Capturing CO2 and Recovering NH3 by Producing Ammonium Bicarbonate Through Stripping Batch Process at Lab Scale

Ansa Mahar; Naveed Qambrani; Zubair Ahmed

Authors

Ansa Mahar U.S-PCAS-W Mehran University of Engineering and Technology Jamshoro
Naveed Qambrani U.S-PCAS-W Mehran University of Engineering and Technology Jamshoro
Zubair Ahmed U.S-PCAS-W Mehran University of Engineering and Technology Jamshoro

Keywords:

Ammonium Bicarbonate, Ammonium Hydroxide, Carbon dioxide, Stripping Batch Process, Recovering

Abstract

A sustainable Environment is a crucial need for today’s world. To save energy, reduce pollution, and save the economy, researchers are coming up with various sustainable waste management practices to reduce air pollution and water pollution. The production of cement, chemical processing, and power plants are among the industries that release the most CO₂. These emissions can be greatly decreased via ammonia-based absorption, which helps to make industrial processes cleaner. One of the methods among all the technologies and solutions is the stripping process where CO₂ can be captured by removing ammonia from the water. Not only this but also the chemical is produced NH₄HCO₃ which can be used in industries or as fertilizer. In this study, A lab-scale stripping process is studied for the recovery of ammonia and capture of CO₂ at different experimental conditions which were not studied by other researchers in previous studies. Apart from that, the precipitated product is studied by various characterization techniques including SEM-EDS and XRD. Results show that varying absorption times and flow rates of CO₂ and concentrations of solutions affect product quantity. The research concludes the optimum conditions to achieve maximum product i.e., NH₄HCO₃ was 110 min, 0.5 CO₂ gas flow rate, and 15 % NH₄OH solution.

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