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Several issues related to exhaust gas catalysts

time:2020-10-22
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Organic waste gas is a common pollutant emitted by industries such as petrochemicals, light industry, plastics, printing, and painting. The waste gas often contains hydrocarbon compounds and oxygen-containing organic compounds, which, if not treated and directly discharged into the atmosphere, will cause serious pollution to the environment. Here are a few questions about organic waste gas catalysts:

有关废气催化剂的几个问题

1. What is a catalyst?

A catalyst is a substance that changes the reaction rate without altering the total standard Gibbs free energy of the reaction. It can accelerate the chemical reaction rate and alter the chemical reaction pathway. The effect it causes in a chemical reaction is called catalytic action.

 

2. What are the toxic substances in exhaust gas catalysts?

Resin, high boiling point polymer, tar, heavy metals (Hg, Pb, Sn, Zn), organic phosphorus, phosphides, organosilicon, and fluorinated organic compounds. However, the anti poisoning performance of catalysts is related to their performance.

 

3. Does the height of the exhaust gas catalyst bed affect the catalyst?

The catalyst bed requires a reasonable height, usually 300mm. Too high and too low can affect the catalytic effect.

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