CN106944082A - A kind of preparation method for synthesizing gas by reforming methane with co 2 catalyst - Google Patents

A kind of preparation method for synthesizing gas by reforming methane with co 2 catalyst Download PDF

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CN106944082A
CN106944082A CN201610003114.0A CN201610003114A CN106944082A CN 106944082 A CN106944082 A CN 106944082A CN 201610003114 A CN201610003114 A CN 201610003114A CN 106944082 A CN106944082 A CN 106944082A
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catalyst
solution
accordance
hydrogen
precarsor
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CN106944082B (en
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孙晓丹
张舒冬
刘继华
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China Petroleum and Chemical Corp
Sinopec Fushun Research Institute of Petroleum and Petrochemicals
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China Petroleum and Chemical Corp
Sinopec Fushun Research Institute of Petroleum and Petrochemicals
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    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
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    • B01J23/70Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
    • B01J23/76Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/84Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/85Chromium, molybdenum or tungsten
    • B01J23/88Molybdenum
    • B01J23/887Molybdenum containing in addition other metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/8877Vanadium, tantalum, niobium or polonium
    • B01J35/396
    • CCHEMISTRY; METALLURGY
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    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B3/00Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
    • C01B3/02Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
    • C01B3/32Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air
    • C01B3/34Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents
    • C01B3/38Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents using catalysts
    • C01B3/40Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents using catalysts characterised by the catalyst
    • CCHEMISTRY; METALLURGY
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    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/02Processes for making hydrogen or synthesis gas
    • C01B2203/0205Processes for making hydrogen or synthesis gas containing a reforming step
    • C01B2203/0227Processes for making hydrogen or synthesis gas containing a reforming step containing a catalytic reforming step
    • C01B2203/0238Processes for making hydrogen or synthesis gas containing a reforming step containing a catalytic reforming step the reforming step being a carbon dioxide reforming step
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/10Catalysts for performing the hydrogen forming reactions
    • C01B2203/1041Composition of the catalyst
    • C01B2203/1047Group VIII metal catalysts
    • C01B2203/1052Nickel or cobalt catalysts
    • C01B2203/1058Nickel catalysts
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    • C01B2203/00Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/10Catalysts for performing the hydrogen forming reactions
    • C01B2203/1041Composition of the catalyst
    • C01B2203/1082Composition of support materials
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/10Catalysts for performing the hydrogen forming reactions
    • C01B2203/1041Composition of the catalyst
    • C01B2203/1094Promotors or activators
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/12Feeding the process for making hydrogen or synthesis gas
    • C01B2203/1205Composition of the feed
    • C01B2203/1211Organic compounds or organic mixtures used in the process for making hydrogen or synthesis gas
    • C01B2203/1235Hydrocarbons
    • C01B2203/1241Natural gas or methane
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/50Improvements relating to the production of bulk chemicals
    • Y02P20/52Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts

Abstract

The present invention relates to a kind of preparation method for synthesizing gas by reforming methane with co 2 catalyst, the catalyst includes active component, auxiliary agent and carrier;The preparation method of the catalyst comprises the following steps:Catalyst precarsor A is prepared first, then reduction treatment is carried out to catalyst precarsor A, it is well mixed auxiliary agent presoma is soluble in water with furfural aqueous solution, then it is added to together with catalyst precarsor A in autoclave, reacted after adding solution C, filtering gained solid sample obtains catalyst again after drying, calcination process after obtained solidliquid mixture processing separation.This method takes full advantage of waste residue oil hydrogenating treatment catalyst, has saved cost, and the catalyst reaction activity of preparation is high, both reduces metal consumption, the selectivity of product is improved again.

Description

A kind of preparation method for synthesizing gas by reforming methane with co 2 catalyst
Technical field
The present invention relates to a kind of preparation method for synthesizing gas by reforming methane with co 2 catalyst, more particularly, to a kind of preparation method for synthesizing gas by reforming methane with co 2 loading type nickel-based catalyst.
Background technology
Methane and carbon dioxide is cheap in nature and resourceful carbon compound; using the reforming reaction producing synthesis gas of methane and carbon dioxide, for alleviating energy crisis, mitigate due to caused by the discharge of greenhouse gases global climate warm it is significant.The synthesis gas that methane is prepared with CO 2 reformation has H2The characteristics of/CO≤1, go for F- T synthesis, the high chemicals of added value such as production higher hydrocarbon.
