Naphtha processing method and naphtha processing system

• Main Authors: YANG SHIQI, WANG HONGLI, YUAN ZIQING, LIU YIXIN, BIAN GANGYUE, WANG HANGZHOU, JI YE
• Format: Patent
• Language: Chinese; English
• Published: 11.07.2023
• Subjects: CHEMISTRY; CRACKING HYDROCARBON OILS; FUELS; LUBRICANTS; METALLURGY; MINERAL WAXES; PEAT; PETROLEUM, GAS OR COKE INDUSTRIES; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVEHYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; TECHNICAL GASES CONTAINING CARBON MONOXIDE

The invention provides a naphtha processing method and a naphtha processing system. The method comprises the following steps: carrying out fractionation treatment on a naphtha raw material by using a naphtha fractionating tower to obtain a first tower top material, a first tower middle material and a first tower bottom material; wherein the first tower top material comprises a material capable of being used as an ethylene cracking raw material, the first tower bottom material comprises a material capable of being used as a catalytic reforming device raw material, and the first tower middle material comprises a material capable of being used as a feed of a C5 fractionating tower; fractionating the first tower middle material by using a C5 fractionating tower to obtain a second tower top material and a second tower bottom material; wherein the second tower top material comprises a material capable of being used as an isopentane product or a gasoline blending component, and the second tower bottom material compr