CN102974353B - NiO/gamma-Al2O3 catalyst of methane and carbon dioxide reforming synthesis gas and method for preparing NiO/gamma-Al2O3 catalyst of methane and carbon dioxide reforming synthesis gas - Google Patents
NiO/gamma-Al2O3 catalyst of methane and carbon dioxide reforming synthesis gas and method for preparing NiO/gamma-Al2O3 catalyst of methane and carbon dioxide reforming synthesis gas Download PDFInfo
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- CN102974353B CN102974353B CN201210522423.0A CN201210522423A CN102974353B CN 102974353 B CN102974353 B CN 102974353B CN 201210522423 A CN201210522423 A CN 201210522423A CN 102974353 B CN102974353 B CN 102974353B
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- 239000003054 catalyst Substances 0.000 title claims abstract description 62
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 58
- 238000002407 reforming Methods 0.000 title claims abstract description 21
- 229910003158 γ-Al2O3 Inorganic materials 0.000 title claims abstract 16
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title abstract description 34
- 229910002092 carbon dioxide Inorganic materials 0.000 title abstract description 17
- 239000001569 carbon dioxide Substances 0.000 title abstract description 17
- 238000000034 method Methods 0.000 title abstract description 17
- 230000015572 biosynthetic process Effects 0.000 title abstract description 8
- 238000003786 synthesis reaction Methods 0.000 title abstract description 8
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000000084 colloidal system Substances 0.000 claims description 24
- 239000000243 solution Substances 0.000 claims description 18
- 238000002360 preparation method Methods 0.000 claims description 17
- SPIFDSWFDKNERT-UHFFFAOYSA-N nickel;hydrate Chemical compound O.[Ni] SPIFDSWFDKNERT-UHFFFAOYSA-N 0.000 claims description 16
- 230000002194 synthesizing effect Effects 0.000 claims description 13
- 238000000227 grinding Methods 0.000 claims description 12
- 239000007787 solid Substances 0.000 claims description 12
- 239000000725 suspension Substances 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 6
- 239000008367 deionised water Substances 0.000 claims description 6
- 229910021641 deionized water Inorganic materials 0.000 claims description 6
- 239000011259 mixed solution Substances 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 6
- KBJMLQFLOWQJNF-UHFFFAOYSA-N nickel(ii) nitrate Chemical compound [Ni+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O KBJMLQFLOWQJNF-UHFFFAOYSA-N 0.000 claims description 6
- 230000003068 static effect Effects 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims 2
- 238000006243 chemical reaction Methods 0.000 abstract description 25
- 239000007789 gas Substances 0.000 abstract description 14
- 229910052739 hydrogen Inorganic materials 0.000 abstract description 3
- 239000001257 hydrogen Substances 0.000 abstract description 3
- 125000004435 hydrogen atom Chemical class [H]* 0.000 abstract description 2
- 230000008569 process Effects 0.000 abstract description 2
- 238000007796 conventional method Methods 0.000 abstract 1
- AOPCKOPZYFFEDA-UHFFFAOYSA-N nickel(2+);dinitrate;hexahydrate Chemical compound O.O.O.O.O.O.[Ni+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O AOPCKOPZYFFEDA-UHFFFAOYSA-N 0.000 abstract 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 8
- 239000006185 dispersion Substances 0.000 description 6
- 230000003197 catalytic effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000005470 impregnation Methods 0.000 description 5
- 239000012495 reaction gas Substances 0.000 description 5
- KDRIEERWEFJUSB-UHFFFAOYSA-N carbon dioxide;methane Chemical compound C.O=C=O KDRIEERWEFJUSB-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000000571 coke Substances 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 125000004429 atom Chemical group 0.000 description 2
- 239000012752 auxiliary agent Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 229910052684 Cerium Inorganic materials 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 210000000481 breast Anatomy 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical group [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 238000010835 comparative analysis Methods 0.000 description 1
- 239000012050 conventional carrier Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000002779 inactivation Effects 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 229910052622 kaolinite Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 238000006057 reforming reaction Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- 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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- Catalysts (AREA)
- Hydrogen, Water And Hydrids (AREA)
Abstract
The invention relates to the technical field of catalysts of a synthesis gas which is obtained through reforming methane and carbon dioxide, and in particular relates to a NiO/gamma-Al2O3 catalyst of a methane and carbon dioxide reforming synthesis gas and a method for preparing the NiO/gamma-Al2O3 catalyst of the methane and carbon dioxide reforming synthesis gas. The NiO/gamma-Al2O3 catalyst of the methane and carbon dioxide reforming synthesis gas is prepared through the following step that: step 1, 8-9 parts of nickel nitrate hexahydrate and 10 parts of gamma-aluminium oxide are respectively weighed by weight. Compared with a conventional method for producing a NiO/gamma-Al2O3 catalyst, the method has a simple and convenient operating process, the NiO/gamma-Al2O3 catalyst which is produced through adopting the method has the characteristics of high methane conversion rate, high hydrogen selectivity and long service life of the catalyst; and moreover, the produced NiO/gamma-Al2O3 catalyst is low in use cost and has good economy.
