HIGH EFFICIENCY PROCESSES FOR OLEFINS ALKYNES AND HYDROGEN CO PRODUCTION FROM LIGHT HYDROCARBONS SUCH AS METHANE

摘要

pHigh efficiency processes for producing olefins alkynes and hydrogen co production from light hydrocarbons are disclosed. In one version the method includes the steps of combusting hydrogen and oxygen in a combustion zone of a pyrolytic reactor to create a combustion gas stream transitioning a velocity of the combustion gas stream from subsonic to supersonic in an expansion zone of the pyrolytic reactor injecting a light hydrocarbon into the supersonic combustion gas stream to create a mixed stream including the light hydrocarbon transitioning the velocity of the mixed stream from supersonic to subsonic in a reaction zone of the pyrolytic reactor to produce acetylene and catalytically hydrogenating the acetylene in a hydrogenation zone to produce ethylene. In certain embodiments the carbon efficiency is improved using methanation techniques./p