The catalyst for being presently used for synthesizing gas by reforming methane with co 2 is more based on metal supported catalyst, is broadly divided into two major classes:Noble metal and non-precious metal catalyst.Although noble metal catalyst is with excellent reactivity worth, expensive, sintering is also easy under hot conditions and is lost in.Non-precious metal catalyst is that nickel or cobalt are carried on the carriers such as aluminum oxide, silica, magnesia, zirconium oxide, titanium oxide, the advantage of this system is that reactivity worth is good, catalyst preparation low cost, but catalyst carbon accumulation resisting ability is low, can cause inactivation because of carbon distribution, sintering.
CN 101352687A discloses a kind of bimetallic catalyst of modification, and the catalyst is with a kind of γ-Al of modification2O3For carrier, the Co using mass percent as 1% ~ 20% Ni and 1% ~ 20% is prepared for active component using infusion process.But the preparation technology is more complicated, cost is higher.
CN 102658145A discloses a kind of MgO(111)The preparation method of supported nickel based catalysts, first step carrier synthesis, is dissolved in absolute ethyl alcohol by magnesium rod, sequentially adds methoxy benzyl alcohol, methanol, is reacted in autoclave, roasting obtains carrier;Carrier impregnation is obtained metallic catalyst by second step in nickel acetylacetonate solution.But the preparation cost of the catalyst is too high, and preparation process is whard to control.
CN 1280882A discloses a kind of nickel-base catalyst of nano-crystal oxide load.The catalyst is that the aqueous solution of nickel nitrate is added in nanocrystal oxide, and stirring, dry, roasting are made.The reaction of gained catalyst is lasted a long time, but this method preparation process is complicated, and cost is higher.
Although catalyst made from above-mentioned patented method obtains preferable synthesizing gas by reforming methane with co 2 reactivity worth, still suffer from that cost is higher, catalyst easy carbon distribution the problems such as.Reactant molecule is in catalyst granules during mass transfer, due to the difference of diffusion velocity, two kinds of reactant molecule ratios are caused gradient radially occur in catalyst granules, particle inside methane is much larger than inside stoichiometry, therefore catalyst granules with carbon dioxide ratio and is more easy to carbon distribution.
The content of the invention
To overcome weak point of the prior art, the invention provides a kind of preparation method for synthesizing gas by reforming methane with co 2 catalyst, the characteristics of catalyst prepared by this method has with low cost, metal component utilization rate high and is selective good.
The invention provides a kind of preparation method for synthesizing gas by reforming methane with co 2 catalyst, the catalyst includes active component, auxiliary agent and carrier, active component is Ni, and auxiliary agent is the one or more in Zr, La, Ce, Co, Mo or V, and carrier is aluminum oxide;On the basis of each element quality accounts for the percentage of catalyst quality in catalyst, the content of active component is 10wt%~20wt%, and the content of auxiliary agent is 7wt%~15wt%, and surplus is carrier;The preparation method of the catalyst comprises the following steps:
(1)Waste residue oil hydrogenating treatment catalyst is extracted to the oil removed on catalyst surface, after 80~150 DEG C are dried, high-temperature roasting processing is carried out, obtains catalyst precarsor A, wherein, sintering temperature is 300 ~ 600 DEG C, and roasting time is 2~6h;
(2)Using reducing atmosphere to step(1)Obtained catalyst precarsor A carries out reduction treatment;
(3)Auxiliary agent presoma is soluble in water, solution B is obtained, and be well mixed with furfural aqueous solution, then with step(2)Obtained catalyst precarsor A is added in autoclave together;
(4)High molecular weight water soluble polymer, active component presoma is soluble in water, obtain solution C;Solution C is added to step(3)In described autoclave, replaced 2~5 times with hydrogen after sealing, then adjust Hydrogen Vapor Pressure to 2~4MPa, 1~3h is reacted at 100~200 DEG C;
(5)Treat step(4)Obtained solidliquid mixture is down to 20~30 DEG C, adds absolute ethyl alcohol or aqueous citric acid solution, places 1~2h, then filters, gained solid sample after drying, calcination process, obtains catalyst again.