Description
Technical field
The present invention relates to the catalyst technical field that methane carbon dioxide reformation obtains synthesis gas, is a kind of NiO/ γ-Al of synthesizing gas by reforming methane with co 2
2o
3catalysts and its preparation method.
Background technology
Carbon dioxide is one of main gas producing greenhouse effects.How the poverty-stricken situation that faces global warming, make its recycling, more and more becomes one of hot issue that the mankind pay close attention to the most.Utilize methane carbon dioxide reformation technology; prepare synthesis gas (mixture of carbon monoxide and hydrogen); then by F-T, synthesize; prepare oxygenatedchemicals or liquid fuel; for alleviating energy crisis; low-carbon emission reduction, utilization of waste as resource, to progressively realizing human society, to enter mode of sustainable development significant.
Having under catalyst condition, carbon dioxide conversion can reach more than 80%; Under catalyst-free condition, carbon dioxide and methane reaction, its conversion ratio is almost nil.
Conventional impregnation is to prepare at present one of the most frequently used method of methane carbon dioxide reformation catalyst.
" the CO that one of document < < SCI > > 2002.Vo1.23. № 1.92～97 is delivered by Wei Junmei, Xu Baiqing, Li Jinlu, Cheng Zhenxing, Wang Yaquan, Zhu Qiming
2reformation CH
4nanometer ZrO
2the research of supported ni catalyst (1)---with the comparison of Ni catalyst on conventional carrier " literary composition, it adopts conventional impregnation to prepare methane carbon dioxide reformation catalyst.Life experiment after reaction 100h shows, Ni/ γ-Al
2o
3catalyst shows poor catalytic activity.
" the CeO that two < < catalysis journal > > 2003.Vol.28. № 2.19～22 of document are delivered by Jin Mingshan, rope palm bosom, Xu Xiufeng, strange generation
2to supporting the CH of Ni catalyst
4with CO
2the impact of reforming reaction activity " literary composition, it has investigated support type Ni catalyst prepared by the conventional impregnation catalytic activity in methane reforming with carbon dioxide.Life experiment result after reaction 40h shows, Ni/CeO
2/ Al
2o
3catalyst not only has very high methane and carbon dioxide conversion is active, and demonstrates good anti-Coking Behavior.
" the Ni/ZrO that three < < Chemical Engineering Technologies of document and exploitation > > 2008. Vol.37. № 3.1～4 are delivered by Li Ning, Wang Peng, Wang Qiang
2/ A1
20
3catalyst is at CO
2reformation CH
4catalytic performance research in reaction " literary composition, it adopts vacuum impregnation technology to investigate support type Ni/ γ-Al
2o
3the catalytic activity of catalyst in methane reforming with carbon dioxide.Life experiment after reaction 100h shows, Ni/ γ-Al
2o
3catalyst shows poor catalytic activity.
So far, though there are some drawbacks in a kind of method of commonly using, proving effective that conventional impregnation is still prepared for catalyst, as low, the poor activity of catalyst life of preparation etc.
Summary of the invention
The invention provides a kind of NiO/ γ-Al of synthesizing gas by reforming methane with co 2
2o
3catalysts and its preparation method, has overcome the deficiency of above-mentioned prior art, and it can effectively solve the problem of low, poor activity of existing life-span.
One of technical scheme of the present invention realizes by following measures: a kind of NiO/ γ-Al of synthesizing gas by reforming methane with co 2
2o
3catalyst obtains in the steps below:
The first step, score another name is got 8 parts to 9 parts of six water nickel nitrates, 10 parts of gama-aluminas by weight;
Second step, configuration mixed solution: the six water nickel nitrates that take in upper step are mixed with to solution by deionized water; In this solution, the concentration of nickel nitrate is 0.5 mole and often rises to 1 mole every liter;
The 3rd step preparation: first, add gama-alumina in solution, keep 5 minutes to 10 minutes, then pour in the lump colloid mill into; Secondly, the gap adjustment to 0.01 between colloid mill movable grinding disc and static cutting disk millimeter, to 0.3 millimeter, and is passed into cooling circulating water to colloid mill; Finally, start colloid mill, make suspension circular grinding in mill after 1 hour to 3 hours, take out suspension, oven dry, roasting, obtain pulverulent solids, and pulverulent solids compressing tablet was sieved to 40 order to 60 mesh sieves, obtains the NiO/ γ-Al of moulding
2o
3catalyst.
