Lignocellulose is a by-product of furfural production and 2/3 of the left-over lignocellulose is used as a fuel in a boiler house and the rest 1/3 could be used as a raw material for activated carbon production. The activated carbon prepared by short term activation has properties of high-density microporous sorbents appropriate for purifying the gaseous medium. The technology of processing fine-grained hardwood lignocellulose is environmentally friendly and energetically self-sufficient.