High-chlorine-capacity high-intensity alumina de-chlorinating agent

An alumina, high-strength technology, applied in other chemical processes, chemical instruments and methods, chemical/physical processes, etc., can solve the problems of easily blocked pipeline chlorine capacity, small service life, low mechanical strength, etc., to improve the specific surface area. , long service life and good mechanical strength

Inactive Publication Date: 2012-02-22
胡自斌
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Aiming at the above-mentioned problems in the prior art that the dechlorination agent has low mechanical strength, high wear and tear, much dust and easy to block pipelines, and short service life due to small pore volume and small chlorine capacity, the present invention provides a high chlorine capacity and high strength alumina dechlorination agent It has the advantages of high pore volume, long service life, good mechanical strength, wear resistance, less dust and no blockage of equipment pipes, etc.

Method used

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Embodiment Construction

[0007] On the basis of the quick release method to produce activated alumina technology, the test adopts the method of improving ρ - Calcining temperature of alumina, improving roasting conditions, adding additives during molding, strengthening hydration conditions of raw pellets, etc., so that the specific surface index of activated alumina dechlorination agent is changed from the original 300m 2 / g increased to 380m 2 / g; The pore volume index of activated alumina dechlorination agent increased from 0.39mL / g to more than 0.45mL / g by adding pore-enlarging agent alumina dry glue and improving the hydration method. The process flow chart is shown in the accompanying drawings of the description.

[0008] Table: The relationship between the amount of additives added and the pore volume and compressive strength of alumina dechlorination agent

[0009]

[0010] It can be seen from the data in the table that with the increase of additives added, the pore volume index of alumina...

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Abstract

The invention discloses a high-chlorine-capacity high-strength alumina de-chlorinating agent, which is characterized by consisting of 30-60 percent by weight of aluminum hydrate and 30-50 percent by weight of sodium hydrate, preferably by consisting of 55 percent by weight of alumina and 45 percent by weight of sodium hydrate. The de-chlorinating agent is prepared by the following steps of: precipitating and mixing to form a colloid; and recrystallizing the colloid, washing, drying and baking. The de-chlorinating agent has the advantages of high pore capacity, long service life, high mechanical strength, wear resistance, small amount of dust, no blockage of an equipment pipeline, low treatment cost, long service cycle, good comprehensive using effect and the like, and is widely applied to de-chlorinating industrial towers.

Description

technical field [0001] The present invention relates to a molecular dechlorination agent, especially relates to an activity of high chlorine capacity and high strength for C5 petroleum resin to remove Hcl. When removing part of high-concentration hydrogen chloride (HCL>0.01%), it has a large specific surface and high chlorine capacity. Alumina, because their internal pores are highly polar, have a greater adsorption force for polar molecules, and can separate highly polar HCL from non-polar molecule H 2 effectively removed. Free chlorides in most alkanes can also be removed with activated alumina. Activated alumina adsorption of HCL is also suitable for liquid phases such as naphtha. Background technique [0002] In the production of synthetic ammonia and hydrogen production, people do not pay enough attention to the harm of chlorine. The reason is that the chlorine content in the raw material is much lower than the sulfur content, and its toxic effect is often overloo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/08B01J20/30B01D53/02B01D15/08C08F240/00C08F6/00
Inventor 胡自斌
Owner 胡自斌
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