IMPROVEMENTS IN OR RELATING TO A PROCESS FOR THE PRODUCTION OF SYNTHESIS GAS SUITABLE FOR AMMONIA MANUFACTURE FROM FEEDSTOCKS RANGING FROM NATURAL GAS TO LIGHT PETROLEUM DISTILLATES

摘要

A process for production of ammonia synthesis gas from feedstock hydrocarbon ranging from natural gas to light petroleum distillates which comprises subjecting the hydrocarbon to a step of double reformation at elevated pressure and temperature; the conversion in the two reformation stages i.e. primary reformation and secondary reformation being carried out in the presence of conventional reformation catalyst characterized in that:(i) the primary reformation is carried out at pressure of the order of 45 kg/cm2 to 50 kg/cm2;(ii) the secondary reforming is carried out in presence of air having 22 to 30% oxygen by volume;(iii) the primary reformation is carried out at temperatures of the order of 715 degree to 740 degree Celsius and wherein;(iv) the conventional steam turbine drive for air compressor in the process is replaced by gas turbine drive.