Diesel and bunker fuel exhaust contains a mix of pollutants: soot particles, metals, smog-forming gases, carcinogens and other toxic, hazardous chemicals. Particle ‘soot’ formation during combustion starts with the condensation of volatile components in hot exhaust gases. This typically leads to a twin peak distribution: 0.1-0.8μm and 3-10μm. In the 3-10μm particle range, Estuary’s SwirlSep will show a >98% removal rate with minimal maintenance costs.  In the 0.1-0.8μm range a substantial removal is also expected, particularly when water is being sprayed into the unit to reduce SOx. Alternatively a SuperSep can be deployed for the very fine dust removal.

Current smoke dust/soot separation systems like scrubbers, particulate filters, gas circulation systems have a relatively low performance, are bulky and costly in purchase and have high maintenance costs. Present conventional technologies cannot fulfill future (conflicting) requirements regarding SOx, NOx, CO, and poly-nuclear aromatic hydrocarbons.

With Estuary’s SwirlSep for smoke dust/soot removal in place, marine engines can be optimized for reduced NOx and CO emissions. Initial trials to confirm the performance will be land-based and are scheduled for early 2017.