关键词: 配煤, 活性炭, 炭化料, 孔控技术, 吸附脱硫

Abstract: An innovated high-performance coal-based activated carbon was prepared with using Taixi (TX) and Lingwu (LW) coals as raw materials through optimized blending, carbonization and activation processes. This innovated activated carbon was aimed to overcome the shortcomings of coal-based activated carbon. Furthermore, the micro-pore structure and diesel adsorption desulfurization performance of the prepared activated carbon were also characterized and evaluated, respectively. Experimental results show that the optimized coal blending mass ratio of 89%TX+11%LW, activator (KOH) addition mass fraction of 0.8%, the optimized carbonization temperature, heating rate and activation temperature are 600 ℃, 10 ℃/min and 850 ℃, correspondingly. BET characterization results show that the specific surface area and micropore area of the innovated activated carbon (i.e., 984.94 m²/g and 713.3 m²/g, respectively) are similar to those of activated carbon from coconut shells. Especially, the absorption desulfurization performance of the prepared activated carbon is similar or better than that of activated carbon from coconut shells.

Key words: coal blending, acitvated carbon, carbonized material, pore control technique, adsorptive desulfurization