Catalyst for dioxin removal in steel plants - desulfurizer

Catalyst for dioxin removal in steel plantsAs a new product in the dioxin removal market, it has the characteristics of high removal efficiency, wide applicable temperature range, and multiple catalyst types. Based on the characteristics of the catalyst, the installation and layout can be carried out using a high-temperature and high dust method to maintain the catalyst's excellent reaction activity. The dioxin removal system can be low-cost, and a collaborative NOx and dioxin removal system can also be selected as needed.

Steel smelting, non-ferrous metal smelting, automobile exhaust, incineration production (including pharmaceutical wastewater incineration, waste incineration in chemical plants, household waste incineration, coal-fired power plants, etc.). Lead containing gasoline, coal, wood that has undergone anti-corrosion treatment, petroleum products, and various types of waste, especially medical waste, are prone to produce dioxins when burned at temperatures below 300-400 ℃. The production processes of polyvinyl chloride plastics, paper, and certain drugs, steel smelting, and high-temperature activation of catalysts can all release dioxins into the environment. Dioxins also exist as impurities in some pharmaceutical products such as 2,4,5-T. Dioxins in flue gas can be treated with modified SCR catalysts. Zhongneng Guoxin has independently developed dioxin removal catalysts, which have been applied in multiple chemical plants, waste incineration, and hazardous waste incineration plants with high removal rates.

Dioxin, a catalyst for removing dioxins in steel smelting, refers to a chlorinated organic compound containing two or one oxygen bond linked to two benzene rings. Its English name is "Dioxin". Due to the different substitution positions of Cl atoms from 1 to 9, they form diphenyl (PCDD) and 135 isomers * (PCDF), commonly referred to as dioxins. Their molecular weight is 321.96 and they are white crystals. They decompose at 302-305 ° C and 705 ° C, and 2s * at 800 ° C.

Catalyst for dioxin removal in steel plantsThe main features are:

1. This inhibitor has catalytic adsorption function, which enables the complete combustion of garbage, improves thermal efficiency, and increases calorific value.

2. Mix the garbage thoroughly with 1% to 2% of its weight in advance, or use a screw conveyor to evenly add it to the garbage for mixing and combustion, and assist in injecting adsorption through the flue, all of which have an effect.

3. Dioxin inhibitors can also be sprayed into the low-temperature zone of the furnace to prevent the catalytic generation of dioxins from garbage.

4. Dioxins may be re synthesized after flue gas dust removal. Spraying dioxin inhibitors in the low-temperature zone of flue gas can also prevent the re synthesis of adsorbed dioxins.

5. Solid powder, easy to mix or spray with garbage. Plastic drums or paper moisture-proof packaging are more environmentally friendly in preventing spills and leaks.

6. It does not contain heavy metals and will not cause secondary pollution or excessive heavy metals in the flue.

7. Easy to biodegrade, no harmful substances will be produced after combustion.