Ammonia-ammonium sulfate desulfurization technology

Ammonia-ammonium sulfate desulfurization technology

The ammonia-sulfuric acid desulfurization process uses ammonia as an absorbent to absorb sulfur dioxide in flue gas to produce ammonium sulfite. The ammonium sulfite liquid is oxidized by air to produce ammonium acid, which is then filtered, concentrated, separated, dried bathed and packaged After the process, ammonium sulfate by-product is obtained.

Features

    • Ammonia has good reactivity and high desulfurization efficiency;
    • By-product ammonium sulfate is a commonly used fertilizer, and sales revenue can reduce operating costs;
    • is suitable for high-sulfur coal, the higher the sulfur content of coal, the operation The higher the income; the
    • system is responsible, the investment is large, and the area is large;
    • is restricted by wastewater discharge. The system is highly corrosive. It is difficult to control aerosol escape.