Abstract: The design characteristics of the 3.8 MM TPY CCR unit in Zhejiang Petroleum & Chemical Co., Ltd. are as follows: the layout of reforming reactors adopts“3+2” two row overlapping type, and optimized trapezoidal tube structure is selected for sector cylinder; the reaction furnace is consisted of feed furnace, the third and the fourth intermediate furnace, while the first and the second intermediate furnace are equipped with two series furnaces combined as one box furnace and a set of waste heat recovery system; the compressor adopts the parallel design of reforming hydrogen cycle machine and reforming hydrogen supercharger, in which the reforming hydrogen supercharger selects “one drive three” form, that is, a steam turbine drives three compressors. The calibration results of full load operation of unit are analyzed. The yield of aromatics is 76.04%; liquid yield of C⁺₅ is 88.21%; the yield of pure hydrogen is 4.37%; the amount of catalyst dust is 8.38 kg/d; the energy consumption of unit is 3,425.008 MJ/t. The purity of hydrogen produced by CCR unit and the reformate provided to aromatics unit are close to the design requirements, which shows the feasibility of technology and engineering design of the unit. At the same time, it has important reference significance for process selection and engineering construction of large-scale CCR unit.

Key words: CCR unit, fist calibration, mixed feedstock, main operating parameters, reformate composition, material balance, energy consumption

摘要： 公司3.8 Mt/a连续重整装置工程设计的特点:重整反应器的布置采用“3+2”两列重叠式的方案,扇形筒选用优化的梯形筒结构;反应加热炉采用进料加热炉、第三中间加热炉和第四中间加热炉组成三合一炉,第一中间加热炉和第二中间加热炉设置两个串联炉膛二合一箱式加热炉,且配有一套余热回收系统;压缩机组采用重整氢循环机与重整氢增压机并联设计,其中重整氢增压机选用“一拖三”形式,即一台汽轮机驱动三台压缩机。装置满负荷运转标定结果:芳烃收率76.04%,C⁺₅液体收率88.21%,纯氢产率4.37%,催化剂粉尘量8.38 kg/d,装置能耗3 425.008 MJ/t,结果表明:重整产氢纯度及向芳烃装置提供的重整油接近设计要求指标,说明该装置工艺技术和工程设计具有可行性,同时对今后国内大规模连续重整装置的工艺选择及工程建设具有借鉴意义。

关键词: 连续重整装置, 首次标定, 混合进料, 主要操作参数, 生成油组成, 物料平衡, 能耗