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Alcohol liquid phase reforming hydrogen production catalyst, preparation method and application thereof

A liquid-phase reforming and catalyst technology, which is applied in chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, etc., can solve the problems of land occupation, high input cost and high operating cost. Problems such as high volume load of the aeration tank and high energy consumption of distillation and separation achieve the effect of improving conversion rate and hydrogen selectivity, high conversion rate and high hydrogen selectivity

Active Publication Date: 2020-10-27
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, the volume load required for the design of the aeration tank is relatively high, and the floor area, input cost, and operating cost are relatively large.
In addition, the energy consumption of distillation and separation is huge, and the remaining wastewater after rectification and extraction is still difficult to biochemically treat

Method used

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  • Alcohol liquid phase reforming hydrogen production catalyst, preparation method and application thereof
  • Alcohol liquid phase reforming hydrogen production catalyst, preparation method and application thereof
  • Alcohol liquid phase reforming hydrogen production catalyst, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] 10.0 g of magnesium oxide powder was mixed with 100.0 g of deionized water and stirred for 2 hours using ultrasound. Then pour into the condensing reflux device and continue to boil for 24 hours. After filtration, the product was heated in a furnace at 500° C. for 5 hours to completely remove the moisture. The magnesia powder was placed in a CVD tube furnace, and Ar gas was introduced to maintain the absolute pressure in the tube furnace at 0.02 MPa. After the temperature was raised to 900°C and stabilized for 10 minutes, methane was introduced at a flow rate of 20 ml / min for 5 minutes, and then the methane was stopped and the temperature was naturally lowered immediately. Graphene just grows on the magnesia surface, and the product obtained is added dropwise to distilled water to incipient wetness, and the volume of consumed water is recorded, and then accounts for 3.0% by weight of the overall catalyst mass by Pt content (in oxides), and the preparation of four Ammo...

Embodiment 2

[0055] 10.0 g of magnesium oxide powder was mixed with 100.0 g of deionized water and stirred for 2 hours using ultrasound. Then pour into the condensing reflux device and continue to boil for 24 hours. After filtration, the product was heated in a furnace at 500° C. for 5 hours to completely remove the moisture. The magnesia powder was placed in a CVD tube furnace, and Ar gas was introduced to maintain the absolute pressure in the tube furnace at 0.02 MPa. After the temperature was raised to 900°C and stabilized for 10 minutes, methane was introduced at a flow rate of 20 ml / min for 5 minutes, and then the methane was stopped and the temperature was naturally lowered immediately. Graphene just grows on the magnesia surface, and the product obtained is dripped with distilled water to incipient wetness, records the volume of consumed water, then accounts for 25% by weight of the overall catalyst mass by Ni content (in oxides), and prepares nitric acid Nickel impregnating solut...

Embodiment 3

[0058] After mixing 5.0 g of magnesium oxide powder and 5.0 g of aluminum oxide powder, add 100.0 g of deionized water and mix, and use ultrasonic stirring for 2 hours. Then pour into the condensing reflux device and continue to boil for 24 hours. After filtration, the product was heated in a furnace at 500° C. for 5 hours to completely remove the moisture. The magnesia powder was placed in a CVD tube furnace, and Ar gas was introduced to maintain the absolute pressure in the tube furnace at 0.02 MPa. After the temperature was raised to 900°C and stabilized for 10 minutes, methane was introduced at a flow rate of 5 ml / min for 5 minutes, then the methane was stopped and the temperature was naturally lowered immediately. Graphene just grows on the magnesia surface, and the product obtained is dripped with distilled water to incipient wetness, records the volume of consumed water, then accounts for 25% by weight of the overall catalyst mass by Ni content (in oxides), and prepare...

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Abstract

The invention relates to an alcohol liquid phase reforming hydrogen production catalyst, a preparation method and an application method thereof. The alcohol liquid phase reforming hydrogen productioncatalyst is a supported catalyst with a carbon coating layer, and is composed of a carrier, the carbon coating layer, an active metal component and an optional auxiliary agent, wherein the carrier isan inorganic oxide, the active metal component is a VIII group metal component, and the mass fraction of carbon in the carbon coating layer is 0.01%-5% based on the whole catalyst. The catalyst is applied to a liquid-phase reforming hydrogen production process of an alcohol substance, and has the characteristics of high conversion rate of the alcohol substances, high hydrogen selectivity and longservice life.

Description

technical field [0001] The invention relates to a catalyst for hydrogen production by liquid-phase reforming of alcohols, a preparation method and an application method thereof. Background technique [0002] At present, hydrogen production by liquid-phase reforming of alcohols with relatively high renewable raw materials is becoming more and more popular. Biomass is a highly renewable substance, and its conversion to hydrogen involves the production of liquid-phase hydrocarbons from the biomass, followed by reforming reactions to produce H 2 and CO 2 These two processes. The resulting CO 2 can be recycled to the environment, and then absorbed by plants to produce more biomass, while H 2 It can be used in various applications, for example, as a hydrogen source for fuel cells, in hydrogenation processes, in internal combustion engines, etc. Therefore, to make green hydrogen production and industrial application of green hydrogen sources feasible, it is necessary to develo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/58B01J23/78B01J23/883B01J23/835C01B3/32
CPCB01J23/58B01J23/78B01J23/835B01J23/002B01J23/28B01J23/42B01J23/8872B01J23/44B01J23/80C02F1/58C01B3/326B01J2523/00C02F2101/34C02F2103/365C01B2203/0227C01B2203/1041C01B2203/1082B01J2523/22B01J2523/31B01J2523/824B01J2523/847B01J2523/68Y02P20/52
Inventor 徐凯徐润牛传峰戴立顺夏国富胡志海
Owner CHINA PETROLEUM & CHEM CORP
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