Sulfur-containing malodorous gas adsorbent and preparation method thereof

A technology of malodorous gas and adsorbent, which is applied in the field of sulfur-containing malodorous gas adsorbent and its preparation, can solve the problems of unsuitable industrial production, fine particle size of molecular sieve, and difficult treatment of waste liquid, etc., and achieves easy operation, low cost, and no pollution. The effect of secondary pollution

Pending Publication Date: 2020-09-22
SHANXI PULI ENVIRONMENT ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method not only wastes a lot of heat energy, but also the quality of gypsum is poor, the utilization value is low, or it cannot be used
[0005] Application number "201710239688.2" discloses "a double-shell ZSM-5 molecular sieve adsorption and removal method for sulfur dioxide gas in flue gas". In this method, a large-pore ZSM-5 is used to adsorb sulfur dioxide gas in flue gas. A double-shell ZSM-5 molecular sieve prepared by reacting with an alkaline substance tetrabutylammonium hydroxide, this double-shell molecular sieve can adsorb sulfur dioxide-containing gas, this method requires centrifugal separation, the waste liquid is difficult to handle, and pollutes the environment Very thin and cannot be used in industrial production

Method used

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  • Sulfur-containing malodorous gas adsorbent and preparation method thereof
  • Sulfur-containing malodorous gas adsorbent and preparation method thereof
  • Sulfur-containing malodorous gas adsorbent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] After fully mixing 200g type A molecular sieve, 60g aluminum sol, 50g kaolin and 100g water, knead the lumpy mud, solidify the lumpy mud at room temperature for 2 hours, and then extrude the mud into strips with a vacuum extrusion molding machine , then dried at 105°C for 1.5h, and calcined at 550°C for 3 hours to make adsorbent PZ-1.

Embodiment 2

[0024] After mixing 200g type A molecular sieve with 60g silica sol, 50g kaolin and 100g water, knead the lumpy mud, solidify the lumpy mud at room temperature for 2 hours, and then extrude the mud into strips with a vacuum extrusion molding machine. Then it was dried at 105°C for 1.5h and calcined at 550°C for 3 hours to make adsorbent PZ-2.

Embodiment 3

[0026] After mixing 200g shape-selective molecular sieve, 60g squash powder, 50g kaolin and 100g water, knead the lumpy mud, solidify the lumpy mud at room temperature for 2 hours, and then extrude the mud into strips with a vacuum extrusion molding machine shape, then dried at 105°C for 1.5h, and calcined at 550°C for 3 hours to make adsorbent PZ-3.

[0027] Adsorbent Physical Properties

[0028] Bulk density: 0.66-0.75g / cm3

[0029] Appearance: white strip

[0030] Specific table: 270-350m2 / g

[0031] Compressive strength: 120-160N / cm

[0032] Put 30ml of the adsorbent prepared above into the evaluation device for evaluation, and the adsorption effect is compared as follows:

[0033]

[0034]

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Abstract

The invention belongs to the technical field of tail gas treatment, and particularly relates to a sulfur-containing malodorous gas adsorbent and a preparation method thereof. The preparation method comprises the steps: taking molecular sieve, a binder, an auxiliary agent and deionized water as raw materials; fully mixing and kneading into blocky pug; drying the formed blocky pug at the temperatureof 70-200 DEG C, and curing for 1-3 hours; and extruding the cured blocky pug into strips by using a vacuum extrusion molding machine, and roasting for 1-5 hours at the temperature of 300-700 DEG C to obtain the adsorbent. The sulfur-containing malodorous gas adsorbent provided by the invention does not generate wastewater, does not pollute the environment, is low in cost, few in process, large in particle and high in strength, can be used as a filler to be applied to adsorption of industrial flue gas, is low in cost, and has the advantages of convenience, simplicity and no secondary pollution.

Description

technical field [0001] The invention belongs to the technical field of tail gas treatment, and in particular relates to a sulfur-containing malodorous gas adsorbent and a preparation method thereof which are used in the purification of flue gas containing sulfur-containing malodorous gas. Background technique [0002] Coal, as a cheap and abundant resource, can be processed into various chemical raw materials to fill our country's resource structure with little oil and little gas, and occupies a dominant position in the national economic field. However, in the conversion process, due to the deficiencies and deficiencies in many aspects of the traditional and old application methods, it has caused serious pollution to the environment. The sulfur contained in coal is also catalytically toxic to subsequent processing, so the sulfur contained in coal is greatly reduced. Limit its promotion and application in industry. [0003] In order to alleviate the lack of utilization of co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/18B01J20/30B01J20/34B01D53/02
CPCB01J20/183B01J20/12B01J20/103B01J20/3042B01J20/3483B01D53/02B01D2257/30B01D2258/0283
Inventor 郝海光朱海燕侯致福杜光远赵周明
Owner SHANXI PULI ENVIRONMENT ENG CO LTD
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