CN104190425B - A kind of catalyzer for synthesizing gas by reforming methane with co 2 - Google Patents
A kind of catalyzer for synthesizing gas by reforming methane with co 2 Download PDFInfo
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- CN104190425B CN104190425B CN201410438192.4A CN201410438192A CN104190425B CN 104190425 B CN104190425 B CN 104190425B CN 201410438192 A CN201410438192 A CN 201410438192A CN 104190425 B CN104190425 B CN 104190425B
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- polynite
- nickel cobalt
- reforming methane
- synthesizing gas
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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
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
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Abstract
The invention belongs to the catalyst technical field for synthesizing gas by reforming methane with co 2, it is specifically related to a kind of catalyzer for synthesizing gas by reforming methane with co 2. This catalyzer take polynite as carrier, taking nickel cobalt as active ingredient. It is an advantage of the current invention that: 1) catalyzer of the present invention selects polynite as carrier, polynite is through the slotting layer of alkyl quaternary ammonium salts, nickel oxide, cobalt oxide are disperseed better, it is to increase the anti-carbon deposition ability of catalyzer in polynite surface energy, extending catalyst work-ing life. 2) the present invention adopts nickel cobalt complex, active component nickel cobalt spread loads can be made to obtain more abundant, it is to increase the catalytic performance of catalyzer.
Description
Technical field
The invention belongs to the catalyst technical field for synthesizing gas by reforming methane with co 2, it is specifically related to a kind of catalyzer for synthesizing gas by reforming methane with co 2.
Background technology
Synthesizing gas by reforming methane with co 2 (DRM) provides comprehensive utilization carbon source, a hydrogen source, transforms two kinds of difficult activated micromoleculars simultaneously, and eliminates the technological line of two kinds of main greenhouse gas, has the multiple researching value of economy, environmental protection, science.
The synthetic gas (hydrogen and carbon monoxide) that methane reforming with carbon dioxide produces is the desirable feedstock that F-T synthesis prepares the liquid fuel such as diesel oil, paraffin, is also the important source material preparing methyl alcohol and dme. Methane carbon dioxide reformation process is specially adapted to rich carbonated natural-gas field simultaneously, decreases the expense that separating carbon dioxide brings.
Taking Pt, Pd as the precious metal of representative with taking Ni, Co as methane reforming with carbon dioxide is had activity by the VII metalloid of representative, but because of the precious metals such as Pt, Pd expensive.
Summary of the invention
The present invention is directed to and the prior art of synthesizing gas by reforming methane with co 2 exists the expensive problem of precious metal and a kind of catalyzer for synthesizing gas by reforming methane with co 2 is provided.
The technical scheme realizing the object of the invention is: a kind of catalyzer for synthesizing gas by reforming methane with co 2, take polynite as carrier, taking nickel cobalt as active ingredient, and obtained nickel cobalt/montmorillonite catalyst.
Described nickel cobalt/montmorillonite catalyst, is obtained by following concrete steps:
1) take nickelous nitrate, the Jing Ti/Bao Pian COBALT NITRATE CRYSTALS/FLAKES of analytical pure, and it is dissolved in alcohol solvent and forms nickel cobalt clear solution;
2) add citric acid or oxalic acid, stir, leave standstill;
3) organo montmorillonite is joined step 2) in the solution of gained, stir evenly;
4) dry under water bath condition, it is transferred in baking oven dry;
5) put into retort furnace and carry out high-temperature roasting, be i.e. obtained nickel cobalt/montmorillonite catalyst.
Further, nickelous nitrate described in step 1) and the mass ratio 1:5 of ethanol, the mass ratio of Jing Ti/Bao Pian COBALT NITRATE CRYSTALS/FLAKES and nickelous nitrate is 1:(1��3).
Wherein, the mol ratio of citric acid described in step 3) or oxalic acid and nickelous nitrate is 1:1.
Wherein, the roasting condition of step 5) is: maturing temperature 350 DEG C��500 DEG C, roasting time 2��4 hours.
