Other

Jain Liu

Zhiming Zhang

The present invention relates to a method for preparing ammonium bicarbonate with flue gas and device thereof. The method includes quantitatively collecting flue gas with a carbon dioxide concentration of about 8% to about 15% (volume), decreasing the temperature of the flue gas to about 50&#xb0; C. or less with an air-cooling apparatus, then increasing the pressure of the flue gas to about 0.4 to about 1.2 MPa, and finally allowing the flue gas to react with liquid ammonia to produce ammonium bicarbonate. The device for preparing ammonium bicarbonate with flue gas includes a flue gas collecting apparatus, an air-cooling apparatus, a gas storing and pressurizing apparatus and an ammonium bicarbonate synthesizing apparatus. The issue of energy consumption brought by conventional cooling approach using cooling water is addressed by using an air-cooling apparatus. Meanwhile, the use of COobtained from recycling the flue gas in synthesizing ammonium bicarbonate may achieve dual objects of not only reducing the discharge of COand improving the environment, but also producing nitrogen fertilizer.

Growing community of inventors

Guangdong, China

Jain Liu