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Desulfurizing agent for kerosene, desulfurization method and fuel cell system using the desulfurizing agent for kerosene

A technology of fuel cell system and desulfurizer, which is applied in the direction of fuel cells, fuel cell additives, chemical instruments and methods, etc., can solve the problems of desulfurization function decline, achieve the effects of inhibiting degradation and improving durability

Inactive Publication Date: 2009-10-14
JX NIPPON OIL & ENERGY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the reagent is based on the premise that it is used under pressure in the coexistence of hydrogen, therefore, due to the smaller nickel content, the desulfurization function of the reagent is reduced at low pressure without the coexistence of hydrogen

Method used

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  • Desulfurizing agent for kerosene, desulfurization method and fuel cell system using the desulfurizing agent for kerosene
  • Desulfurizing agent for kerosene, desulfurization method and fuel cell system using the desulfurizing agent for kerosene

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] 272.5 g of nickel nitrate hexahydrate (commercially available special grade reagent) and 54.8 g of zinc nitrate hexahydrate (commercially available special grade reagent) were dissolved in ion-exchanged water to prepare 2500 ml of an aqueous solution, hereinafter referred to as liquid A. 130.8 g of sodium carbonate (commercially available special-grade reagent) was dissolved in ion-exchanged water, and it was mixed with 50 g of commercially available silica sol (particle diameter: about 15 nm, silica content: 15.0 g) to 1000 ml of solution was prepared, hereinafter referred to as Liquid B. Liquid A and Liquid B were mixed at a temperature of 40°C while stirring to form a precipitate. After washing the precipitate with ion-exchanged water, the obtained cake was crushed, then dried at a temperature of 120° C. for 10 hours and calcined at a temperature of 360° C. for 4 hours, thereby yielding 100 g of a calcined powder. The calcined powder has the following composition: w...

Embodiment 2

[0076] 166.6 g of nickel acetate tetrahydrate (commercially available special grade reagent) and 80.9 g of zinc acetate dihydrate (commercially available special grade reagent) were dissolved in ion-exchanged water to prepare 3000 ml of an aqueous solution, hereinafter referred to as liquid A. 121.0 g of sodium carbonate (commercially available special-grade reagent) was dissolved in ion-exchanged water, and it was mixed with 66 g of commercially available silica sol (particle diameter: about 15 nm, silica content: 20.0 g) to 1200 ml of solution was prepared, hereinafter referred to as Liquid B. Liquid A and Liquid B were mixed at a temperature of 40°C while stirring to form a precipitate. After washing the precipitate with ion-exchanged water, the resulting cake was crushed, then dried at a temperature of 120° C. for 10 hours and calcined at a temperature of 360° C. for 4 hours, thereby yielding 100 g of a calcined powder. The calcined powder has the following composition, w...

Embodiment 3

[0079] 233.6 g of nickel nitrate hexahydrate (commercially available special grade reagent) and 54.8 g of zinc nitrate hexahydrate (commercially available special grade reagent) were dissolved in ion-exchanged water to prepare 2500 ml of an aqueous solution, hereinafter referred to as liquid A. 115.1 g of sodium carbonate (commercially available special-grade reagent) was dissolved in ion-exchanged water, and it was mixed with 83 g of commercially available silica sol (particle diameter: about 15 nm, silica content: 25.0 g) to 1200 ml of solution was prepared, hereinafter referred to as Liquid B. Liquid A and Liquid B were mixed at a temperature of 40°C while stirring to form a precipitate. After washing the precipitate with ion-exchanged water, the resulting cake was crushed, then dried at a temperature of 120° C. for 10 hours and calcined at a temperature of 360° C. for 4 hours, thereby yielding 100 g of a calcined powder. The calcined powder has the following composition, ...

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Abstract

Disclosed is a desulfurizing agent for kerosene, which is capable of efficiently removing the sulfur content in a kerosene under low pressure conditions, while having excellent suppressing effect on carbon deposit. The desulfurizing agent for kerosene contains 45-75% by mass of nickel oxide, 3-40% by mass of zinc oxide and 10-25% by mass of silica, while containing not more than 5% by mass of alumina and not more than 0.1% by mass of sodium. This desulfurizing agent for kerosene has a BET specific surface area of not less than 200 m / g.

Description

field of invention [0001] The present invention relates to kerosene desulfurizer. The invention also relates to a method of desulfurizing kerosene containing sulfur using the reagent. Furthermore, the present invention relates to a fuel cell system equipped with a desulfurization device containing the agent. Background of the invention [0002] Fuel cells are characterized by high efficiency because they can extract electrical energy directly from the change in free energy caused by the combustion of fuel. Also, fuel cells do not emit any harmful substances, and thus have been widely used for various purposes. In particular, solid polymer electrolyte fuel cells are characterized by high power density, compact size, and low-temperature operation. [0003] Fuel gas used for fuel cells generally contains hydrogen as a main component. Examples of raw materials of the fuel gas include hydrocarbons such as natural gas, LPG, naphtha, and kerosene; alcohols such as methanol and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G25/05B01J20/06C10G29/06H01M8/06C01B3/38
CPCB01J2220/56B01J20/06C01B2203/0822C01B3/384C10G2300/1051C01B2203/0816C10G2400/08C01B2203/0288Y02E60/50C01B2203/127C01B2203/0827C10G2300/202B01J20/2803C01B2203/066B01J20/08H01M2008/1095B01J20/103H01M8/0675C01B2203/044C01B2203/1064C01B2203/1247B01J20/28061C01B2203/1058C01B2203/0233C01B2203/047C01B3/48Y02P20/52Y02P20/10C10G25/05H01M8/04H01M8/06
Inventor 濑川敦司足立伦明驹见辰三郎宫泽一则
Owner JX NIPPON OIL & ENERGY CORP
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