Two of technical scheme of the present invention realizes by following measures: a kind of NiO/ γ-Al of synthesizing gas by reforming methane with co 2
2o
3the preparation method of catalyst carries out in the steps below: the first step, and score another name is got 8 parts to 9 parts of six water nickel nitrates, 10 parts of gama-aluminas by weight;
Second step, configuration mixed solution: the six water nickel nitrates that take in upper step are mixed with to solution by deionized water; In this solution, the concentration of nickel nitrate is 0.5 mole and often rises to 1 mole every liter;
The 3rd step preparation: first, add gama-alumina in solution, keep 5 minutes to 10 minutes, then pour in the lump colloid mill into; Secondly, the gap adjustment to 0.01 between colloid mill movable grinding disc and static cutting disk millimeter, to 0.3 millimeter, and is passed into cooling circulating water to colloid mill; Finally, start colloid mill, make suspension circular grinding in mill after 1 hour to 3 hours, take out suspension, oven dry, roasting, obtain pulverulent solids, and pulverulent solids compressing tablet was sieved to 40 order to 60 mesh sieves, obtains the NiO/ γ-Al of moulding
2o
3catalyst.
The further optimization and/or improvements to foregoing invention technical scheme below:
In the above-mentioned first step, the another name of can scoring is by weight got 8.724 parts of six water nickel nitrates, 10 parts of gama-aluminas.
The condition of above-mentioned oven dry is: it is 3 hours to 5 hours that temperature can be 100 ℃ to 120 ℃, time.
The condition of above-mentioned roasting is: it is 3 hours to 5 hours that temperature can be 500 ℃ to 800 ℃, time.
The inventive method is with existing production NiO/ γ-Al
2o
3the method of catalyst is compared, and has operating process simply and easily, the NiO/ γ-Al that adopts the inventive method to produce
2o
3catalyst has the advantages that methane conversion is high, hydrogen selective is high, catalyst life is long, and the NiO/ γ-Al of the present invention's production
2o
3cost is low in use, economy is better for catalyst.
The specific embodiment
The present invention is not subject to the restriction of following embodiment, can determine concrete embodiment according to technical scheme of the present invention and actual conditions.Percentage in the present invention is mass percent.
Below in conjunction with embodiment, the invention will be further described:
Embodiment 1, the NiO/ γ-Al of this synthesizing gas by reforming methane with co 2
2o
3the preparation of catalyst is carried out in the steps below: the first step, and score another name is got 8 parts to 9 parts of six water nickel nitrates, 10 parts of gama-aluminas by weight;
Second step, configuration mixed solution: the six water nickel nitrates that take in upper step are mixed with to solution by deionized water; In this solution, the concentration of nickel nitrate is 0.5 mole and often rises to 1 mole every liter;
The 3rd step preparation: first, add gama-alumina in solution, keep 5 minutes to 10 minutes, then pour in the lump colloid mill into; Secondly, the gap adjustment to 0.01 between colloid mill movable grinding disc and static cutting disk millimeter, to 0.3 millimeter, and is passed into cooling circulating water to colloid mill; Finally, start colloid mill, make suspension circular grinding in mill after 1 hour to 3 hours, take out suspension, oven dry, roasting, obtain pulverulent solids, and pulverulent solids compressing tablet was sieved to 40 order to 60 mesh sieves, obtains the NiO/ γ-Al of moulding
2o
3catalyst.
