CN104826635A - Water steam cracking catalyst and preparation method thereof as well as water steam cracked hydrogen combustion method - Google Patents
Water steam cracking catalyst and preparation method thereof as well as water steam cracked hydrogen combustion method Download PDFInfo
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Abstract
The invention discloses a water steam cracking catalyst and a preparation method thereof as well as a water steam cracked hydrogen combustion method. The catalyst comprises the following elements: iron, aluminum, molybdenum, platinum, manganese and alkali metal, wherein the iron and the aluminum are elemental substances, the molybdenum, platinum, manganese and alkali metal are elemental substances or compounds. The catalyst is prepared from a large amount of cheap raw materials, so the cost is low; besides, through the catalyst, the water steam cracking speed can be stably controlled, the hydrogen can be stably produced and the explosion accident can be effectively prevented; and according to the water steam cracked hydrogen combustion method, the assumption of asking water for hydrogen energy is truly realized for the first time.
Description
Technical field
The present invention relates to a kind of steam pyrolysis Catalysts and its preparation method and steam pyrolysis hydrogen burning method.
Background technology
The energy is most important key element in economical activities of mankind.The energy is natural resource, and it comes from the radiation of the sun.Coal, oil, natural gas are the solar energy be stored in the ancient times in biology, and they are hydrocarbon mainly.Water and air can produce huge potential energy and kinetic energy under the effect of solar energy, and this potential energy and kinetic energy are become the power that electric power just can become all machines.Waterpower and wind-force can be converted into electric power, and this conversion can not produce environmental contaminants.Coal combustion, oil, natural gas release huge heat, thus produce power; But combustion process but produces a large amount of environmental contaminants: carbon monoxide, carbon dioxide, sulfur dioxide, nitrogen oxide, particulate matter of black carbon etc., these environmental contaminants destroy the living environment of the mankind and the health of harm people; And these energy are non-renewable, along with the increase day by day of energy consumption, its reserves reduce day by day, and these energy will be exhausted some day.Therefore, under the overall background that energy and environment problem becomes increasingly conspicuous, find clean reproducible new forms of energy and replace traditional fossil energy to receive the concern of countries in the world.
In the research of various new forms of energy, hydrogen becomes the first-selection of researcher with completely clean combustion system and the advantage that can regenerate.Hydrogen is as a kind of desirable new energy, and it has following characteristics: 1. the exothermal efficiency of hydrogen is high, and the 1 gram of hydrogen that burns can release the heat of 160,000 joules, is about 3 times of burning 1 gram of gasoline heat release, and can recycles.2. the raw material of hydrogen mainly water, just has 2 hydrogen atoms in 1 hydrone; And account for earth surface 71% for water, so resource is very abundant.3. hydrogen in combustion, and except discharging huge energy, combustion product only has water, non-pollution discharge, can not cause environmental pollution, and be thus otherwise known as " clean energy resource ".4. hydrogen lightweight, density is little, be convenient to transport and carry, easily store, compared with the electricity stored with difficulty, superiority is more remarkable.5. the purposes of hydrogen is very extensive, and it not only can burn heat-dissipating, but also can produce all kinds of hydrogen-containing compound, and as the working medium etc. of absorbing heat.Although hydrogen energy source has above-mentioned so many advantages, at present, the development of hydrogen energy source is restricted owing to manufacturing the expensive of hydrogen.Traditional hydrogen production process is water electrolysis hydrogen production and high pressure, high temperature for hydrogen production, all needs to consume a large amount of electric energy and coal or natural gas, and the energy Ratios of the consumption energy that this fuel produces that burns also wants many.Not calculating in this expense makes it be only applicable to special purpose, as advanced space rocket or maintain fuel cell in spacecraft.Therefore, although for many years, many researchers propose to want hydrogen energy source to water, and this imagination fails really to realize always.
Summary of the invention
The defect of hydrogen energy source in water can not be utilized to overcome prior art at an easy rate, the invention provides a kind of steam pyrolysis Catalysts and its preparation method and steam pyrolysis hydrogen burning method.
The present invention solves above-mentioned technical problem by following technical proposals: a kind of steam pyrolysis catalyst, is characterized in that, this catalyst comprises following element: iron, aluminium, molybdenum, platinum, manganese and alkali metal; Wherein, described iron and described aluminium are respective simple substance, and described molybdenum, described platinum, described manganese and described alkali metal are respectively respective simple substance or compound.
