Process and installation for the conversion of crude oil to petrochemicals having an improved carbon-efficiency

An integrated process to convert crude oil into petrochemical products including olefins and BTX, the process comprising the steps of:

• distilling crude oil in a refinery unit to produce a gases fraction, resid, naphtha and at least one of kerosene and gasoil;
• upgrading the resid to produce LPG and a refinery unit derived light-distillate comprising hydrocarbons with one aromatic ring and having a boiling point range of 20-200° C. and a refinery unit derived middle-distillate comprising hydrocarbons with two aromatic rings and having a boiling point of 180-360° C.;
• combining the middle-distillate with at least the kerosene or the gasoil from crude distilling to provide a ring opening hydrocracker feed;
• subjecting the ring opening hydrocracker feed to ring opening to produce liquefied petroleum gas (LPG) comprising ethane, propane or butane and additional light distillate comprising hydrocarbons with one aromatic ring and having a boiling point range of 20-200° C.;
• combining the light distillate from resid upgrading and/or light distillate from ring opening hydrocracking with naphtha from crude distilling to provide a hydrocracker feed;
• subjecting the hydrocracker feed to hydrocracking to produce additional LPG) and BTX;
• subjecting the LPG from ring opening hydrocracking and/or from hydrocracker feed hydrocracking to olefin synthesis through pyrolysis of ethane, dehydrogenation of propane, and/or dehydrogenation of
• wherein the olefin synthesis produces hydrogen.