Embodiment 2, the NiO/ γ-Al of this synthesizing gas by reforming methane with co 2
2o
3the preparation of catalyst is carried out in the steps below: the first step, and score another name is got 8 parts of six water nickel nitrates or 9 parts, 10 parts of gama-aluminas by weight;
Second step, configuration mixed solution: the six water nickel nitrates that take in upper step are mixed with to solution by deionized water; In this solution, the concentration of nickel nitrate is 0.5 mole every liter or 1 mole every liter;
The 3rd step preparation: first, add gama-alumina in solution, keep 5 minutes or 10 minutes, then pour in the lump colloid mill into; Secondly, by the gap adjustment to 0.01 between colloid mill movable grinding disc and static cutting disk millimeter or 0.3 millimeter, and pass into cooling circulating water to colloid mill; Finally, start colloid mill, make suspension circular grinding in mill after 1 hour or 3 hours, take out suspension, oven dry, roasting, obtain pulverulent solids, and pulverulent solids compressing tablet was sieved to 40 orders or 60 mesh sieves, obtains the NiO/ γ-Al of moulding
2o
3catalyst.
Embodiment 3, as above-described embodiment preferably, in the first step, score another name is got 8.724 parts of six water nickel nitrates, 10 parts of gama-aluminas by weight.
Embodiment 4, as above-described embodiment preferably, the condition of oven dry is: temperature is that 100 ℃ to 120 ℃, time are 3 hours to 5 hours.
Embodiment 5, as above-described embodiment preferably, the condition of roasting is: temperature is that 500 ℃ to 800 ℃, time are 3 hours to 5 hours.
To above-described embodiment gained NiO/ γ-Al
2o
3catalyst is tested:
One. the comparison of catalytic action effect:
At above-mentioned NiO/ γ-Al
2o
3after catalyst reduction process finishes, switch to reaction gas, reaction, wherein reaction gas CO at 750 ℃ to 850 ℃
2/ CH
4=1 to 1.5(volume ratio), GHSV=1500 to 6000ml/hgCat.; After reaction finishes, question response pipe is cooled to room temperature, takes out catalyst.
The average result of testing is as follows: methane conversion reaches 90% to 100%, and carbon dioxide conversion reaches 80% to 90%, is selectively 90% to 99%, and coke deposit rate≤19.5mg/gCath reacts nearly 100 hours not inactivations.
The evaluation experimental that catalyst in one of document is done at 800 ℃ is: at reaction gas CO
2/ CH
4=1(volume ratio) under condition, after reaction 100 h, CH
4conversion ratio by 75.7%, be down to 45.3%;
Document two in the evaluation experimental done at 750 ℃ of catalyst be: at reaction gas CO
2/ CH
4=1(volume ratio), under GHSV=6000 ml/hgCat. condition, in reaction time 40h, keep methane conversion 96%, carbon dioxide conversion 86%, coke deposit rate is 2.4mg/gCath.
Document three in the evaluation experimental done at 750 ℃ of catalyst be: at reaction gas CO
2/ CH
4=1(volume ratio), under 650 ℃ to 850 ℃ of reaction temperatures, normal pressure, in reaction time 100h, carbon dioxide conversion is down to 30.2% from 70%.
The present invention with the comparative analysis of prior art is: compare with one of document, methane conversion is greatly improved; Compare with two of document, although methane and carbon dioxide conversion ratio of the present invention is more or less the same, coke deposit rate is larger, and the life-span is enhanced; In addition, the present invention does not add auxiliary agent, and two auxiliary agent of document is cerium (Ce) (more expensive), and this also shows, cost of the present invention is low, economy is better; Compare with three of document, carbon dioxide conversion has had and has increased substantially.
Two. various catalyst disperse the comparison of thresholding:
Disperse thresholding also to express the distribution situation of active component in carrier, this value is larger, also just explanation, and active component is filled more fully in the place that can fill atom of carrier inside.
NiO/ γ-the Al preparing by the inventive method
2o
3catalyst, NiO is at γ-Al
2o
3lip-deep dispersion thresholding is 0.102gNiO/100m
2γ-Al
2o
3, approach the theoretical thresholding 0.122gNiO/100m2 γ-Al that disperses
2o
3;
According to the prepared NiO/ γ-Al of the method for document one
2o
3the dispersion thresholding of catalyst is respectively 0.042gNiO/100m
2γ-Al
2o
3;
According to the prepared NiO/ γ-Al of the method for document two
2o
3the dispersion thresholding of catalyst is respectively 0.075gNiO/100m
2γ-Al
2o
3;
According to the prepared NiO/ γ-Al of the method for document three
2o
3the dispersion thresholding of catalyst is respectively 0.036gNiO/100m
2γ-Al
2o
3.
NiO/ γ-Al that document one, two, three is prepared
2o
3the dispersion thresholding of catalyst is all lower than the dispersion thresholding of this method Kaolinite Preparation of Catalyst, the active component that this method is described is filled very fully in the place that can fill atom of carrier inside, this to a certain extent, than the prepared NiO/ γ-Al of document one, two, three
2o
3the specific area of the active component of catalyst also increases, and also can improve the conversion ratio of each material of reaction when catalyst action.