The present invention is used in the preparation method of synthesizing gas by reforming methane with co 2 catalyst, step(1)Described in waste residue oil hydrogenating treatment catalyst using aluminum oxide as carrier, active metal component contains Mo and Co, is not reached former reaction to require, or due to level with reason without the residual oil hydrocatalyst that is used in the fixed bed or ebullated bed of complete deactivation;Described dead catalyst is due to being hydrotreating catalyst used in hydrogenation process, so in hydrogenation process, typically having part metals Ni and V deposition;Mo content is 5wt% ~ 10wt% in described catalyst precarsor A, and Co content is 1wt% ~ 3wt%, and V content is 1wt% ~ 3wt%, and Ni content is 1wt% ~ 5wt%.Step(1)Described in extracting solvent can be petroleum ether, toluene in one or two.
The present invention is used in the preparation method of synthesizing gas by reforming methane with co 2 catalyst, step(2)Described in reducing atmosphere be the mixed gas of hydrogen or hydrogen and nitrogen, hydrogen volume percentage composition is 10%~95% in the mixed gas.Specific reduction treatment process is as follows:Catalyst precarsor is warming up to 300~600 DEG C under nitrogen atmosphere, the mixed gas of hydrogen or hydrogen and nitrogen is then passed to, in 0.1~0.5MPa(Absolute pressure)Handle after 4~8h, room temperature is down in a nitrogen atmosphere.
The present invention is used in the preparation method of synthesizing gas by reforming methane with co 2 catalyst, step(3)Described in auxiliary agent presoma be one or more in zirconium nitrate, cerous nitrate, lanthanum nitrate, preferably zirconium nitrate;
In the solution B, auxiliary agent is in terms of element, and the mass fraction in solution B is 1%~10%;The mass fraction of furfural is 30%~50% in the furfural aqueous solution;Step(3)Described in furfural aqueous solution and the mass ratio of solution B be 3 ~ 5, the gross mass and step of the solution B and furfural aqueous solution(2)Obtained reduction rear catalyst precursor A mass ratio is 3~6.
The present invention is used in the preparation method of synthesizing gas by reforming methane with co 2 catalyst, step(4)Described in high molecular weight water soluble polymer be polyethylene glycol(PEG), polyvinylpyrrolidone(PVP), polyvinyl alcohol(PVA)In one or more;The active component presoma is the one or more in nickel nitrate, nickel acetate, nickel sulfate, nickel chloride, preferably nickel nitrate;In the solution C, in active component presoma it is nickeliferous mass fraction in solution C is counted as 0.5%~3% using element, mass fraction of the high molecular weight water soluble polymer in solution C is 3~6 times of Ni element mass fractions.
The present invention is used in the preparation method of synthesizing gas by reforming methane with co 2 catalyst, step(5)Described in add the quality of absolute ethyl alcohol or citric acid and the mass ratio of high molecular weight water soluble polymer be 2 ~ 4;The mass fraction of the aqueous citric acid solution is 10%~20%;The drying temperature is 70~150 DEG C, and preferably 80~120 DEG C, drying time is 2~12h, preferably 4~8h;The sintering temperature is 350~650 DEG C, and preferably 400~600 DEG C, roasting time is 2~12h, preferably 4~8h.
Catalyst prepared by the inventive method can apply to synthesizing gas by reforming methane with co 2 reaction.Catalyst using before in a hydrogen atmosphere, 600~800 DEG C of 2~5h of prereduction.Catalyst prepared by the inventive method reacts applied to synthesizing gas by reforming methane with co 2, and preferable process conditions are:The composition CH of unstripped gas4/CO2Mol ratio is 1~1.5, can contain Ar, N in unstripped gas2Or the dilution such as He property gas, 2000~6000h of unstripped gas air speed-1, reaction pressure is 0.1~2Mpa, and reaction temperature is 700~900 DEG C.
