UPGRADING A HEAVY HYDROCARBON FEEDSTOCK AND PRODUCING A PITCH FRACTION

• Main Authors: AL-SABAWI, MUSTAFA, AGRAWAL, GAURAV, FERRUGHELLI, DAVID T, SMITH, STUART E
• Format: Patent
• Language: English; French
• Published: 28.02.2023
• Subjects: CHEMISTRY; COMPOUNDS THEREOF; CRACKING HYDROCARBON OILS; FUELS; INORGANIC CHEMISTRY; LUBRICANTS; METALLURGY; MINERAL WAXES; NON-METALLIC ELEMENTS; PEAT; PETROLEUM, GAS OR COKE INDUSTRIES; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVEHYDROGENATION, OLIGOMERISATION, POLYMERISATION; PYROLIGNEOUS ACID; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; TECHNICAL GASES CONTAINING CARBON MONOXIDE; WORKING-UP PITCH, ASPHALT, BITUMEN, TAR

A disclosed method comprises providing a heavy hydrocarbon feedstock comprising paraffinic froth treated bitumen and/or solvent de-asphalted bitumen; thermally cracking the heavy hydrocarbon feedstock to produce a cracked stream and a gas; distilling the cracked stream to produce a distillation bottoms stream and a naphtha and distillates stream; and de-asphalting the distillation bottoms stream to produce a pitch fraction and de-asphalted oil (DAO). Un procédé décrit comprend la fourniture dune charge dalimentation dhydrocarbures lourds comprenant un bitume traité de mousses paraffiniques et/ou un bitume désasphalté de solvant; le craquage thermique de lalimentation dhydrocarbures pour produire un courant craqué et un gaz; la distillation du courant craqué pour produire un courant de fond de distillation et un courant de naphte et de distillats; et le désasphaltage du courant de fond de distillation pour produire une fraction de pas et de lhuile désasphaltée.