Further, polynite of the present invention is obtained by following treatment step: be scattered in DMF solvent by polynite, when high-speed stirring, add palmityl trimethyl ammonium chloride, stir under 80 DEG C of constant temperatures, by product deionized water wash and take out filter, 120 DEG C of dryings, last grind into powder.
Wherein, the mass ratio of polynite and DMF solvent is 1:(5��15), the mass ratio of polynite and palmityl trimethyl ammonium chloride is 1:(0.2��0.6).
It is an advantage of the current invention that: 1) catalyzer of the present invention selects polynite as carrier, polynite is through the slotting layer of alkyl quaternary ammonium salts, nickel oxide, cobalt oxide are disperseed better, it is to increase the anti-carbon deposition ability of catalyzer in polynite surface energy, extending catalyst work-ing life. 2) the present invention adopts nickel cobalt complex, active component nickel cobalt spread loads can be made to obtain more abundant, it is to increase the catalytic performance of catalyzer.
Embodiment
Below in conjunction with embodiment the present invention done and describe further.
A kind of catalyzer for synthesizing gas by reforming methane with co 2 of the present invention, this catalyzer take polynite as carrier, taking nickel cobalt as active ingredient, specifically obtains by following concrete steps:
1) take nickelous nitrate, the Jing Ti/Bao Pian COBALT NITRATE CRYSTALS/FLAKES of analytical pure, and it is dissolved in alcohol solvent and forms nickel cobalt clear solution;
2) add citric acid or oxalic acid, stir, leave standstill;
3) organo montmorillonite is joined step 2) in the solution of gained, stir evenly;
4) dry under water bath condition, it is transferred in baking oven dry;
5) put into retort furnace and carry out high-temperature roasting, be i.e. obtained nickel cobalt/montmorillonite catalyst.
Polynite of the present invention obtains through following treatment step: be scattered in DMF solvent by polynite, when high-speed stirring, add palmityl trimethyl ammonium chloride, stir under 80 DEG C of constant temperatures, by product deionized water wash and take out filter, 120 DEG C of dryings, last grind into powder.
Embodiment 1
1) modification of polynite
10 grams of polynites are scattered in 50 grams of DMF solvent, when high-speed stirring, add 2 grams of palmityl trimethyl ammonium chlorides, stir under 80 DEG C of constant temperatures, by product deionized water wash and take out filter, 120 DEG C of dryings, last grind into powder.
2) preparation of nickel cobalt/polynite
Take 10 grams of nickelous nitrates, 10 grams of Jing Ti/Bao Pian COBALT NITRATE CRYSTALS/FLAKESs of analytical pure, and it is dissolved in 50 grams of alcohol solvents and forms nickel cobalt clear solution; Add 4.4 grams of citric acids, stir, leave standstill; Add the polynite that step 1) is obtained, stir evenly; Dry under water bath condition, it is transferred in baking oven dry; Then put into retort furnace and carry out high-temperature roasting, maturing temperature 350 DEG C, roasting time 4 hours, be i.e. obtained nickel cobalt/montmorillonite catalyst.
Embodiment 2
1) modification of polynite
10 grams of polynites are scattered in 100 grams of DMF solvent, when high-speed stirring, add 4 grams of palmityl trimethyl ammonium chlorides, stir under 80 DEG C of constant temperatures, by product deionized water wash and take out filter, 120 DEG C of dryings, last grind into powder.
2) preparation of nickel cobalt/polynite
Take 20 grams of nickelous nitrates, 4 grams of Jing Ti/Bao Pian COBALT NITRATE CRYSTALS/FLAKESs of analytical pure, and it is dissolved in 100 grams of alcohol solvents and forms nickel cobalt clear solution; Add 8.8 grams of citric acids, stir, leave standstill; Add the polynite that step 1) is obtained, stir evenly;Dry under water bath condition, it is transferred in baking oven dry; Then put into retort furnace and carry out high-temperature roasting, maturing temperature 400 DEG C, roasting time 3 hours, be i.e. obtained nickel cobalt/montmorillonite catalyst.