Compared with prior art, the catalyst for synthesizing gas by reforming methane with co 2 that a kind of active metal outer layer is distributed can be obtained by preparation method of the present invention.In the present invention, furfural aqueous phase hydrogenation reaction is carried out using waste residue oil hydrogenating treatment catalyst.Add active metal predecessor and high molecular weight water soluble polymer simultaneously in the system of furfural hydrogenation, on the one hand hinder active metal to the diffusion inside catalyst granules using furfural hydrogenation product;On the other hand, using the coordination between active metal predecessor and high molecular weight water soluble polymer, concentration difference of the active metallic ion inside and outside catalyst granules in reduction solution slows down active metal to the diffusion velocity inside catalyst granules.This method takes full advantage of waste residue oil hydrogenating treatment catalyst, has saved cost, and the catalyst reaction activity of preparation is high, both reduces metal consumption, the selectivity of product is improved again.Catalyst precarsor processing simultaneously is completed with the step of catalyst preparation one, and preparation technology is simple, is conducive to industrial amplification.
Embodiment
The technology contents and effect of the present invention are further illustrated with reference to embodiment, but are not so limited the present invention.
Appreciation condition:With hydrogen reducing 4 hours at 700 DEG C before catalyst reaction of the present invention.Reacted in continuous sample introduction fixed-bed quartz reactor, 700 DEG C of reaction temperature, unstripped gas composition CH4/CO2/Ar =1/1/4(Mol ratio), air speed 4000h-1, gas-chromatography on-line analysis is used after the condensed water removal of product.Reaction starts sampling analysis after 1 ~ 3 hour, and evaluation result is shown in Table 1.Average activity of the reaction result for catalyst after 800 DEG C of 50h that work in table 1.
The metal element content in catalyst is determined using XRF analysis technology.Using the distribution situation of active component on a catalyst in the catalyst prepared by the scanning electron microscope analysis present invention.The scanning electron microscope analysis of catalyst activity component nickel the results are shown in Table 2 obtained by the embodiment of the present invention and comparative example.
Embodiment 1
From the useless hydrotreating catalyst of fixed bed residual hydrogenation commercial plant(MoCo/Al2O3)The oil removed on catalyst surface is extracted by petroleum ether, in 110 DEG C of dry 8 h, gained catalyst is calcined 4h at 450 DEG C, catalyst precarsor A is obtained, wherein Mo is accounted for catalyst precarsor A weight 6.1wt%, Co in terms of element and catalyst precarsor A weight 1.8wt% is accounted in terms of element, Ni is accounted for catalyst precarsor A weight 2.3wt%, V in terms of element and catalyst precarsor A weight 1.9wt% is accounted in terms of element;20g catalyst precarsors A is activated in the mixed atmosphere of hydrogen, hydrogen volume content is 80% in mixed gas, reducing condition is 450 DEG C, 0.2MPa(Absolute pressure), recovery time 4h;2.54g zirconium nitrates are dissolved in 16mL deionized waters, solution B is obtained, and are well mixed with the mass fraction of its 4 times of quality for 40% furfural aqueous solution, are then added to together with the catalyst precarsor A after reduction activation in autoclave;15g polyethylene glycol, 16.3g nickel nitrates are dissolved in 200mL deionized waters, solution C is obtained;Solution C is also added in autoclave, replaced 3 times with hydrogen after sealing, Hydrogen Vapor Pressure is then adjusted to 3MPa, 2h is reacted at 150 DEG C;Treat that reacted solidliquid mixture is down to 25 DEG C in above-mentioned autoclave, 45g absolute ethyl alcohols are added, 1.5h is placed, then filters, gained solid sample is put into baking oven in dry 6h at 110 DEG C, 6h is calcined at 700 DEG C, that is, is made and quality is counted using element is accounted for catalyst percentage composition as 13.7%Ni, 1.9%Zr, 4.4%Mo, 1.1%Co, 1.2%V catalyst, are designated as C-1.
