Antichlor for catalytic reforming regenerated gas and preparation method

A catalytic reforming and dechlorination agent technology, applied in chemical instruments and methods, separation methods, and other chemical processes, can solve problems such as manual operation hazards, environmental hazards, and air pollution, and achieve convenient and safe manual operations and anti-carbonic acid Strong chemical ability, simple and convenient operation

Inactive Publication Date: 2009-01-21
XIAN ORIGIN CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. The process equipment is complicated, and the one-time investment in equipment is relatively large;
[0005] 2. The operation control process is complicated, and the process indicators such as the concentration of alkali solution and the temperature of alkali washing are not easy to be controlled smoothly, and accidents such as tower leakage and tower blockage are prone to occur;
[0006] 3. The removal effect of HCl is not good, and the residual HCl often enters the follow-up system, causing corrosion of equipment and pipelines in the follow-up system or polluting the atmosphere
[0007] 4. Liquid strong alkali is a strong corrosive agent for equipment and a dangerous factor for manual operation
[0008] 5. The treatment of waste slag and waste liquid is easy to cause the problem of three wastes treatment and cause harm to the environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0026] The preparation method of above-mentioned catalytic reforming regeneration gas dechlorination agent: comprise the following steps:

[0027] 1) Grind the chemical raw materials with the formula or chemical composition to be below 200 mesh, fully mix them evenly in the mixer, and prepare the liquid raw materials according to the weight ratio;

[0028] 2) Put the mixed powder into the rotating ball forming machine, through the continuous rolling of the ball forming machine, add water during the rolling process, so that the material rolls to form spherical particles, when the spherical particles are φ3~φ6mm, take it out and place it for 8 ~12 hours (for health preservation);

[0029] 3) The placed spherical particles are placed in a drying room for drying, and then roasted in a rotary kiln or a roasting furnace at a roasting temperature of 400°C to 600°C for 4 hours, and then packaged to obtain the finished product.

[0030] The physical properties of the product formed by...

preparation Embodiment 1

[0035] Ca(OH) 2 50kg, MgO 20kg, K 2 CO 3 10kg, 10kg of porous zeolite, aluminum rubber powder and 10kg are mixed and placed in a turntable ball making machine to rotate, gradually sprayed with deionized water to make the material gradually form into balls, when the particle size is φ3 ~ 6mm, take out the disk and pack it into bags, and let it stand still Dry it after 8 hours, and bake it at 600°C for 4 hours to obtain the finished dechlorination agent of the present invention. The breakthrough chlorine capacity of the dechlorination agent is 32.6%.

preparation Embodiment 2

[0037] CaO 40kg, MgCO 3 30kg, KOH 10kg, porous zeolite 15kg, and silica sol 5kg are compounded and carried out according to the preparation method of Example 1. The breakthrough chlorine capacity of this dechlorination agent is 35.2%.

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Abstract

The invention discloses a catalytic reforming resurgent gas antichlor and it's preparing method. The antichlor comprises (by weight percent): Ca(OH)2 or CaO 30%-60%, MgCO3 or MgO 20%-30%, K2CO3 or KOH 10%-15%, foraminous zeolite or siallitic soil 5%-15%, alhydrogel powder or silicasol 5%-15%; The total of the raw materials are 100%. The suing range comprises: IFP-I type reforming regeneration craft, IFP- II type reforming regeneration craft, UOP type reforming regeneration craft and other types of reforming regeneration craft.

Description

technical field [0001] The invention relates to a dechlorination agent, in particular to a catalytic reforming regenerated gas dechlorination agent for removing HCl from mixed industrial gas under high temperature and variable temperature conditions and a preparation method thereof. Background technique [0002] In the petroleum refining industry, the activity of the reforming catalyst in the catalytic reforming process will gradually decline during use, and it needs to be regenerated regularly to restore its activity. During the regeneration process, the catalyst needs to be oxychlorinated with a regeneration medium organic chloride (such as carbon tetrachloride, etc.). During or after the oxychlorination process, part of the residual organic chloride is converted to HCl, the latter flows into the pipes and equipment of the subsequent system along with the regenerated gas, causing corrosion to the pipes and equipment, or polluting the atmosphere after venting. [0003] The...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/14B01D53/04B01J20/04C10G70/00
Inventor 李生运冯续崔芳王雨田布巧云
Owner XIAN ORIGIN CHEM TECH
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