CN111111654A - Preparation method and application of improved Pt/Mg-Al-O dehydrogenation catalyst - Google Patents

Preparation method and application of improved Pt/Mg-Al-O dehydrogenation catalyst Download PDF

Info

Publication number
CN111111654A
CN111111654A CN201911425042.9A CN201911425042A CN111111654A CN 111111654 A CN111111654 A CN 111111654A CN 201911425042 A CN201911425042 A CN 201911425042A CN 111111654 A CN111111654 A CN 111111654A
Authority
CN
China
Prior art keywords
improved
preparation
solution
dehydrogenation catalyst
dehydrogenation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201911425042.9A
Other languages
Chinese (zh)
Inventor
杨运泉
陈风涛
王威燕
黄艳平
刘文英
李文松
李正科
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xiangtan University
Original Assignee
Xiangtan University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xiangtan University filed Critical Xiangtan University
Priority to CN201911425042.9A priority Critical patent/CN111111654A/en
Publication of CN111111654A publication Critical patent/CN111111654A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B01J23/54—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/56—Platinum group metals
    • B01J23/58—Platinum group metals with alkali- or alkaline earth metals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/002—Mixed oxides other than spinels, e.g. perovskite
    • B01J35/394—
    • B01J35/615—
    • B01J35/638—
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/02—Impregnation, coating or precipitation
    • B01J37/03—Precipitation; Co-precipitation
    • B01J37/031—Precipitation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/08—Heat treatment
    • B01J37/082—Decomposition and pyrolysis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/16—Reducing
    • B01J37/18—Reducing with gases containing free hydrogen
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/34—Irradiation by, or application of, electric, magnetic or wave energy, e.g. ultrasonic waves ; Ionic sputtering; Flame or plasma spraying; Particle radiation
    • B01J37/341—Irradiation by, or application of, electric, magnetic or wave energy, e.g. ultrasonic waves ; Ionic sputtering; Flame or plasma spraying; Particle radiation making use of electric or magnetic fields, wave energy or particle radiation
    • B01J37/343—Irradiation by, or application of, electric, magnetic or wave energy, e.g. ultrasonic waves ; Ionic sputtering; Flame or plasma spraying; Particle radiation making use of electric or magnetic fields, wave energy or particle radiation of ultrasonic wave energy
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C5/00—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
    • C07C5/32—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by dehydrogenation with formation of free hydrogen
    • C07C5/367—Formation of an aromatic six-membered ring from an existing six-membered ring, e.g. dehydrogenation of ethylcyclohexane to ethylbenzene
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2523/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00
    • C07C2523/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of noble metals
    • C07C2523/54—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of noble metals combined with metals, oxides or hydroxides provided for in groups C07C2523/02 - C07C2523/36
    • C07C2523/56—Platinum group metals
    • C07C2523/58—Platinum group metals with alkali- or alkaline earth metals or beryllium
    • 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

Abstract

The invention discloses a preparation method and application of an improved Pt/Mg-Al-O dehydrogenation catalyst. Firstly, preparing a Mg-Al hydrotalcite carrier with high specific surface area, large pore volume and pore diameter by adopting an alkali precipitation method and regulating and controlling the technological conditions of the precipitation reaction process, then loading an active component Pt on the Mg-Al hydrotalcite carrier by utilizing an ultrasonic-assisted impregnation method, and then calcining and reducing hydrogen to obtain the Pt/Mg-Al-O catalyst. The catalyst prepared by the method has large specific surface area, pore volume and pore diameter, can obviously improve the metal dispersity of Pt, can show excellent hydrogen release rate in the dehydrogenation reaction of the liquid organic hydrogen carrier, obviously improves the stability, is used in the dehydrogenation reaction of the liquid organic hydrogen carrier methylcyclohexane, and can still reach more than 95 percent of the conversion rate of reactants after the reaction is carried out for 200 hours.