Embodiment 2
From the useless hydrotreating catalyst of fixed bed residual hydrogenation commercial plant(MoCo/Al2O3)The oil removed on catalyst surface is extracted by petroleum ether, in 110 DEG C of dry 8 h, gained catalyst is calcined 4h at 450 DEG C, catalyst precarsor A is obtained, wherein Mo is accounted for catalyst precarsor A weight 5.2wt%, Co in terms of element and catalyst precarsor A weight 1.2wt% is accounted in terms of element, Ni is accounted for catalyst precarsor A weight 1.5wt%, V in terms of element and catalyst precarsor A weight 1.3wt% is accounted in terms of element;20g catalyst precarsors A is activated in the mixed atmosphere of hydrogen, hydrogen volume content is 80% in mixed gas, reducing condition is 450 DEG C, 0.2MPa(Absolute pressure), recovery time 4h;0.99g zirconium nitrates are dissolved in 16mL deionized waters, solution B is obtained, and are well mixed with the mass fraction of its 4 times of quality for 40% furfural aqueous solution, are then added to together with the catalyst precarsor A after reduction activation in autoclave;10g polyethylene glycol, 10.9g nickel nitrates are dissolved in 200mL deionized waters, solution C is obtained;Solution C is also added in autoclave, replaced 3 times with hydrogen after sealing, Hydrogen Vapor Pressure is then adjusted to 3MPa, 2h is reacted at 150 DEG C;Treat that reacted solidliquid mixture is down to 25 DEG C in above-mentioned autoclave, 30g absolute ethyl alcohols are added, 1.5h is placed, then filters, gained solid sample is put into baking oven in dry 6h at 110 DEG C, 6h is calcined at 700 DEG C, that is, is made and quality is counted using element is accounted for catalyst percentage composition as 8.8%Ni, 0.3%Zr, 3.6%Mo, 0.7%Co, 0.8%V catalyst, are designated as C-2.
Embodiment 3
From the useless hydrotreating catalyst of fixed bed residual hydrogenation commercial plant(MoCo/Al2O3)The oil removed on catalyst surface is extracted by petroleum ether, in 110 DEG C of dry 8 h, gained catalyst is calcined 4h at 450 DEG C, catalyst precarsor A is obtained, wherein Mo is accounted for catalyst precarsor A weight 6.1wt%, Co in terms of element and catalyst precarsor A weight 1.8wt% is accounted in terms of element, Ni is accounted for catalyst precarsor A weight 2.3wt%, V in terms of element and catalyst precarsor A weight 1.9wt% is accounted in terms of element;20g catalyst precarsors A is activated in the mixed atmosphere of hydrogen, hydrogen volume content is 80% in mixed gas, reducing condition is 450 DEG C, 0.2MPa(Absolute pressure), recovery time 4h;7.25g zirconium nitrates are dissolved in 20mL deionized waters, solution B is obtained, and are well mixed with the mass fraction of its 4 times of quality for 40% furfural aqueous solution, are then added to together with the catalyst precarsor A after reduction activation in autoclave;21g polyethylene glycol, 22.5g nickel nitrates are dissolved in 200mL deionized waters, solution C is obtained;Solution C is also added in autoclave, replaced 3 times with hydrogen after sealing, Hydrogen Vapor Pressure is then adjusted to 3MPa, 2h is reacted at 150 DEG C;Treat that reacted solidliquid mixture is down to 25 DEG C in above-mentioned autoclave, 62g absolute ethyl alcohols are added, 1.5h is placed, then filters, gained solid sample is put into baking oven in dry 6h at 110 DEG C, 6h is calcined at 700 DEG C, that is, is made and quality is counted using element is accounted for catalyst percentage composition as 17.3%Ni, 5.4%Zr, 4.2%Mo, 1.2%Co, 1.1%V catalyst, are designated as C-3.
Embodiment 4
From the useless hydrotreating catalyst of fixed bed residual hydrogenation commercial plant(MoCo/Al2O3)The oil removed on catalyst surface is extracted by petroleum ether, in 110 DEG C of dry 8 h, gained catalyst is calcined 4h at 450 DEG C, catalyst precarsor A is obtained, wherein Mo is accounted for catalyst precarsor A weight 6.1wt%, Co in terms of element and catalyst precarsor A weight 1.8wt% is accounted in terms of element, Ni is accounted for catalyst precarsor A weight 2.3wt%, V in terms of element and catalyst precarsor A weight 1.9wt% is accounted in terms of element;20g catalyst precarsors A is activated in the mixed atmosphere of hydrogen, hydrogen volume content is 80% in mixed gas, reducing condition is 450 DEG C, 0.2MPa(Absolute pressure), recovery time 4h;1.68g lanthanum nitrates are dissolved in 16mL deionized waters, solution B is obtained, and are well mixed with the mass fraction of its 3 times of quality for 30% furfural aqueous solution, are then added to together with the catalyst precarsor A after reduction activation in autoclave;15g polyethylene glycol, 16.3g nickel nitrates are dissolved in 200mL deionized waters, solution C is obtained;Solution C is also added in autoclave, replaced 3 times with hydrogen after sealing, Hydrogen Vapor Pressure is then adjusted to 3MPa, 2h is reacted at 150 DEG C;Treat that reacted solidliquid mixture is down to 25 DEG C in above-mentioned autoclave, 45g absolute ethyl alcohols are added, 1.5h is placed, then filters, gained solid sample is put into baking oven in dry 6h at 110 DEG C, 6h is calcined at 700 DEG C, that is, is made and quality is counted using element is accounted for catalyst percentage composition as 13.3%Ni, 1.8%La, 4.5%Mo, 1.1%Co, 1.1%V catalyst, are designated as C-4.
