CN109908896A - A kind of Cu/ activated clays catalyst of efficient catalytic furfural furfuryl alcohol and preparation method thereof - Google Patents
A kind of Cu/ activated clays catalyst of efficient catalytic furfural furfuryl alcohol and preparation method thereof Download PDFInfo
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Abstract
The present invention specifically provides a kind of preparation method of the Cu/ activated clays catalyst of efficient catalytic Furfural hydrogenation to furfural alcohol, this method is using common clay as raw material, sodium hydroxide is used to activate as activator to it, then copper nitrate is impregnated on activated clays using the method for incipient impregnation, Cu/ activated clays catalyst is obtained after drying, calcining reduction.This preparation method raw material provided by the invention is cheap and easy to get, and synthetic method is simple, provides a kind of new approaches for the preparation of Furfural hydrogenation to furfural alcohol catalyst.And the better performances that test result shows the Cu/ activated clays catalyst of preparation are analyzed, has a extensive future, there is good commercial value.
Description
Technical field
The present invention relates to a kind of preparation methods of furfuraldehyde hydrogenation catalyst, more particularly to one kind to be used for furfural highly effective hydrogenation system
The preparation method of the catalyst of standby furfuryl alcohol, belongs to field of catalyst preparation.
Background technique
Furfuryl alcohol is the important intermediate in fine chemistry and polymer industry, mainly for the production of liquid resin, pesticide, tool
Having constant temperature resin and synthetic lysine, vitamin C, lubricant of acid and alkali resistance and certain solution chemistries etc., other are fine
Chemicals.Furfuryl alcohol is mainly derived from the deep processing of furfural, is the product that aldehyde radical adds hydrogen to obtain in furfural.
Currently used hydrogenation catalyst is generally made of active material and carrier.Noble metal, as Pt, Pd or Ru base are catalyzed
Agent has preferable activity to furfural hydrogenation, but noble metal-based catalysts are expensive, limits their answering in the industry
With.Magnesium-yttrium-transition metal, as Ni, Co, Cu base catalyst also have preferable activity, and the comparatively expensive Metal Substrate of price to furfural hydrogenation
Catalyst is lower, wherein the cheapest with the price of Cu base catalyst, and copper to furfural be selectively converted to furfuryl alcohol have compared with
High activity.Currently used catalyst carrier has very much, generally some biggish materials of specific surface area, such as artificial synthesized
Meso-porous alumina, nickel oxide, zirconium oxide, SBA-15 ordered meso-porous silicon oxide, FUD-12 molecular sieve, KIT-16 molecular sieve etc., this
A little carrier preparations are more difficult, and production cost is higher, is unfavorable for industrialized production.It is therefore desirable to find low-cost carrier.
Common clay is a kind of mineral that content is more, but since its specific surface area is smaller, make its application be catalyst carrier by
Certain limitation.
The present invention activates common clay, improves its specific surface area, obtains activated clays, is then used as catalysis
Agent carrier constructs Cu/ activated clays System Catalyst, and for being catalyzed Furfural hydrogenation to furfural alcohol.Catalyst prepared by the present invention
Catalytic activity with higher, and preparation process is simple, it is low in cost, it is easy to industrialized production.
Summary of the invention
The purpose of the present invention is preparing a kind of Cu/ activated clays hydrogenation catalyst, and it is applied to furfural hydrogenation preparation
In the reaction of furfuryl alcohol, for this purpose, the present invention provides a kind of preparation method of Cu/ activated clays hydrogenation catalyst, the catalyst
Preparation method is relatively simple, as shown in Figure 1, comprising the following steps:
(1) activation of clay: the clay collected in the western school district of University Of Ji'nan and sodium hydroxide are mixed according to the ratio of mass ratio 1:2
It closes uniformly, is placed in Muffle furnace and is warming up to 500 DEG C and keeps the temperature 2 h.The clay obtained after reaction is rinsed with deionized water into
Property, activated clays can be obtained after dry；
(2) preparation of catalyst: the copper nitrate solution of configuration certain mass concentration, using the method copper nitrate of incipient impregnation
Solution impregnating active clay makes the load capacity 5 ~ 50% of copper, impregnates to be transferred in 80 DEG C of baking ovens after 12 h at room temperature and dries 10
H, the solid abrasive after drying is uniform, it is then transferred into tube furnace and carries out calcining reduction, gas flow rate is 80 ml/min,
Wherein H2:N2=40 ml:40 ml, heating rate are 5 DEG C/min, and reaction temperature is 300 ~ 500 DEG C, and the reaction time is 2 h, instead
The copper with high activity/activated clays catalyst should be terminated can be obtained.
