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Mesoporous material and preparation method thereof as well as catalyst and preparation method thereof

A technology of mesoporous materials and catalysts, applied in the field of organic chemical synthesis, can solve the problems of difficulty in adjusting the selectivity of higher alcohols, unsatisfactory catalyst performance, improved catalyst performance, etc., and achieves regular structure, stable structure and good thermal stability. sexual effect

Inactive Publication Date: 2014-02-26
YANTAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The performance of the catalyst prepared by the co-precipitation method is not satisfactory, for example, the specific surface area is small, resulting in low activity of the catalyst; the pore size distribution is relatively dispersed, and it is difficult to adjust the selectivity of higher alcohols
Due to the limitations of the preparation method itself, it is difficult to significantly improve the performance of the catalyst by the co-precipitation method, and a new catalyst preparation method must be sought

Method used

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  • Mesoporous material and preparation method thereof as well as catalyst and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Weigh Cu(NO 3 ) 2 ·3H 2 O 6.06g, Co(NO 3 ) 2 ·6H 2 O 0.04g, ZrOCl 2 ·8H 2 O20.91g, miscible in 200mL deionized water; Weigh 1g trimethylhexadecylammonium bromide and dissolve it in 100mL deionized water, then mix the two solutions under vigorous stirring, adjust the pH value with 1M NaOH aqueous solution Adjust to 8.5 and continue stirring for 60 minutes. The resulting slurry material was transferred to a 400mL stainless steel synthesis kettle and heated to 120°C to continue the reaction for 100 hours. After the reaction was completed, it was cooled to room temperature, and the material was discharged and washed several times with a centrifuge. The filter cake was dried at room temperature, and then Roast in a tube furnace at 550°C for 3 hours in an air atmosphere to obtain a solid substance whose specific surface area is 320m2 as measured by nitrogen adsorption method (BET method). 2 / g, XRD method measures that it has a mesoporous structure, indicating that th...

Embodiment 2

[0036] Weigh Cu(NO 3 ) 2 ·3H 2 O 6.06g, Co(NO 3 ) 2 ·6H 2 O 0.04g, ZrOCl 2 ·8H 2 O20.91g, miscible in 135mL deionized water; Weigh 1g trimethylhexadecylammonium bromide and dissolve it in 75mL deionized water, then mix the two solutions under vigorous stirring, adjust the pH value with 1M NaOH aqueous solution Adjust to 8.0 and continue stirring for 60 minutes. The resulting slurry material was transferred to a 400mL stainless steel synthesis kettle and heated to 150°C to continue the reaction for 100 hours. After the reaction was completed, it was cooled to room temperature, and the material was discharged and washed several times with a centrifuge. The filter cake was dried at room temperature, and then Roasting in a tube furnace at 500°C for 5 hours in an air atmosphere, a solid substance was obtained, and its specific surface area was measured by nitrogen adsorption method (BET method) to be 315m 2 / g, XRD method measures that it has a mesoporous structure, indicat...

Embodiment 3

[0039] Weigh Cu(NO 3 ) 2 ·3H 2 O 0.03g, Co(NO 3 ) 2 ·6H 2 O 0.08g, ZrOCl 2 ·8H 2 O26.08g, miscible in 260mL deionized water; weigh 2g sodium dodecanoate and dissolve in 100mL deionized water, then mix the two solutions under vigorous stirring, adjust the pH value to 6.0 with 1M NaOH aqueous solution, and continue stirring 60 minutes. Transfer the generated slurry material to a 400mL stainless steel synthesis kettle and heat up to 200°C to continue the reaction for 50 hours. After the reaction is completed, cool to room temperature, discharge the material and wash it several times with a centrifuge. The filter cake is dried at room temperature, and then Roasting in a tube furnace at 450°C for 10 hours in an air atmosphere, a solid substance was obtained, and its specific surface area was measured by nitrogen adsorption method (BET method) to be 307m 2 / g, XRD method measures that it has a mesoporous structure, indicating that the prepared material is the mesoporous mate...

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Abstract

The invention relates to a mesoporous material and a preparation method thereof. The mesoporous material comprises the following materials in percentage by weight: 1-20 percent of CuO, 1-20 percent of CoO and 60-98 percent of ZrO. The mesoporous material disclosed by the invention has the advantages of excellent thermal stability, greater specific surface area, regular structure and more active points. The invention also relates to a catalyst taking the mesoporous material as a carrier and a preparation method of the catalyst. The catalyst comprises the following raw materials in percentage by weight: 20-70 percent of CuO, 15-70 percent of CoO, 4-30 percent of ZnO, 5-55 percent of ZrO2 and 0.2-5 percent of MXO, wherein M is an alkali metal or alkaline-earth metal. The catalyst disclosed by the invention has the advantages of great surface area, stable structure and excellent catalytic activity.

Description

technical field [0001] The present invention relates to a kind of mesoporous material and its preparation method and catalyst and its preparation method, especially a kind of mesoporous material Cu-Co-Zr0 2 The preparation method thereof and the catalyst for synthesizing low-carbon alcohol and the preparation method thereof belong to the technical field of organic chemical synthesis. Background technique [0002] From the perspective of resource utilization and environmental protection, using high-efficiency coal clean resource technology to develop "green fuel" has important strategic significance and application prospects. Catalytic hydrogenation of CO to synthesize low-carbon mixed alcohols (C1-C6 mixed alcohols) is one of the important ways for the clean utilization of coal resources. The application prospect of low-carbon mixed alcohols depends on the development of catalysts with excellent performance. Patent CN1428192 discloses a catalyst for synthesizing low-carbon...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J32/00B01J23/75B01J35/10B01J23/80C07C29/156C07C31/02
Inventor 房德仁姜雪梅张慧敏
Owner YANTAI UNIV