Embodiment 5
From the useless hydrotreating catalyst of fixed bed residual hydrogenation commercial plant(MoCo/Al2O3)The oil removed on catalyst surface is extracted by petroleum ether, in 110 DEG C of dry 8 h, gained catalyst is calcined 4h at 450 DEG C, catalyst precarsor A is obtained, wherein Mo is accounted for catalyst precarsor A weight 6.1wt%, Co in terms of element and catalyst precarsor A weight 1.8wt% is accounted in terms of element, Ni is accounted for catalyst precarsor A weight 2.3wt%, V in terms of element and catalyst precarsor A weight 1.9wt% is accounted in terms of element;20g catalyst precarsors A is activated in the mixed atmosphere of hydrogen, hydrogen volume content is 80% in mixed gas, reducing condition is 450 DEG C, 0.2MPa(Absolute pressure), recovery time 4h;1.67g cerous nitrates are dissolved in 16mL deionized waters, solution B is obtained, and are well mixed with the mass fraction of its 5 times of quality for 50% furfural aqueous solution, are then added to together with the catalyst precarsor A after reduction activation in autoclave;15g polyvinyl alcohol, 16.3g nickel nitrates are dissolved in 200mL deionized waters, solution C is obtained;Solution C is also added in autoclave, replaced 3 times with hydrogen after sealing, Hydrogen Vapor Pressure is then adjusted to 3MPa, 2h is reacted at 150 DEG C;Treat that reacted solidliquid mixture is down to 25 DEG C in above-mentioned autoclave, 45g absolute ethyl alcohols are added, 1.5h is placed, then filters, gained solid sample is put into baking oven in dry 6h at 110 DEG C, 6h is calcined at 700 DEG C, that is, is made and quality is counted using element is accounted for catalyst percentage composition as 13.5%Ni, 1.7%Ce, 4.3%Mo, 0.9%Co, 1.0%V catalyst, are designated as C-5.
Embodiment 6
From the useless hydrotreating catalyst of fixed bed residual hydrogenation commercial plant(MoCo/Al2O3)The oil removed on catalyst surface is extracted by petroleum ether, in 110 DEG C of dry 8 h, gained catalyst is calcined 4h at 450 DEG C, catalyst precarsor A is obtained, wherein Mo is accounted for catalyst precarsor A weight 6.1wt%, Co in terms of element and catalyst precarsor A weight 1.8wt% is accounted in terms of element, Ni is accounted for catalyst precarsor A weight 2.3wt%, V in terms of element and catalyst precarsor A weight 1.9wt% is accounted in terms of element;20g catalyst precarsors A is activated in the mixed atmosphere of hydrogen, hydrogen volume content is 80% in mixed gas, reducing condition is 450 DEG C, 0.2MPa(Absolute pressure), recovery time 4h;2.67g cobalt nitrates are dissolved in 16mL deionized waters, solution B is obtained, and are well mixed with the mass fraction of its 4 times of quality for 40% furfural aqueous solution, are then added to together with the catalyst precarsor A after reduction activation in autoclave;15g polyethylene glycol, 16.3g nickel nitrates are dissolved in 200mL deionized waters, solution C is obtained;Solution C is also added in autoclave, replaced 3 times with hydrogen after sealing, Hydrogen Vapor Pressure is then adjusted to 3MPa, 2h is reacted at 150 DEG C;Treat that reacted solidliquid mixture is down to 25 DEG C in above-mentioned autoclave, add the aqueous citric acid solution that 300g mass fractions are 15%, 1.5h is placed, is then filtered, gained solid sample is put into baking oven in dry 6h at 110 DEG C, 6h is calcined at 700 DEG C, it is made and quality is counted using element accounts for catalyst percentage composition as 13.1%Ni, 3.1%Co, 4.5%Mo, 1.1%V catalyst, is designated as C-6.