Copper/activated clays catalyst performance evaluation: 50 mg of catalyst for taking step (2) to prepare is placed in the reaction kettle of Hull,
The furfural ethanol solution that 4 g mass fractions are 1.0 wt.% is added, is filled with pressurized with hydrogen to 3 MPa, it is 100 that reaction temperature, which is arranged,
DEG C, the reaction time is 2 h, carries out the meter of product liquid analysis and yield using gas chromatography-mass spectrometry after reaction
It calculates.
Beneficial effects of the present invention:
(1) the present invention provides a kind of method for preparing hydrogenation catalyst as raw material using common clay, the preparation method is simple, easy
In industrialized production, and the prices of raw materials are cheap is easily obtained；
(2) copper/activated clays catalyst prepared by the present invention has the activity of good catalysis Furfural hydrogenation to furfural alcohol.
Detailed description of the invention
Fig. 1 is the preparation flow figure of catalyst in the present invention.
Fig. 2 is the yield of furfuryl alcohol in each example Catalysis experiments of the present invention.
Fig. 3 is the gas-chromatography of liquid after copper made from embodiment 2/activated clays catalyst furfural hydrogenation reaction
Figure.
Specific embodiment
Blank example
This blank example directly carries out the performance evaluation of catalysis Furfural hydrogenation to furfural alcohol using activated clays, and concrete operation step is such as
Under:
(1) activation of clay: the clay collected in the western school district of University Of Ji'nan and sodium hydroxide are mixed according to the ratio of mass ratio 1:2
It closes uniformly, is placed in Muffle furnace and is warming up to 500 DEG C and keeps the temperature 2 h.The clay obtained after reaction is rinsed with deionized water into
Property, activated clays can be obtained after dry；
(2) copper/activated clays catalyst performance evaluation: 50 mg of activated clays for taking step (1) to prepare is placed in Hull reaction kettle
In, the furfural ethanol solution that 4 g mass fractions are 1.0 wt.% is added, is filled with pressurized with hydrogen to 3 MPa, reaction temperature, which is arranged, is
100 DEG C, the reaction time is 2 h, carries out product liquid analysis and yield using gas chromatography-mass spectrometry after reaction
It calculates, the yield of furfuryl alcohol is 0.0%, and the result is shown in Fig. 2.
Comparative example
This comparative example prepares catalyst in 400 DEG C of progress calcining reductions using the copper of unactivated clay dipping 20%, and by catalyst
For being catalyzed the performance evaluation of Furfural hydrogenation to furfural alcohol, specific steps are as follows:
(1) preparation of catalyst: the copper nitrate solution of configuration certain mass concentration, using the method copper nitrate of incipient impregnation
Solution impregnates unactivated clay, makes the load capacity 20% of copper, impregnates to be transferred in 80 DEG C of baking ovens after 12 h at room temperature and dries 10
H, the solid abrasive after drying is uniform, it is then transferred into tube furnace and carries out calcining reduction, gas flow rate is 80 ml/min,
Wherein H2:N2=40 ml:40 ml, heating rate are 5 DEG C/min, and reaction temperature is 400 DEG C, and the reaction time is 2 h, reaction knot
The copper with high activity/activated clays catalyst can be obtained in beam；
(2) copper/activated clays catalyst performance evaluation: 50 mg of catalyst for taking step (1) to prepare is placed in the reaction kettle of Hull,
The furfural ethanol solution that 4 g mass fractions are 1.0 wt.% is added, is filled with pressurized with hydrogen to 3 MPa, it is 100 that reaction temperature, which is arranged,
DEG C, the reaction time is 2 h, carries out the meter of product liquid analysis and yield using gas chromatography-mass spectrometry after reaction
It calculates, the yield of furfuryl alcohol is 8.6%, and the result is shown in Fig. 2.