Claims (6)
1. the NiO/ of synthesizing gas by reforming methane with co 2 γ-Al2O3 catalyst, is characterized in that obtaining in the steps below: the first step, and score another name is got 8 parts to 9 parts of six water nickel nitrates, 10 parts of gama-aluminas by weight;
Second step, configuration mixed solution: the six water nickel nitrates that take in upper step are mixed with to solution by deionized water; In this solution, the concentration of nickel nitrate is 0.5 mole and often rises to 1 mole every liter;
The 3rd step preparation: first, add gama-alumina in solution, keep 5 minutes to 10 minutes, then pour in the lump colloid mill into; Secondly, the gap adjustment to 0.01 between colloid mill movable grinding disc and static cutting disk millimeter, to 0.3 millimeter, and is passed into cooling circulating water to colloid mill; Finally, start colloid mill, make suspension circular grinding in mill after 1 hour to 3 hours, take out suspension, oven dry, roasting, obtain pulverulent solids, and pulverulent solids compressing tablet was sieved to 40 order to 60 mesh sieves, obtains NiO/ γ-Al2O3 catalyst of moulding; Wherein: in the first step, score another name is got 8.724 parts of six water nickel nitrates, 10 parts of gama-aluminas by weight.
2. the NiO/ of synthesizing gas by reforming methane with co 2 according to claim 1 γ-Al2O3 catalyst, is characterized in that the condition of drying is: temperature is that 100 ℃ to 120 ℃, time are 3 hours to 5 hours.
3. the NiO/ of synthesizing gas by reforming methane with co 2 according to claim 1 and 2 γ-Al2O3 catalyst, is characterized in that the condition of roasting is: temperature is that 500 ℃ to 800 ℃, time are 3 hours to 5 hours.
4. a preparation method for the NiO/ of synthesizing gas by reforming methane with co 2 γ-Al2O3 catalyst, is characterized in that carrying out in the steps below: the first step, and score another name is got 8 parts to 9 parts of six water nickel nitrates, 10 parts of gama-aluminas by weight;
Second step, configuration mixed solution: the six water nickel nitrates that take in upper step are mixed with to solution by deionized water; In this solution, the concentration of nickel nitrate is 0.5 mole and often rises to 1 mole every liter;
The 3rd step preparation: first, add gama-alumina in solution, keep 5 minutes to 10 minutes, then pour in the lump colloid mill into; Secondly, the gap adjustment to 0.01 between colloid mill movable grinding disc and static cutting disk millimeter, to 0.3 millimeter, and is passed into cooling circulating water to colloid mill; Finally, start colloid mill, make suspension circular grinding in mill after 1 hour to 3 hours, take out suspension, oven dry, roasting, obtain pulverulent solids, and pulverulent solids compressing tablet was sieved to 40 order to 60 mesh sieves, obtains NiO/ γ-Al2O3 catalyst of moulding; Wherein: in the first step, score another name is got 8.724 parts of six water nickel nitrates, 10 parts of gama-aluminas by weight.
5. the preparation method of the NiO/ of synthesizing gas by reforming methane with co 2 according to claim 4 γ-Al2O3 catalyst, is characterized in that the condition of drying is: temperature is that 100 ℃ to 120 ℃, time are 3 hours to 5 hours.
6. according to the preparation method of NiO/ γ-Al2O3 catalyst of the synthesizing gas by reforming methane with co 2 described in claim 4 or 5, it is characterized in that the condition of roasting is: temperature is that 500 ℃ to 800 ℃, time are 3 hours to 5 hours.
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| 《助剂MgO、CaO对甲烷水蒸气重整Ni/γ-Al2O3催化性能的影响》;赵云莉等;《燃料化学学报》;20100415;第38卷(第2期);第219页的"1、实验部分" * |
| 王世宏，等.《新型胶体磨的研制与应用》.《化工机械》.2000,第27卷(第3期),155-157. * |
| 赵云莉，等.《ni/r-AL2O3催化剂上甲烷水蒸汽重整制合成气》.《应用化工》.2009,第38卷(第2期),第158页. * |
| 赵云莉等.《助剂MgO、CaO对甲烷水蒸气重整Ni/γ-Al2O3催化性能的影响》.《燃料化学学报》.2010,第38卷(第2期),第219页的"1、实验部分". * |
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