FIELD: technological processes.
SUBSTANCE: invention relates to processing of organic substances as mono-composition, and complex composition (raw material), namely to method of high-temperature ablation pyrolysis. Method of processing organic material to produce synthetic high-calorie gas includes steps at which raw material is crushed to fraction of 1–3 mm by means of a drying-grinding unit and moisture content is reduced to 2–5 %, raw material is supplied to gasifier, which is a cylinder with spiral chutes inside and made of stainless nickel-containing heat-resistant steel, walls of which are initially heated by external electric inductor to temperature of 750 °C, wherein the raw material is supplied to the rotary conical disk-sprayer, from which is scattered along the walls, and along the spiral chutes is lowered down, during which it decomposes into a steam-gas fraction and pyrolysis coke. Steam-gas mixture from gasifier via two branch pipes enters high-temperature cyclone filters, where main part of pyrolysis coke particles carried away with gas is separated and cooled in gas-air heat exchangers up to 250 °C, after which gas mixture is fed into rectification column (scrubber), where the mixture is separated into a liquid fraction, which is removed from the column into a storage tank for pyrolysis liquid, and gas, which is cooled in the scrubber to temperature of 50 °C and is transmitted to the adsorption filter, after which gas is supplied to the duplex gas fine filter with cell size 5 mcm and then to centrifugal compressor increasing gas pressure to 25–70 kPa and heating gas to 80–120 °C, after which gas is supplied to cooling system with separator, where gas temperature is lowered and maintained at 65–75 °C, as well as high-hydrocarbon vapors are condensed, which are discharged into vessel with pyrolysis liquid, and gas fraction is supplied to input of receiving equipment for further use as energy carrier.
EFFECT: high quality of purifying an end product (synthesis gas) from solid and liquid fractions by performing five purification steps and monitoring temperature and pressure of gas at all stages of producing gas.
1 cl, 5 dwg
