Following a new EPC order from Cimpor, booked at the end of last year, FLSmidth will deliver a chlorine bypass solution, eliminating chlorine build-up in the flue gas as Cimpor plan to increase their alternative fuel rate to above 60%. Work on the chlorine bypass is expected to start in Q3 2021, with production returning to normal in early 2022.
"Investing in the chlorine bypass is a key step on our journey towards reducing our environmental footprint," explains Paulo Evangelista, project manager at Cimpor. "On top of the obvious incentives to increase our fuel substitution like less CO2 emissions and financial savings, we are experiencing better waste handling infrastructure in the local area. "FLSmidth knows our Souselas site and has been key in delivering a solution that will enable this next phase on our sustainability journey."
"We are very excited to be back on the ground in Souselas," says Omar Rabia, sales manager at FLSmidth. "Back in 2001, we upgraded the kiln and installed an SF Cooler and Downdraft calciner at the site, giving us a head start on the bypass upgrade. We are really happy to be a part of this new project and the continued journey towards sustainable productivity at Souselas."
Cimpor expects around 40% of future heat consumption to come from refuse-derived fuel (RDF). RDF tends to lead to higher concentrations of chlorine in the gas streams. When chlorine can no longer be absorbed in the calcination and clinker process, the flue gas is funnelled via the bypass, cooled down and filtered. In many cases, the excess chlorine can be added at a later stage in the process.
The benefits enabled by the chlorine bypass, such as reduced CO2 emissions and higher substitution rates, make this solution a flagship for FLSmidth's MissionZero programme in Cement. MissionZero is the company's sustainability ambition to enable customers to run cement production at zero emissions in 2030.