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Desulfurizing agent for removing organic sulfur compounds, preparation method thereof and method for removing organic sulfur compounds using the same

A technology of desulfurizing agent and organic sulfur, which is applied in the field of preparing desulfurizing agent, alkali metal-free desulfurizing agent, and desulfurizing agent removing organic sulfur compounds, which can solve the problems of large adverse effects and achieve the effect of prolonging life

Inactive Publication Date: 2008-09-10
SK ENERGY CO LTD (KR)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the present inventors have found that the presence of alkali metals has a significant adverse effect on the ability of desulfurizers to remove organosulfur compounds

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] 50 mL of a 2.3 M aqueous solution containing copper nitrate: zinc nitrate: aluminum nitrate in a molar ratio of 1:1:0.3 and 50 mL of a 2.45 M ammonium carbonate aqueous solution were simultaneously added dropwise to deionized water to form a precipitate. The precipitate was filtered out, injection molded, dried at 110°C for 12 hours, and then sintered at 300°C for 12 hours to obtain a copper oxide-zinc oxide-alumina composite material as a desulfurizer. The surface area of ​​the composite was measured to be 142.32m 2 / g, the alkali metal content is 0%.

[0032] The bulk density of the desulfurizing agent containing copper oxide-zinc oxide-alumina was measured, and the desulfurizing agent was packed into a quartz tube with an inner diameter of 1 cm, and the filling volume was 1 mL. At 200° C., nitrogen gas (with a hydrogen content of 5%) was passed through the quartz tube at a flow rate of 30 mL / min for 3 hours for pretreatment to activate the desulfurization adsorbent....

Embodiment 2

[0034] It was carried out in the same manner as in Example 1, except that methane gas containing 94.1 ppm DMS as an odorant was used, and the adsorption saturation time was defined as the time required to detect DMS at a concentration of 0.1 ppm. The desulfurization ability of the desulfurizer to DMS was determined to be 0.77% by weight g s / g ads. .

Embodiment 3

[0036] It was carried out in the same manner as in Example 1, except that methane gas containing 100 ppm TBM was used, and the adsorption saturation time was defined as the time required to detect TBM at a concentration of 0.1 ppm. The desulfurization ability of the desulfurizer to TBM was determined to be 30.4% by weight s / g ads. .

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Abstract

Disclosed herein are a desulfurizing agent for removing organic sulfur compounds, a preparation method thereof, and a method for removing organic sulfur compounds using the same. The desulfurizing agent consists of a copper-zinc-aluminum complex free of alkaline metal, with a large surface area. When being contacted with organic sulfur compounds, such as t-butylmercaptan, tetrahydrothiophene, dimethylsulfide, etc., the desulfurizing agent exhibits excellent desulfurization ability and is not degraded especially at high temperatures as high as 150-350 DEG C.

Description

technical field [0001] The present invention relates to a desulfurizing agent (also called desulfurizing adsorbent) capable of effectively removing organic sulfur compounds from hydrocarbon fuels at high temperature, a preparation method of the desulfurizing agent, and a method for using the desulfurizing agent to remove organic sulfur compounds. More specifically, the present invention relates to an alkali metal-free desulfurizing agent for removing organic sulfur compounds, the desulfurizing agent comprising a copper-zinc-aluminum composite material, which can be obtained by co-precipitation, Prepared using alkali metal-free compounds as precipitation aids. The desulfurizer has a large specific surface area, and can effectively remove organic sulfur compounds especially at high temperature. The present invention also relates to a method for preparing a desulfurizing agent and a method for removing organic sulfur compounds using the desulfurizing agent. Background techniqu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/34
CPCB01J20/28059B01D2257/306B01D53/02Y02C20/20B01J20/06B01J2220/42B01J20/0237B01J20/0244B01J20/28061B01D53/485B01J20/08B01D53/34B01J20/02
Inventor 郭柄声尹永植金珍弘金一洙崔根燮方填皖全基元金炯泰金承文
Owner SK ENERGY CO LTD (KR)
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