@article{MAKHILLAJ20105320390, title = {Determination of the Rate of Calcination During Cement Production}, journal = {Agricultural Journal}, volume = {5}, number = {3}, pages = {186-189}, year = {2010}, issn = {1816-9155}, doi = {aj.2010.186.189}, url = {https://makhillpublications.co/view-article.php?issn=1816-9155&doi=aj.2010.186.189}, author = {C.I.O. and}, keywords = {Calcination,cement,rate,decomposition,limestone,clinker,calcium carbonate}, abstract = {Rate data were collected for calcinations during cement production for 4 years at the same time intervals. The amount of CaCO3 consumed in tons was plotted against time in minutes. The plots gave good numerical fit (R2>0.99) for all the model equations studied but the parameter estimates for K, CAO and n varied widely (>5%) for all rate equations except the rate equation for zero order reaction which has an average rate constant of 1.41275 tons min-1 and an average percentage deviation of 3%. Calcination is a zero order reaction based on the equation, CAO-CA = Kt with an average reaction rate constant of 1.41275 tons min-1. This rate model will serve as a basis for the design of rotary kiln for calcinations processes. The model equation obtained from this research may also be used to simulate and optimize processes for cement production.} }