图共 6个 表共 8
    • 图  FIG. 523.  FIG. 523.

      Figure FIG. 523..  FIG. 523.

    • 图  1  四塔等效模型示意图

      Figure 1.  Schematic diagram of the four tower equivalent model

    • 图  2  分隔壁精馏塔简捷计算流程图

      Figure 2.  Shortcut procedure applied for the calculation of dividing wall column

    • 图  3  精馏段逐板衡算示意图

      Figure 3.  By-board accounting schematic diagram of rectifying section

    • 图  4  提馏段逐板衡算示意图

      Figure 4.  By-board accounting schematic diagram of stripping section

    • 图  5  HYSYS模型图

      Figure 5.  HYSYS model figure

    • FeedMixtures(A/B/C)IES
      F1n-Pentane/Hexane/Heptane1.04
      F2Pentane/Hexane/Octane0.46
      F3Ethane/Propane/Isobutane1.79

      表 1  不同分离指数的进料

      Table 1.  Feeds with different separation indexes

    • Feed D S xDA xSB xWC
      F1 33.40 31.67 0.985 1 0.990 0 0.967 0
      F2 33.15 31.67 0.994 5 0.990 0 0.958 3
      F3 33.52 31.67 0.980 9 0.990 0 0.971 0

      表 2  设计规定

      Table 2.  Design specification

    • Feed N1_1 N1_2 N1 N2 N3_1 N3_2 N3 N4 NT R
      F1 10 11 20 6 8 8 17 6 29 4.32
      F2 6 7 12 3 4 6 11 4 18 3.04
      F3 8 6 13 6 8 4 13 2 21 4.32

      表 3  简捷设计计算结果

      Table 3.  Calculation result of shortcut design

    • Feed${y_{_{{V_{1\_1}}i}}}$$ {x_{_{ {L_{1\_1} }i}} } $${y_{_{ {V_{1\_2} i} } } }$${x_{_{ {L_{1\_2} i} } } }$
      F10.620 10.535 60.000 90.001 1
      0.379 10.463 40.486 50.575 7
      0.000 80.001 00.512 50.423 2
      F20.802 10.738 80.000 90.000 7
      0.197 00.260 00.659 20.530 7
      0.000 90.001 10.339 90.468 6
      F30.493 60.380 80.001 80.001 5
      0.505 80.618 40.158 30.137 2
      0.000 60.000 70.839 00.861 3
      i presents feed A, B, C, respectively

      表 4  连接流组分摩尔分数

      Table 4.  Connecting flow component mole fraction

    • Feed$\Delta {y_{_{{V_{1\_1}}i}}}$$\Delta {x_{_{{L_{1\_1}}i}}}$$\Delta {y_{_{{V_{1\_2}}i}}}$$\Delta {x_{_{{L_{1\_2}}i}}}$
      F10.001 6−0.004 000.000 1
      00.004 0−0.001 2−0.002 0
      −0.001 600.001 20.001 9
      F20.003 1−0.005 600.000 2
      0.000 10.005 6−0.003 5−0.002 7
      −0.003 20.000 10.003 50.002 5
      F30.000 3−0.018 000.000 3
      0.000 80.017 9−0.004 6−0.005 4
      −0.001 100.004 70.005 1
      i presents feed A, B, C, respectively

      表 5  简捷计算与严格模拟结果对比

      Table 5.  Comparison between shortcut design and strict simulation results

    • Item N1_1 N1_2 N1 N2 N3_1 N3_2
      This paper 10 11 20 6 8 8
      Literature[36] 10 16 25 5 12 13
      Literature[24] 11 11 21 7 11 10
      Item N4 NT R L11 Cost/(104CNY·a−1)
      This paper 6 29 4.32 35.47 154.28
      Literature[36] 8 38 3.66 26.57 177.08
      Literature[24] 11 39 3.17 24.44 162.63

      表 6  本文方法与文献方法结果对比

      Table 6.  Comparison of the results in this paper with those in the literatures

    • Item $\Delta {y_{{V_{1\_1}}i}}$ $\Delta {x_{{L_{1\_1}}i}}$ $\Delta {y_{{V_{1\_2}}i}}$ $\Delta {x_{{L_{1\_2}}i}}$
      This paper 0.001 6 0 −0.001 6 −0.004 0 0.004 0 0 0 −0.001 2 0.001 2 0.000 1 −0.002 0 0.001 9
      Literature[36] 0.008 6 0.005 5 0.003 1 0.001 2 0.000 4 0.001 6 0.002 8 0.017 6 0.014 8 0.002 2 0.008 6 0.006 3
      Literature[24] 0.109 8 0.100 1 0.009 6 0.257 2 0.256 6 0.000 6 0.002 6 0.151 0 0.153 6 0.005 6 0.081 8 0.087 5

      表 7  本文方法与文献方法计算得到的连接流组分摩尔分数差异对比

      Table 7.  Comparison of the mole fraction difference of the connecting flow component calculated in this paper with those in the literatures

    • Feed xDA xSB xWC
      F1 0.993 0 0.990 2 0.971 4
      F2 0.999 3 0.993 2 0.969 0
      F3 0.986 8 0.989 9 0.993 5

      表 8  严格模拟后产物的摩尔分数

      Table 8.  Mole fraction of product by strict simulation