Embodiment 1
The present embodiment prepares catalyst in 300 DEG C of progress calcining reductions using the copper of activated clays dipping 20%, and catalyst is used
In the performance evaluation of catalysis Furfural hydrogenation to furfural alcohol, specific steps are as follows:
(1) activation of clay: the clay collected in the western school district of University Of Ji'nan and sodium hydroxide are mixed according to the ratio of mass ratio 1:2
It closes uniformly, is placed in Muffle furnace and is warming up to 500 DEG C and keeps the temperature 2 h.The clay obtained after reaction is rinsed with deionized water into
Property, activated clays can be obtained after dry；
(2) preparation of catalyst: the copper nitrate solution of configuration certain mass concentration, using the method copper nitrate of incipient impregnation
Solution impregnating active clay makes the load capacity 20% of copper, impregnates to be transferred in 80 DEG C of baking ovens after 12 h at room temperature and dries 10
H, the solid abrasive after drying is uniform, it is then transferred into tube furnace and carries out calcining reduction, gas flow rate is 80 ml/min,
Wherein H2:N2=40 ml:40 ml, heating rate are 5 DEG C/min, and reaction temperature is 300 DEG C, and the reaction time is 2 h, reaction knot
The copper with high activity/activated clays catalyst can be obtained in beam；
(3) copper/activated clays catalyst performance evaluation: 50 mg of catalyst for taking step (2) to prepare is placed in the reaction kettle of Hull,
The furfural ethanol solution that 4 g mass fractions are 1.0 wt.% is added, is filled with pressurized with hydrogen to 3 MPa, it is 100 that reaction temperature, which is arranged,
DEG C, the reaction time is 2 h, carries out the meter of product liquid analysis and yield using gas chromatography-mass spectrometry after reaction
It calculates, the yield of furfuryl alcohol is 75.3%, and the result is shown in Fig. 2.
Embodiment 2
The present embodiment prepares catalyst in 400 DEG C of progress calcining reductions using the copper of activated clays dipping 20%, and catalyst is used
In the performance evaluation of catalysis Furfural hydrogenation to furfural alcohol, specific steps are as follows:
(1) activation of clay: the clay collected in the western school district of University Of Ji'nan and sodium hydroxide are mixed according to the ratio of mass ratio 1:2
It closes uniformly, is placed in Muffle furnace and is warming up to 500 DEG C and keeps the temperature 2 h.The clay obtained after reaction is rinsed with deionized water into
Property, activated clays can be obtained after dry；
(2) preparation of catalyst: the copper nitrate solution of configuration certain mass concentration, using the method copper nitrate of incipient impregnation
Solution impregnating active clay makes the load capacity 20% of copper, impregnates to be transferred in 80 DEG C of baking ovens after 12 h at room temperature and dries 10
H, the solid abrasive after drying is uniform, it is then transferred into tube furnace and carries out calcining reduction, gas flow rate is 80 ml/min,
Wherein H2:N2=40 ml:40 ml, heating rate are 5 DEG C/min, and reaction temperature is 400 DEG C, and the reaction time is 2 h, reaction knot
The copper with high activity/activated clays catalyst can be obtained in beam；
(3) copper/activated clays catalyst performance evaluation: 50 mg of catalyst for taking step (2) to prepare is placed in the reaction kettle of Hull,
The furfural ethanol solution that 4 g mass fractions are 1.0 wt.% is added, is filled with pressurized with hydrogen to 3 MPa, it is 100 that reaction temperature, which is arranged,
DEG C, the reaction time is 2 h, carries out the meter of product liquid analysis and yield using gas chromatography-mass spectrometry after reaction
It calculates, the yield of furfuryl alcohol is 99.9%, and the result is shown in Fig. 2.
Embodiment 3
The present embodiment prepares catalyst in 500 DEG C of progress calcining reductions using the copper of activated clays dipping 20%, and catalyst is used
In the performance evaluation of catalysis Furfural hydrogenation to furfural alcohol, specific steps are as follows:
(1) activation of clay: the clay collected in the western school district of University Of Ji'nan and sodium hydroxide are mixed according to the ratio of mass ratio 1:2
It closes uniformly, is placed in Muffle furnace and is warming up to 500 DEG C and keeps the temperature 2 h.The clay obtained after reaction is rinsed with deionized water into
Property, activated clays can be obtained after dry；
(2) preparation of catalyst: the copper nitrate solution of configuration certain mass concentration, using the method copper nitrate of incipient impregnation
Solution impregnating active clay makes the load capacity 20% of copper, impregnates to be transferred in 80 DEG C of baking ovens after 12 h at room temperature and dries 10
H, the solid abrasive after drying is uniform, it is then transferred into tube furnace and carries out calcining reduction, gas flow rate is 80 ml/min,
Wherein H2:N2=40 ml:40 ml, heating rate are 5 DEG C/min, and reaction temperature is 500 DEG C, and the reaction time is 2 h, reaction knot
The copper with high activity/activated clays catalyst can be obtained in beam；
(3) copper/activated clays catalyst performance evaluation: 50 mg of catalyst for taking step (2) to prepare is placed in the reaction kettle of Hull,
The furfural ethanol solution that 4 g mass fractions are 1.0 wt.% is added, is filled with pressurized with hydrogen to 3 MPa, it is 100 that reaction temperature, which is arranged,
DEG C, the reaction time is 2 h, carries out the meter of product liquid analysis and yield using gas chromatography-mass spectrometry after reaction
It calculates, the yield of furfuryl alcohol is 65.4%, and the result is shown in Fig. 2.