Preferably, described platinum is simple substance, and described alkali-metal compound is sodium salt, and the compound of described molybdenum is molybdenite, and the compound of described manganese is manganese ore.
Preferably, described sodium salt is sodium chloride; Wherein, with the gross weight of described steam pyrolysis catalyst for benchmark, described iron is 1-15 % by weight, described aluminium is 12-42 % by weight, and described platinum is 1-17 % by weight, and described sodium chloride salt is 1-12 % by weight, described molybdenite is 11-30 % by weight, and described manganese ore is 8-44 % by weight.
Preferably, described iron is 3-10 % by weight, and described aluminium is 16-28 % by weight, and described platinum is 1-10 % by weight, and described sodium chloride salt is 1-10 % by weight, and described molybdenite is 11-18 % by weight, and described manganese ore is 17-49 % by weight.
Preferably, described steam pyrolysis catalyst is Powdered, the graininess of porous, the bulk of porous.
The present invention also provides a kind of preparation method of steam pyrolysis catalyst, it is characterized in that, the method comprises each component of described catalyst is ground into fine powder, with the adhesive do not reacted with described steam pyrolysis catalyst components, described each component is mixed well, compression molding under a certain pressure afterwards.
Preferably, described adhesive is one or more in waterglass, sticky rice syrup and paste, and described pressure is 2-8 atmospheric pressure.
The direct combustion method of hydrogen that the present invention also provides a kind of steam pyrolysis to obtain, it is characterized in that, the method comprises introduces water vapour from the import of the pressure vessel that described steam pyrolysis catalyst is housed, draw the mist of hydrogen and the oxygen obtained containing cracking from the outlet of described pressure vessel, this mist and a certain amount of detonator are introduced respectively burning place or this mist and laser are introduced burning place respectively and light a fire.
Preferably, described mist contains uncracked described steam.
Preferably, before described steam is introduced described pressure vessel, described outlet is closed; When the pressure in described pressure vessel reaches the first setting pressure, close described import; When the pressure in described pressure vessel reaches the second setting pressure, open described outlet; In described burning place igniting, then open described import.
Preferably, described first setting pressure is 1-4 atmospheric pressure, and described second setting pressure is 3-8 atmospheric pressure.
Preferably, described first setting pressure is 2.5-4 atmospheric pressure, and described second setting pressure is 5-6 atmospheric pressure.
Preferably, the bore of described import is less than the bore of described outlet.
Preferably, described detonator is methyl alcohol, natural gas, gasoline or diesel oil.
Preferably, when described detonator is liquid, described in the pipeline of detonator described in drainage and/or drainage, the pipeline of mist is equipped with the sheath holding cooling medium.
Preferably, the consumption of described catalyst is the water vapour of 0.3-2.5 kg/hour of/ton of cracking.
Preferably, described hydrogen directly burns for generation of water vapour, and the described water vapour for cracking is a part for the described water vapour produced.
Preferably, the described described water vapour for cracking is the 1-10 % by weight of the described water vapour produced.
Preferably, when described detonator is methyl alcohol, the consumption of described methyl alcohol is the water vapour of 4-10 kg/hour of/ton of preparation.
Positive progressive effect of the present invention is: the catalyst of the splitting water that prior art provides is all often precious metal, such as platinum, cost intensive.Catalyst provided by the invention have employed the raw material preparation of a large amount of cheapnesss, with low cost.In addition, catalyst provided by the invention stably can control the speed of steam pyrolysis, stably produces hydrogen, effectively prevents the generation of explosion accident.In addition, due to when hydrogen content be 4-66% mixture in atmosphere burning can blast, and be about about 62% by the content of hydrogen in mist of water decomposition, be just in time in the scope of combustion explosion.Therefore, at present, this area can't realize directly burning by the technology of the hydrogen of water decomposition.The present inventor surprisingly find when steam and hydrogen guide to together with the mist of oxygen burn in a flame source time, can undisturbedly, burn steadily, and provide a large amount of energy.Therefore, steam pyrolysis direct combustion method of hydrogen first time provided by the invention really achieves the imagination wanting hydrogen energy source to water.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of steam pyrolysis direct combustion method of hydrogen of the present invention.
Detailed description of the invention
Present pre-ferred embodiments is provided, to describe technical scheme of the present invention in detail below in conjunction with accompanying drawing.
