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Catalyst for preparing plasticizer alcohol from synthesis gas as well as preparation method and application of catalyst

A catalyst and synthesis gas technology, which is applied in the field of synthesis gas to higher alcohols, can solve the problems of many by-products, low alcohol selectivity, poor catalyst stability, etc., and achieves the effects of convenient operation, convenient particle size control, and mild reaction conditions.

Active Publication Date: 2022-03-25
SHANXI INST OF COAL CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current high-carbon alcohol catalysts for syngas production still have problems such as poor catalyst stability; low alcohol selectivity and many by-products; low alcohol content of high-carbon plasticizers, limited by ASF distribution, wide distribution, etc.

Method used

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  • Catalyst for preparing plasticizer alcohol from synthesis gas as well as preparation method and application of catalyst
  • Catalyst for preparing plasticizer alcohol from synthesis gas as well as preparation method and application of catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] (1) According to the catalyst composition, 2.62g Cu(acac) 2 (copper acetylacetonate), 10.68g Co(acac) 3 (Cobalt acetylacetonate) was dissolved in 100mL oleylamine and 50mL oleic acid and stirred evenly, heated the mixture to 220°C for 120min under reflux, then set the temperature to 200°C for 120min; after cooling to room temperature, added methanol and centrifuged After that, get Cu 1 m 1 nanoparticles.

[0029] (2) Add Cu in the above (1) 1 m 1 Nanoparticles were dispersed with chloroform; weighed 1g of cetyltrimethylammonium bromide CTAB dissolved in 100mL of water, and then added to Cu 1 m 1 In the nanoparticle chloroform dispersion, after ultrasonic vibration for 10 minutes, stir at 65°C to completely volatilize the chloroform.

[0030] (3) Add 100mL of deionized water and 3g of polyvinylpyrrolidone (PVP) to the above (2) particle suspension or water-soluble particles and stir, then add 100mL of methanol to obtain A solution; according to the catalyst compos...

Embodiment 2

[0033] (1) According to the catalyst composition, 2.62g Cu(acac) 2 (copper acetylacetonate), 10.59g Fe(acac) 3 Dissolve in 100mL oleylamine and 100mL oleic acid and stir evenly, heat the mixture to 230°C for 60min under reflux, then set the temperature to 210°C for 60min; after cooling to room temperature, add ethanol and centrifuge to obtain Cu 1 m 1 nanoparticles.

[0034] (2) Add Cu in the above (1) 1 m 1 Nanoparticles were dispersed with chloroform; weighed 2g cetyltrimethylammonium bromide CTAB dissolved in 100mL water, then added to Cu 1 m 1 In the nanoparticle chloroform dispersion, after ultrasonic vibration for 10 minutes, stir at 65°C to completely volatilize the chloroform.

[0035] (3) Add 100mL of deionized water and 1g of polyvinylpyrrolidone (PVP) to the above (2) particle suspension or water-soluble particles and stir, then add 100mL of ethanol to obtain A solution; according to the catalyst composition, 7.26g of Cu(NO 3 ) 2 ·3H 2 O, 2.91g Co(NO 3 ) ...

Embodiment 3

[0038] (1) According to the catalyst composition, 5.24g Cu(acac) 2 (copper acetylacetonate), 14.12g Fe(acac) 3 Dissolve in 300mL oleylamine and 100mL oleic acid and stir evenly, heat the mixture to 250°C for 60min under reflux, then set the temperature to 220°C for 90min; add ethanol after cooling to room temperature and centrifuge to obtain Cu 1 m 1 nanoparticles.

[0039] (2) Add Cu in the above (1) 1 m 1 Nanoparticles were dispersed with chloroform; 6g Tween 20 was weighed and dissolved in 200mL water, then added to Cu 1 m 1 In the nanoparticle chloroform dispersion, after ultrasonic vibration for 10 minutes, stir at 65°C to completely volatilize the chloroform.

[0040] (3) Add 200mL of deionized water and 2g of polyvinylpyrrolidone (PVP) to the above (2) particle suspension or water-soluble particles and stir, then add 300mL of ethanol to obtain A solution; according to the catalyst composition, 4.84g of Cu(NO 3 ) 2 ·3H 2 O, 5.82g Co(NO 3 ) 2 ·6H 2 O, 8.58g Zr...

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Abstract

The invention relates to the field of preparation of high-carbon alcohol from synthesis gas, in particular to a catalyst for preparation of plasticizer alcohol from synthesis gas as well as a preparation method and application of the catalyst. The invention relates to a catalyst for preparing plasticizer alcohol from synthesis gas, the catalyst is a Cu2M2S confined Cu1M1 structure with an outer layer Cu2M2S and an inner layer Cu1M1, Cu1 and Cu2 represent Cu elements from different Cu precursors, M1 is one or more of Co, Fe and Mn, M2 is one or more of Co, Fe, Mn, Zn and Ni, and S is one or more of Si, Al, Ga, Zr, Ti, Ce and La; the molar ratio of M < 1 > to Cu < 1 > is (0.5-50): 1, and the molar ratio of S / M < 2 > to Cu < 2 > is (0.01-50): (0.01-30): 1; and the Cu1M1 accounts for 5-95% of the total amount of the catalyst in percentage by mass, and the particle size of the Cu1M1 is 1-50 nm. The invention also relates to a preparation method and application of the catalyst.

Description

technical field [0001] The invention relates to the field of producing high-carbon alcohols from synthesis gas, in particular to a catalyst for producing plasticizer alcohol from synthesis gas, its preparation method and application. [0002] technical background [0003] High-carbon alcohols, also known as high-carbon fatty alcohols, generally refer to monohydric alcohols with more than 6 carbon atoms. According to the use and carbon chain length, C6-C12 saturated fatty alcohol is mainly used in the production of plasticizers, also known as plasticizer alcohols. The high-carbon alcohol ester of the plasticizer has good compatibility with the resin, good flexibility, can change the processing performance of plastic products, make the product have a good appearance, smooth surface, the plasticizer is not easy to separate out, the product is not easy to break, reduce pollution, and can improve the plasticity. The heat resistance of vinyl chloride (PVC) prolongs the service lif...

Claims

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Application Information

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IPC IPC(8): B01J23/75B01J23/889C07C29/156C07C31/125
CPCB01J23/75B01J23/8892C07C29/156B01J35/399C07C31/125Y02P20/52
Inventor 房克功张明伟祝灿黄潮
Owner SHANXI INST OF COAL CHEM CHINESE ACAD OF SCI
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