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Hydrothermal Preparation of Jet Oil from Algae Oil Catalyzed by Ni-based Sulfonated Zeolite Organic Framework

An organic framework and sulfonated zeolite technology, which is applied in chemical instruments and methods, organic compound/hydride/coordination complex catalysts, physical/chemical process catalysts, etc. Solve problems such as sintering and reduce catalyst life, achieve the effect of improving hydrothermal stability and anti-poisoning ability, maintaining structural integrity, and facilitating storage and transportation

Active Publication Date: 2020-05-12
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Larger Ni nanoparticle clusters limit the activity of nickel atoms inside them to participate in the reaction. Under high temperature and high pressure reaction conditions, Ni particles are prone to sintering, which reduces the catalyst life and affects the catalytic effect of the regenerated catalyst.

Method used

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  • Hydrothermal Preparation of Jet Oil from Algae Oil Catalyzed by Ni-based Sulfonated Zeolite Organic Framework
  • Hydrothermal Preparation of Jet Oil from Algae Oil Catalyzed by Ni-based Sulfonated Zeolite Organic Framework

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] 0.72gCo(NO 3 ) 2 ·6H 2 O and 1.63g dimethylimidazole were dissolved in 50mL methanol respectively, and the two solutions were stirred with a magnetic stirrer at 100rpm for 2min, and then the Co(NO 3 ) 2 ·6H 2 O methanol solution was poured into dimethylimidazole methanol solution, and the mixed solution was placed in an ultrasonic oscillator and mixed for 30 min. After the solution is fully reacted, use a high-speed refrigerated centrifuge to centrifuge to synthesize the zeolite imidazole metal framework.

[0030] Add 0.5 g of zeolite imidazole metal skeleton and 10 mL of toluene into a three-necked flask, place in an oil bath and raise the temperature to 90° C., and stir for 0.5 h under a nitrogen atmosphere. Then 0.1 mL of 3-mercaptopropyltrimethoxysilane was weighed and added to the above mixed solution, and the stirring was continued for 12 h. Then the mixture was suction filtered, washed once with ethanol, and dried in an oven at 50 °C for 4 h. Weigh the mas...

Embodiment 2

[0034] 7.2gCo(NO 3 ) 2 ·6H 2O and 16.3g dimethylimidazole were dissolved in 500mL methanol respectively, and the two solutions were stirred with a magnetic stirrer at a speed of 500rpm for 20min, and then the Co(NO 3 ) 2 ·6H 2 O methanol solution was poured into dimethylimidazole methanol solution, and the mixed solution was placed in an ultrasonic oscillator and mixed for 30 min. After the solution is fully reacted, use a high-speed refrigerated centrifuge to centrifuge to synthesize the zeolite imidazole metal framework.

[0035] Add 5 g of zeolite imidazole metal skeleton and 100 mL of toluene into a three-neck flask, place in an oil bath and raise the temperature to 120° C., and stir for 2 h under a nitrogen atmosphere. Then 4 mL of 3-mercaptopropyltrimethoxysilane was weighed and added to the above mixed solution, and the stirring was continued for 48 h. Then the mixture was suction-filtered, washed with ethanol for 5 times, and dried in an oven at 90°C for 10 h. W...

Embodiment 3

[0039] 3.6gCo(NO 3 ) 2 ·6H 2 O and 8.15g dimethylimidazole were respectively dissolved in 250mL methanol, and the two solutions were stirred with a magnetic stirrer at 300rpm for 10min, and then the Co(NO 3 ) 2 ·6H 2 O methanol solution was poured into dimethylimidazole methanol solution, and the mixed solution was placed in an ultrasonic oscillator and mixed for 30 min. After the solution is fully reacted, use a high-speed refrigerated centrifuge to centrifuge to synthesize the zeolite imidazole metal framework.

[0040] Add 2.5 g of zeolite imidazole metal skeleton and 50 mL of toluene into a three-necked flask, place in an oil bath and raise the temperature to 100° C., and stir for 1 h under a nitrogen atmosphere. Then 2 mL of 3-mercaptopropyltrimethoxysilane was weighed and added to the above mixed solution, and the stirring was continued for 24 h. Then the mixture was suction-filtered, washed with ethanol for 3 times, and dried in an oven at 70 °C for 6 h. Weigh th...

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Abstract

The invention relates to a biomass energy utilization technology, and aims to provide a method for catalyzing a hydrothermal reaction of algae oil by a nickel-based sulfonated zeolite organic skeletonto prepare aviation oil. The method comprises the following steps: pouring a Co(NO3)2.6H2O methanol solution into a dimethylimidazole methanol solution, performing an ultrasonic oscillation reaction,and performing centrifugation treatment; performing sulfonation treatment on the prepared zeolite imidazole metal skeleton, and performing a reaction on the sulfonated product, Ni(NO3)2.6H2O and trimesic acid at 120-180 DEG C; performing filtration to obtain a solid, performing washing, and performing drying; and reacting the obtained nickel-based sulfonated zeolite organic skeleton used as a catalyst with the oil obtained by sub-critical hydrothermal extraction of microalgae to prepare the aviation oil fuel. According to the method provided by the invention, the zeolitic imidazole skeleton provides a uniform pore size, the sulfonic acid groups provide a sufficient amount of acidic active sites used for carbon-carbon bond cleavage, the Ni-trimellitic acid metal organic framework structuredisperses metal active sites into a mesoporous structure in the form of atoms, so that sintering at high temperatures is avoided; and the hydrothermal stability and deactivation resistant ability ofthe catalyst are obviously improved, the service life of the catalyst can be prolonged, and the regenerated catalyst still shows high activity.

Description

technical field [0001] The invention relates to biomass energy utilization technology, in particular to a method for hydrothermally producing aviation oil from algae oil catalyzed by a nickel-based sulfonated zeolite organic framework. Background technique [0002] Microalgae has unique advantages such as abundant biomass and high growth rate, so the technology of converting microalgae biomass to liquid fuels has attracted widespread attention. Traditional conversion methods can only use lipids in microalgae, while thermochemical conversion methods can convert the entire algae biomass, including proteins, into liquid oils. Among thermochemical conversion pathways, hydrothermal liquefaction is one of the most promising approaches. Hydrothermal liquefaction can use wet algae biomass, thus avoiding the traditional drying step, thereby reducing the energy consumption of microalgae biomass conversion to bio-oil. However, the quality characteristics of biocrude oil obtained by d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J31/16C10G3/00
CPCB01J31/1691C10G3/45Y02P20/52Y02P30/20
Inventor 程军杨卫娟岑可法周俊虎刘建忠王智化张彦威周志军何勇
Owner ZHEJIANG UNIV
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