Flexible gasoline process using multiple feedstocks

A process for refining naphtha comprising:

• during a first time period:
• separating a hydrotreated heavy naphtha feed into a C7-rich fraction and a C8+-rich fraction in a first separation zone;
• introducing the C7-rich fraction into a first reaction zone;
• introducing a stream comprising C4 paraffins into the first reaction zone;
• disproportionating a first portion of the C7-rich fraction by contacting the first portion of the C7-rich fraction with a first liquid catalyst in the reaction zone and reverse disproportionating a second portion of the C7-rich fraction and the C4 paraffins by contacting the second portion of the C7-rich fraction and the C4 paraffins with the first liquid catalyst in the first reaction zone under first reaction conditions suitable for disproportionation and reverse disproportionation to form a first reaction product mixture wherein said reverse disproportionating is in a same reaction zone as said disproportionating, wherein the first liquid catalyst comprises a first unsupported ionic liquid and a first carbocation promoter;
• separating the first liquid catalyst from the first reaction product mixture;
• separating the first reaction mixture in a second separation zone into at least a C3−-rich stream, an iso-C4-rich stream, and a C6+-rich stream;
• introducing the C6+-rich stream into a first hydrocarbon pool;
• and
• reforming the C8+-rich fraction in a reforming zone to form a reformed product and introducing the reformed product into the first hydrocarbon pool;
• and
• during a second time period:
• separating a light naphtha feed into a C5-rich fraction and a C6-rich fraction;
• introducing the C5-rich fraction into a second reaction zone;
• disproportionating the C5-rich fraction by contacting the C5-rich fraction with a second liquid catalyst in the second reaction zone under second reaction conditions to form a second reaction product mixture, wherein the second liquid catalyst comprises a second unsupported ionic liquid and a second carbocation promoter;
• separating the second liquid catalyst from the second reaction product mixture;
• separating the second reaction mixture into at least an iso-C4-rich butane stream, and a C6+-rich stream in a third separation zone;
• introducing the C6+-rich stream into a second hydrocarbon pool;
• and
• isomerizing the C6-rich fraction in an isomerization zone and introducing the isomerized product into the second hydrocarbon pool.