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Loaded catalyst, preparation and use thereof

A supported catalyst and catalyst technology, applied in the direction of molecular sieve catalysts, physical/chemical process catalysts, chemical instruments and methods, etc., can solve the problems of high reaction temperature, low yield of aromatics, low methane conversion rate, etc., to achieve easy operation, The effect of simple preparation method

Inactive Publication Date: 2007-07-25
EAST CHINA NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In summary, the disadvantages of the background technology are that the reaction temperature is too high, the methane conversion rate is low, and the yield of aromatics is also low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] CuSO containing 0.015g Cu element 4 .5H 2 O, completely dissolved in 5g of deionized water, added ammonium molybdate containing 0.15g of Mo element, after mixing, impregnated the solution on 3g of HZSM-5 molecular sieve carrier, the atomic ratio of Si / Al in HZSM-5 = 15,60 Stir at ℃ for 5h, stir at 80℃ and dry directly, and then bake at 400℃ for 4h to prepare supported CuO-MoO Y / HZSM-5 molecular sieve catalyst, wherein, element A is Cu element, and the content of HZSM-5 molecular sieve is 100 parts by weight, the content of Cu element is 0.5 parts by weight, and the content of Mo element is 5 parts by weight.

Embodiment 2

[0026] Ce(NO 3 ) 3 .6H 2 O was completely dissolved in 10g of deionized water, and ammonium molybdate containing 0.06g of Mo was added. After mixing, the solution was impregnated on 3g of HZSM-5 molecular sieve carrier. The atomic ratio of Si / Al in HZSM-5 was 38,80 Stir for 8 h at 100 °C, dry directly at 100 °C, and then roast at 550 °C for 6 h to prepare the supported Ce 2 o 3 -MoO Y / HZSM-5 molecular sieve catalyst, wherein, element A is Ce element, the content of Ce element is 1 part by weight, and the content of Mo element is 2 parts by weight based on 100 parts by weight of HZSM-5 molecular sieve.

Embodiment 3

[0028] Cr(NO) containing 0.09g Cr element 3 ) 3 .9H 2 Dissolve O completely in 50g deionized water, add ammonium molybdate containing 0.015g Mo element, mix well and impregnate the solution on 3g HZSM-5 molecular sieve carrier, Si / Al atomic ratio in HZSM-5=60, 100℃ Stirring for 10 hours at 120°C, drying directly at 120°C, and then roasting at 650°C for 8 hours to prepare the supported Cr 2 o 3 -MoO Y / HZSM-5 molecular sieve catalyst, wherein, element A is Cr element, the content of Cr element is 3 parts by weight, and the content of Mo element is 0.5 part by weight based on 100 parts by weight of HZSM-5 molecular sieve.

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PUM

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Abstract

A carried catalyst AOx-MoOy / HZSM-5 for activating methane to synthesize high-carbon hydrocarbon compound is prepared through dissolving the A contained salt of oxo acid, adding ammonium molybdate, stirring, immersing HZSM-5 molecular sieve in it, stirring, baking and calcining.

Description

technical field [0001] The invention relates to a supported catalyst and its preparation and application, and belongs to the technical field of chemical catalysts and its preparation and application. Background technique [0002] With the decrease of petroleum resources, the research of converting abundant natural gas resources into high value-added benzene, toluene, xylene (BTX) has attracted people's attention. Methane is the main component of natural gas. my country's proven natural gas reserves are 124 trillion m 3 , accounting for the 22nd place in the world's natural gas reserves. Since methane is one of the most stable hydrocarbon molecules, the activation of methane and ultimately the effective utilization of natural gas is an extremely serious challenge to catalysis science. The direct conversion of methane under non-oxidative conditions has the characteristics of high selectivity, low technical complexity, and easy separation of products. However, from a thermod...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J29/48
Inventor 单永奎张丽戴成勇蔡清海顾颖颖
Owner EAST CHINA NORMAL UNIV