@article{souza_bragança_2017,  title={EVALUATION OF LIMESTONE IMPURITIES IN THE DESULFURIZATION PROCESS OF COAL COMBUSTION GAS},  volume={34},  ISSN={0104-6632},  url={https://doi.org/10.1590/0104-6632.20170341s20150168},  DOI={10.1590/0104-6632.20170341s20150168},  number={1},  journal={Brazilian Journal of Chemical Engineering},  publisher={Brazilian Society of Chemical Engineering},  author={Souza, F. de and Bragança, S. R.},  year={2017},  month={Jan},  pages={263–272} }