| 摘要 |
FIELD: chemistry. ^ SUBSTANCE: invention relates to a method for plasma processing of material in an electric arc plasmatron, based on reaction of the material with oxygen or oxygen and water vapour to obtain synthetic gas, a step for converting the synthetic gas and using auxiliary steps - heat recirculation, electric power generation, purification and compression of the synthetic gas, separation of gases and air. The stream of gaseous hydrocarbon material together with hydrogen, separated from relief gas from the synthetic gas conversion step, is heated and fed to the hydrogenation and purification step, wherein one part of the purified hydrocarbon material, together with oxygen or oxygen and water vapour separated from air, is fed into at least one electric arc plasmatron of a plasma-chemical reactor, and the other part of the purified hydrocarbon material at temperature 200-400C is fed to a step for saturation and purification from methanol, where the gas stream is brought into contact with methanol water which is fed to the synthetic gas conversion step, heated at the heat recirculation step and together with heated oxygen or oxygen and water vapour is fed into the mixing chamber of the plasma-chemical reactor, into which products of converting the first part of the purified hydrocarbon material is fed. The obtained gas mixture at temperature 800-1500C is fed to a hydrocarbon conversion catalyst lying in the plasma-chemical reactor or in a reforming reactor, to obtain synthetic gas which is cooled at the heat recirculation step and after passing through the compression step, is fed into the catalytic reactor of the synthetic gas conversion step. The synthetic gas conversion step is carried out under pressure of 40-120 atm on a bifunctional catalyst with average temperature in the reactor of 360-420C and recirculation of gaseous products of reaction and unreacted components of the synthetic gas with multi-step cooling of the gas coming out of the reactor to 10-30C and condensation of the organic end product, for example, a gasoline fraction and by-products - methanol water and hydrocarbon gases which are fed into the plasma-chemical reactor or to the electric power generation step. The invention also relates to a version of the method for plasma processing of material. ^ EFFECT: high efficiency of processing organic material, maximum utilisation of the energy potential of the material while ensuring ecologically clean production. ^ 11 cl, 7 dwg, 6 ex |