The invention provides a kind of steam pyrolysis catalyst, it is characterized in that, this catalyst comprises following element: iron, aluminium, molybdenum, platinum, manganese and alkali metal; Wherein, described iron and described aluminium are respective simple substance, and described molybdenum, described platinum, described manganese and described alkali metal are respectively respective simple substance or compound.According to the result of study of the present inventor, the element of described this gang of alkali metal all can realize object of the present invention, such as lithium, sodium, potassium, rubidium, caesium.But, in order to industrial operation of being more convenient for, be preferably sodium.Although described molybdenum, described platinum, described manganese and described alkali-metal simple substance or compound all can realize object of the present invention, but the present inventor finds, in these materials, some catalyst effect being prepared by compound is better, and some is the better effects if of catalyst prepared by simple substance.In a preferred embodiment, described platinum is simple substance, and described alkali-metal compound can be sodium salt, the compound of described molybdenum can be molybdenum ore, is preferably molybdenite, is more preferably refining molybdenite, the compound of described manganese is manganese ore, is preferably refining manganese ore.Adopt the catalyst of mentioned component preparation effectively can be cracked into hydrogen and oxygen by catalyzed aqueous vapour.In order to improve catalytic effect further, in a preferred embodiment, described sodium salt is one or more in sodium chloride, sodium sulphate, sodium nitrate, but is more preferably sodium chloride; Wherein, with the gross weight of described steam pyrolysis catalyst for benchmark, described iron is 1-15 % by weight, described aluminium is 12-35 % by weight, and described platinum simple substance is 1-16 % by weight, and described sodium chloride salt is 1-12 % by weight, described molybdenite is 10-25 % by weight, and described manganese ore is 10-44 % by weight.In another preferred embodiment, described iron is 3-10 % by weight, described aluminium is 15-26 % by weight, described platinum simple substance is 1-10 % by weight, described sodium chloride salt is 1-10 % by weight, and described molybdenite is 10-22 % by weight, and described manganese ore is 8-35 % by weight, the catalyst prepared with this formula not only cost reduces further, and catalytic effect is better.Described steam pyrolysis catalyst can be prepared as the various forms of existing catalyst according to actual needs, such as, can be that Powdered, the graininess of porous, the bulk of porous and load are on other carrier.But in a preferred embodiment, above-mentioned steam pyrolysis catalyst preparing is the graininess of porous, the bulk of porous, most preferably is the bulk of porous.
The present invention also provides a kind of method preparing above-mentioned steam pyrolysis catalyst, such as, pulverize each component for powder, mix.In order to the bulk catalyst of the graininess or porous of preparing porous, this, except each component being pulverized as powder, mixes, also each component is mixed well with adhesive, in different mould, then make the difformity of porous.Above-mentioned adhesive does not react with described catalyst components.Therefore, in a preferred embodiment, the described method preparing steam pyrolysis catalyst comprises each component of described catalyst is ground into fine powder, described each component is mixed well, compression molding under a certain pressure afterwards with the adhesive do not reacted with described catalyst components.The described adhesive do not reacted with described catalyst components can for the known various adhesives do not reacted with water, but one or more being preferably in waterglass, sticky rice syrup and paste, most preferably be waterglass, in order to obtain certain porosity in shaping steam pyrolysis catalyst, described pressure can be 2-8 atmospheric pressure, be preferably 3-7 atmospheric pressure, be more preferably 4-6 atmospheric pressure.The each component preparing steam pyrolysis catalyst of the present invention is all less expensive, and preparation technology is simple, therefore produces steam pyrolysis catalyst of the present invention with low cost, and is easy to produce.Steam pyrolysis catalyst of the present invention can not only effective splitting water steam, also can produce hydrogen by catalytic pyrolysis water; Such as steam pyrolysis catalyst of the present invention can make warm water release hydrogen lentamente, enables hot water promptly release hydrogen, such as, can make the very fast releasing hydrogen gas of the water of 60-80 DEG C.Steam pyrolysis catalyst of the present invention controllably, stably can produce hydrogen at splitting water steam.Therefore, the direct combustion method of hydrogen that the present invention also provides a kind of steam pyrolysis to obtain, it is characterized in that, the method comprises introduces water vapour from the import of the pressure vessel that described steam pyrolysis catalyst is housed, draw the mist of hydrogen and the oxygen obtained containing cracking from the outlet of described pressure vessel, this mist and a certain amount of detonator are introduced respectively burning place or this mist and laser are introduced burning place respectively and light a fire.The amount of the detonator used can be determined according to actual requirement.Described steam pyrolysis catalyst can be powdery, the graininess of porous or the bulk of porous; When described steam pyrolysis catalyst be powdery or graininess time, need outfit loader in described pressure vessel, porose on the wall of this loader, the aperture of this some holes is less than the diameter of powder or particle.When described steam pyrolysis catalyst is block, in described pressure vessel, only need the shelf can placing block.Such as, because for the ease of operation, described steam pyrolysis catalyst is preferably block, can once once be put in described pressure vessel by the catalyst required for 1 day.Described burning place can be the various positions needing heating, and such as, when for heating steamer generation steam, described burning place is exactly the burner hearth of boiler.Described boiler can be existing boiler, the boiler that structure also can be adopted more simply special design for burning hydrogen.When there is steam in mist, adopt seldom some detonators just can burn safely.Therefore, in a preferred embodiment, described mist contains uncracked described steam.
