关键词: 连续重整, 脱烯烃催化剂, 再生, 溴指数, 芳烃损失率

Abstract: This article provides a systematic introduction to the regeneration and post-regeneration performance of the olefin removal catalystTORH-1, which had been in operation for 36 months in the liquid-phase hydrodeolefining unit of 1.0 Mt/a continuous catalytic reforming unit at CNOOCTaizhou Petrochemical Co., Ltd . After the first regeneration, the chlorine, carbon, and sulfur content of the catalyst all met the regeneration index requirements, with a specific surface area increase of 10 m²/g and a pore volume increase of approximately 5%. Data from 20 months of operation after regeneration show that under the conditions of a reaction pressure of 1.2 MPa, a temperature range of 120－160 ℃, and a hydrogen-to-oil volume ratio of 4.5:1, when the feedstock bromine index was 3,500－4,200 mgBr/(100 g), the average product bromine index remained stable at 53.48 mgBr/(100 g). The olefin removal rate reached 98.68%, and the average aromatics loss rate meets the specification requirements. The bromine index of the benzene, toluene, and xylene products met the national standards for product shipment, indicating effective catalyst regeneration. Compared to the clay treatment process, the use of the TORH-1 olefin removal catalyst resulted in cost savings of 12.6 million yuan.

Key words: continuous reforming, olefin removal catalyst, regeneration, bromine index, aromatics loss rate