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Visbreaking: Theory and Practice

“…Improvement and implementation of vacuum distillation of atmospheric resid (equipping vacuum towers with high-efficiency and high-output packing, liquid injector vacuum systems [3]) allows refining high-end-point (with density of up to 1100 kg/m 3 ) vacuum resids [4]. Thermal degradation processes that result in a mixture of hydrocarbons of lower molecular weight and viscosity are most suitable for further refining of such residues.…”