Description

Preparation method and application of improved Pt/Mg-Al-O dehydrogenation catalyst
Technical Field
The invention belongs to the field of chemical hydrogen storage, and particularly relates to a preparation method and application of an improved Pt/Mg-Al-O dehydrogenation catalyst.
Background
With the excessive exploitation and large consumption of fossil energy, the development of new renewable energy sources to replace traditional energy sources is urgently needed. Hydrogen energy is considered to be one of the most potential energy sources in this century because of its wide source, cleanliness and environmental protection. However, large-scale utilization of hydrogen energy requires solutions to overcome various storage and transportation problems caused by the low bulk density of hydrogen gas. Liquid organic hydrides have received much attention because of their high hydrogen storage density, low cost and recyclability. In liquid organohydride systems, hydrogen is stored in a hydrogen-deficient medium by a hydrogenation reaction and is released from a hydrogen-rich medium by a reversible dehydrogenation reaction. The storage form greatly improves the safety of the hydrogen transportation process, can be compatible with the existing petroleum infrastructure, and is easy to be widely applied. However, the dehydrogenation reaction temperature is high, and the catalyst is easy to be deactivated due to carbon deposition or active component agglomeration in the reaction process. Therefore, the preparation of the catalyst with high activity and good stability has great significance for accelerating the realization of large-scale application of hydrogen energy.
In the existing catalysts, Ni, Ir, Pd and Pt are often used as active components of dehydrogenation catalysts. Wherein Pt has high activation capability on C-H bonds and shows high activity on dehydrogenation of cycloalkane. The higher the metal dispersion, the higher the catalyst activity at the same level of active component. Document 1[ Materials Chemistry and Physics,209(2018)188-199]Reporting Mo-SiO as a partial reduction2The catalyst with the carrier loaded with metal Pt shows a better catalytic effect on dehydrogenation reaction of cycloalkane. Variations in the type of support also have a large effect on the dehydrogenation performance of the catalyst. Alumina has a large specific surface area and is a common dehydrogenation catalyst carrier, but the large number of surface acid sites easily causes coking and deactivation of the catalyst. Therefore, after the alkali metal magnesium is added into the alumina carrier, the acidic sites on the surface of the carrier can be effectively neutralized, the coking and inactivation of the catalyst are inhibited, and the dehydrogenation stability of the catalyst is improved. The invention CN106622228A discloses a method for preparing a dehydrogenation catalyst by using Ce or Zr doped Mg-Al hydrotalcite as a carrier and Pt as an active component. The invention CN107376907A discloses a preparation method of a supported hydrotalcite dehydrogenation catalyst which takes Mg-Al hydrotalcite as a carrier, Pt as an active component and Sn as an auxiliary agent. The invention CN109331823A discloses a one-step method for preparing a Pt/Ce-Mg-Al-O dehydrogenation catalyst, which shows better catalytic activity in dehydrogenation reaction.
However, the Mg-Al hydrotalcite prepared by the conventional method has small pore volume and pore diameter, and active components cannot effectively enter a double-layer structure of the hydrotalcite, so that the stability of the catalyst is poor.
In order to overcome the problems, the invention discloses a preparation method of an improved Pt/Mg-Al-O dehydrogenation catalyst, which comprises the following steps: by adopting a coprecipitation method, Mg-Al hydrotalcite with high specific surface area, large pore volume and pore diameter is prepared by controlling the dropping speed, reaction time, crystallization temperature, crystallization and cooling time of a precipitation reaction, and then the Pt-Mg-Al-O dehydrogenation catalyst with high stability is obtained by isovolumetric loading of an active component Pt, drying, calcining and hydrogen reduction. The catalyst prepared by the method has excellent dehydrogenation activity and stability, and has good industrial application prospect.
Disclosure of Invention
Aiming at the problems of poor dehydrogenation stability and the like in the existing organic liquid hydride hydrogen storage technology, the invention provides a preparation method and application of an improved Pt/Mg-Al-O dehydrogenation catalyst, the obtained catalyst has obviously improved stability, and can show excellent dehydrogenation activity in the dehydrogenation reaction of a liquid organic hydrogen carrier without adding other auxiliary agents.
The technical scheme of the invention is as follows:
a preparation method of an improved Pt/Mg-Al-O dehydrogenation catalyst comprises the steps of taking Mg-Al composite oxide with high specific surface area, large pore volume and small pore diameter as a carrier, taking reduced Pt as an active component, preparing a Mg-Al hydrotalcite carrier by an alkali precipitation method, filtering, washing and drying the carrier, loading the active component Pt on the carrier by an ultrasonic-assisted impregnation method, and finally drying, calcining and reducing by hydrogen to obtain the Pt/Mg-Al-O dehydrogenation catalyst; the method specifically comprises the following steps:
(1) dissolving magnesium salt and aluminum salt in deionized water to prepare a solution A, dissolving sodium hydroxide and sodium carbonate in deionized water to prepare a solution B, simultaneously and slowly dripping the solution A and the solution B into a reactor under the condition of violent stirring for fully mixing and continuing precipitation reaction, transferring a mixed solution obtained after the precipitation reaction into a hydrothermal kettle for crystallization, and finally cooling, standing, filtering, washing and drying to obtain a Mg-Al hydrotalcite carrier;
(2) loading Pt on a Mg-Al hydrotalcite carrier by an ultrasonic-assisted impregnation means, and drying, calcining and reducing by hydrogen to obtain the improved Pt/Mg-Al-O dehydrogenation catalyst.
Further, in the step (1), the magnesium salt is magnesium nitrate, and the aluminum salt is aluminum nitrate.
Further, in the step (1), the dropping rate of the solution A is 0.5-5.0 mL/min.
Further, in the step (1), the ratio of the dropping speed of the solution A to the dropping speed of the solution B is (1-4) to (1-4).
Further, in the step (1), the precipitation reaction time is 1-10 hours.
Further, in the step (1), the crystallization temperature is 90-200 ℃, and the crystallization time is 1-24 hours.
Furthermore, in the step (1), the cooling after crystallization is preferably a natural cooling method.
Further, in the step (1), the standing time after cooling is 0.5-10 hours.
The catalyst obtained by the preparation method is applied to dehydrogenation reaction of the liquid organic hydrogen carrier.
Further, the liquid organic hydrogen carrier is preferably methylcyclohexane.
The invention has the beneficial effects that:
(1) the catalyst prepared by the invention has the advantages of simple preparation method, easily obtained preparation raw materials, no need of adding other auxiliary agents, less noble metal content and obvious saving of the production cost of the catalyst, can show excellent activity in the process of carrying out dehydrogenation reaction on a liquid organic hydrogen carrier, and most importantly, obviously improves the stability, and can still reach more than 95 percent of the conversion rate of reactants after 200 hours of reaction when being used in the dehydrogenation reaction of the liquid organic hydrogen carrier methylcyclohexane.
(2) Compared with the catalyst prepared by other methods, the Pt/Mg-Al-O dehydrogenation catalyst prepared by the invention has larger specific surface area and pore volume and pore diameter, can enable the active component Pt to be embedded into the double-layer structure of hydrotalcite, greatly improves the dispersion degree of Pt and reduces the particle size of Pt nano particles.
Drawings
FIG. 1 shows X-ray powder diffraction patterns of Mg-Al hydrotalcite (a) and Pt/Mg-Al-O (b) dehydrogenation catalysts prepared by the present invention. As can be seen from the figure, the Mg-Al hydrotalcite prepared by the invention is a typical hydrotalcite structure, and in the Pt/Mg-Al-O dehydrogenation catalyst obtained by calcining, the hydrotalcite structure is converted into Mg-Al composite oxide.
Detailed Description
The present invention is illustrated in detail by the following examples.
The reagents used in the examples were all analytical grade, water was deionized water.
Example 1
Weighing 3.84g of magnesium nitrate hexahydrate and 1.88g of aluminum nitrate nonahydrate, and dissolving the materials in 40mL of deionized water to prepare a solution A; 2.4g of sodium hydroxide and 0.4g of sodium carbonate are weighed and dissolved in 50mL of deionized water to prepare solutionB. The dropping rate of the solution A is controlled to be 1.0mL/min, the dropping rate of the solution B is controlled to be 0.5mL/min (the dropping rate ratio of the solution A to the solution B is 2:1), and the solution A and the solution B are slowly dropped and mixed. Continuously reacting for 2 hours after the dropwise adding is finished, controlling the pH value of the solution to be about 9.7 in the reaction process, then transferring the suspension obtained by the reaction to a 200mL hydrothermal kettle, crystallizing at 95 ℃ for 10 hours, naturally cooling to room temperature, standing for 10 hours, taking out, filtering, washing and drying to obtain the product with the specific surface area of 151.35m2Per g, pore volume of 0.87cm3Mg-Al hydrotalcite support with a pore diameter of 23.7 nm/g. Taking 1g of the carrier, dropwise adding a chloroplatinic acid acetone solution into the carrier for impregnation and loading, evaporating the solvent to dryness, and then drying, calcining and reducing by hydrogen to obtain the carrier with high specific surface area (216.81 m)2Per g) and a large pore volume of 1.43cm3Modified Pt/Mg-Al-O dehydrogenation catalyst with/g large pore diameter (24.2 nm).
