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Catalyst for coproduction of mixed alcohols and alpha-olefin through synthesis gas one-step method and preparing method and application thereof

A catalyst and synthesis gas technology, which is applied in the field of catalysts and preparations for the one-step co-production of mixed alcohols and α-olefins in synthesis gas, and can solve the problems of failure to realize industrialization, activity, selectivity, stability and unsatisfactory economy. , to achieve strong industrial application prospects, good stability and high economic benefits

Active Publication Date: 2017-01-04
SHANGHAI ADVANCED RES INST CHINESE ACADEMY OF SCI +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these traditional catalytic systems are not ideal in terms of activity, selectivity, stability, and economy, so that this route has not been industrialized

Method used

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  • Catalyst for coproduction of mixed alcohols and alpha-olefin through synthesis gas one-step method and preparing method and application thereof
  • Catalyst for coproduction of mixed alcohols and alpha-olefin through synthesis gas one-step method and preparing method and application thereof
  • Catalyst for coproduction of mixed alcohols and alpha-olefin through synthesis gas one-step method and preparing method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] 50%Mn(NO 3 ) 2 Aqueous solution and Co(NO 3 ) 2 ·6H 2 O is dissolved in a certain amount of deionized water according to the molar ratio Co / Mn=3 / 1 to form a mixed solution with a total metal concentration of 2mol / L, and then dissolve sodium carbonate in a certain amount of deionized water to form a concentration of 2mol / L L lye. The titration temperature was adjusted to 40° C., the titration pH was controlled to be 8, and the above two solutions were co-precipitated in a co-current manner. After the titration, it was aged at 40°C for 4 hours, centrifuged and washed until the pH was neutral, and then dried in an oven at 100°C for 12 hours. Then, sodium carbonate was used as the metal salt precursor of the impregnating solution, and an equal volume of 1 wt% sodium was used to impregnate (Referring to the percentage of M1 accounting for the total mass of the catalyst, the following examples are the same, that is, M1 is sodium, accounting for 1wt% of the total mass of ...

Embodiment 2

[0065] 50%Mn(NO 3 ) 2 Aqueous solution and Co(NO 3 ) 2 ·6H 2 O is dissolved in a certain amount of deionized water according to the molar ratio Co / Mn=3 / 1 to form a mixed solution with a total metal concentration of 2mol / L, and then dissolve sodium carbonate in a certain amount of deionized water to form a concentration of 2mol / L L lye. The titration temperature was adjusted to 40° C., the titration pH was controlled to be 8, and the above two solutions were co-precipitated in a co-current manner. After the titration, it was aged at 40°C for 4 hours, centrifuged and washed until the pH was neutral, and then dried in an oven at 100°C for 12 hours. Then, potassium carbonate was used as the metal salt precursor of the impregnating solution, and an equal volume of 1 wt% potassium was impregnated. , after being air-dried, place it in an oven at 120°C for drying, and finally transfer to a muffle furnace and heat up to 400°C for 5 hours of roasting. The catalyst is obtained afte...

Embodiment 3

[0068] 50%Mn(NO 3 ) 2 Aqueous solution and Co(NO 3 ) 2 ·6H 2 O is dissolved in a certain amount of deionized water according to the molar ratio Co / Mn=3 / 1 to form a mixed solution with a total metal concentration of 0.5mol / L, and then dissolve sodium carbonate in a certain amount of deionized water to form a concentration of 0.5 mol / L lye. The titration temperature was adjusted to 65° C., the titration pH was controlled to be 8, and the above two solutions were co-precipitated in a co-current manner. After the titration, it was aged at 65°C for 6 hours, centrifuged and washed until the pH was neutral, and then dried in an oven at 100°C for 12 hours. Then, sodium carbonate was used as the metal salt precursor of the impregnation solution, and an equal volume of 1 wt% sodium was used to impregnate , after being air-dried, place it in an oven at 120°C for drying, and finally transfer to a muffle furnace and heat up to 400°C for 5 hours of roasting. The catalyst is obtained a...

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Abstract

The invention provides a catalyst for coproduction of mixed alcohols and alpha-olefin through a synthesis gas one-step method and a preparing method and application thereof. The catalyst is prepared from Co3O4, stable oxide of M1 and stable oxide of M2, wherein Co, M1 and M2 account for 10-60%, 0-5% and 10-60% of the total mass of the catalyst, M1 is selected from one or more of Li, Na, K, Rb and Cs, and M2 is selected from one or more of Mg, Ca, Zn, Al, Zr, Mn, La and Ce. The active component of the catalyst for coproduction of mixed alcohols and alpha-olefin through the synthesis gas one-step method is obtained for reduction activation and carbonization, and the active component is Co2C nano particles. The preparing method is simple, the obtained catalyst is high in stability, the carbon number selectivity of mixed alcohols and alpha-olefin in the synthesis gas one-step method for coproduction of mixed alcohols and alpha-olefin is high, and the methane selectivity is low.

Description

technical field [0001] The invention relates to the technical field of catalysts, in particular to a catalyst for the one-step co-production of mixed alcohols and α-olefins in syngas, as well as its preparation method and application. Background technique [0002] In recent years, with the increasing scarcity of global oil resources, coal and natural gas will gradually replace oil as the main form of energy supply in the future. my country is a developing country rich in coal, less oil and more gas. Increasing the proportion of coal mines and natural gas in my country's energy structure will be conducive to the healthy and sustainable development of my country's national economy, and is an important strategic measure to ensure my country's energy security. At present, my country's energy and environmental problems are prominent, and energy utilization is low. Improving the clean and efficient utilization of coal and the high value-added productization of natural gas is an im...

Claims

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Application Information

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IPC IPC(8): B01J23/889B01J27/22C07C1/04C07C11/02C07C29/156C07C31/02
CPCB01J23/8892B01J27/22C07C1/0435C07C29/156C07C2523/889C07C2527/22C07C11/02C07C31/02
Inventor 孙予罕林铁军钟良枢于飞齐行振卢卫民李克健李晋平肖亚宁刘斌
Owner SHANGHAI ADVANCED RES INST CHINESE ACADEMY OF SCI
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