Embodiment 3
1) modification of polynite
10 grams of polynites are scattered in 150 grams of DMF solvent, when high-speed stirring, add 6 grams of palmityl trimethyl ammonium chlorides, stir under 80 DEG C of constant temperatures, by product deionized water wash and take out filter, 120 DEG C of dryings, last grind into powder.
2) preparation of nickel cobalt/polynite
Take 30 grams of nickelous nitrates, 10 grams of Jing Ti/Bao Pian COBALT NITRATE CRYSTALS/FLAKESs of analytical pure, and it is dissolved in 150 grams of alcohol solvents and forms nickel cobalt clear solution; Add 9.3 grams of oxalic acid, stir, leave standstill; Add the polynite that step 1) is obtained, stir evenly; Dry under water bath condition, it is transferred in baking oven dry; Then put into retort furnace and carry out high-temperature roasting, maturing temperature 500 DEG C, roasting time 2 hours, be i.e. obtained nickel cobalt/montmorillonite catalyst.
Claims (5)
1. the catalyzer for synthesizing gas by reforming methane with co 2, this catalyzer take polynite as carrier, taking nickel cobalt as active ingredient, and obtained nickel cobalt/montmorillonite catalyst, it is characterized in that: described nickel cobalt/montmorillonite catalyst, is obtained by following concrete steps:
Step 1) takes nickelous nitrate, the Jing Ti/Bao Pian COBALT NITRATE CRYSTALS/FLAKES of analytical pure, and is dissolved in alcohol solvent and forms nickel cobalt clear solution;
Step 2) add citric acid or oxalic acid, stir, leave standstill;
Organo montmorillonite is joined step 2 by step 3)) in the solution of gained, stir evenly;
Step 4) is dried under water bath condition, is transferred in baking oven dry;
Step 5) is put into retort furnace and is carried out high-temperature roasting, i.e. obtained nickel cobalt/montmorillonite catalyst;
Wherein, nickelous nitrate described in step 1) and the mass ratio 1:5 of ethanol, the mass ratio of Jing Ti/Bao Pian COBALT NITRATE CRYSTALS/FLAKES and nickelous nitrate is 1:(1��3).
2. as claimed in claim 1 for the catalyzer of synthesizing gas by reforming methane with co 2, it is characterised in that: step 2) described in citric acid or the mol ratio of oxalic acid and nickelous nitrate be 1:1.
3. as claimed in claim 1 for the catalyzer of synthesizing gas by reforming methane with co 2, it is characterised in that: the roasting condition of step 5) is: maturing temperature 350 DEG C��500 DEG C, roasting time 2��4 hours.
4. as claimed in claim 1 for the catalyzer of synthesizing gas by reforming methane with co 2, it is characterized in that: described organo montmorillonite is obtained by following step: polynite is scattered in DMF solvent, when high-speed stirring, add palmityl trimethyl ammonium chloride, stir under 80 DEG C of constant temperatures, by product deionized water wash and take out filter, 120 DEG C of dryings, last grind into powder.
5. as claimed in claim 4 for the catalyzer of synthesizing gas by reforming methane with co 2, it is characterized in that: the mass ratio of polynite and DMF solvent is 1:(5��15), the mass ratio of polynite and palmityl trimethyl ammonium chloride is 1:(0.2��0.6).
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| CN201410438192.4A CN104190425B (en) | 2014-09-01 | 2014-09-01 | A kind of catalyzer for synthesizing gas by reforming methane with co 2 |
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| CN108371952A (en) * | 2018-02-28 | 2018-08-07 | 西京学院 | A kind of method that coordination-infusion process prepares methane-CO 2 reformation nickel-base catalyst |
| CN110665543A (en) * | 2019-11-07 | 2020-01-10 | 西安石油大学 | Metal-clay composite catalyst for high-temperature viscosity reduction of thick oil and preparation method thereof |
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| CN102266768B (en) * | 2010-07-29 | 2012-12-26 | 西南化工研究设计院有限公司 | Catalyst with functions of methane catalytic combustion and conversion, and preparation method thereof |
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