Carbon-based catalyst with function of catalyzing hydrogen-poor synthetic gas to prepare low-carbon hydrocarbon, preparation method and application of carbon-based catalyst and method for preparing low-carbon hydrocarbon

A carbon-based catalyst, catalyst technology, applied in the direction of carbon compound catalyst, catalyst activation/preparation, metal/metal oxide/metal hydroxide catalyst, etc. , the effect of high CO conversion

Pending Publication Date: 2021-12-31
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Moreover, the H in the syngas used in actual production 2 The ratio of / CO is often lower than the ideal ratio of 2 / 1, which further reduces the yield of low-carbon hydrocarbons

Method used

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  • Carbon-based catalyst with function of catalyzing hydrogen-poor synthetic gas to prepare low-carbon hydrocarbon, preparation method and application of carbon-based catalyst and method for preparing low-carbon hydrocarbon
  • Carbon-based catalyst with function of catalyzing hydrogen-poor synthetic gas to prepare low-carbon hydrocarbon, preparation method and application of carbon-based catalyst and method for preparing low-carbon hydrocarbon
  • Carbon-based catalyst with function of catalyzing hydrogen-poor synthetic gas to prepare low-carbon hydrocarbon, preparation method and application of carbon-based catalyst and method for preparing low-carbon hydrocarbon

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] (1) Select the Cu (NO 3 ) 2 And Ce (NO 3 ) 2 As a precursor, which is formulated as an aqueous solution. The metal elemental basis, based on the weight of activated carbon as a reference, according to the load amount of Cu and Ce are 5 wt% of the proportion which is supported on activated carbon, dried 2h 60 ℃. To obtain a catalyst A1.

[0065] (2) Select the Fe (NO 3 ) 3 And Mn (NO 3 ) 2 As a precursor, which is formulated as an aqueous solution. The metal elemental basis, based on the weight of activated carbon as a reference, according to the loading of both Fe and Mn ratio of 5% by weight of its load onto activated carbon, dried 2h 60 ℃. To obtain a catalyst B1.

[0066] (3) The catalyst catalyst A1 and B1 at a mass ratio of 1: 1 were mixed to obtain a catalyst. figure 1 Characterizing the morphology of its image can be seen from the active component supported on a porous activated carbon support surface.

Embodiment 2

[0068] (1) Select the Cu (NO 3 ) 2 And Zn (NO 3 ) 2 As a precursor, which is formulated as an aqueous solution. The metal elemental basis, based on the weight of activated carbon as a reference, according to the load amount of Cu and Zn are 5 wt% of the proportion which is supported on activated carbon, dried 2h 60 ℃. To obtain a catalyst A2.

[0069] (2) Select the Fe (NO 3 ) 3 And Mn (NO 3 ) 2 As a precursor, which is formulated as an aqueous solution. The metal elemental basis, based on the weight of activated carbon as a reference, according to the loading of both Fe and Mn ratio of 5% by weight of its load onto activated carbon, dried 2h 60 ℃. To obtain a catalyst B2.

[0070] (3) catalyst A2 and catalyst B2 a mass ratio of 1: 1 were mixed to obtain a catalyst 2.

Embodiment 3

[0072] (1) Select the Cu (NO 3 ) 2 And Ce (NO 3 ) 2 As a precursor, which is formulated as an aqueous solution. The metal elemental basis, based on the weight of activated carbon as a reference, according to the load amount of Cu and Ce are 5 wt% of the proportion which is supported on activated carbon, 60 deg.] C after drying 2h. To obtain a catalyst A3.

[0073] (2) Select the Fe (NO 3 ) 3 And La (NO 3 ) 3 As a precursor, which is formulated as an aqueous solution. The metal elemental basis, based on the weight of activated carbon as a reference, in accordance with Fe and La are load ratio of 5% by weight of its load onto activated carbon, dried 2h 60 ℃. To obtain a catalyst B3.

[0074] (3) the catalyst A3 and B3 at a mass ratio of catalyst 1: 1 mixture, 3 to obtain a catalyst.

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Abstract

The invention relates to the field of catalysts, and discloses a carbon-based catalyst with a function of catalyzing hydrogen-poor synthetic gas to prepare low-carbon hydrocarbon. The catalyst comprises a catalyst A and a catalyst B. The catalyst A comprises activated carbon and an active component A loaded on the activated carbon, and the active component A comprises at least one of Cu, Zn and Ce. The catalyst B comprises activated carbon and an active component B loaded on the activated carbon, and the active component B comprises at least one of Fe, Mn, K and La. The weight ratio of the catalyst A to the catalyst B is 1: (0.5-10). The catalyst provided by the invention is low in preparation cost. A good catalytic effect can be obtained in production of low-carbon hydrocarbon from synthetic gas by using the method provided by the invention. The method has the advantages of high CO conversion rate and high product selectivity, and is particularly suitable for reaction for directly preparing low-carbon hydrocarbon from synthetic gas or industrial waste gas with relatively low H2 content.

Description

Technical field [0001] The present invention relates to a catalyst synthesis gas of light hydrocarbons, in particular, the carbon-based catalyst and its preparation and application process for the preparation of light hydrocarbons and the catalytic hydrogen-depleted synthesis gas is directed to the preparation of light hydrocarbons having a function. Background technique [0002] Synthesis gas with a wide range of sources of raw materials, and develop efficient synthesis from Syngas hydrocarbon process for future economic growth in petrochemical field provides important technical support. Ideal synthesis gas to olefins relying on low temperature Fischer-Tropsch reaction. [0003] At present, the low temperature Fischer-Tropsch reaction of the carbon-based catalyst is a Fe-based catalyst directly applied to the preparation of light hydrocarbons in a catalyst synthesis gas, however, when used in actual production, usually required in the feed gas CO wherein firstly Fe reduction of ...

Claims

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Application Information

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IPC IPC(8): B01J23/83B01J23/889B01J37/02B01J37/18C07C1/04C07C11/02C07C11/04C07C11/06C07C11/08C07C11/09
CPCB01J23/83B01J23/8892B01J37/0201B01J37/18C07C1/044C07C2523/83C07C2523/889B01J35/19C07C11/02C07C11/04C07C11/06C07C11/08C07C11/09Y02P20/52
Inventor冯英杰冯静白杰
OwnerCHINA PETROLEUM & CHEM CORP