'Alternative fuels, emissions' - the hot topics of the cement industry

摘要

Everyone in our industry is currently dealing with the subject of "alternative fuels" in some form. Or with the topic "emissions". Or with both ... These topics are prime examples of process optimization because they not only explain the motivational situation, but often painfully illustrate the interconnection of causes and effects. And here, too, it has been confirmed over the past decades: learning is often painful, but it helps us moving forward. What we have learned: What is considered alternative fuel today may be noble fuel tomorrow (see petroleum coke), secondary fuel does not necessarily increase pollutant emissions (AF with high volatile content reduces NO_x), wood burns well in the fireplace - and often too long in the calciner ...