This paper presents the impact of thermal lag on progress different coal types’ gasification by CO2. The analysis was performed using thermogravimetry and numerical modeling. Experiments were carried out at a heating rate 1–50 Kmin−1 temperature ranging from 383 to 1173 K. developed model enabled determination true sample considering process consist two single-step consecutive reactions. Analys...

an analytical study was performed to study effects of thermo-diffusion and chemical reactions on a three-dimensional mhd mixed convective flow of dissipative fluid along an infinite vertical porous plate with transverse sinusoidal suction velocity. the parabolic partial differential equations governing the fluid flow, heat transfer, and mass transfer were solved using perturbation technique and...

Pigment Red3 was synthesized and chemically treated by sulphonation. The treatment, affected the surface chemistry and the shape of pigments. The effects of reaction time, temperature, Solvent/Pigment ratio and Acid/Pigment ratio were examined on the treated pigment. The investigation of experimental design based on Tauguchi method, was carried out. To assessment of treated particles, UV-visibl...