0.5g of the catalyst is placed in a reaction tube, dehydrogenation reaction is carried out on the liquid organic hydrogen carrier methylcyclohexane on a miniature fixed bed reactor, and the reaction activity and the stability of the catalyst are tested. When the reaction temperature rises to 350 ℃, introducing the methylcyclohexane at a feeding speed of 0.1mL/min by using a high-pressure constant flow pump, periodically sampling and analyzing, after continuously reacting for 200 hours, sampling and detecting to obtain the methylcyclohexane with the conversion rate of 95.81%, the stability only reduced by 3.25%, the toluene selectivity 99.9%, and the hydrogen release rate 925.1mmol/gPt/min。
Example 2
The dropping speed of the solution A is changed to 5.0mL/min when Mg-Al hydrotalcite is prepared, the ratio of the dropping speed of the solution A to the dropping speed of the solution B is changed to 4:1, the crystallization temperature is changed to 90 ℃, the crystallization time is changed to 1 hour, the standing time is changed to 0.5 hour after natural cooling, and the preparation methods and the flow of other catalysts are kept consistent with those of the embodiment 1. After 200 hours of continuous reaction, the conversion rate of the methylcyclohexane is 68.15%, the stability is only reduced by 12.17%, the selectivity of the toluene is 99.9%, and the hydrogen release rate is 658.0mmol/gPt/min。
Example 3
The dropping speed of the solution A is changed to 0.5mL/min when Mg-Al hydrotalcite is prepared, the ratio of the dropping speeds of the solution A and the solution B is changed to 1:1, and the crystallization time is changed to 24 hoursThe preparation and flow of the other catalysts were kept the same as in example 1. After 200 hours of continuous reaction, the conversion rate of the methylcyclohexane is 86.21 percent, the stability is only reduced by 6.51 percent, the selectivity of the toluene is 99.9 percent, and the hydrogen release rate is 832.3mmol/gPt/min。
Example 4
The reaction time for preparing Mg-Al hydrotalcite was changed to 10 hours, the cooling mode was changed to water cooling, and the preparation methods and procedures of other catalysts were kept the same as those of example 1. After 200 hours of continuous reaction, the conversion rate of the methyl cyclohexane is 90.43 percent, the stability is only reduced by 5.39 percent, the selectivity of the toluene is 99.9 percent, and the hydrogen release rate is 873.1mmol/gPt/min。
Example 5
The reaction time for the preparation of Mg-Al hydrotalcite was changed to 1 hour, and the preparation methods and procedures of the other catalysts were kept the same as in example 1. After 200 hours of continuous reaction, the conversion rate of the methylcyclohexane is 48.21 percent, the stability is reduced by 21.77 percent, the selectivity of the toluene is 99.9 percent, and the hydrogen release rate is 465.5mmol/gPt/min。
Example 6
The crystallization temperature was changed to 200 ℃, and the preparation methods and procedures of other catalysts were kept the same as in example 1. After 200 hours of continuous reaction, the conversion rate of the methyl cyclohexane is 78.62 percent, the stability is only reduced by 9.35 percent, the selectivity of the toluene is 99.9 percent, and the hydrogen release rate is 759.1mmol/gPt/min。
Example 7
The reduction temperature of the catalyst precursor was changed to 300 c and the preparation methods and procedures of the other catalysts were kept in accordance with example 1. After 200 hours of continuous reaction, the conversion rate of the methylcyclohexane was 72.59%, the stability was reduced by 11.37%, the selectivity of the toluene was 99.9%, and the hydrogen release rate was 700.8mmol/gPt/min。
Example 8
The reduction temperature of the catalyst precursor was changed to 400 c and the preparation methods and procedures of the other catalysts were kept in accordance with example 1. After 200 hours of continuous reaction, the conversion rate of the methyl cyclohexane is 85.25 percent, the stability is only reduced by 7.65 percent, and the selectivity of the toluene is99.9% and a hydrogen release rate of 823.1mmol/gPt/min。
Example 9
The calcination temperature was changed to 400 c and the preparation methods and procedures for the other catalysts were kept the same as in example 1. After 200 hours of continuous reaction, the conversion rate of the methylcyclohexane is 75.36%, the stability is only reduced by 8.55%, the selectivity of the toluene is 99.9%, and the hydrogen release rate is 727.6mmol/gPt/min。

