanded metal, air inlet expanded metal and the spacing of giving vent to anger between expanded metal and the spacing of giving vent to anger between expanded metal and the capping of outlet side equal.
6. the reactor of synthesis gas is prepared in greenhouse gases reformation according to claim 5, and it is characterized in that, described spacing is 100 ~ 400mm.
7. the reactor of synthesis gas is prepared in greenhouse gases reformation according to claim 1, and it is characterized in that, described filled media is with SiO 2be VIII main B race composite metal oxide as catalyst carrier, Fe, Co, Ni be the supported catalyst of active component.
8. the reactor of synthesis gas is prepared in greenhouse gases reformation according to claim 1, it is characterized in that, described housing is cross section is barrel-type casing that is circular or regular polygon, and the material of housing is quartz glass, pottery or lucite.
9. greenhouse gases are reformed and are prepared a method for synthesis gas, it is characterized in that, comprise the steps:
(1) high voltage source is opened, according to discharging distance regulation voltage at 20 ~ 50kV, CH 4/ CO 2mist is sprayed into by air inlet hollow metal pipe, the gas flow rate controlled in air inlet hollow metal pipe is 5 ~ 10m/s, enter in the space between inlet end capping and air inlet expanded metal subsequently, in this space, the flow velocity of gas is 0.2 ~ 0.5m/s, and plasma torch corona discharge excites mist to be decomposed into CO and H 2;
(2) mist after step (1) is once decomposed enters in filled media through air inlet expanded metal, and air speed controls at 30000 ~ 50000ml.g -1.h -1, in this region, carry out filled type surface plasma discharge, the CH will remained in mist further 4/ CO 2be decomposed into CO and H 2;
(3) forming gas obtained after step (2) twice decomposition is entered in the space of giving vent to anger between expanded metal and outlet side capping by expanded metal of giving vent to anger, finally discharged by hollow metal pipe of giving vent to anger;
(4) reactor is after the operation of 1 ~ 2 week, and reactor is carried out plasma discharge by air or oxygen, and organic granular residual on expanded metal and catalyst is oxidized to CO by discharge process 2and H 2o, realizes effective metal plate and cleans the regeneration with catalyst.
CN201510428436.5A 2015-07-20 2015-07-20 Reactor and the method for synthesis gas is prepared in a kind of greenhouse gases reformation Expired - Fee Related CN105056858B (en)

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CN108408690B (en) * 2018-03-14 2021-07-16 大连理工大学 Process for producing high quality synthesis gas from methane, carbon dioxide and water
CN111617714A (en) * 2020-05-27 2020-09-04 常州大学 Catalytic reaction device, instrument for catalyst electrification research and using method

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