In order to before ignition, obtain more hydrogen, in a preferred embodiment, before described steam is introduced described pressure vessel, close described outlet; When the pressure in described pressure vessel reaches the first setting pressure, close described import; When the pressure in described pressure vessel reaches the second setting pressure, open described outlet; In described burning place igniting, then open described import.Described first setting pressure and described second setting pressure can according to the withstand voltage situation of pressure vessel and/or the temperature settings according to flame during burning.In a preferred embodiment, described first setting pressure is 1-4 atmospheric pressure, and be preferably 2.5-4 atmospheric pressure, described second setting pressure is 3-8 atmospheric pressure, is preferably 5-6 atmospheric pressure.In another preferred embodiment, described first setting pressure is 2.5-4 atmospheric pressure, and described second setting pressure is 5-6 atmospheric pressure.Pressure in order to avoid pressure vessel increases too many, and in a preferred embodiment, the bore of described import is less than the bore of described outlet, to be conducive to discharging the pressure in pressure vessel.The burning that described detonator and laser are hydrogen provides naked light.Described detonator can be the detonator of existing gaseous state or liquid state, such as, can be methyl alcohol, natural gas, gasoline or diesel oil, but is preferably methyl alcohol.When described detonator is liquid, in order to prevent the liquid blocking of shower nozzle place, described in the pipeline of detonator described in drainage and/or drainage, the pipeline of mist is equipped with the sheath holding cooling medium.Described cooling medium can be various cooling medium of the prior art, but is in cost consideration, is preferably water.The consumption of catalyst can according to expecting that the speed of steam pyrolysis sets, there is suitable speed (even if the hydrogen that produces of steam pyrolysis can burn steadily to control steam pyrolysis, and the risk that can not blast), the consumption of described catalyst can be the water vapour of 0.2-2.3 kg/hour of/ton of cracking, be preferably the water vapour of 0.6-1.8 kg/hour of/ton of cracking, most preferably be the water vapour of 0.8-1.5 kg/hour of/ton of cracking.In one embodiment, described hydrogen directly burns for generation of water vapour, described water vapour for cracking is the part of described water vapour produced, and this water vapour self-loopa can reduce the use of other auxiliary equipment further as the embodiment of fuel.When outwards providing continuously water vapour, when needs increase described catalyst, can the import and export of temporary close pressure vessel, then directly add described catalyst, the time required for this is very short, general a few minutes.Certainly the place be preferably importing and exporting is furnished with triple valve, and is furnished with two pressure vessels, to realize almost continuously every the hydrogen providing steam pyrolysis.For the described water vapour of cracking amount can according to flame temperature and the capacity of steamer that produces steam set; The such as described described water vapour for cracking is the 1-10 % by weight of the described water vapour produced.For the steamers of 4 tons (i.e. 4 tons of steam/hour, hereinafter the steamer of described 4 tons has identical connotation), the described water vapour being generally used for cracking is the 3-8 % by weight of the described water vapour produced, when being preferably the 5-8 % by weight of the described water vapour produced, the flame temperature of acquisition can reach more than 1000 DEG C usually.When described detonator is methyl alcohol, the consumption of described methyl alcohol can be the water vapour of 4-15 kg/hour of/ton of preparation, be preferably the water vapour of 5-12 kg/hour of/ton of preparation, be more preferably the water vapour of 6-8 kg/hour of/ton of preparation, above embodiment can obtain extraordinary combustion efficiency for the steamer of 4 tons.Obtain suitable flame temperature, in the preferred embodiment of one, the described described water vapour for cracking is the 1-10 % by weight of the described water vapour produced, and the consumption of described methyl alcohol can be the water vapour of 4-10 kg/hour of/ton of preparation.For the steamer of 4 tons, the described water vapour for cracking is the 3-8 % by weight of the described water vapour produced,