Embodiment 4
The present embodiment prepares catalyst in 400 DEG C of progress calcining reductions using the copper of activated clays dipping 5%, and catalyst is used
In the performance evaluation of catalysis Furfural hydrogenation to furfural alcohol, specific steps are as follows:
(1) activation of clay: the clay collected in the western school district of University Of Ji'nan and sodium hydroxide are mixed according to the ratio of mass ratio 1:2
It closes uniformly, is placed in Muffle furnace and is warming up to 500 DEG C and keeps the temperature 2 h.The clay obtained after reaction is rinsed with deionized water into
Property, activated clays can be obtained after dry；
(2) preparation of catalyst: the copper nitrate solution of configuration certain mass concentration, using the method copper nitrate of incipient impregnation
Solution impregnating active clay makes the load capacity 5% of copper, impregnates to be transferred in 80 DEG C of baking ovens after 12 h at room temperature and dries 10 h,
Solid abrasive after drying is uniform, it is then transferred into tube furnace and carries out calcining reduction, gas flow rate is 80 ml/min,
Middle H2:N2=40 ml:40 ml, heating rate are 5 DEG C/min, and reaction temperature is 400 DEG C, and the reaction time is 2 h, and reaction terminates
The copper with high activity/activated clays catalyst can be obtained；
(3) copper/activated clays catalyst performance evaluation: 50 mg of catalyst for taking step (2) to prepare is placed in the reaction kettle of Hull,
The furfural ethanol solution that 4 g mass fractions are 1.0 wt.% is added, is filled with pressurized with hydrogen to 3 MPa, it is 100 that reaction temperature, which is arranged,
DEG C, the reaction time is 2 h, carries out the meter of product liquid analysis and yield using gas chromatography-mass spectrometry after reaction
It calculates, the yield of furfuryl alcohol is 37.8%, and the result is shown in Fig. 2.
Embodiment 5
The present embodiment prepares catalyst in 400 DEG C of progress calcining reductions using the copper of activated clays dipping 10%, and catalyst is used
In the performance evaluation of catalysis Furfural hydrogenation to furfural alcohol, specific steps are as follows:
(1) activation of clay: the clay collected in the western school district of University Of Ji'nan and sodium hydroxide are mixed according to the ratio of mass ratio 1:2
It closes uniformly, is placed in Muffle furnace and is warming up to 500 DEG C and keeps the temperature 2 h.The clay obtained after reaction is rinsed with deionized water into
Property, activated clays can be obtained after dry；
(2) preparation of catalyst: the copper nitrate solution of configuration certain mass concentration, using the method copper nitrate of incipient impregnation
Solution impregnating active clay makes the load capacity 10% of copper, impregnates to be transferred in 80 DEG C of baking ovens after 12 h at room temperature and dries 10
H, the solid abrasive after drying is uniform, it is then transferred into tube furnace and carries out calcining reduction, gas flow rate is 80 ml/min,
Wherein H2:N2=40 ml:40 ml, heating rate are 5 DEG C/min, and reaction temperature is 400 DEG C, and the reaction time is 2 h, reaction knot
The copper with high activity/activated clays catalyst can be obtained in beam；
(3) copper/activated clays catalyst performance evaluation: 50 mg of catalyst for taking step (2) to prepare is placed in the reaction kettle of Hull,
The furfural ethanol solution that 4 g mass fractions are 1.0 wt.% is added, is filled with pressurized with hydrogen to 3 MPa, it is 100 that reaction temperature, which is arranged,
DEG C, the reaction time is 2 h, carries out the meter of product liquid analysis and yield using gas chromatography-mass spectrometry after reaction
It calculates, the yield of furfuryl alcohol is 80.1%, and the result is shown in Fig. 2.
