Desulfuration adsorbent

An adsorbent, ammonium metavanadate technology, applied in the treatment of hydrocarbon oil, refined hydrocarbon oil, petroleum industry, etc., can solve the problems of low adsorbent specific surface area, low desulfurization agent selectivity, limited adsorption sulfur capacity, etc. The effect of operating cost, easy control and low production cost

Inactive Publication Date: 2017-04-26
ZHENGZHOU BEIDOU COMM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the desulfurizers in the prior art generally have the following deficiencies: 1. The desulfurization depth is not enough, and it is difficult to desulfurize to below 5 ppmw; 2. The specific surface area of ​​the adsorbent is low, and the adsorption capacity of sulfur is relatively limited; 3. The operating conditions of the desulfurization process are harsh. A

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Examples

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Embodiment 1

[0017] In the embodiment of the present invention, a desulfurization adsorbent is composed of the following raw materials in parts by weight: 33 parts of nano-attapulgite, 1 part of methyl ketone cyclohexyl ester, 7 parts of acrylic acid, and 11 parts of ammonium metavanadate.

[0018] Ammonium metavanadate was mixed with 6.1 times the mass of deionized water to prepare an ammonium metavanadate solution; acrylic acid was mixed with 2.7 times its mass of absolute ethanol to prepare an acrylic acid solution. Mix and grind nano-attapulgite and methyl ketone cyclohexyl ester, pass through a 120-mesh sieve, then add ammonium metavanadate solution, heat up to 72°C and seal and stir at this temperature for 2.1h, then add acrylic acid solution, heat up to 89°C and heated and stirred at this temperature for 15min, then ultrasonically treated at this temperature for 33min, with an ultrasonic power of 900W, then stirred at a temperature of 99°C until dry, and then calcined in a muffle fur...

Embodiment 2

[0020] In the embodiment of the present invention, a desulfurization adsorbent is composed of the following raw materials in parts by weight: 41 parts of nano-attapulgite, 5 parts of methyl ketone cyclohexyl ester, 15 parts of acrylic acid, and 19 parts of ammonium metavanadate.

[0021] Ammonium metavanadate was mixed with 6.1 times the mass of deionized water to prepare an ammonium metavanadate solution; acrylic acid was mixed with 2.7 times its mass of absolute ethanol to prepare an acrylic acid solution. Mix and grind nano-attapulgite and methyl ketone cyclohexyl ester, pass through a 120-mesh sieve, then add ammonium metavanadate solution, heat up to 72°C and seal and stir at this temperature for 2.1h, then add acrylic acid solution, heat up to 89°C and heated and stirred at this temperature for 15 minutes, then ultrasonically treated at this temperature for 33 minutes, with an ultrasonic power of 900W, then stirred at a temperature of 101°C until dry, and then calcined in...

Embodiment 3

[0023] In the embodiment of the present invention, a desulfurization adsorbent is composed of the following raw materials in parts by weight: 35 parts of nano-attapulgite, 2 parts of methyl ketone cyclohexyl ester, 9 parts of acrylic acid, and 13 parts of ammonium metavanadate.

[0024] Ammonium metavanadate was mixed with 6.1 times the mass of deionized water to prepare an ammonium metavanadate solution; acrylic acid was mixed with 2.7 times its mass of absolute ethanol to prepare an acrylic acid solution. Mix and grind nano-attapulgite and methyl ketone cyclohexyl ester, pass through a 120-mesh sieve, then add ammonium metavanadate solution, heat up to 72°C and seal and stir at this temperature for 2.1h, then add acrylic acid solution, heat up to 89°C and heated and stirred at this temperature for 15 minutes, then ultrasonically treated at this temperature for 33 minutes, with an ultrasonic power of 900W, and then stirred at a temperature of 100°C until dry, and then calcined...

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Abstract

The invention discloses a desulfuration adsorbent. The desulfuration adsorbent is composed of the following raw materials of, by weight, 33-41 parts of nano attapulgite, 1-5 parts of cyclohexyl methyl ketone, 7-15 parts of acrylic acid, and 11-19 parts of ammonium metavanadate. According to the desulfuration adsorbent, the nano attapulgite serves as one of the raw materials and mixed with the cyclohexyl methyl ketone, grinding is conducted, and the ammonium metavanadate, the acrylic acid and the like are used for treatment, so that the desulfuration adsorbent is prepared; the desulfuration adsorbent prepared in the this way is large in sulfur capacity, good in sulfur selectivity, high in desulfuration percent and capable of reducing sulfur to 1ppmw; and in addition, the desulfuration adsorbent is long in service life, environmentally friendly and free of secondary pollution. The preparation process of the desulfuration adsorbent is simple, operation and control are easy, the performance is stable, the production cost is low, and the desulfuration adsorbent is suitable for industrialized production. When the desulfuration adsorbent is used for desulfuration of gasoline, the process operating conditions are mild, dsulfuration can be conducted under ordinary pressure and at a low temperature, accordingly energy consumption is reduced, and the operation cost is lowered.

Description

technical field [0001] The invention relates to the technical field of desulfurization materials, in particular to a desulfurization adsorbent. Background technique [0002] The ultra-deep desulfurization of gasoline has become an important problem to be solved worldwide. The combustion of sulfur in gasoline produces sulfur oxides (SOx), which is one of the main pollutants in the atmosphere. When it is discharged into the air, it will form acid rain and damage the ecological environment. In addition, sulfur oxides can also corrode and damage engine components, poison motor vehicle exhaust gas treatment catalysts, reduce their catalytic activity, increase the emission of particulate pollutants, and aggravate urban environmental pollution. Therefore, limiting the sulfur content is an important indicator in the standard of motor gasoline, and also a key factor in evaluating the cleanliness of gasoline. Only 34% of foreign gasoline blending components are catalytic cracking (F...

Claims

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Application Information

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IPC IPC(8): B01J20/12B01J20/30C10G25/00
CPCB01J20/12B01J20/0214B01J2220/4806B01J2220/4812C10G25/003C10G2300/202C10G2400/02
Inventor 不公告发明人
Owner ZHENGZHOU BEIDOU COMM TECH
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