When being preferably the 4-6 % by weight of the described water vapour produced, the consumption of described methyl alcohol can be the water vapour of 5-10 kg/hour of/ton of preparation, is more preferably the water vapour of 8-10 kg/hour of/ton of preparation.As shown in Figure 1, preferably, the hydrogen that steam pyrolysis produces directly burns the heat that provides for generation of steam to the schematic diagram of a detailed description of the invention of the method that the hydrogen that steam pyrolysis provided by the invention produces directly burns.As shown in Figure 1, above boiler 3, the left and right sides is respectively fitted with the outer pipeline supplying the pipeline of water vapour 5 and the water vapour 6 for self-loopa cracking, and water vapour 4 is used for the water vapour of cracking respectively by this two Cemented filling exterior-applied liquid medicine steam and self-loopa; The water vapour of self-loopa cracking enters described pressure vessel 1 from described import 7, and steam pyrolysis catalyst provided by the invention is housed in this pressure vessel, steam in this pressure vessel by the cracking of steam pyrolysis catalyst; The oxygen that cracking produces, hydrogen and uncracked steam outlet 8 deliver to burning place 9 through piping, herein for being placed in the shower nozzle of boiler; Detonator 2 is also sent to burning place 9 by another pipeline, lights a fire in burning place.The number of shower nozzle can be set as 1 or multiple as required, such as, and 2,3 or 4 etc.The method that the hydrogen that steam pyrolysis provided by the invention produces directly burns provides a large amount of heats, and such as, during prior art coal combustion, fire box temperature is about 800 DEG C, needs cost at least 2 hours from the water generates steam of cold conditions; The method flame temperature that the hydrogen that steam pyrolysis provided by the invention produces directly burns, higher than 1000 DEG C, about about 1300 DEG C, only needs cost about 35 minutes from the water generates steam of cold conditions.The method that water-splitting hydrogen provided by the invention directly burns, can provide a large amount of heats very soon, and this heat seems not only to provide primarily of combustion of hydrogen, or the extra high cause of the heat utilization efficiency being interpreted as this combustion system.Be described in detail below by heat Calculation: for 4 tons of steamers (water vapour being less than the generation of 5% is used as cracking and produces hydrogen): in the prior art, within one day 24 hours, need the coal of burning about 4500 kilocalories/kilogram to be about 18-20 ton, the heat provided by burning 18 tons of coals is: 18 × 9000 × 4500 kilocalories=9 × 112 kilocalories.In embodiments of the present invention, within one day, need the methyl alcohol of burning about 700 kilograms and by about 4.8 tons of water vapours (4 tons of steamers 5% steam be used for cracking and produce hydrogen: 4 tons/hour × 24 hours × 0.05=4.8 ton) hydrogen (suppose that these steam are all cracked into hydrogen, then the amounts of hydrogen produced is: 4.8 tons × 2 ÷ 18=0.53 tons) of cracking.The heat provided by methyl alcohol (combustion heat of methyl alcohol is 1366.8KJ/mo1) is about: 1366.8 ÷ (46 × 4.2) × 1000 × 700=4.95 × 106 kilocalorie.The heat provided by these hydrogen (combustion heat of hydrogen is 284.8KJ/mo1) is: 284.8 ÷ (2 × 4.2) × 1000 × 0.53 × 1000=1.8 × 107 kilocalorie.The heat altogether produced by methyl alcohol and hydrogen is: 2.3 × 107 kilocalories.Visible, be about about 4 times that the present invention's direct metabolic water steam cracking produces the theoretical heat that hydrogen produces by the theoretical heat burning coal generation in a day, but find when practical application, the heat that these two kinds of modes provide all is merely able to the steam for providing 96 tons.As can be seen here, the actual calorific value efficiency of coal is very low, and the actual calorific value efficiency that direct metabolic water steam cracking provided by the invention produces hydrogen is very high.Or the present invention's direct metabolic water steam cracking produces hydrogen can provide so a large amount of heats to