Catalyst applicable to synthesis-gas preparation by catalytic reforming of shale gas and carbon dioxide and preparation method thereof

A catalytic reforming and catalyst technology, applied in metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, chemical instruments and methods, etc., to improve adsorption, accelerate dissociation and conversion, and improve catalytic active effect

Active Publication Date: 2018-06-12
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the above-mentioned patents are prepared by mixing the existing materials with the carrier material and the active material by means of impregnation, which cannot change the inherent characteristics of the original carrier material, such as pore structure, specific surface area, etc.

Method used

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  • Catalyst applicable to synthesis-gas preparation by catalytic reforming of shale gas and carbon dioxide and preparation method thereof
  • Catalyst applicable to synthesis-gas preparation by catalytic reforming of shale gas and carbon dioxide and preparation method thereof
  • Catalyst applicable to synthesis-gas preparation by catalytic reforming of shale gas and carbon dioxide and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Measure 140mL of absolute ethanol and pour it into a beaker, measure 30.7mL of butyl titanate and slowly pour it into absolute ethanol, and continue stirring at a medium speed on a magnetic stirrer; during the above stirring process, measure 3mL of ice Add acetic acid drop by drop, and continue to stir to form a transparent solution A; weigh 2.5g of nickel nitrate hexahydrate, 1.6g of cerium nitrate hexahydrate, and 12.8g of magnesium nitrate hexahydrate, mix and dissolve in 20mL deionized water, and place on a magnetic stirrer at high speed Stir; add 2mL dilute nitric acid drop by drop with a dropper during the above stirring process and continue to stir to make solution B; slowly pour B solution into A solution during the stirring process, and after stirring at high speed for 15min, a brown gel is formed, and then Leave to age in a water bath at a constant temperature of 60°C for 2 hours; dry in a drying oven at 110°C for 24 hours. Grind into large particles after dry...

Embodiment 2

[0043] Measure 140mL of absolute ethanol and pour it into a beaker, measure 30mL of butyl titanate and slowly pour it into absolute ethanol, and continue stirring at a medium speed on a magnetic stirrer; measure 3mL of glacial acetic acid with a dropper during the above stirring process Add drop by drop, and continue to stir to form a transparent solution A; weigh 4.5g of nickel nitrate hexahydrate, 0.93g of cerium nitrate hexahydrate, and 18g of magnesium nitrate hexahydrate, mix and dissolve in 20mL deionized water, and stir at high speed on a magnetic stirrer; During the above stirring process, add 2 mL of dilute nitric acid drop by drop with a dropper and continue stirring to form solution B; slowly pour solution B into solution A during the stirring process, and after stirring at high speed for 15 minutes, a brown gel is formed; Stand for aging at a constant temperature of 60°C for 2 hours; dry in a drying oven at 110°C for 24 hours. Grind into large particles after dryin...

Embodiment 3

[0047] Weigh 2.5g of nickel nitrate hexahydrate, 1.6g of cerium nitrate hexahydrate, 12.8g of magnesium nitrate hexahydrate, 32g of aluminum nitrate nonahydrate, mix and dissolve in 70mL deionized water, place on a magnetic stirrer and stir at high speed to form solution A; Take 22.2g of sodium hydroxide, dissolve it in 70mL of deionized water, and stir at high speed on a magnetic stirrer to form solution B; during the process of high-speed stirring, add solution B to solution A drop by drop with a dropper until the precipitation is complete. The precipitate was washed and filtered until the filtrate was neutral. The precipitate was dried in a drying oven at 110 °C for 24 h. Grind into large particles after drying; put the ground large particles into a muffle furnace for calcination at 700°C for 3 hours, and after the temperature drops to room temperature, take out the catalyst particles that are ground and sieved to the required particle size. The catalyst is called Ni-Ce-Mg...

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Abstract

The invention discloses a catalyst applicable to synthesis-gas preparation by catalytic reforming of shale gas and carbon dioxide and a preparation method thereof. The catalyst is prepared from the following components in percent by mass: 5%-10% of main active component (nickle), 3%-5% of secondary active component (cerium), 20%-30% of anti-carbon-deposition magnesium oxide and carrier, wherein the mass ratio of the nickle to the cerium is (1-3):1, and the carrier is one or more of titanium oxide, aluminium oxide or silicon oxide. The catalyst disclosed by the invention has the advantages of low reaction temperature, high catalytic activity, good anti-carbon-deposition and good stability, and is applicable to industrial application of fixed beds or fluidized beds. The catalyst has the beneficial effects that in the catalytic reforming application of the shale gas and CO2, the pressure is normal pressure, the reaction temperature is 500-900 DEG C, not only can effective and clean utilization of shale-gas resources be realized, but also two types of greenhouse gases can be treated simultaneously, the greenhouse effect is relieved, and the product has proper H2 / CO ratio and can be directly applicable to other fields of Fischer-Tropsch synthesis and the like, so that the industrial application prospect is wide.

Description

technical field [0001] The invention relates to the utilization of shale gas resources and CO 2 The utilization of shale gas and CO 2 The invention discloses a catalyst for preparing synthesis gas by catalytic reforming and a preparation method thereof, belonging to the technical fields of resource utilization of shale gas, carbon dioxide capture and catalyst preparation. Background technique [0002] The world is rich in shale gas resources. Shale gas can not only replace conventional natural gas in the energy field, but also be more widely used in the chemical industry than conventional natural gas. However, the development and utilization of shale gas is still in the exploratory stage and immature. At the same time, in the context of global warming, CO 2 The emission and utilization of carbon dioxide have attracted the attention of countries all over the world. How to broaden the use of shale gas and reduce carbon dioxide emissions are common problems. Shale gas and ...

Claims

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Application Information

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IPC IPC(8): B01J23/83C10L3/08C01B3/40C01B3/36
CPCB01J23/002B01J23/83C01B3/36C01B3/40C01B2203/0238C01B2203/1058C10L3/08Y02P20/129Y02P20/52
Inventor 吴烨刘岩查丽娜高原赵文文刘冬
Owner NANJING UNIV OF SCI & TECH
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