Experimental study on preparation of desulfurated and denitrated activated charcoal using compound binder as a partial substitute of coal tar

Experimental study is made on the preparation of desulfurated and denitrated carbon using compound binder in place of part of coal tar, with the anthracite of Shanxi Province as the main material and the non-sticking coal and 1/3 coking coal as auxiliary materials. It is intended to investigate the effect of proportions of blending coal on adsorptivity and pore size distribution of activated carbon on strength of prepared carbon. Result of study indicates that: increasing the blending proportion of Taixi anthracite is helpful to the development of micropores while the increase of the proportions of 1/3 coking coal and Fugu coal is conducive to the formation of medium-sized pores; the strength of prepared carbon tends to gradually weaken with increase of loss on ignition; and use of compound binder as a partial substitute for coal tar makes it possible for the prepared carbon to be up to the user-specified standards in both absorptivity and strength.