Process for separating naphtha

• Main Authors: ZHANG SHUQING, WU SHUANGQING, HAN JIAXI, ZONG SHIMENG, JU LINQING, LIU PENGBIAO, LIU XUMING, HUANG YONGCHEN
• Format: Patent
• Language: Chinese; English
• Published: 12.07.2022
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMISTRY; CRACKING HYDROCARBON OILS; FUELS; LUBRICANTS; METALLURGY; MINERAL WAXES; ORGANIC CHEMISTRY; 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 discloses a naphtha separation process, and belongs to the technical field of petrochemical engineering. According to the naphtha separation process provided by the embodiment of the invention, the isopentane component, the n-pentane component and the heavy naphtha can be separated from the naphtha only by one dividing wall column, and compared with a two-column separation process, one column and a matched tower top condenser, a reflux tank and a tower bottom reboiler are omitted in the process, so that the production cost is reduced, and the production efficiency is improved. Therefore, the number of equipment and the occupied area are reduced, the investment cost is further reduced, and meanwhile, the energy consumption is reduced. 本申请公开了一种分离石脑油的工艺，属于石油化工技术领域。本申请实施例提供了一种分离石脑油的工艺，该工艺仅需一台隔壁塔即可从石脑油中分离出异戊烷组分、正戊烷组分和重石脑油，相较于两塔分离工艺，该工艺减少了一台塔及其配套的塔顶冷凝器、回流罐和塔底再沸器，从而降低了设备数量和占地面积，进而降低了投资成本，同时降低了能耗。