Nitrogen+Syngas 310 Mar-Apr 2011
30 April 2011
Problem No. 5: H₂SO₄ injection in urea melt
The urea industry continuously strives to reduce ammonia and urea dust emissions from urea plants. The previous reported Round Table discussion (No.4) collected different solutions actually being applied in urea plants to reduce gaseous ammonia and urea dust emissions. This time a new, interesting and challenging possible solution, injecting sulphuric acid (H2SO4) in the urea melt, will be discussed. This solution was tested at Phu My Fertilizer plant in Vietnam and immediately prompted a lively discussion in the UreaKnowHow.com Round Tables. The mixing of urea with sulphuric acid was already the subject of research programmes in the early 1980s and the information available in the public domain was helpful in gaining a better understanding of the phenomena observed.
