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

摘要：

介绍了中国石化塔河炼化有限责任公司连续重整装置情况。从装置实际运行出发，对原料干点调整后的操作参数和产品进行分析。结果表明：1号加氢、2号加氢稳定汽油干点提升至175.0℃,1号常压塔顶(常顶)油、2号常顶油干点提升至184.6℃,在重整反应温度不变的前提下，重整产氢量逐步上升，精制油可增产12 m³/t氢气；预加氢原料的产量增加，受此影响混合二甲苯产量增加99.78 t,重整汽油产量增加1 190.65 t,汽油增产效果明显；为维持催化剂酸性功能，应提高注氯浓度，再生剂氯体积分数控制在0.90%～1.25%;同时，尽可能减少催化剂停止循环的频次和时长，避免催化剂积炭过多，影响催化剂活性和产品质量。

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