Application and modeling of high gradient magnetic filtration in a particulate/gas system

A theoretical and experimental investigation was conducted to assess the potential use of high gradient magnetic filtration as a method of collecting particulate matter from industrial stack gases. Preliminary calculations and bench-scale experiments were utilized to demonstrate the ability of HGMS to collect fine gas-borne particles and to provide guidelines for the design of a pilot-scale unit. An experimental program was then conducted in the pilot plant using dispersed dusts obtained from two steel industry processes. A theoretical particle trajectory model was used to analyze the results and to study the effects of particle characteristics and system operating parameters. The results indicate that high-efficiency collection of fine particles can be achieved with operating conditions that project to reasonable full-scale capital costs and power requirements.