be that other substance combustion causes, such as hydrogen ion burning.The energy level that usual molecule burning produces is generally about 104, and the energy level that Plasma burning produces is generally about 107, and the energy level that atomic nucleus burning produces is generally about 109.Some scientists once inferred following phenomenon: blowed a burst of violent strong wind across the sea; After strong wind, the sea of thousands of meters is lighted suddenly exceedingly high big fire.The reason that big fire causes, is because that gust occurs fiercely to rub with 200 kilometers of strong wind galloped at all speed per hour and seawater, creates very high heat, hydrogen atom in water is separated with oxygen atom, and pass through the effect of electric charge in strong wind, hydrogen ion is blasted, thus defines in " sea of fire ".According to scientist's estimation, the energy that this " sea of fire " discharges, the whole energy produced when being equivalent to 200 h-bomb blasts.Perhaps, produce in the method for hydrogen at direct metabolic water steam cracking provided by the invention, a part of hydrogen ion that cracking produces in pressure vessel does not also have enough time to form hydrogen molecule to carry out having burnt, therefore, it is possible to discharge so a large amount of heats with regard to directly arriving burning place.Can discharge the mechanism of so large calorimetric for direct combustion method of hydrogen provided by the invention, the present inventor does not also understand fully up till now, awaits further research.Above-mentioned mechanism, applicant is also only that one is wherein probed into.Direct metabolic water steam cracking provided by the invention is adopted to produce hydrogen method, not only environmental protection, renewable, and also cost is very cheap.
The present invention is further illustrated below for 4 tons of steam ovens (4 tons steam/hour).
Embodiment 1
Fe, pure aluminum, simple substance platinum, sodium chloride, refining molybdenite, refining manganese ore are pulverized respectively.The manganese mineral powder waterglass of 0.3 kilogram of iron powder, 08 kilogram of aluminium powder, 0.6 kilogram of platinum powder, the sodium chloride powder of 1.2 kilograms, the molybdenite powder of 1.2 kilograms and 4.5 kilograms is mixed well, is placed in square dies, compression molding under 3 atmospheric pressure.
Embodiment 2
Fe, pure aluminum, simple substance platinum, sodium chloride, refining molybdenite, refining manganese ore are pulverized respectively.The manganese mineral powder waterglass of 0.5 kilogram of iron powder, 3 kilograms of aluminium powders, 0.1 kilogram of platinum powder, the sodium chloride powder of 0.8 kilogram, the molybdenite powder of 2.5 kilograms and 0.8 kilogram is mixed well, is placed in square dies, compression molding under 8 atmospheric pressure.
Embodiment 3
Fe, pure aluminum, simple substance platinum, sodium chloride, refining molybdenite, refining manganese ore are pulverized respectively.The manganese mineral powder waterglass of 1.5 kilograms of iron powders, 1.3 kilograms of aluminium powders, 1.5 kilograms of platinum powders, the sodium chloride powder of 0.1 kilogram, the molybdenite powder of 1 kilogram and 3.5 kilograms is mixed well, is placed in square dies, compression molding under 4 atmospheric pressure.
Fe, pure aluminum, simple substance platinum, sodium chloride, refining molybdenite, refining manganese ore are pulverized by embodiment 4 respectively.The manganese mineral powder waterglass of 1 kilogram of iron powder, 2.2 kilograms of aluminium powders, 0.8 kilogram of platinum powder, the sodium chloride powder of 0.8 kilogram, the molybdenite powder of 1.2 kilograms and 2.5 kilograms is mixed well, is placed in square dies, compression molding under 6 atmospheric pressure.
Embodiment 5
Fe, pure aluminum, simple substance platinum, sodium chloride, refining molybdenite, refining manganese ore are pulverized respectively.The manganese mineral powder waterglass of 1.6 kilograms of iron powders, 5 kilograms of aluminium powders, 1.6 kilograms of platinum powders, the sodium chloride powder of 0.8 kilogram, the molybdenite powder of 3 kilograms and 4 kilograms is mixed well, is placed in square dies, compression molding under 7 atmospheric pressure.The catalyst steam pyrolysis catalyst prepared by above-described embodiment 1-5 is tested respectively.
