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High-temperature gas antichlor

A high-temperature gas and dechlorination agent technology, applied in gas treatment, dispersed particle separation, membrane technology, etc., can solve problems such as industrial application restrictions, and achieve the effects of low cost, stable performance, and high chlorine capacity

Inactive Publication Date: 2019-03-26
庄壮
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Most of the dechlorination agents in the prior art use alkali metal and alkaline earth metal compounds as active components, and have a high degree of purification. However, they are generally used at temperatures below 500 ° C, so the industrial application of high temperature dechlorination is limited

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Weigh the following raw materials in parts by weight: 23 parts of clay, 15 parts of calcium carbonate, 10 parts of calcium oxide, 25 parts of calcium hydroxide, and 12 parts of hydrotalcite. The raw materials are weighed in parts by weight, mixed, ground and passed through a 100-mesh sieve, and mixed evenly; the mixed material is extruded with water, and then dried and roasted to obtain the final product; the roasting temperature is 650° C., and the time is 4 hours.

Embodiment 2

[0014] Weigh the following raw materials in parts by weight: 20 parts of clay, 13 parts of calcium carbonate, 12 parts of calcium oxide, 23 parts of calcium hydroxide, and 15 parts of hydrotalcite. The raw materials are weighed in parts by weight, mixed, ground and passed through a 100-mesh sieve, and mixed evenly; the mixed material is extruded with water, and then dried and roasted to obtain the final product; the roasting temperature is 700°C and the time is 3 hours.

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PUM

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Abstract

The invention relates to high-temperature gas antichlor. The antichlor is prepared from the following raw materials in parts by weight: 20-26 parts of clay, 12-17 parts of calcium carbonate, 8-12 parts of calcium oxide, 22-28 parts of calcium hydroxide and 10-15 parts of hydrotalcite. The antichlor is prepared by the following steps: weighing raw materials in the weight ratio, mixing, grinding, screening through a 100-mesh screen, and uniformly mixing; and extruding and molding the mixed material with water, drying and roasting at the temperature 600-750 DEG C for 2-4 hours. The process for preparing the gas antichlor is simple and has low cost; and the gas antichlor has stable performance, high chlorine tolerance and good purity, and can be widely applied to removal of hydrogen chloride in high-temperature fuel gas and high-temperature gas.

Description

technical field [0001] The invention relates to a gas dechlorination agent, in particular to a high-temperature gas dechlorination agent. Background technique [0002] In chemical production, especially in the production process of petrochemical and chemical fertilizer industries, hydrogen chloride gas is often left. In order to ensure the normal operation of the system or reduce equipment corrosion, the removal of hydrogen chloride in the gas is often a very important purification process. The coal gasification combined cycle power generation (IGCC) and coal gasification fuel cell (MCFC) under development put forward new requirements for the removal of hydrogen chloride in gas under high temperature conditions. Hydrogen chloride in high temperature gas is very harmful to the corrosion of equipment, and even affects the normal operation of the system. For example, for the MCFC system, the hydrogen chloride in the gas can form a low boiling point compound with the electrolyt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/00
CPCB01D53/00B01D2257/2045
Inventor 庄壮
Owner 庄壮
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