METHOD OF PRODUCTION OF SYNTHESIS GAS AND DEVICE FOR REALIZATION OF THIS METHOD Russian patent published in 2002 - IPC

FIELD: technology of processing hydrocarbon-containing raw material, namely production of synthesis gas from gaseous hydrocarbon-containing raw material. SUBSTANCE: method includes mixing the hydrocarbon- containing raw material with air at ratio corresponding to excess-oxidant coefficient α lesser than 1, forced ignition of air-and-hydrocarbon mixture and partial oxidation of hydrocarbon-containing raw material with oxygen of air in reaction zone, cooling followed by withdrawal of products of process containing synthesis gas and introduction of new portion of hydrocarbon raw material and air; preheating of hydrocarbon raw material and air is effected at increased pressure and elevated temperature which is 50-100 C below autoignition temperature of mixture; process of partial oxidation of hydrocarbon raw material is effected in flow-through combustion chamber; forced ignition is performed at excess-oxidant coefficient of α= 0.6-0.7 and after warming-up the flow-through combustion, oxygen-to-hydrocarbon- containing raw material ratio is brought to level α= 0.30- 0.56. Process of cooling the products of partial oxidation escaping from reaction chamber is effected at rate not below 3000 C/s. Device for realization of said method includes chamber for partial oxidation of hydrocarbon raw material with oxygen of air, mixer, system for expansion and cooling of partial oxidation products and evacuation of synthesis gas. Device is also provided with unit for preheating hydrocarbon raw material and air and hydrocarbon raw material flow regulator. Hydrocarbon-containing raw material partial oxidation chamber is provided with ignition unit and is made in form of flow- through combustion chamber whose inlet is connected with mixer through entrapping grate; mixer is connected with hydrocarbon- containing raw material and air supply pipes which are embraced at spaced relation by recuperative branch pipe whose one end is coupled to outlet of flow-through combustion chamber and other open end is brought into communication with cavity of heat exchanger which is formed by envelope bounding the cavity around recuperative branch pipe. Besides that, tubular hydrocarbon raw material and air heaters are arranged inside heat exchanger. One end of hydrocarbon raw material heater is connected with hydrocarbon raw material flow regulator and other end is connected with mixer through said supply pipe. One end of tubular air heater is connected to air source and other end is connected with mixer through supply pipe. Besides that, heat exchanger is provided with pipe union for evacuation of synthesis gas from its cavity. EFFECT: increased productivity of process. 12 cl, 1 dwg