Embodiment 6
Such as steamer is the steamer (2 shower nozzles are housed) of 4 tons is example, start to produce water vapour with coal combustion, the water vapour of about 5 % by weight of the water vapour of generation is used for catalytic pyrolysis, steam pyrolysis catalyst prepared by the embodiment 1 loading about 5 kilograms in pressure vessel, detonator is methyl alcohol.As shown in Figure 1, the valve of closing control outlet, opens the valve controlling steam entry.When making the pressure of pressure vessel for about 3 atmospheric pressure, the valve of closing control steam entry; When making the pressure of pressure vessel for about 6 atmospheric pressure, open the valve controlling outlet, and open the valve controlling methyl alcohol and flow out, igniting.Open the valve controlling steam entry.Within 1 day, use the amount of described steam pyrolysis catalyst for about 4.8 kilograms (water vapours of 1 kg/hour of/ton of cracking), use the consumption of methyl alcohol to be 550 kilograms (water vapours of 6.2 kgs/hour of/ton of preparations).
Embodiment 7
Such as steamer is the steamer (2 shower nozzles are housed) of 4.2 tons is example, start to produce water vapour with coal combustion, the water vapour of about 3 % by weight of the water vapour of generation is used for catalytic pyrolysis, steam pyrolysis catalyst prepared by the embodiment 2 loading about 3.5 kilograms in pressure vessel, detonator is methyl alcohol.As shown in Figure 1, the valve of closing control outlet, opens the valve controlling steam entry.When making the pressure of pressure vessel for about 2.5 atmospheric pressure, the valve of closing control steam entry; When making the pressure of pressure vessel for about 5 atmospheric pressure, open the valve controlling outlet, and open the valve controlling methyl alcohol and flow out, igniting.Open the valve controlling steam entry.Within 1 day, use the amount of described steam pyrolysis catalyst for about 3.8 kilograms (water vapours of 1.2 kgs/hour of/ton of cracking), use the consumption of methyl alcohol to be 750 kilograms (water vapours of 7.3 kgs/hour of/ton of preparations).
Embodiment 8
Such as steamer is the steamer (1 shower nozzle is housed) of 0.5 ton is example, start to produce water vapour with coal combustion, the water vapour of about 8 % by weight of the water vapour of generation is used for catalytic pyrolysis, steam pyrolysis catalyst prepared by the embodiment 3 loading about 1 kilogram in pressure vessel, detonator is methyl alcohol.As shown in Figure 1, the valve of closing control outlet, opens the valve controlling steam entry.When making the pressure of pressure vessel for about 1 atmospheric pressure, the valve of closing control steam entry; When making the pressure of pressure vessel for about 3 atmospheric pressure, open the valve controlling outlet, and open the valve controlling methyl alcohol and flow out, igniting.Open the valve controlling steam entry.Within 1 day, use the amount of described steam pyrolysis catalyst for about 1 kilogram (water vapour of 1 kg/hour of/ton of cracking), use the consumption of methyl alcohol to be 50 kilograms (water vapours of 4.1 kgs/hour of/ton of preparations).
Embodiment 9
Such as steamer is the steamer (2 shower nozzles are housed) of 4 tons is example, start to produce water vapour with coal combustion, the water vapour of about 6 % by weight of the water vapour of generation is used for catalytic pyrolysis, steam pyrolysis catalyst prepared by the embodiment 4 loading about 5.5 kilograms in pressure vessel, detonator is methyl alcohol.As shown in Figure 1, the valve of closing control outlet, opens the valve controlling steam entry.When making the pressure of pressure vessel for about 3 atmospheric pressure, the valve of closing control steam entry; When making the pressure of pressure vessel for about 6 atmospheric pressure, open the valve controlling outlet, and open the valve controlling methyl alcohol and flow out, igniting.Open the valve controlling steam entry.Within 1 day, using the amount of described steam pyrolysis catalyst for about 5.5 kilograms (water vapours of 0.95 kg/hour of/ton of cracking), is 500 kilograms (water vapours of 5.2 kgs/hour of/ton of preparations) with the consumption of methyl alcohol.
Embodiment 10
Such as steamer is the steamer (4 shower nozzles are housed) of 10 tons is example, start to produce water vapour with coal combustion, the water vapour of about 3.5 % by weight of the water vapour of generation is used for catalytic pyrolysis, steam pyrolysis catalyst prepared by the embodiment 5 loading about 12 kilograms in pressure vessel, detonator is methyl alcohol.As shown in Figure 1, the valve of closing control outlet, opens the valve controlling steam entry.When making the pressure of pressure vessel for about 4 atmospheric pressure, the valve of closing control steam entry; When making the pressure of pressure vessel for about 8 atmospheric pressure, open the valve controlling outlet, and open the valve controlling methyl alcohol and flow out, igniting.Open the valve controlling steam entry.Within 1 day, use the amount of described steam pyrolysis catalyst for about 12 kilograms (water vapours of 1.4 kgs/hour of/ton of cracking), use the consumption of methyl alcohol to be 1200 kilograms (water vapours of 5 kgs/hour of/ton of preparations).
