In the production process of energy, chemical engineering and semiconductor sectors, some gas sources, such as waste gas and tail gas from gallium nitride epitaxy process, contain more or less ammonia, which needs to be recovered. Based on this technical requirement, DKT has developed the technology of scrubbing and absorbing ammonia-containing tail gas to produce concentrated ammonia water, which has been successfully applied in many domestic projects, effectively solving a series of problems such as large sulfuric acid consumption, high operating cost and difficult sales of by-product ammonium sulfate in the traditional sulfuric acid washing method.

Technical features and advantages:

- Advanced and proven technology, and stable and reliable operation;

- Considering the optimal investment and energy consumption, the water scrubbing and absorption process can be flexibly configured according to different conditions;

- DKT’s self-developed GXR high-efficiency absorption reactor has fast absorption and mass transfer rate and high purification degree;

- Using ammonia-containing tail gas to produce concentrated ammonia water has good economic benefits.

Application:

- Recovery and utilization of ammonia in ammonia-containing tail gas, such as waste gas and tail gas from gallium nitride epitaxy process.