Hydropyrolysis of pretreated high-boiling hydrocarbon fractions
1997
Abstract Hydropyrolysis of different types of high-boiling hydrocarbon fractions (straight-run distillates of different boiling range, dearomatized fractions and a hydrocracked fraction) was studied and the results were compared with pyrolysis (steam cracking) carried out under similar operating conditions. In all cases, a substantial increase in the yield of ethylene, a total yield of olefins and a total yield of C 2 hydrocarbons, were observed. The possibility of limiting the amount of H 2 O by replacing it with H 2 , CH 4 or N 2 , has been demonstrated. Hydropyrolysis was also shown to be effective in the case of a feedstock pretreated by dearomatization or hydrocracking.
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