Claims (10)
1. a steam pyrolysis catalyst, is characterized in that, this catalyst comprises following element: iron, aluminium, molybdenum, platinum, manganese and alkali metal; Wherein, described iron and described aluminium are respective simple substance, and described molybdenum, described platinum, described manganese and described alkali metal are respectively respective simple substance or compound.
2. steam pyrolysis catalyst according to claim 1, is characterized in that, described platinum is simple substance, and described alkali-metal compound is sodium salt, and the compound of described molybdenum is molybdenite, and the compound of described manganese is manganese ore.
3. steam pyrolysis catalyst according to claim 2, is characterized in that, described sodium salt is sodium chloride; Wherein, with the gross weight of described steam pyrolysis catalyst for benchmark, described iron is 1-15 % by weight, described aluminium is 12-42 % by weight, and described platinum is 1-17 % by weight, and described sodium chloride salt is 1-12 % by weight, described molybdenite is 11-30 % by weight, and described manganese ore is 8-44 % by weight.
4. steam pyrolysis catalyst according to claim 3, it is characterized in that, described iron is 3-10 % by weight, described aluminium is 16-28 % by weight, described platinum is 1-10 % by weight, described sodium chloride salt is 1-10 % by weight, and described molybdenite is 11-18 % by weight, and described manganese ore is 17-49 % by weight.
5. steam pyrolysis catalyst according to claim 1, is characterized in that, described steam pyrolysis catalyst is Powdered, the graininess of porous, the bulk of porous.
6. the steam pyrolysis catalyst in claim 1-5 described in any one produces the application in hydrogen at catalytic pyrolysis water.
7. prepare the method for steam pyrolysis catalyst described in any one in claim 1-5 for one kind, it is characterized in that, the method comprises each component of described catalyst is ground into fine powder, with the adhesive do not reacted with described steam pyrolysis catalyst components, described each component is mixed well, compression molding under a certain pressure afterwards.
8. preparation method according to claim 7, is characterized in that, described adhesive is one or more in waterglass, sticky rice syrup and paste, and described pressure is 2-8 atmospheric pressure.
9. the direct combustion method of hydrogen that obtains of a steam pyrolysis, it is characterized in that, the method comprises introduces water vapour from the import of the pressure vessel that steam pyrolysis catalyst described in any one claim 1-5 is housed, draw the mist of hydrogen and the oxygen obtained containing cracking from the outlet of described pressure vessel, this mist and a certain amount of detonator are introduced respectively burning place or this mist and laser are introduced burning place respectively and light a fire.
10. the direct combustion method of hydrogen that obtains of steam pyrolysis according to claim 9, it is characterized in that, described mist contains uncracked described steam.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111001421A (en) * | 2019-04-28 | 2020-04-14 | 蔡勇梅 | Catalyst for producing hydrogen from steam, preparation method, application and combustion device thereof |
| CN115010086A (en) * | 2022-05-20 | 2022-09-06 | 泰州中和氢能源科技有限公司 | Cracking agent for hydrogen production, preparation method thereof and method for preparing hydrogen by using cracking agent |
| CN115650164A (en) * | 2022-11-03 | 2023-01-31 | 海南巨澜新能源有限公司 | Hydrogen production fuel based on water reaction and combustion process thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111001421A (en) * | 2019-04-28 | 2020-04-14 | 蔡勇梅 | Catalyst for producing hydrogen from steam, preparation method, application and combustion device thereof |
| CN115010086A (en) * | 2022-05-20 | 2022-09-06 | 泰州中和氢能源科技有限公司 | Cracking agent for hydrogen production, preparation method thereof and method for preparing hydrogen by using cracking agent |
| CN115010086B (en) * | 2022-05-20 | 2024-01-26 | 泰州中和氢能源科技有限公司 | Cracking agent for hydrogen production, preparation method thereof and method for preparing hydrogen by using cracking agent |
| CN115650164A (en) * | 2022-11-03 | 2023-01-31 | 海南巨澜新能源有限公司 | Hydrogen production fuel based on water reaction and combustion process thereof |
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