Claims (10)

1. A preparation method of an improved Pt/Mg-Al-O dehydrogenation catalyst is characterized by comprising the following steps:
(1) dissolving magnesium salt and aluminum salt in deionized water to prepare a solution A, dissolving sodium hydroxide and sodium carbonate in deionized water to prepare a solution B, simultaneously and slowly dripping the solution A and the solution B into a reactor under the condition of violent stirring for fully mixing and continuing precipitation reaction, transferring a mixed solution obtained after the precipitation reaction into a hydrothermal kettle for crystallization, and finally cooling, standing, filtering, washing and drying to obtain a Mg-Al hydrotalcite carrier;
(2) loading Pt on a Mg-Al hydrotalcite carrier by an ultrasonic-assisted impregnation means, and drying, calcining and reducing by hydrogen to obtain the improved Pt/Mg-Al-O dehydrogenation catalyst.
2. The method of claim 1, wherein in step (1), the magnesium salt is magnesium nitrate and the aluminum salt is aluminum nitrate.
3. The preparation method of the improved Pt/Mg-Al-O dehydrogenation catalyst according to claim 1, wherein in the step (1), the dropping rate of the solution A is 0.5-5.0 mL/min.
4. The preparation method of the improved Pt/Mg-Al-O dehydrogenation catalyst according to claim 1, wherein in the step (1), the ratio of the dropping speed of the solution A to the dropping speed of the solution B is (1-4): (1-4).
5. The preparation method of the improved Pt/Mg-Al-O dehydrogenation catalyst according to claim 1, wherein in the step (1), the precipitation reaction time is 1-10 hours.
6. The preparation method of the improved Pt/Mg-Al-O dehydrogenation catalyst according to claim 1, wherein in the step (1), the crystallization temperature is 90-200 ℃ and the crystallization time is 1-24 hours.
7. The method for preparing the improved Pt/Mg-Al-O dehydrogenation catalyst according to claim 1, wherein in the step (1), the natural cooling mode is adopted for cooling after crystallization.
8. The preparation method of the improved Pt/Mg-Al-O dehydrogenation catalyst according to claim 1, wherein in the step (1), the standing time after cooling is 0.5-10 hours.
9. Use of the catalyst obtained by the preparation process according to any one of claims 1 to 8 in dehydrogenation reactions of liquid organic hydrogen carriers.
10. The use according to claim 9, wherein the liquid organic hydrogen carrier is methylcyclohexane.
CN201911425042.9A 2019-12-31 2019-12-31 Preparation method and application of improved Pt/Mg-Al-O dehydrogenation catalyst Pending CN111111654A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911425042.9A CN111111654A (en) 2019-12-31 2019-12-31 Preparation method and application of improved Pt/Mg-Al-O dehydrogenation catalyst

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911425042.9A CN111111654A (en) 2019-12-31 2019-12-31 Preparation method and application of improved Pt/Mg-Al-O dehydrogenation catalyst

Publications (1)

Publication Number Publication Date
CN111111654A true CN111111654A (en) 2020-05-08

Family

ID=70507220

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911425042.9A Pending CN111111654A (en) 2019-12-31 2019-12-31 Preparation method and application of improved Pt/Mg-Al-O dehydrogenation catalyst

Country Status (1)

Country Link
CN (1) CN111111654A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112934221A (en) * 2021-02-01 2021-06-11 黑龙江省科学院石油化学研究院 Nickel-iron hydrotalcite supported superfine nano ruthenium catalyst and preparation method thereof
CN116393124A (en) * 2023-03-23 2023-07-07 中国石油大学(北京) Pt-based catalyst and preparation method and application thereof

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999046039A1 (en) * 1998-03-13 1999-09-16 Den Norske Stats Oljeselskap A.S Improved catalyst support material
WO2010111849A1 (en) * 2009-04-02 2010-10-07 北京化工大学 Solid basic catalyst for synthesizing alkanolamide compounds and preparation method thereof
CN106268861A (en) * 2016-09-30 2017-01-04 湘潭大学 A kind of magnetic hydrogenation deoxidation catalyst and preparation method thereof
CN107376907A (en) * 2017-07-28 2017-11-24 湘潭大学 A kind of platinum tin carried hydrotalcite dehydrogenation and its preparation method and application
CN108579720A (en) * 2018-05-14 2018-09-28 福州大学 It is a kind of using rare earth doped houghite as hydrogen sulfide selective oxidation catalyst of presoma and preparation method thereof
CN109331823A (en) * 2018-10-17 2019-02-15 湘潭大学 A kind of hydrocarbon dehydrogenation and its preparation method and application

