Method for preparing adsorbing material by utilizing fine coal gasification slag

The invention relates to a method for preparing an adsorption material by using fine coal gasification slag, which comprises the following steps: step 1, drying the fine coal gasification slag, adding water and 20% KOH, and fully mixing and stirring to prepare slurry; step 2, drying the slurry, and controlling the moisture of fine slag after drying; step 3, isolating the dried product from air and heating; and 4, dissolving the dried product in water, adding diluted hydrochloric acid, slowly stirring, filtering, and drying to obtain the coal gasification ash-based adsorption material. The specific surface area of the adsorption material reaches 360 m < 2 >/g, and the benzene adsorption value reaches 300 mg/g. The specific high-carbon component and porous structure of the fine slag are fully utilized, comprehensive utilization of the coal gasification fine slag is achieved, and industrial application and popularization are facilitated. 本发明涉及一种利用煤气化细渣制备吸附材料的方法，步骤为：步骤1：将煤气化细渣烘干，加入水与20％KOH充分混合搅拌制成浆料；步骤2：将浆料烘干，控制烘