The invention discloses
plant fuel
charcoal prepared from wormwood residues and a preparation method of the
plant fuel
charcoal. The method comprises the following steps of:
drying and crushing residues obtained after
deep processing of wormwood serving as main raw materials, plasticizing, bonding and forming
lignin of the residues under the high temperature of 150-250 DEG C and the
high pressure of 10-30MPa under the condition of not adding any chemical
adhesive, and carbonizing at low temperature in an
oxygen-limited environment of 300-500 DEG C, thereby obtaining the product. The density of the obtained fuel carbon is 0.8-1.2 g / cm < 2 >, the
compressive strength is 5-15 MPa, the
combustion heat value is 4500-5800 kcal / kg, the ash content is 3%-8%, the volatile component content is 15%-25%, and the
fixed carbon content is 70%-80%. High-valued utilization of wormwood waste is achieved, the obtained fuel
charcoal emits fresh wormwood fragrance during
combustion, has the auxiliary effects of repelling mosquitoes and purifying air, is little in
combustion smoke and stable in heat value, and is suitable for various scenes such as family barbecue, surrounding furnace tea boiling, outdoor camping and
atmosphere building. The method is simple in process, low in cost and easy to industrialize, and has good economic and
social benefits.