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Absorbing fine desulfurization agent, preparation method and application thereof

A technology of fine desulfurization and activated carbon, which is applied in the fields of refining hydrocarbon oil, chemical instruments and methods, and other chemical processes to achieve the effect of easy regeneration and high sulfur capacity

Inactive Publication Date: 2019-03-29
胡平
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This new type of absorbent material that works well on removing small amounts of sulphide from oil products like gasoline or diesel fuel helps prevent damage caused during refining processes involving these materials. It also improves their effectiveness over older methods due to its higher absorption efficiency than previous ones while maintaining good activity towards certain types of compounds.

Problems solved by technology

This patented describes various methods for efficiently cleaning unsymptive organosilicon hydride (SiH) residues found during manufacturing of rubber compositions containing α silane monomers called tetrahedralite (TSP). These contaminants pose safety hazards due to their potential exploitation under harsh conditions like severe weather environments. Current technologies require expensive apparatuses and involve complicated procedures involving multiple steps, leading to reduced efficiency and cost savings compared to existing techniques.

Method used

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  • Absorbing fine desulfurization agent, preparation method and application thereof

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Experimental program
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Effect test

Embodiment 1

[0038] This embodiment provides an adsorption fine desulfurizer, which specifically includes the following steps:

[0039] After the activated carbon was sieved to obtain 30 mesh particles, 0.5mol / L Cu(NO 3 ) 2 The equal volume of the solution was impregnated on the activated carbon carrier, so that the amount of CuO accounted for 5.5% of the total weight of the activated carbon, placed at room temperature for 6 h, then dried at 120 °C for 8 h, and finally dried at 400 °C under N 2 Roasting and activating treatment for 2 hours under gas protection, the adsorption fine desulfurizer A is obtained, which is denoted as AC-A;

[0040] Among them, the specific surface area of ​​activated carbon is 1000m 2 / g, the micropore volume is 85%, and the micropore diameter is 25A.

Embodiment 2

[0042] This embodiment provides an adsorption fine desulfurizer, which specifically includes the following steps:

[0043] After the activated carbon was sieved to obtain 30 mesh particles, 0.5mol / L Cu(NO 3 ) 2 The solution is impregnated on the activated carbon support in equal volume, so that the amount of CuO accounts for 5.3% of the total weight of the activated carbon, placed at room temperature for 6h, and then dried at 110°C for 12h, and quickly added 0.6mol / L NaOH aqueous solution at room temperature to make Na 2 The amount of O accounts for 15.2% of the total weight of activated carbon, stirred for 30min, then dried at 120°C for 12h, and finally heated at 400°C under N 2 Roasting and activating treatment for 2 hours under air protection, the adsorption fine desulfurizer B is obtained, which is denoted as AC-B;

[0044] Among them, the specific surface area of ​​activated carbon is 1000m 2 / g, the micropore volume is 85%, and the micropore diameter is 25A.

Embodiment 3

[0046] This embodiment provides an adsorption fine desulfurizer, which specifically includes the following steps:

[0047] After the activated carbon was sieved to obtain 30 mesh particles, 0.5mol / L Cu(NO 3 ) 2 The solution is impregnated on the activated carbon carrier in equal volume, so that the amount of CuO accounts for 5.2% of the total weight of the activated carbon, placed at room temperature for 6h, and then dried at 110°C for 12h, and quickly added 0.6mol / L NaOH aqueous solution at room temperature to make Na 2 The amount of O accounted for 14.8% of the total weight of activated carbon, stirred for 30min, added 0.3mol / L hydrazine hydrate aqueous solution, reacted for 1h, filtered and washed, dried at 80°C for 12h, and finally dried at 400°C under N 2 Roasting and activating for 4 hours under air protection, the adsorption fine desulfurizer C is obtained, which is denoted as AC-C;

[0048] Among them, the specific surface area of ​​activated carbon is 1000m 2 / g, t...

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Abstract

The invention provides an absorbing fine desulfurization agent, a preparation method and an application thereof. The absorbing fine desulfurization agent comprises an activated carbon and an active substance loaded on the activated carbon; the active substance is a mixture of alkaline substance and metallic oxide or salts thereof; the metallic oxide is composed of one or more of oxides of K, Mg, Cu, Ni, Zn and Ag; the alkaline substance is composed of sodium oxide and/or potassium oxide; the metallic oxide is 0.1-20wt% of the activated carbon; the alkaline substance is 0.2-30wt% of the activated carbon. The absorbing fine desulfurization agent provided by the invention is used for removing sulfides, such as sulfur alcohol, sulfur ether and thiophene; the absorbing fine desulfurization agent is especially suitable for finely removing sulfur alcohol, sulfur ether, thiophene, and the like, from splitting olefin components; removal precision is less than 5ppm; content and nature of activeolefin substances in the splitting olefin components after desulfuration are almost unchanged; and meanwhile, the absorbing fine desulfurization agent has the characteristics of high sulfur capacity and easiness in regeneration.

Description

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Claims

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Application Information

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Owner 胡平
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