Microwave irradiation pretreatment and peroxyacetic acid desulfurization of coal and application of GRNN simultaneous predictor

► Coal desulfurization was modeled using General Regression Neural Networks (GRNN). ► The GRNN with spread of 0.3 was the best estimator for sulfur reduction. ► GRNN predicted organic and pyritic sulfur reduction with R2 of 0.97 and 0.99.