Ammonia water pretreatment resurrection method of S-Zorb waste adsorbent

A 1.s-zorb, adsorbent technology, applied in separation methods, filter regeneration, filtration and separation, etc., can solve the problem of waste adsorbent regeneration, achieve high-efficiency reuse, good adsorption and desulfurization performance, and reduce the three wastes. the effect of pressure

Inactive Publication Date: 2015-08-19
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method only separates the material that meets a certain particle size or only the magnetic nickel in it, and cannot really regenerate the spent adsorbent.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Ammonia solution with a mass concentration of 5% and S-Zorb waste adsorbent were mixed and stirred at room temperature for 10 hours at a solid-to-liquid ratio of 8:1, and then the adsorbent was washed with deionized water, deionized water and S -The mass ratio of the Zorb waste adsorbent is 6:1, measured on a dry basis of the S-Zorb waste adsorbent; then filtered and dried at 120°C for 3 hours to obtain the initially regenerated adsorbent, and the initially regenerated adsorbent was obtained at 450 ℃ for 2.5 hours to obtain the revived adsorbent.

[0015] The S-Zorb waste adsorbent comes from the 0.9Mt / a S-Zorb unit of Sinopec Qilu Petrochemical Company.

Embodiment 2

[0017] The ammonia solution with a mass concentration of 10% and the S-Zorb waste adsorbent were mixed and stirred at room temperature for 7 hours according to the solid-to-liquid ratio of 5:1, and then the adsorbent was washed with deionized water, deionized water and S- The mass ratio of the Zorb waste adsorbent was 8:1, and then filtered and dried at 100°C for 4 hours to obtain the initially regenerated adsorbent, and the initially regenerated adsorbent was roasted at 500°C for 1.5 hours to obtain the revived adsorbent.

Embodiment 3

[0019] The ammonia solution with a mass concentration of 20% and the S-Zorb waste adsorbent were mixed and stirred at room temperature for 3 hours according to the solid-to-liquid ratio of 2:1, and then the adsorbent was washed with deionized water, deionized water and S -The mass ratio of the Zorb waste adsorbent is 10:1, and then filtered and dried at 150°C for 2 hours to obtain the initially regenerated adsorbent, and the initially regenerated adsorbent is roasted at 600°C for 0.5 hours to obtain the revived adsorbent .

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PUM

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Abstract

The invention relates to an ammonia water pretreatment resurrection method of an S-Zorb waste adsorbent, and belongs to the field of treatment and application of solid wastes. The ammonia water pretreatment resurrection method of the S-Zorb waste adsorbent comprises the following steps: mixing and stirring an ammonia water solution and the S-Zorb waste adsorbent, washing and filtering through deionized water, drying, and roasting for 0.5-4 hours at 350-600 DEG C to obtain a resurrected adsorbent. Through the adoption of the S-Zorb waste adsorbent resurrection method provided by the invention, the S-Zorb waste adsorbent is treated through the ammonia water, the waste adsorbent is chemically treated through a chemical method, and the structure and chemical components of the waste adsorbent are fundamentally changed, so that the adsorbent is resurrected, the resurrection method is simple and flexible in operation, the waste adsorbent is efficiently recycled, the pressure of three-wastes treatment of an enterprise is relieved, the specific surface area and the pore volume of the resurrected S-Zorb waste adsorbent are greatly increased, and the adsorption desulfurization performance is good.

Description

technical field [0001] The invention relates to an ammonia water pretreatment revival method for S-Zorb waste adsorbent, belonging to the field of solid waste treatment and application. Background technique [0002] With the increasingly stringent environmental protection regulations, my country's requirements for gasoline sulfur content are becoming more and more stringent. The National V standard requires gasoline sulfur content to be less than 10ppm, and the S-Zorb process is a gasoline deep desulfurization technology that can produce gasoline that meets the requirements. [0003] At present, most of the adsorbents in the S-Zorb process still rely on imports. Sinopec has developed an adsorbent that conforms to the Chinese production process and applied for a patent. The domestic transformation of the S-Zorb process has also made the process more and more suitable for China. raw material. But no matter how localized the process is, a large amount of waste adsorbent will b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/34
Inventor 刘欣梅陈英杰郑阳阳辛颖许本静阎子峰
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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