DELAYED COKING PROCESS WITH WATER AND HYDROGEN DONORS

摘要

A residual oil feedstock comprises carbon residue measured according to ASTM D-4530. The feedstock is admixed with water/steam in an amount of 10 wt% to 30 wt% and optionally a hydrogen donor, such as methane and/or gas oil derived from recycle. The resulting admixture is subjected to delayed coking reaction conditions. The process yields hydrocarbon liquids in an increased amount. Coke make and gas make are thereby reduced.