Embodiment 7
From the useless hydrotreating catalyst of fixed bed residual hydrogenation commercial plant(MoCo/Al2O3)The oil removed on catalyst surface is extracted by petroleum ether, in 110 DEG C of dry 8 h, gained catalyst is calcined 4h at 450 DEG C, catalyst precarsor A is obtained, wherein Mo is accounted for catalyst precarsor A weight 6.1wt%, Co in terms of element and catalyst precarsor A weight 1.8wt% is accounted in terms of element, Ni is accounted for catalyst precarsor A weight 2.3wt%, V in terms of element and catalyst precarsor A weight 1.9wt% is accounted in terms of element;20g catalyst precarsors A is activated in the mixed atmosphere of hydrogen, hydrogen volume content is 80% in mixed gas, reducing condition is 450 DEG C, 0.2MPa(Absolute pressure), recovery time 4h;1.24g ammonium metavanadates are dissolved in 16mL deionized waters, solution B is obtained, and are well mixed with the mass fraction of its 4 times of quality for 40% furfural aqueous solution, are then added to together with the catalyst precarsor A after reduction activation in autoclave;By 15g polyvinylpyrrolidones(k30), 16.3g nickel nitrates be dissolved in 200mL deionized waters, obtain solution C;Solution C is also added in autoclave, replaced 3 times with hydrogen after sealing, Hydrogen Vapor Pressure is then adjusted to 3MPa, 2h is reacted at 150 DEG C;Treat that reacted solidliquid mixture is down to 25 DEG C in above-mentioned autoclave, add the aqueous citric acid solution that 300g mass fractions are 15%, 1.5h is placed, is then filtered, gained solid sample is put into baking oven in dry 6h at 110 DEG C, 6h is calcined at 700 DEG C, it is made and quality is counted using element accounts for catalyst percentage composition as 13.9%Ni, 2.9%V, 4.3%Mo, 1.2%Co catalyst, is designated as C-7.
Comparative example
From the useless hydrotreating catalyst of fixed bed residual hydrogenation commercial plant(MoCo/Al2O3)The oil removed on catalyst surface is extracted by petroleum ether, in 110 DEG C of dry 8 h, gained catalyst is calcined 4h at 450 DEG C, catalyst precarsor A is obtained, wherein Mo is accounted for catalyst precarsor A weight 6.1wt%, Co in terms of element and catalyst precarsor A weight 1.8wt% is accounted in terms of element, Ni is accounted for catalyst precarsor A weight 2.3wt%, V in terms of element and catalyst precarsor A weight 1.9wt% is accounted in terms of element;20g catalyst precarsors A is added in the aqueous solution containing 2.54g zirconium nitrates and 16.3g nickel nitrates, it is evaporated in 80 DEG C of stirring to solution, it is put into baking oven in dry 12h at 110 DEG C, 4h is calcined at 400 DEG C, that is, is made and quality is counted using element is accounted for catalyst percentage composition as 14.3%Ni, 2.1%Zr, 4.6%Mo, 1.3%Co, 1.2%V catalyst, are designated as D-1.