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999046039A1 (en) * 1998-03-13 1999-09-16 Den Norske Stats Oljeselskap A.S Improved catalyst support material
WO2010111849A1 (en) * 2009-04-02 2010-10-07 北京化工大学 Solid basic catalyst for synthesizing alkanolamide compounds and preparation method thereof
CN106268861A (en) * 2016-09-30 2017-01-04 湘潭大学 A kind of magnetic hydrogenation deoxidation catalyst and preparation method thereof
CN107376907A (en) * 2017-07-28 2017-11-24 湘潭大学 A kind of platinum tin carried hydrotalcite dehydrogenation and its preparation method and application
CN108579720A (en) * 2018-05-14 2018-09-28 福州大学 It is a kind of using rare earth doped houghite as hydrogen sulfide selective oxidation catalyst of presoma and preparation method thereof
CN109331823A (en) * 2018-10-17 2019-02-15 湘潭大学 A kind of hydrocarbon dehydrogenation and its preparation method and application

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
刘志远等: "碳酸根型镁铝复合氢氧化物的合成与表征", 《铜业工程》 *
蒋新民等: "Pt/Al_2O_3与Pt/MgO-Al_2O_3催化剂制备及其催化氢能载体甲基环己烷脱氢反应性能", 《工业催化》 *
赵瑞玉等: "镁―铝水滑石及其衍生复合氧化物的合成", 《石油大学学报(自然科学版)》 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112934221A (en) * 2021-02-01 2021-06-11 黑龙江省科学院石油化学研究院 Nickel-iron hydrotalcite supported superfine nano ruthenium catalyst and preparation method thereof
CN116393124A (en) * 2023-03-23 2023-07-07 中国石油大学(北京) Pt-based catalyst and preparation method and application thereof

Similar Documents

Publication Publication Date Title
Liu et al. The development of MOFs-based nanomaterials in heterogeneous organocatalysis
CN107376907B (en) A kind of platinum tin carried hydrotalcite dehydrogenation and its preparation method and application
Sato et al. Surface dynamics for creating highly active ru sites for ammonia synthesis: accumulation of a low-crystalline, oxygen-deficient nanofraction
CA3033171A1 (en) Method for manufacturing ammonia synthesis catalyst, and method for manufacturing ammonia
CN110327933B (en) Catalyst for preparing methanol by carbon dioxide hydrogenation, preparation method and application thereof
CN113209976B (en) Catalyst for methanol steam reforming hydrogen production, preparation method and application thereof, and methanol steam reforming hydrogen production reaction
CN114405505B (en) Platinum modified indium-based oxide catalyst and preparation method and application thereof
CN111111654A (en) Preparation method and application of improved Pt/Mg-Al-O dehydrogenation catalyst
Chen et al. Wet-impregnated bimetallic Pd-Ni catalysts with enhanced activity for dehydrogenation of perhydro-N-propylcarbazole
Feng et al. Applications of rare earth oxides in catalytic ammonia synthesis and decomposition
Feng et al. Copper oxide hollow spheres: synthesis and catalytic application in hydrolytic dehydrogenation of ammonia borane
CN112264078A (en) Modified boron nitride supported metal catalyst and preparation method and application thereof
CN106861689B (en) Pd-based catalyst and preparation and application thereof
US5053379A (en) High-activity nickel catalyst and process for preparation thereof
Cheng et al. Application of metal-organic frameworks in CO2 hydrogenation
Tian et al. Advances in hydrogen production by aqueous phase reforming of biomass oxygenated derivatives
Xie et al. Effect of oxygen vacancy influenced by CeO2 morphology on the methanol catalytic reforming for hydrogen production
CN109876804A (en) A kind of titanium dioxide loaded ruthenium catalyst and preparation method thereof adding hydrogen cyclohexene for benzene selective
Wu et al. Engineering of the Cu+/Cu0 interface by chitosan-glucose complex for aqueous phase reforming of methanol into hydrogen
AU2020362824A1 (en) Catalyst for dehydrogenation of cycloalkanes, preparation method therefor and application thereof
Liu et al. N-doped porous carbon-anchored Pd nanoparticles: a highly efficient catalyst for Fe (II) EDTA-NO reduction
CN114733530B (en) Hydrogenation catalyst of organic liquid hydrogen storage carrier, and preparation method and application thereof
CN116060035A (en) Solid reverse phase catalyst, preparation method thereof and application of solid reverse phase catalyst in catalyzing methanation of low-temperature carbon dioxide
CN110052261A (en) A kind of catalysis carbon dioxide selectivity prepares solid catalyst and the application of methanol and carbon monoxide
CN107497490B (en) Preparation method of metal organic gel loaded CdS catalyst and application of catalyst in hydrogen production through photolysis of water

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20200508