Rotary Kiln Flue Gas SCR Desulfurization and Denitrification Equipment

Rotary Kiln Flue Gas SCR Desulfurization and Denitrification Equipment Product Introduction:

Rotary kiln flue gas SCR desulfurization and denitrification equipment is a specialized device designed for treating sulfur and nitrogen oxides in rotary kiln flue gas. The following is a detailed introduction to this equipment:

I. Working Principle

SCR denitrification technology is a widely used method for flue gas denitrification. Its basic working principle involves the selective catalytic reduction (SCR) process, where under specific temperature and catalyst conditions, a reducing agent is used to selectively reduce nitrogen oxides (NOx) in the flue gas into non-toxic, non-polluting nitrogen (N2) and water (H2O). The catalyst lowers the activation energy of the reaction, allowing it to occur within a lower temperature range. Typically, the reaction temperature is controlled between 150°C and 450°C.

II. System Components

The rotary kiln flue gas SCR desulfurization and denitrification equipment mainly consists of the following systems:

1. SCR Catalytic Reactor: Located in the high-temperature flue duct, it is the primary site where the catalytic reduction reaction between flue gas and the reducing agent occurs.

2. Ammonia Injection System: Positioned before the flue gas enters the catalyst layer, it is responsible for injecting reducing agents such as ammonia water, liquid ammonia, or urea into the flue gas to ensure thorough mixing.

3. Flue Gas Bypass System: During equipment maintenance or malfunctions, the flue gas can be diverted around the SCR reactor via the bypass system to ensure uninterrupted production.

4. Ammonia Storage and Preparation System: Responsible for storing and preparing the reducing agents required for denitrification.

III. Application Cases

In industrial sectors such as coal-fired power plants and cement plants, rotary kiln flue gas SCR desulfurization and denitrification equipment has been widely adopted. These devices not only effectively reduce the concentration of NOx emissions in flue gas but also enhance the environmental performance and economic benefits of enterprises.