The reactivity worth of the catalyst of table 1
The catalyst activity component Ni content distributions of table 2(wt%)

Claims (16)

1. a kind of preparation method for synthesizing gas by reforming methane with co 2 catalyst, the catalyst includes active component, auxiliary agent and carrier, active component is Ni, and auxiliary agent is the one or more in Zr, La, Ce, Co, Mo or V, and carrier is aluminum oxide;On the basis of each element quality accounts for the percentage of catalyst quality in catalyst, the content of active component is 10wt%~20wt%, and the content of auxiliary agent is 7wt%~15wt%, and surplus is carrier;The preparation method of the catalyst comprises the following steps:
(1)Waste residue oil hydrogenating treatment catalyst is extracted to the oil removed on catalyst surface, after 80~150 DEG C are dried, high-temperature roasting processing is carried out, obtains catalyst precarsor A, wherein, sintering temperature is 300 ~ 600 DEG C, and roasting time is 2~6h;
(2)Using reducing atmosphere to step(1)Obtained catalyst precarsor A carries out reduction treatment;
(3)Auxiliary agent presoma is soluble in water, solution B is obtained, and be well mixed with furfural aqueous solution, then with step(2)Obtained catalyst precarsor A is added in autoclave together;
(4)High molecular weight water soluble polymer, active component presoma is soluble in water, obtain solution C;Solution C is added to step(3)In described autoclave, replaced 2~5 times with hydrogen after sealing, then adjust Hydrogen Vapor Pressure to 2~4MPa, 1~3h is reacted at 100~200 DEG C;
(5)Treat step(4)Obtained solidliquid mixture is down to 20~30 DEG C, adds absolute ethyl alcohol or aqueous citric acid solution, places 1~2h, then filters, gained solid sample after drying, calcination process, obtains catalyst again.
2. in accordance with the method for claim 1, it is characterised in that:Step(1)Described in waste residue oil hydrogenating treatment catalyst using aluminum oxide as carrier, active metal component contain Mo and Co.
3. in accordance with the method for claim 1, it is characterised in that:Step(1)Described in catalyst precarsor A in Mo content be 5wt% ~ 10wt%, Co content is 1wt% ~ 3wt%, and V content is 1wt% ~ 3wt%, and Ni content is 1wt% ~ 5wt%.
4. in accordance with the method for claim 1, it is characterised in that:Step(2)Described in reducing atmosphere be the mixed gas of hydrogen or hydrogen and nitrogen, hydrogen volume percentage composition is 10%~95% in the mixed gas.
5. in accordance with the method for claim 1, it is characterised in that:Step(3)Described in auxiliary agent presoma be one or more in zirconium nitrate, cerous nitrate, lanthanum nitrate, preferably zirconium nitrate.
6. in accordance with the method for claim 1, it is characterised in that:Step(3)Described in solution B, auxiliary agent is in terms of element, and the mass fraction in solution B is 1%~10%.
7. in accordance with the method for claim 1, it is characterised in that:Step(3)Described in furfural aqueous solution the mass fraction of furfural be 30%~50%.
8. in accordance with the method for claim 1, it is characterised in that:Step(3)Described in furfural aqueous solution and the mass ratio of solution B be 3 ~ 5.
9. in accordance with the method for claim 1, it is characterised in that:Step(3)Described in solution B and the gross mass and step of furfural aqueous solution(2)Obtained reduction rear catalyst precursor A mass ratio is 3~6.
10. in accordance with the method for claim 1, it is characterised in that:Step(4)Described in high molecular weight water soluble polymer be polyethylene glycol, polyvinylpyrrolidone, polyvinyl alcohol in one or more.
11. in accordance with the method for claim 1, it is characterised in that:Step(4)Described in active component presoma be one or more in nickel nitrate, nickel acetate, nickel sulfate, nickel chloride, preferably nickel nitrate.
12. in accordance with the method for claim 1, it is characterised in that:Step(4)Described in solution C, in active component presoma it is nickeliferous mass fraction in solution C is counted as 0.5%~3% using element, mass fraction of the high molecular weight water soluble polymer in solution C is 3~6 times of Ni element mass fractions.
13. in accordance with the method for claim 1, it is characterised in that:Step(5)Described in add the quality of absolute ethyl alcohol or citric acid and the mass ratio of high molecular weight water soluble polymer be 2 ~ 4.
14. in accordance with the method for claim 1, it is characterised in that:Step(5)Described in aqueous citric acid solution mass fraction be 10%~20%.
15. in accordance with the method for claim 1, it is characterised in that:Step(5)Described in drying temperature be 70~150 DEG C, preferably 80~120 DEG C, drying time be 2~12h, preferably 4~8h.
16. in accordance with the method for claim 1, it is characterised in that:Step(5)Described in sintering temperature be 350~650 DEG C, preferably 400~600 DEG C, roasting time be 2~12h, preferably 4~8h.
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