Embodiment 6
The present embodiment prepares catalyst in 400 DEG C of progress calcining reductions using the copper of activated clays dipping 30%, and catalyst is used
In the performance evaluation of catalysis Furfural hydrogenation to furfural alcohol, specific steps are as follows:
(1) activation of clay: the clay collected in the western school district of University Of Ji'nan and sodium hydroxide are mixed according to the ratio of mass ratio 1:2
It closes uniformly, is placed in Muffle furnace and is warming up to 500 DEG C and keeps the temperature 2 h.The clay obtained after reaction is rinsed with deionized water into
Property, activated clays can be obtained after dry；
(2) preparation of catalyst: the copper nitrate solution of configuration certain mass concentration, using the method copper nitrate of incipient impregnation
Solution impregnating active clay makes the load capacity 30% of copper, impregnates to be transferred in 80 DEG C of baking ovens after 12 h at room temperature and dries 10
H, the solid abrasive after drying is uniform, it is then transferred into tube furnace and carries out calcining reduction, gas flow rate is 80 ml/min,
Wherein H2:N2=40 ml:40 ml, heating rate are 5 DEG C/min, and reaction temperature is 400 DEG C, and the reaction time is 2 h, reaction knot
The copper with high activity/activated clays catalyst can be obtained in beam；
(3) copper/activated clays catalyst performance evaluation: 50 mg of catalyst for taking step (2) to prepare is placed in the reaction kettle of Hull,
The furfural ethanol solution that 4 g mass fractions are 1.0 wt.% is added, is filled with pressurized with hydrogen to 3 MPa, it is 100 that reaction temperature, which is arranged,
DEG C, the reaction time is 2 h, carries out the meter of product liquid analysis and yield using gas chromatography-mass spectrometry after reaction
It calculates, the yield of furfuryl alcohol is 89.3%, and the result is shown in Fig. 2.
Embodiment 7
The present embodiment prepares catalyst in 400 DEG C of progress calcining reductions using the copper of activated clays dipping 40%, and catalyst is used
In the performance evaluation of catalysis Furfural hydrogenation to furfural alcohol, specific steps are as follows:
(1) activation of clay: the clay collected in the western school district of University Of Ji'nan and sodium hydroxide are mixed according to the ratio of mass ratio 1:2
It closes uniformly, is placed in Muffle furnace and is warming up to 500 DEG C and keeps the temperature 2 h.The clay obtained after reaction is rinsed with deionized water into
Property, activated clays can be obtained after dry；
(2) preparation of catalyst: the copper nitrate solution of configuration certain mass concentration, using the method copper nitrate of incipient impregnation
Solution impregnating active clay makes the load capacity 40% of copper, impregnates to be transferred in 80 DEG C of baking ovens after 12 h at room temperature and dries 10
H, the solid abrasive after drying is uniform, it is then transferred into tube furnace and carries out calcining reduction, gas flow rate is 80 ml/min,
Wherein H2:N2=40 ml:40 ml, heating rate are 5 DEG C/min, and reaction temperature is 400 DEG C, and the reaction time is 2 h, reaction knot
The copper with high activity/activated clays catalyst can be obtained in beam；
(3) copper/activated clays catalyst performance evaluation: 50 mg of catalyst for taking step (2) to prepare is placed in the reaction kettle of Hull,
The furfural ethanol solution that 4 g mass fractions are 1.0 wt.% is added, is filled with pressurized with hydrogen to 3 MPa, it is 100 that reaction temperature, which is arranged,
DEG C, the reaction time is 2 h, carries out the meter of product liquid analysis and yield using gas chromatography-mass spectrometry after reaction
It calculates, the yield of furfuryl alcohol is 87.6%, and the result is shown in Fig. 2.
Embodiment 8
The present embodiment prepares catalyst in 400 DEG C of progress calcining reductions using the copper of activated clays dipping 50%, and catalyst is used
In the performance evaluation of catalysis Furfural hydrogenation to furfural alcohol, specific steps are as follows:
(1) activation of clay: the clay collected in the western school district of University Of Ji'nan and sodium hydroxide are mixed according to the ratio of mass ratio 1:2
It closes uniformly, is placed in Muffle furnace and is warming up to 500 DEG C and keeps the temperature 2 h.The clay obtained after reaction is rinsed with deionized water into
Property, activated clays can be obtained after dry；
(2) preparation of catalyst: the copper nitrate solution of configuration certain mass concentration, using the method copper nitrate of incipient impregnation
Solution impregnating active clay makes the load capacity 20% of copper, impregnates to be transferred in 80 DEG C of baking ovens after 12 h at room temperature and dries 10
H, the solid abrasive after drying is uniform, it is then transferred into tube furnace and carries out calcining reduction, gas flow rate is 80 ml/min,
Wherein H2:N2=40 ml:40 ml, heating rate are 5 DEG C/min, and reaction temperature is 400 DEG C, and the reaction time is 2 h, reaction knot
The copper with high activity/activated clays catalyst can be obtained in beam；
(3) copper/activated clays catalyst performance evaluation: 50 mg of catalyst for taking step (2) to prepare is placed in the reaction kettle of Hull,
The furfural ethanol solution that 4 g mass fractions are 1.0 wt.% is added, is filled with pressurized with hydrogen to 3 MPa, it is 100 that reaction temperature, which is arranged,
DEG C, the reaction time is 2 h, carries out the meter of product liquid analysis and yield using gas chromatography-mass spectrometry after reaction
It calculates, the yield of furfuryl alcohol is 80.7%, and the result is shown in Fig. 2.
