关键词: 原料干点, 超低压连续重整装置, 预加氢精制油, 重整生成油, 再生系统, 催化剂积炭

Abstract:

The continuous reforming unit of SINOPEC Tahe Refining & Chemical Co., Ltd. is introduced. Starting from the actual operation of the unit, the operating parameters and products are analyzed. The dry point of stable gasoline in No. 1 and No. 2 hydrogenation units are increased to 175.0 ℃, and the dry point of overhead oil of No. 1 and No. 2 atmospheric tower are increased to 184.6 ℃. On the premise of constant reforming reaction temperature, the hydrogen production of reforming gradually increases, and the refined oil can increase 12 m³/t hydrogen; Affected by the increase of the output of pre hydrogenation, the output of mixed xylene increases by 99.78 t, the output of reformed gasoline increases by 1 190.65 t, and the effect of gasoline production increase is obvious; The chlorine injection concentration should be increased to maintain the acidic function of the catalyst, and volume fraction of chlorine in regenerant should be controlled at 0.90%～1.25%; At the same time, the frequency and duration of catalyst stopping circulation shall be reduced as far as possible to avoid excessive carbon deposition of catalyst, which will affect catalyst activity and product quality.

Key words: dry point of feedstock, ultra-low pressure continuous reforming unit, pre hydrotreated oil, reformed oil, regeneration system, carbon deposition of catalyst