Embodiment cited by the present invention prepares the yield of catalyst Furfural hydrogenation to furfural alcohol as shown in Fig. 2, by blank example
It is found that activated clays itself cannot be catalyzed Furfural hydrogenation to furfural alcohol without activity；By comparative example it is found that is do not activated is glutinous
For soil since specific surface area is smaller, obtained catalyst activity is lower；Comparative example is compared, embodiment yield is improved；Pass through
Embodiment 1,2 and 3 is it is found that the optimum value of calcining reduction temperature is 400 DEG C；By embodiment 2,4,5,6,7 and 8 it is found that copper
Optimum load amount is 20%.Be comprehensively compared it is found that using activated clays as carrier, copper load capacity be 20%, calcining reduction temperature is 400
Copper/activated clays catalyst prepared by DEG C has optimal catalytic activity.
Certainly, above description is also not limited to the example above, technical characteristic of the present invention without description can by or
It is realized using the prior art, details are not described herein；Above embodiments and attached drawing are only used to illustrate the technical scheme of the present invention not
It is limitation of the present invention, is described the invention in detail referring to preferred embodiment, the ordinary skill people of this field
Member is it should be appreciated that variation, remodeling, the addition that those skilled in the art are made within the essential scope of the present invention
Or replacement also should belong to claims of the invention without departure from spirit of the invention.
Claims (7)
1. a kind of preparation method of the Cu/ activated clays catalyst of efficient catalytic furfural furfuryl alcohol, which is characterized in that the Cu/
The preparation method of activated clays catalyst includes the following steps:
(1) activation of clay: the clay collected in the western school district of University Of Ji'nan is uniformly mixed according to a certain percentage with activator, is set
It is warming up to assigned temperature in Muffle furnace and keeps the temperature 2 h, the clay obtained after reaction is rinsed with deionized water to neutrality, it is dry
After activated clays can be obtained；
(2) preparation of catalyst: the copper nitrate solution of configuration certain mass concentration, using the method copper nitrate of incipient impregnation
Solution impregnating active clay impregnates to be transferred in 80 DEG C of baking ovens after 12 h at room temperature and dries 10 h, the solid after drying is ground
Mill uniformly, is then transferred into tube furnace and carries out calcining reduction, and reaction terminates that copper/activated clays with high activity can be obtained
Catalyst.
2. the preparation method of Cu/ activated clays catalyst according to claim 1, it is characterised in that: the step (1)
In, activator is sodium hydroxide.
3. the preparation method of Cu/ activated clays catalyst according to claim 1, it is characterised in that: the step (1)
In, the ratio of clay and activator is mass ratio 1:2.
4. the preparation method of Cu/ activated clays catalyst according to claim 1, it is characterised in that: the step (1)
In, the activation temperature of clay is 500 DEG C.
5. the preparation method of Cu/ activated clays catalyst according to claim 1, it is characterised in that: the step (2)
In, the load capacity 5 ~ 50% of copper is made with copper nitrate solution impregnating active clay.
6. the preparation method of Cu/ activated clays catalyst according to claim 1, it is characterised in that: the step (2)
In, calcining reduction temperature is 300 ~ 500 DEG C.
7. the preparation method of Cu/ activated clays catalyst according to claim 1, it is characterised in that: the step (2)
In, the gas flow rate that when calcining reduction uses is 80 ml/min, wherein H2:N2=40 ml: 40 ml。
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| CN113441163A (en) * | 2021-05-20 | 2021-09-28 | 济南大学 | Preparation method and application of novel nitrogen-doped hydrothermal carbon-supported copper catalyst |
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